jenkins-bot has submitted this change and it was merged. ( 
https://gerrit.wikimedia.org/r/368372 )

Change subject: Wikibase: "data-values/data-values": "1.1.0"
......................................................................


Wikibase: "data-values/data-values": "1.1.0"

Change-Id: Ife17982fb9687dc9dc36e2be42dc54cd4b97e4d8
---
M composer.json
M composer.lock
M composer/autoload_classmap.php
M composer/autoload_files.php
M composer/autoload_namespaces.php
M composer/autoload_static.php
M composer/installed.json
A data-values/data-values/.gitignore
A data-values/data-values/.scrutinizer.yml
A data-values/data-values/.travis.yml
A data-values/data-values/COPYING
A data-values/data-values/DataValues.php
A data-values/data-values/README.md
A data-values/data-values/composer.json
A data-values/data-values/phpunit.xml.dist
A data-values/data-values/src/DataValues/BooleanValue.php
A data-values/data-values/src/DataValues/DataValue.php
A data-values/data-values/src/DataValues/DataValueObject.php
A data-values/data-values/src/DataValues/IllegalValueException.php
A data-values/data-values/src/DataValues/NumberValue.php
A data-values/data-values/src/DataValues/StringValue.php
A data-values/data-values/src/DataValues/UnDeserializableValue.php
A data-values/data-values/src/DataValues/UnknownValue.php
A data-values/data-values/src/interfaces/Comparable.php
A data-values/data-values/src/interfaces/Copyable.php
A data-values/data-values/src/interfaces/Hashable.php
A data-values/data-values/src/interfaces/Immutable.php
A data-values/data-values/tests/bootstrap.php
A data-values/data-values/tests/phpunit/BooleanValueTest.php
A data-values/data-values/tests/phpunit/DataValueTest.php
A data-values/data-values/tests/phpunit/NumberValueTest.php
A data-values/data-values/tests/phpunit/StringValueTest.php
A data-values/data-values/tests/phpunit/UnDeserializableValueTest.php
A data-values/data-values/tests/phpunit/UnknownValueTest.php
34 files changed, 2,210 insertions(+), 1 deletion(-)

Approvals:
  Legoktm: Looks good to me, approved
  jenkins-bot: Verified



diff --git a/composer.json b/composer.json
index 4fef5da..e9a5533 100644
--- a/composer.json
+++ b/composer.json
@@ -37,6 +37,7 @@
        "require": {
                "composer/semver": "1.4.2",
                "cssjanus/cssjanus": "1.2.0",
+      "data-values/data-values": "1.1.0",
                "data-values/interfaces": "0.2.5",
                "diff/diff": "2.2.0",
                "firebase/php-jwt": "4.0.0",
diff --git a/composer.lock b/composer.lock
index 5eca5be..feb54ab 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at 
https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file";,
         "This file is @generated automatically"
     ],
-    "content-hash": "776381472caad0924789a3f947d84b8f",
+    "content-hash": "9658d48475a992ffd1943e20f7e776d2",
     "packages": [
         {
             "name": "composer/semver",
@@ -104,6 +104,65 @@
             "time": "2017-03-14T20:57:08+00:00"
         },
         {
+            "name": "data-values/data-values",
+            "version": "1.1.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/DataValues/DataValues.git";,
+                "reference": "c855a1c58b52030b40d8568094f07e24a88e9fd2"
+            },
+            "dist": {
+                "type": "zip",
+                "url": 
"https://api.github.com/repos/DataValues/DataValues/zipball/c855a1c58b52030b40d8568094f07e24a88e9fd2";,
+                "reference": "c855a1c58b52030b40d8568094f07e24a88e9fd2",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.0"
+            },
+            "replace": {
+                "mediawiki/data-values": "*"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0.x-dev"
+                }
+            },
+            "autoload": {
+                "files": [
+                    "DataValues.php"
+                ],
+                "classmap": [
+                    "src/interfaces",
+                    "tests/phpunit/DataValueTest.php"
+                ],
+                "psr-0": {
+                    "DataValues\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/";,
+            "license": [
+                "GPL-2.0+"
+            ],
+            "authors": [
+                {
+                    "name": "Jeroen De Dauw",
+                    "email": "jeroended...@gmail.com",
+                    "homepage": "http://jeroendedauw.com";,
+                    "role": "Developer"
+                }
+            ],
+            "description": "Defines the DataValue interface and some trivial 
implementations",
+            "homepage": "https://github.com/DataValues/DataValues";,
+            "keywords": [
+                "datavalues",
+                "wikibase",
+                "wikidata"
+            ],
+            "time": "2017-08-09T15:56:46+00:00"
+        },
+        {
             "name": "data-values/interfaces",
             "version": "0.2.5",
             "source": {
diff --git a/composer/autoload_classmap.php b/composer/autoload_classmap.php
index 465a98c..637cd66 100644
--- a/composer/autoload_classmap.php
+++ b/composer/autoload_classmap.php
@@ -62,6 +62,7 @@
     'Cdb\\Writer' => $vendorDir . '/wikimedia/cdb/src/Writer.php',
     'Cdb\\Writer\\DBA' => $vendorDir . '/wikimedia/cdb/src/Writer/DBA.php',
     'Cdb\\Writer\\PHP' => $vendorDir . '/wikimedia/cdb/src/Writer/PHP.php',
+    'Comparable' => $vendorDir . 
'/data-values/data-values/src/interfaces/Comparable.php',
     'Composer\\Semver\\Comparator' => $vendorDir . 
'/composer/semver/src/Comparator.php',
     'Composer\\Semver\\Constraint\\AbstractConstraint' => $vendorDir . 
'/composer/semver/src/Constraint/AbstractConstraint.php',
     'Composer\\Semver\\Constraint\\Constraint' => $vendorDir . 
'/composer/semver/src/Constraint/Constraint.php',
@@ -71,6 +72,16 @@
     'Composer\\Semver\\Semver' => $vendorDir . 
'/composer/semver/src/Semver.php',
     'Composer\\Semver\\VersionParser' => $vendorDir . 
'/composer/semver/src/VersionParser.php',
     'Console_Getopt' => $vendorDir . '/pear/console_getopt/Console/Getopt.php',
+    'Copyable' => $vendorDir . 
'/data-values/data-values/src/interfaces/Copyable.php',
+    'DataValues\\BooleanValue' => $vendorDir . 
'/data-values/data-values/src/DataValues/BooleanValue.php',
+    'DataValues\\DataValue' => $vendorDir . 
'/data-values/data-values/src/DataValues/DataValue.php',
+    'DataValues\\DataValueObject' => $vendorDir . 
'/data-values/data-values/src/DataValues/DataValueObject.php',
+    'DataValues\\IllegalValueException' => $vendorDir . 
'/data-values/data-values/src/DataValues/IllegalValueException.php',
+    'DataValues\\NumberValue' => $vendorDir . 
'/data-values/data-values/src/DataValues/NumberValue.php',
+    'DataValues\\StringValue' => $vendorDir . 
'/data-values/data-values/src/DataValues/StringValue.php',
+    'DataValues\\Tests\\DataValueTest' => $vendorDir . 
'/data-values/data-values/tests/phpunit/DataValueTest.php',
+    'DataValues\\UnDeserializableValue' => $vendorDir . 
'/data-values/data-values/src/DataValues/UnDeserializableValue.php',
+    'DataValues\\UnknownValue' => $vendorDir . 
'/data-values/data-values/src/DataValues/UnknownValue.php',
     'Deserializers\\Deserializer' => $vendorDir . 
'/serialization/serialization/src/Deserializers/Deserializer.php',
     'Deserializers\\DispatchableDeserializer' => $vendorDir . 
'/serialization/serialization/src/Deserializers/DispatchableDeserializer.php',
     'Deserializers\\DispatchingDeserializer' => $vendorDir . 
'/serialization/serialization/src/Deserializers/DispatchingDeserializer.php',
@@ -304,9 +315,11 @@
     'Firebase\\JWT\\SignatureInvalidException' => $vendorDir . 
'/firebase/php-jwt/src/SignatureInvalidException.php',
     'GDText\\Box' => $vendorDir . '/stil/gd-text/src/Box.php',
     'GDText\\Color' => $vendorDir . '/stil/gd-text/src/Color.php',
+    'Hashable' => $vendorDir . 
'/data-values/data-values/src/interfaces/Hashable.php',
     'HtmlFormatter\\HtmlFormatter' => $vendorDir . 
'/wikimedia/html-formatter/src/HtmlFormatter.php',
     'IPSet\\IPSet' => $vendorDir . '/wikimedia/ip-set/src/IPSet.php',
     'Image_XMP' => $vendorDir . 
'/james-heinrich/getid3/getid3/module.tag.xmp.php',
+    'Immutable' => $vendorDir . 
'/data-values/data-values/src/interfaces/Immutable.php',
     'JsonSchema\\Constraints\\BaseConstraint' => $vendorDir . 
'/justinrainbow/json-schema/src/JsonSchema/Constraints/BaseConstraint.php',
     'JsonSchema\\Constraints\\CollectionConstraint' => $vendorDir . 
'/justinrainbow/json-schema/src/JsonSchema/Constraints/CollectionConstraint.php',
     'JsonSchema\\Constraints\\Constraint' => $vendorDir . 
'/justinrainbow/json-schema/src/JsonSchema/Constraints/Constraint.php',
diff --git a/composer/autoload_files.php b/composer/autoload_files.php
index 804fbdf..d5b1bc3 100644
--- a/composer/autoload_files.php
+++ b/composer/autoload_files.php
@@ -14,4 +14,5 @@
     'f4c767faab43077fd89ff7cf99ffb4b8' => $vendorDir . 
'/serialization/serialization/Serialization.php',
     '3ef87127dc6892a0a78f223558a0b940' => $vendorDir . '/diff/diff/Diff.php',
     'd1715cacc3c23b16a030645514266a76' => $vendorDir . 
'/data-values/interfaces/Interfaces.php',
+    '7cb394c3af2b1ae832979b0368e0da62' => $vendorDir . 
'/data-values/data-values/DataValues.php',
 );
diff --git a/composer/autoload_namespaces.php b/composer/autoload_namespaces.php
index ed9b6b7..3dbc57d 100644
--- a/composer/autoload_namespaces.php
+++ b/composer/autoload_namespaces.php
@@ -15,6 +15,7 @@
     'Liuggio' => array($vendorDir . '/liuggio/statsd-php-client/src'),
     'Less' => array($vendorDir . '/oyejorge/less.php/lib'),
     'Kafka\\' => array($vendorDir . '/nmred/kafka-php/src'),
+    'DataValues\\' => array($vendorDir . '/data-values/data-values/src'),
     'Console' => array($vendorDir . '/pear/console_getopt'),
     '' => array($vendorDir . '/pear/pear-core-minimal/src', $vendorDir . 
'/cssjanus/cssjanus/src'),
 );
diff --git a/composer/autoload_static.php b/composer/autoload_static.php
index fa1ba32..8d992b9 100644
--- a/composer/autoload_static.php
+++ b/composer/autoload_static.php
@@ -15,6 +15,7 @@
         'f4c767faab43077fd89ff7cf99ffb4b8' => __DIR__ . '/..' . 
'/serialization/serialization/Serialization.php',
         '3ef87127dc6892a0a78f223558a0b940' => __DIR__ . '/..' . 
'/diff/diff/Diff.php',
         'd1715cacc3c23b16a030645514266a76' => __DIR__ . '/..' . 
'/data-values/interfaces/Interfaces.php',
+        '7cb394c3af2b1ae832979b0368e0da62' => __DIR__ . '/..' . 
'/data-values/data-values/DataValues.php',
     );
 
     public static $prefixLengthsPsr4 = array (
@@ -226,6 +227,13 @@
                 0 => __DIR__ . '/..' . '/nmred/kafka-php/src',
             ),
         ),
+        'D' => 
+        array (
+            'DataValues\\' => 
+            array (
+                0 => __DIR__ . '/..' . '/data-values/data-values/src',
+            ),
+        ),
         'C' => 
         array (
             'Console' => 
@@ -297,6 +305,7 @@
         'Cdb\\Writer' => __DIR__ . '/..' . '/wikimedia/cdb/src/Writer.php',
         'Cdb\\Writer\\DBA' => __DIR__ . '/..' . 
'/wikimedia/cdb/src/Writer/DBA.php',
         'Cdb\\Writer\\PHP' => __DIR__ . '/..' . 
'/wikimedia/cdb/src/Writer/PHP.php',
+        'Comparable' => __DIR__ . '/..' . 
'/data-values/data-values/src/interfaces/Comparable.php',
         'Composer\\Semver\\Comparator' => __DIR__ . '/..' . 
'/composer/semver/src/Comparator.php',
         'Composer\\Semver\\Constraint\\AbstractConstraint' => __DIR__ . '/..' 
. '/composer/semver/src/Constraint/AbstractConstraint.php',
         'Composer\\Semver\\Constraint\\Constraint' => __DIR__ . '/..' . 
'/composer/semver/src/Constraint/Constraint.php',
@@ -306,6 +315,16 @@
         'Composer\\Semver\\Semver' => __DIR__ . '/..' . 
'/composer/semver/src/Semver.php',
         'Composer\\Semver\\VersionParser' => __DIR__ . '/..' . 
'/composer/semver/src/VersionParser.php',
         'Console_Getopt' => __DIR__ . '/..' . 
'/pear/console_getopt/Console/Getopt.php',
+        'Copyable' => __DIR__ . '/..' . 
'/data-values/data-values/src/interfaces/Copyable.php',
+        'DataValues\\BooleanValue' => __DIR__ . '/..' . 
'/data-values/data-values/src/DataValues/BooleanValue.php',
+        'DataValues\\DataValue' => __DIR__ . '/..' . 
'/data-values/data-values/src/DataValues/DataValue.php',
+        'DataValues\\DataValueObject' => __DIR__ . '/..' . 
'/data-values/data-values/src/DataValues/DataValueObject.php',
+        'DataValues\\IllegalValueException' => __DIR__ . '/..' . 
'/data-values/data-values/src/DataValues/IllegalValueException.php',
+        'DataValues\\NumberValue' => __DIR__ . '/..' . 
'/data-values/data-values/src/DataValues/NumberValue.php',
+        'DataValues\\StringValue' => __DIR__ . '/..' . 
'/data-values/data-values/src/DataValues/StringValue.php',
+        'DataValues\\Tests\\DataValueTest' => __DIR__ . '/..' . 
'/data-values/data-values/tests/phpunit/DataValueTest.php',
+        'DataValues\\UnDeserializableValue' => __DIR__ . '/..' . 
'/data-values/data-values/src/DataValues/UnDeserializableValue.php',
+        'DataValues\\UnknownValue' => __DIR__ . '/..' . 
'/data-values/data-values/src/DataValues/UnknownValue.php',
         'Deserializers\\Deserializer' => __DIR__ . '/..' . 
'/serialization/serialization/src/Deserializers/Deserializer.php',
         'Deserializers\\DispatchableDeserializer' => __DIR__ . '/..' . 
'/serialization/serialization/src/Deserializers/DispatchableDeserializer.php',
         'Deserializers\\DispatchingDeserializer' => __DIR__ . '/..' . 
'/serialization/serialization/src/Deserializers/DispatchingDeserializer.php',
@@ -539,9 +558,11 @@
         'Firebase\\JWT\\SignatureInvalidException' => __DIR__ . '/..' . 
'/firebase/php-jwt/src/SignatureInvalidException.php',
         'GDText\\Box' => __DIR__ . '/..' . '/stil/gd-text/src/Box.php',
         'GDText\\Color' => __DIR__ . '/..' . '/stil/gd-text/src/Color.php',
+        'Hashable' => __DIR__ . '/..' . 
'/data-values/data-values/src/interfaces/Hashable.php',
         'HtmlFormatter\\HtmlFormatter' => __DIR__ . '/..' . 
'/wikimedia/html-formatter/src/HtmlFormatter.php',
         'IPSet\\IPSet' => __DIR__ . '/..' . '/wikimedia/ip-set/src/IPSet.php',
         'Image_XMP' => __DIR__ . '/..' . 
'/james-heinrich/getid3/getid3/module.tag.xmp.php',
+        'Immutable' => __DIR__ . '/..' . 
'/data-values/data-values/src/interfaces/Immutable.php',
         'JsonSchema\\Constraints\\BaseConstraint' => __DIR__ . '/..' . 
'/justinrainbow/json-schema/src/JsonSchema/Constraints/BaseConstraint.php',
         'JsonSchema\\Constraints\\CollectionConstraint' => __DIR__ . '/..' . 
'/justinrainbow/json-schema/src/JsonSchema/Constraints/CollectionConstraint.php',
         'JsonSchema\\Constraints\\Constraint' => __DIR__ . '/..' . 
'/justinrainbow/json-schema/src/JsonSchema/Constraints/Constraint.php',
diff --git a/composer/installed.json b/composer/installed.json
index 8bcd686..0e46ace 100644
--- a/composer/installed.json
+++ b/composer/installed.json
@@ -2583,5 +2583,66 @@
             "valuevalidators",
             "wikidata"
         ]
+    },
+    {
+        "name": "data-values/data-values",
+        "version": "1.1.0",
+        "version_normalized": "1.1.0.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/DataValues/DataValues.git";,
+            "reference": "c855a1c58b52030b40d8568094f07e24a88e9fd2"
+        },
+        "dist": {
+            "type": "zip",
+            "url": 
"https://api.github.com/repos/DataValues/DataValues/zipball/c855a1c58b52030b40d8568094f07e24a88e9fd2";,
+            "reference": "c855a1c58b52030b40d8568094f07e24a88e9fd2",
+            "shasum": ""
+        },
+        "require": {
+            "php": ">=5.3.0"
+        },
+        "replace": {
+            "mediawiki/data-values": "*"
+        },
+        "time": "2017-08-09T15:56:46+00:00",
+        "type": "library",
+        "extra": {
+            "branch-alias": {
+                "dev-master": "1.0.x-dev"
+            }
+        },
+        "installation-source": "dist",
+        "autoload": {
+            "files": [
+                "DataValues.php"
+            ],
+            "classmap": [
+                "src/interfaces",
+                "tests/phpunit/DataValueTest.php"
+            ],
+            "psr-0": {
+                "DataValues\\": "src/"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/";,
+        "license": [
+            "GPL-2.0+"
+        ],
+        "authors": [
+            {
+                "name": "Jeroen De Dauw",
+                "email": "jeroended...@gmail.com",
+                "homepage": "http://jeroendedauw.com";,
+                "role": "Developer"
+            }
+        ],
+        "description": "Defines the DataValue interface and some trivial 
implementations",
+        "homepage": "https://github.com/DataValues/DataValues";,
+        "keywords": [
+            "datavalues",
+            "wikibase",
+            "wikidata"
+        ]
     }
 ]
diff --git a/data-values/data-values/.gitignore 
b/data-values/data-values/.gitignore
new file mode 100644
index 0000000..577795c
--- /dev/null
+++ b/data-values/data-values/.gitignore
@@ -0,0 +1,12 @@
+*~
+*.kate-swp
+*.swp
+
+!.*
+
+.idea/
+build/
+vendor/
+
+composer.phar
+composer.lock
\ No newline at end of file
diff --git a/data-values/data-values/.scrutinizer.yml 
b/data-values/data-values/.scrutinizer.yml
new file mode 100644
index 0000000..d6c0c6b
--- /dev/null
+++ b/data-values/data-values/.scrutinizer.yml
@@ -0,0 +1,13 @@
+build: true
+inherit: true
+
+tools:
+    php_code_coverage: true
+    php_code_sniffer: true
+    php_cpd: true
+    php_cs_fixer: true
+    php_loc: true
+    php_mess_detector: true
+    php_pdepend: true
+    php_analyzer: true
+    sensiolabs_security_checker: true
diff --git a/data-values/data-values/.travis.yml 
b/data-values/data-values/.travis.yml
new file mode 100644
index 0000000..92d0962
--- /dev/null
+++ b/data-values/data-values/.travis.yml
@@ -0,0 +1,14 @@
+language: php
+
+php:
+  - 5.3
+  - 5.4
+  - 5.5
+  - 5.6
+  - hhvm
+
+before_script:
+  - composer install --prefer-source
+
+script:
+  - phpunit
diff --git a/data-values/data-values/COPYING b/data-values/data-values/COPYING
new file mode 100644
index 0000000..ebba08a
--- /dev/null
+++ b/data-values/data-values/COPYING
@@ -0,0 +1,347 @@
+The license text below "----" applies to all files within this distribution, 
other
+than those that are in a directory which contains files named "LICENSE" or
+"COPYING", or a subdirectory thereof. For those files, the license text 
contained in
+said file overrides any license information contained in directories of 
smaller depth.
+Alternative licenses are typically used for software that is provided by 
external
+parties, and merely packaged with this software for convenience.
+----
+
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
+source code.  And you must show them these terms so they know their
+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language.  (Hereinafter, translation is included without limitation in
+the term "modification".)  Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
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+
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+
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+
+This section is intended to make thoroughly clear what is believed to
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+
+  8. If the distribution and/or use of the Program is restricted in
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+
+  9. The Free Software Foundation may publish revised and/or new versions
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+
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+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
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+Foundation.
+
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+
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+
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+POSSIBILITY OF SUCH DAMAGES.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
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+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
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+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.
diff --git a/data-values/data-values/DataValues.php 
b/data-values/data-values/DataValues.php
new file mode 100644
index 0000000..274633e
--- /dev/null
+++ b/data-values/data-values/DataValues.php
@@ -0,0 +1,20 @@
+<?php
+
+/**
+ * Entry point for the DataValues library.
+ *
+ * @licence GNU GPL v2+
+ * @author Jeroen De Dauw < jeroended...@gmail.com >
+ */
+
+if ( defined( 'DataValues_VERSION' ) ) {
+       // Do not initialize more than once.
+       return 1;
+}
+
+define( 'DATAVALUES_VERSION', '1.1.0' );
+
+/**
+ * @deprecated
+ */
+define( 'DataValues_VERSION', DATAVALUES_VERSION );
diff --git a/data-values/data-values/README.md 
b/data-values/data-values/README.md
new file mode 100644
index 0000000..92fe31e
--- /dev/null
+++ b/data-values/data-values/README.md
@@ -0,0 +1,97 @@
+# DataValues
+
+DataValues is a small PHP library that aims to be a common foundation for 
representing "simple"
+values. Values such as numbers, geographical coordinates, strings and times.
+
+It is part of the [DataValues set of libraries](https://github.com/DataValues).
+
+[![Build 
Status](https://secure.travis-ci.org/DataValues/DataValues.png?branch=master)](http://travis-ci.org/DataValues/DataValues)
+[![Code 
Coverage](https://scrutinizer-ci.com/g/DataValues/DataValues/badges/coverage.png?s=56a1ea89df94c6d9b4223ba584d0d4556e1984ef)](https://scrutinizer-ci.com/g/DataValues/DataValues/)
+[![Scrutinizer Quality 
Score](https://scrutinizer-ci.com/g/DataValues/DataValues/badges/quality-score.png?s=ba9364790e6b521277a3829ffb91e2c2e1b68c3c)](https://scrutinizer-ci.com/g/DataValues/DataValues/)
+
+On [Packagist](https://packagist.org/packages/data-values/data-values):
+[![Latest Stable 
Version](https://poser.pugx.org/data-values/data-values/version.png)](https://packagist.org/packages/data-values/data-values)
+[![Download 
count](https://poser.pugx.org/data-values/data-values/d/total.png)](https://packagist.org/packages/data-values/data-values)
+
+## Requirements
+
+* PHP 5.3 or later
+
+## Installation
+
+You can use [Composer](http://getcomposer.org/) to download and install
+this package as well as its dependencies. Alternatively you can simply clone
+the git repository and take care of loading yourself.
+
+### Composer
+
+To add this package as a local, per-project dependency to your project, simply 
add a
+dependency on `data-values/data-values` to your project's `composer.json` file.
+Here is a minimal example of a `composer.json` file that just defines a 
dependency on
+DataValues 1.0:
+
+    {
+        "require": {
+            "data-values/data-values": "1.0.*"
+        }
+    }
+
+### Manual
+
+Get the DataValues code, either via git, or some other means. Also get all 
dependencies.
+You can find a list of the dependencies in the "require" section of the 
composer.json file.
+Load all dependencies and the load the DataValues library by including its 
entry point:
+DataValues.php.
+
+## Tests
+
+This library comes with a set up PHPUnit tests that cover all non-trivial 
code. You can run these
+tests using the PHPUnit configuration file found in the root directory. The 
tests can also be run
+via TravisCI, as a TravisCI configuration file is also provided in the root 
directory.
+
+## Authors
+
+DataValues has been written primarily by [Jeroen De 
Dauw](https://www.mediawiki.org/wiki/User:Jeroen_De_Dauw),
+in part as [Wikimedia Germany](https://wikimedia.de) employee for the 
[Wikidata project](https://wikidata.org/).
+
+Contributions where also made by [several other awesome people]
+(https://www.ohloh.net/p/datavalues/contributors).
+
+## Release notes
+
+### 1.1.0 (2017-08-09)
+
+* Remove MediaWiki integration
+
+### 1.0 (2014-09-26)
+
+* The CI now ensures compatibility with PHP 5.6 and HHVM
+* A lot of type hints where improved
+* Protected methods and fields where changed to private
+* The test bootstrap no longer executes `composer update`
+* The test bootstrap now sets PHP strict mode
+* The contract of the `Hashable::getHash` method was updated
+* The MediaWiki internationalization support has been migrated to the JSON 
based version
+
+### 0.1.1 (2013-11-22)
+
+* Removed support for running the tests via the MediaWiki test runner.
+* The test bootstrapping file now automatically does a composer install.
+* Removed custom autoloader in favour of defining autoloading in composer.json.
+
+### 0.1 (2013-11-16)
+
+Initial release with these features:
+
+* DataValue interface
+       * BooleanValue implementation
+       * NumberValue implementation
+       * StringValue implementation
+       * UnDeserializableValue implementation
+       * UnknownValue implementation
+* Common interface definitions: Comparable, Copyable, Hashable, Immutable
+
+## Links
+
+* [DataValues on 
Packagist](https://packagist.org/packages/data-values/data-values)
+* [DataValues on Ohloh](https://www.ohloh.net/p/datavalues)
diff --git a/data-values/data-values/composer.json 
b/data-values/data-values/composer.json
new file mode 100644
index 0000000..31cf79e
--- /dev/null
+++ b/data-values/data-values/composer.json
@@ -0,0 +1,43 @@
+{
+       "name": "data-values/data-values",
+       "type": "library",
+       "description": "Defines the DataValue interface and some trivial 
implementations",
+       "keywords": [
+               "datavalues",
+               "wikibase",
+               "wikidata"
+       ],
+       "homepage": "https://github.com/DataValues/DataValues";,
+       "license": "GPL-2.0+",
+       "authors": [
+               {
+                       "name": "Jeroen De Dauw",
+                       "email": "jeroended...@gmail.com",
+                       "homepage": "http://jeroendedauw.com";,
+                       "role": "Developer"
+               }
+       ],
+       "require": {
+               "php": ">=5.3.0"
+       },
+       "replace": {
+               "mediawiki/data-values": "*"
+       },
+       "autoload": {
+               "files" : [
+                       "DataValues.php"
+               ],
+               "classmap": [
+                       "src/interfaces",
+                       "tests/phpunit/DataValueTest.php"
+               ],
+               "psr-0": {
+                       "DataValues\\": "src/"
+               }
+       },
+       "extra": {
+               "branch-alias": {
+                       "dev-master": "1.0.x-dev"
+               }
+       }
+}
diff --git a/data-values/data-values/phpunit.xml.dist 
b/data-values/data-values/phpunit.xml.dist
new file mode 100644
index 0000000..4321d28
--- /dev/null
+++ b/data-values/data-values/phpunit.xml.dist
@@ -0,0 +1,24 @@
+<phpunit backupGlobals="false"
+         backupStaticAttributes="false"
+         bootstrap="tests/bootstrap.php"
+         cacheTokens="false"
+         colors="true"
+         convertErrorsToExceptions="true"
+         convertNoticesToExceptions="true"
+         convertWarningsToExceptions="true"
+         stopOnError="false"
+         stopOnFailure="false"
+         stopOnIncomplete="false"
+         stopOnSkipped="false"
+         verbose="true">
+    <testsuites>
+        <testsuite name="DataValues">
+            <directory>tests/phpunit</directory>
+        </testsuite>
+    </testsuites>
+    <filter>
+        <whitelist addUncoveredFilesFromWhitelist="true">
+            <directory suffix=".php">src</directory>
+        </whitelist>
+    </filter>
+</phpunit>
diff --git a/data-values/data-values/src/DataValues/BooleanValue.php 
b/data-values/data-values/src/DataValues/BooleanValue.php
new file mode 100644
index 0000000..8250a96
--- /dev/null
+++ b/data-values/data-values/src/DataValues/BooleanValue.php
@@ -0,0 +1,98 @@
+<?php
+
+namespace DataValues;
+
+/**
+ * Class representing a boolean value.
+ *
+ * @since 0.1
+ *
+ * @licence GNU GPL v2+
+ * @author Jeroen De Dauw < jeroended...@gmail.com >
+ */
+class BooleanValue extends DataValueObject {
+
+       private $value;
+
+       /**
+        * @since 0.1
+        *
+        * @param bool $value
+        *
+        * @throws IllegalValueException
+        */
+       public function __construct( $value ) {
+               if ( !is_bool( $value ) ) {
+                       throw new IllegalValueException( 'Can only construct 
BooleanValue from booleans' );
+               }
+
+               $this->value = $value;
+       }
+
+       /**
+        * @see Serializable::serialize
+        *
+        * @since 0.1
+        *
+        * @return string '0' for false, '1' for true.
+        */
+       public function serialize() {
+               return $this->value ? '1' : '0';
+       }
+
+       /**
+        * @see Serializable::unserialize
+        *
+        * @since 0.1
+        *
+        * @param string $value '0' for false, '1' for true.
+        *
+        * @return BooleanValue
+        */
+       public function unserialize( $value ) {
+               $this->value = $value === '1';
+       }
+
+       /**
+        * @see DataValue::getType
+        *
+        * @return string
+        */
+       public static function getType() {
+               return 'boolean';
+       }
+
+       /**
+        * @see DataValue::getSortKey
+        *
+        * @return int 0 for false, 1 for true.
+        */
+       public function getSortKey() {
+               return $this->value ? 1 : 0;
+       }
+
+       /**
+        * Returns the boolean.
+        * @see DataValue::getValue
+        *
+        * @return bool
+        */
+       public function getValue() {
+               return $this->value;
+       }
+
+       /**
+        * Constructs a new instance of the DataValue from the provided data.
+        * This can round-trip with @see getArrayValue
+        *
+        * @since 0.1
+        *
+        * @param bool $data
+        *
+        * @return BooleanValue
+        */
+       public static function newFromArray( $data ) {
+               return new static( $data );
+       }
+
+}
diff --git a/data-values/data-values/src/DataValues/DataValue.php 
b/data-values/data-values/src/DataValues/DataValue.php
new file mode 100644
index 0000000..3f6a812
--- /dev/null
+++ b/data-values/data-values/src/DataValues/DataValue.php
@@ -0,0 +1,82 @@
+<?php
+
+namespace DataValues;
+
+/**
+ * Interface for objects that represent a single data value.
+ *
+ * @since 0.1
+ *
+ * @licence GNU GPL v2+
+ * @author Jeroen De Dauw < jeroended...@gmail.com >
+ */
+interface DataValue extends \Hashable, \Comparable, \Serializable, \Immutable, 
\Copyable {
+
+       /**
+        * Returns the identifier of the datavalues type.
+        *
+        * This is not to be confused with the DataType provided by the 
DataTypes extension.
+        *
+        * @since 0.1
+        *
+        * @return string
+        */
+       public static function getType();
+
+       /**
+        * Returns a key that can be used to sort the data value with.
+        * It can be either numeric or a string.
+        *
+        * @since 0.1
+        *
+        * @return string|float|int
+        */
+       public function getSortKey();
+
+       /**
+        * Returns the value contained by the DataValue. If this value is not 
simple and
+        * does not have it's own type that represents it, the DataValue itself 
will be returned.
+        * In essence, this method returns the "simplest" representation of the 
value.
+        *
+        * Example:
+        * - NumberDataValue returns a float or integer
+        * - MediaWikiTitleValue returns a Title object
+        * - QuantityValue returns itself
+        *
+        * @since 0.1
+        *
+        * @return mixed
+        */
+       public function getValue();
+
+       /**
+        * Returns the value in array form.
+        *
+        * For simple values (ie a string) the return value will be equal to 
that of @see getValue.
+        *
+        * Complex DataValues can provide a nicer implementation though, for 
instance a
+        * geographical coordinate value could provide an array with keys 
latitude,
+        * longitude and altitude, each pointing to a simple float value.
+        *
+        * @since 0.1
+        *
+        * @return mixed
+        */
+       public function getArrayValue();
+
+       /**
+        * Returns the whole DataValue in array form.
+        *
+        * The array contains:
+        * - value: mixed, same as the result of @see getArrayValue
+        * - type: string, same as the result of @see getType
+        *
+        * This is sufficient for unserialization in a factory.
+        *
+        * @since 0.1
+        *
+        * @return array
+        */
+       public function toArray();
+
+}
diff --git a/data-values/data-values/src/DataValues/DataValueObject.php 
b/data-values/data-values/src/DataValues/DataValueObject.php
new file mode 100644
index 0000000..97acb83
--- /dev/null
+++ b/data-values/data-values/src/DataValues/DataValueObject.php
@@ -0,0 +1,98 @@
+<?php
+
+namespace DataValues;
+
+/**
+ * Base for objects that represent a single data value.
+ *
+ * @since 0.1
+ *
+ * @licence GNU GPL v2+
+ * @author Jeroen De Dauw < jeroended...@gmail.com >
+ */
+abstract class DataValueObject implements DataValue {
+
+       /**
+        * @see Hashable::getHash
+        *
+        * @since 0.1
+        *
+        * @return string
+        */
+       public function getHash() {
+               return md5( serialize( $this ) );
+       }
+
+       /**
+        * @see Comparable::equals
+        *
+        * @since 0.1
+        *
+        * @param mixed $value
+        *
+        * @return boolean
+        */
+       public function equals( $value ) {
+               return $value === $this ||
+                       ( is_object( $value ) && get_class( $value ) == 
get_called_class() && serialize( $value ) === serialize( $this ) );
+       }
+
+       /**
+        * @see Copyable::getCopy
+        *
+        * @since 0.1
+        *
+        * @return DataValue
+        */
+       public function getCopy() {
+               return unserialize( serialize( $this ) );
+       }
+
+       /**
+        * @see DataValue::getArrayValue
+        *
+        * @since 0.1
+        *
+        * @return mixed
+        */
+       public function getArrayValue() {
+               return $this->getValue();
+       }
+
+       /**
+        * @see DataValue::toArray
+        *
+        * @since 0.1
+        *
+        * @return array
+        */
+       public function toArray() {
+               return array(
+                       'value' => $this->getArrayValue(),
+                       'type' => $this->getType(),
+               );
+       }
+
+       /**
+        * Checks that $data is an array and contains the given fields.
+        *
+        * @param mixed $data
+        * @param array $fields
+        *
+        * @todo: this should be removed once we got rid of all the static 
newFromArray() methods.
+        *
+        * @throws IllegalValueException
+        */
+       protected static function requireArrayFields( $data, array $fields ) {
+               if ( !is_array( $data ) ) {
+                       throw new IllegalValueException( "array expected" );
+               }
+
+               foreach ( $fields as $field ) {
+                       if ( !array_key_exists( $field, $data ) ) {
+                               throw new IllegalValueException( "$field field 
required" );
+                       }
+               }
+       }
+
+}
diff --git a/data-values/data-values/src/DataValues/IllegalValueException.php 
b/data-values/data-values/src/DataValues/IllegalValueException.php
new file mode 100644
index 0000000..2107958
--- /dev/null
+++ b/data-values/data-values/src/DataValues/IllegalValueException.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace DataValues;
+
+use InvalidArgumentException;
+
+class IllegalValueException extends InvalidArgumentException {
+
+}
\ No newline at end of file
diff --git a/data-values/data-values/src/DataValues/NumberValue.php 
b/data-values/data-values/src/DataValues/NumberValue.php
new file mode 100644
index 0000000..c5c5b12
--- /dev/null
+++ b/data-values/data-values/src/DataValues/NumberValue.php
@@ -0,0 +1,98 @@
+<?php
+
+namespace DataValues;
+
+/**
+ * Class representing a simple numeric value.
+ *
+ * More complex numeric values that have associated info such as
+ * unit and accuracy can be represented with a @see QuantityValue.
+ *
+ * @since 0.1
+ *
+ * @licence GNU GPL v2+
+ * @author Jeroen De Dauw < jeroended...@gmail.com >
+ */
+class NumberValue extends DataValueObject {
+
+       /**
+        * @var int|float
+        */
+       private $value;
+
+       /**
+        * @param int|float $value
+        *
+        * @throws IllegalValueException
+        */
+       public function __construct( $value ) {
+               if ( !is_int( $value ) && !is_float( $value ) ) {
+                       throw new IllegalValueException( 'Can only construct 
NumberValue from floats or integers.' );
+               }
+
+               $this->value = $value;
+       }
+
+       /**
+        * @see Serializable::serialize
+        *
+        * @return string
+        */
+       public function serialize() {
+               return serialize( $this->value );
+       }
+
+       /**
+        * @see Serializable::unserialize
+        *
+        * @param string $value
+        *
+        * @return NumberValue
+        */
+       public function unserialize( $value ) {
+               $this->__construct( unserialize( $value ) );
+       }
+
+       /**
+        * @see DataValue::getType
+        *
+        * @return string
+        */
+       public static function getType() {
+               return 'number';
+       }
+
+       /**
+        * @see DataValue::getSortKey
+        *
+        * @return int|float
+        */
+       public function getSortKey() {
+               return $this->value;
+       }
+
+       /**
+        * Returns the number.
+        * @see DataValue::getValue
+        *
+        * @return int|float
+        */
+       public function getValue() {
+               return $this->value;
+       }
+
+       /**
+        * Constructs a new instance of the DataValue from the provided data.
+        * This can round-trip with @see getArrayValue
+        *
+        * @since 0.1
+        *
+        * @param int|float $data
+        *
+        * @return NumberValue
+        */
+       public static function newFromArray( $data ) {
+               return new static( $data );
+       }
+
+}
diff --git a/data-values/data-values/src/DataValues/StringValue.php 
b/data-values/data-values/src/DataValues/StringValue.php
new file mode 100644
index 0000000..0c5d138
--- /dev/null
+++ b/data-values/data-values/src/DataValues/StringValue.php
@@ -0,0 +1,105 @@
+<?php
+
+namespace DataValues;
+
+/**
+ * Class representing a string value.
+ *
+ * @since 0.1
+ *
+ * @licence GNU GPL v2+
+ * @author Jeroen De Dauw < jeroended...@gmail.com >
+ */
+class StringValue extends DataValueObject {
+
+       /**
+        * @var string
+        */
+       private $value;
+
+       /**
+        * @param string $value
+        *
+        * @throws IllegalValueException
+        */
+       public function __construct( $value ) {
+               if ( !is_string( $value ) ) {
+                       throw new IllegalValueException( 'Can only construct 
StringValue from strings' );
+               }
+
+               $this->value = $value;
+       }
+
+       /**
+        * @see Serializable::serialize
+        *
+        * @since 0.1
+        *
+        * @return string
+        */
+       public function serialize() {
+               return $this->value;
+       }
+
+       /**
+        * @see Serializable::unserialize
+        *
+        * @since 0.1
+        *
+        * @param string $value
+        *
+        * @return StringValue
+        */
+       public function unserialize( $value ) {
+               $this->__construct( $value );
+       }
+
+       /**
+        * @see DataValue::getType
+        *
+        * @since 0.1
+        *
+        * @return string
+        */
+       public static function getType() {
+               return 'string';
+       }
+
+       /**
+        * @see DataValue::getSortKey
+        *
+        * @since 0.1
+        *
+        * @return string
+        */
+       public function getSortKey() {
+               return $this->value;
+       }
+
+       /**
+        * Returns the string.
+        * @see DataValue::getValue
+        *
+        * @since 0.1
+        *
+        * @return string
+        */
+       public function getValue() {
+               return $this->value;
+       }
+
+       /**
+        * Constructs a new instance of the DataValue from the provided data.
+        * This can round-trip with @see getArrayValue
+        *
+        * @since 0.1
+        *
+        * @param string $data
+        *
+        * @return StringValue
+        */
+       public static function newFromArray( $data ) {
+               return new static( $data );
+       }
+
+}
diff --git a/data-values/data-values/src/DataValues/UnDeserializableValue.php 
b/data-values/data-values/src/DataValues/UnDeserializableValue.php
new file mode 100644
index 0000000..69fcccc
--- /dev/null
+++ b/data-values/data-values/src/DataValues/UnDeserializableValue.php
@@ -0,0 +1,202 @@
+<?php
+
+namespace DataValues;
+
+use InvalidArgumentException;
+
+/**
+ * Class representing a value that could not be unserialized for some reason.
+ * It contains the raw native data structure representing the value,
+ * as well as the originally intended value type and an error message.
+ *
+ * @since 0.1
+ *
+ * @licence GNU GPL v2+
+ * @author Daniel Kinzler
+ */
+class UnDeserializableValue extends DataValueObject {
+
+       /**
+        * @var mixed
+        */
+       private $data;
+
+       /**
+        * @var string
+        */
+       private $type;
+
+       /**
+        * @var string
+        */
+       private $error;
+
+       /**
+        * @since 0.1
+        *
+        * @param string $type The originally intended type
+        * @param mixed $data The raw data structure
+        * @param string $error The error that occurred when processing the 
original data structure.
+        *
+        * @throws InvalidArgumentException
+        * @internal param mixed $value
+        */
+       public function __construct( $data, $type, $error ) {
+               if ( !is_null( $type ) && !is_string( $type ) ) {
+                       throw new InvalidArgumentException( '$type must be 
string or null' );
+               }
+
+               if ( is_object( $data ) ) {
+                       throw new InvalidArgumentException( '$data must not be 
an object' );
+               }
+
+               if ( !is_string( $error ) ) {
+                       throw new InvalidArgumentException( '$error must be a 
string' );
+               }
+
+               $this->data = $data;
+               $this->type = $type;
+               $this->error = $error;
+       }
+
+       /**
+        * @see Serializable::serialize
+        *
+        * @note: The serialization includes the intended type and the error 
message
+        *        along with the original data.
+        *
+        * @since 0.1
+        *
+        * @return string
+        */
+       public function serialize() {
+               return serialize( array( $this->type, $this->data, $this->error 
) );
+       }
+
+       /**
+        * @see Serializable::unserialize
+        *
+        * @since 0.1
+        *
+        * @param string $value
+        *
+        * @return StringValue
+        */
+       public function unserialize( $value ) {
+               list( $type, $data, $error ) = unserialize( $value );
+               $this->__construct( $data, $type, $error );
+       }
+
+       /**
+        * @see DataValue::getArrayValue
+        *
+        * @note: this returns the original raw data structure.
+        *
+        * @since 0.1
+        *
+        * @return mixed
+        */
+       public function getArrayValue() {
+               return $this->data;
+       }
+
+       /**
+        * @see DataValue::toArray
+        *
+        * @note: This uses the originally intended type. This way, the native 
representation
+        *        does not model a UnDeserializableValue, but the originally 
intended type of value.
+        *        This allows for round trip compatibility with unknown types 
of data.
+        *
+        * @since 0.1
+        *
+        * @return array
+        */
+       public function toArray() {
+               return array(
+                       'value' => $this->getArrayValue(),
+                       'type' => $this->getTargetType(),
+                       'error' => $this->getReason(),
+               );
+       }
+
+       /**
+        * @see DataValue::getType
+        *
+        * @since 0.1
+        *
+        * @return string
+        */
+       public static function getType() {
+               return 'bad';
+       }
+
+       /**
+        * Returns the value type that was intended for the bad data structure.
+        *
+        * @since 0.1
+        *
+        * @return string
+        */
+       public function getTargetType() {
+               return $this->type;
+       }
+
+       /**
+        * Returns a string describing the issue that caused the failure
+        * represented by this UnDeserializableValue object.
+        *
+        * @since 0.1
+        *
+        * @return string
+        */
+       public function getReason() {
+               return $this->error;
+       }
+
+       /**
+        * @see DataValue::getSortKey
+        *
+        * @since 0.1
+        *
+        * @return int Always 0 in this implementation.
+        */
+       public function getSortKey() {
+               return 0;
+       }
+
+       /**
+        * Returns the raw data structure.
+        * @see DataValue::getValue
+        *
+        * @since 0.1
+        *
+        * @return mixed
+        */
+       public function getValue() {
+               return $this->data;
+       }
+
+       /**
+        * @see Comparable::equals
+        *
+        * @since 0.1
+        *
+        * @param mixed $value
+        *
+        * @return bool
+        */
+       public function equals( $value ) {
+               if ( $value === $this ) {
+                       return true;
+               }
+
+               if ( !( $value instanceof self ) ) {
+                       return false;
+               }
+
+               return $value->data === $this->data
+                       && $value->type === $this->type
+                       && $value->error === $this->error;
+       }
+
+}
diff --git a/data-values/data-values/src/DataValues/UnknownValue.php 
b/data-values/data-values/src/DataValues/UnknownValue.php
new file mode 100644
index 0000000..2f9243d
--- /dev/null
+++ b/data-values/data-values/src/DataValues/UnknownValue.php
@@ -0,0 +1,114 @@
+<?php
+
+namespace DataValues;
+
+/**
+ * Class representing a value of unknown type.
+ * This is in essence a null-wrapper, useful for instance for null-parsers.
+ *
+ * @since 0.1
+ *
+ * @licence GNU GPL v2+
+ * @author Jeroen De Dauw < jeroended...@gmail.com >
+ */
+class UnknownValue extends DataValueObject {
+
+       /**
+        * @var mixed
+        */
+       private $value;
+
+       /**
+        * @param mixed $value
+        */
+       public function __construct( $value ) {
+               $this->value = $value;
+       }
+
+       /**
+        * @see Serializable::serialize
+        *
+        * @since 0.1
+        *
+        * @return string
+        */
+       public function serialize() {
+               return serialize( $this->value );
+       }
+
+       /**
+        * @see Serializable::unserialize
+        *
+        * @since 0.1
+        *
+        * @param string $value
+        *
+        * @return StringValue
+        */
+       public function unserialize( $value ) {
+               $this->__construct( unserialize( $value ) );
+       }
+
+       /**
+        * @see DataValue::getType
+        *
+        * @since 0.1
+        *
+        * @return string
+        */
+       public static function getType() {
+               return 'unknown';
+       }
+
+       /**
+        * @see DataValue::getSortKey
+        *
+        * @since 0.1
+        *
+        * @return int Always 0 in this implementation.
+        */
+       public function getSortKey() {
+               return 0;
+       }
+
+       /**
+        * Returns the value.
+        * @see DataValue::getValue
+        *
+        * @since 0.1
+        *
+        * @return mixed
+        */
+       public function getValue() {
+               return $this->value;
+       }
+
+       /**
+        * @see Comparable::equals
+        *
+        * @since 0.1
+        *
+        * @param mixed $value
+        *
+        * @return boolean
+        */
+       public function equals( $value ) {
+               return $value === $this ||
+                       ( is_object( $value ) && get_class( $value ) == 
get_called_class() && $value->getValue() === $this->getValue() );
+       }
+
+       /**
+        * Constructs a new instance of the DataValue from the provided data.
+        * This can round-trip with @see getArrayValue
+        *
+        * @since 0.1
+        *
+        * @param mixed $data
+        *
+        * @return UnknownValue
+        */
+       public static function newFromArray( $data ) {
+               return new static( $data );
+       }
+
+}
diff --git a/data-values/data-values/src/interfaces/Comparable.php 
b/data-values/data-values/src/interfaces/Comparable.php
new file mode 100644
index 0000000..c3a048a
--- /dev/null
+++ b/data-values/data-values/src/interfaces/Comparable.php
@@ -0,0 +1,24 @@
+<?php
+
+/**
+ * Interface for objects that have an equals method.
+ *
+ * @since 0.1
+ *
+ * @licence GNU GPL v2+
+ * @author Jeroen De Dauw < jeroended...@gmail.com >
+ */
+interface Comparable {
+
+       /**
+        * Returns if the provided value is equal to the object or not.
+        *
+        * @since 0.1
+        *
+        * @param mixed $target
+        *
+        * @return boolean
+        */
+       public function equals( $target );
+
+}
\ No newline at end of file
diff --git a/data-values/data-values/src/interfaces/Copyable.php 
b/data-values/data-values/src/interfaces/Copyable.php
new file mode 100644
index 0000000..5d86a47
--- /dev/null
+++ b/data-values/data-values/src/interfaces/Copyable.php
@@ -0,0 +1,22 @@
+<?php
+
+/**
+ * Interface for objects that have a getCopy method.
+ *
+ * @since 0.1
+ *
+ * @licence GNU GPL v2+
+ * @author Jeroen De Dauw < jeroended...@gmail.com >
+ */
+interface Copyable {
+
+       /**
+        * Returns a deep copy of the object.
+        *
+        * @since 0.1
+        *
+        * @return Copyable
+        */
+       public function getCopy();
+
+}
diff --git a/data-values/data-values/src/interfaces/Hashable.php 
b/data-values/data-values/src/interfaces/Hashable.php
new file mode 100644
index 0000000..20fb5bf
--- /dev/null
+++ b/data-values/data-values/src/interfaces/Hashable.php
@@ -0,0 +1,24 @@
+<?php
+
+/**
+ * Interface for objects that have a getHash method.
+ *
+ * @since 0.1
+ *
+ * @licence GNU GPL v2+
+ * @author Jeroen De Dauw < jeroended...@gmail.com >
+ */
+interface Hashable {
+
+       /**
+        * Returns a string hash based on the value of the object. The string 
must not exceed
+        * 255 bytes (255 ASCII characters or less when it contains Unicode 
characters that
+        * need to be UTF-8 encoded) to allow using indexes on all database 
systems.
+        *
+        * @since 0.1
+        *
+        * @return string
+        */
+       public function getHash();
+
+}
diff --git a/data-values/data-values/src/interfaces/Immutable.php 
b/data-values/data-values/src/interfaces/Immutable.php
new file mode 100644
index 0000000..c85b24f
--- /dev/null
+++ b/data-values/data-values/src/interfaces/Immutable.php
@@ -0,0 +1,12 @@
+<?php
+
+/**
+ * Interface for immutable objects.
+ * The interface does not specify any methods and merely acts as a flag.
+ *
+ * @since 0.1
+ *
+ * @licence GNU GPL v2+
+ * @author Jeroen De Dauw < jeroended...@gmail.com >
+ */
+interface Immutable {}
diff --git a/data-values/data-values/tests/bootstrap.php 
b/data-values/data-values/tests/bootstrap.php
new file mode 100644
index 0000000..2b1b24a
--- /dev/null
+++ b/data-values/data-values/tests/bootstrap.php
@@ -0,0 +1,14 @@
+<?php
+
+if ( PHP_SAPI !== 'cli' ) {
+       die( 'Not an entry point' );
+}
+
+error_reporting( E_ALL | E_STRICT );
+ini_set( 'display_errors', 1 );
+
+if ( !is_readable( __DIR__ . '/../vendor/autoload.php' ) ) {
+       die( 'You need to install this package with Composer before you can run 
the tests' );
+}
+
+$autoLoader = require_once( __DIR__ . '/../vendor/autoload.php' );
diff --git a/data-values/data-values/tests/phpunit/BooleanValueTest.php 
b/data-values/data-values/tests/phpunit/BooleanValueTest.php
new file mode 100644
index 0000000..955b7ff
--- /dev/null
+++ b/data-values/data-values/tests/phpunit/BooleanValueTest.php
@@ -0,0 +1,61 @@
+<?php
+
+namespace DataValues\Tests;
+
+use DataValues\BooleanValue;
+
+/**
+ * @covers DataValues\BooleanValue
+ *
+ * @group DataValue
+ * @group DataValueExtensions
+ *
+ * @licence GNU GPL v2+
+ * @author Jeroen De Dauw < jeroended...@gmail.com >
+ */
+class BooleanValueTest extends DataValueTest {
+
+       /**
+        * @see DataValueTest::getClass
+        *
+        * @return string
+        */
+       public function getClass() {
+               return 'DataValues\BooleanValue';
+       }
+
+       public function validConstructorArgumentsProvider() {
+               $argLists = array();
+
+               $argLists[] = array( false );
+               $argLists[] = array( true );
+
+               return $argLists;
+       }
+
+       public function invalidConstructorArgumentsProvider() {
+               $argLists = array();
+
+               $argLists[] = array( );
+               $argLists[] = array( 42 );
+               $argLists[] = array( array() );
+               $argLists[] = array( '1' );
+               $argLists[] = array( '' );
+               $argLists[] = array( 0 );
+               $argLists[] = array( 1 );
+               $argLists[] = array( 'foo' );
+               $argLists[] = array( null );
+
+               return $argLists;
+       }
+
+       /**
+        * @dataProvider instanceProvider
+        * @param BooleanValue $boolean
+        * @param array $arguments
+        */
+       public function testGetValue( BooleanValue $boolean, array $arguments ) 
{
+               $this->assertEquals( $arguments[0], $boolean->getValue() );
+       }
+
+}
diff --git a/data-values/data-values/tests/phpunit/DataValueTest.php 
b/data-values/data-values/tests/phpunit/DataValueTest.php
new file mode 100644
index 0000000..45e2ff5
--- /dev/null
+++ b/data-values/data-values/tests/phpunit/DataValueTest.php
@@ -0,0 +1,211 @@
+<?php
+
+namespace DataValues\Tests;
+
+use DataValues\DataValue;
+
+/**
+ * Base for unit tests for DataValue implementing classes.
+ *
+ * @since 0.1
+ *
+ * @licence GNU GPL v2+
+ * @author Jeroen De Dauw < jeroended...@gmail.com >
+ */
+abstract class DataValueTest extends \PHPUnit_Framework_TestCase {
+
+       /**
+        * Returns the name of the concrete class tested by this test.
+        *
+        * @since 0.1
+        *
+        * @return string
+        */
+       public abstract function getClass();
+
+       public abstract function validConstructorArgumentsProvider();
+
+       public abstract function invalidConstructorArgumentsProvider();
+
+       /**
+        * Creates and returns a new instance of the concrete class.
+        *
+        * @since 0.1
+        *
+        * @return mixed
+        */
+       public function newInstance() {
+               $reflector = new \ReflectionClass( $this->getClass() );
+               $args = func_get_args();
+               $instance = $reflector->newInstanceArgs( $args );
+               return $instance;
+       }
+
+       /**
+        * @since 0.1
+        *
+        * @return array [instance, constructor args]
+        */
+       public function instanceProvider() {
+               $instanceBuilder = array( $this, 'newInstance' );
+
+               return array_map(
+                       function( array $args ) use ( $instanceBuilder ) {
+                               return array(
+                                       call_user_func_array( $instanceBuilder, 
$args ),
+                                       $args
+                               );
+                       },
+                       $this->validConstructorArgumentsProvider()
+               );
+       }
+
+       /**
+        * @dataProvider validConstructorArgumentsProvider
+        *
+        * @since 0.1
+        */
+       public function testConstructorWithValidArguments() {
+               $dataItem = call_user_func_array(
+                       array( $this, 'newInstance' ),
+                       func_get_args()
+               );
+
+               $this->assertInstanceOf( $this->getClass(), $dataItem );
+       }
+
+       /**
+        * @dataProvider invalidConstructorArgumentsProvider
+        *
+        * @since 0.1
+        */
+       public function testConstructorWithInvalidArguments() {
+               $this->setExpectedException( 'Exception' );
+
+               call_user_func_array(
+                       array( $this, 'newInstance' ),
+                       func_get_args()
+               );
+       }
+
+       /**
+        * @dataProvider instanceProvider
+        * @param DataValue $value
+        * @param array $arguments
+        */
+       public function testImplements( DataValue $value, array $arguments ) {
+               $this->assertInstanceOf( '\Immutable', $value );
+               $this->assertInstanceOf( '\Hashable', $value );
+               $this->assertInstanceOf( '\Comparable', $value );
+               $this->assertInstanceOf( '\Serializable', $value );
+               $this->assertInstanceOf( '\Copyable', $value );
+               $this->assertInstanceOf( '\DataValues\DataValue', $value );
+       }
+
+       /**
+        * @dataProvider instanceProvider
+        * @param DataValue $value
+        * @param array $arguments
+        */
+       public function testGetType( DataValue $value, array $arguments ) {
+               $valueType = $value->getType();
+               $this->assertInternalType( 'string', $valueType );
+               $this->assertTrue( strlen( $valueType ) > 0 );
+
+               // Check whether using getType statically returns the same as 
called from an instance:
+               $staticValueType = call_user_func( array( $this->getClass(), 
'getType' ) );
+               $this->assertEquals( $staticValueType, $valueType );
+       }
+
+       /**
+        * @dataProvider instanceProvider
+        * @param DataValue $value
+        * @param array $arguments
+        */
+       public function testSerialization( DataValue $value, array $arguments ) 
{
+               $serialization = serialize( $value );
+               $this->assertInternalType( 'string', $serialization );
+
+               $unserialized = unserialize( $serialization );
+               $this->assertInstanceOf( '\DataValues\DataValue', $unserialized 
);
+
+               $this->assertTrue( $value->equals( $unserialized ) );
+               $this->assertEquals( $value, $unserialized );
+       }
+
+       /**
+        * @dataProvider instanceProvider
+        * @param DataValue $value
+        * @param array $arguments
+        */
+       public function testEquals( DataValue $value, array $arguments ) {
+               $this->assertTrue( $value->equals( $value ) );
+
+               foreach ( array( true, false, null, 'foo', 42, array(), 4.2 ) 
as $otherValue ) {
+                       $this->assertFalse( $value->equals( $otherValue ) );
+               }
+       }
+
+       /**
+        * @dataProvider instanceProvider
+        * @param DataValue $value
+        * @param array $arguments
+        */
+       public function testGetHash( DataValue $value, array $arguments ) {
+               $hash = $value->getHash();
+
+               $this->assertInternalType( 'string', $hash );
+               $this->assertEquals( $hash, $value->getHash() );
+               $this->assertEquals( $hash, $value->getCopy()->getHash() );
+       }
+
+       /**
+        * @dataProvider instanceProvider
+        * @param DataValue $value
+        * @param array $arguments
+        */
+       public function testGetCopy( DataValue $value, array $arguments ) {
+               $copy = $value->getCopy();
+
+               $this->assertInstanceOf( '\DataValues\DataValue', $copy );
+               $this->assertTrue( $value->equals( $copy ) );
+       }
+
+       /**
+        * @dataProvider instanceProvider
+        * @param DataValue $value
+        * @param array $arguments
+        */
+       public function testGetValueSimple( DataValue $value, array $arguments 
) {
+               $value->getValue();
+               $this->assertTrue( true );
+       }
+
+       /**
+        * @dataProvider instanceProvider
+        * @param DataValue $value
+        * @param array $arguments
+        */
+       public function testGetArrayValueSimple( DataValue $value, array 
$arguments ) {
+               $value->getArrayValue();
+               $this->assertTrue( true );
+       }
+
+       /**
+        * @dataProvider instanceProvider
+        * @param DataValue $value
+        * @param array $arguments
+        */
+       public function testToArray( DataValue $value, array $arguments ) {
+               $array = $value->toArray();
+
+               $this->assertInternalType( 'array', $array );
+
+               $this->assertTrue( array_key_exists( 'type', $array ) );
+               $this->assertTrue( array_key_exists( 'value', $array ) );
+
+               $this->assertEquals( $value->getType(), $array['type'] );
+               $this->assertEquals( $value->getArrayValue(), $array['value'] );
+       }
+
+}
diff --git a/data-values/data-values/tests/phpunit/NumberValueTest.php 
b/data-values/data-values/tests/phpunit/NumberValueTest.php
new file mode 100644
index 0000000..ee7a67e
--- /dev/null
+++ b/data-values/data-values/tests/phpunit/NumberValueTest.php
@@ -0,0 +1,66 @@
+<?php
+
+namespace DataValues\Tests;
+
+use DataValues\NumberValue;
+
+/**
+ * @covers DataValues\NumberValue
+ *
+ * @group DataValue
+ * @group DataValueExtensions
+ *
+ * @licence GNU GPL v2+
+ * @author Jeroen De Dauw < jeroended...@gmail.com >
+ */
+class NumberValueTest extends DataValueTest {
+
+       /**
+        * @see DataValueTest::getClass
+        *
+        * @return string
+        */
+       public function getClass() {
+               return 'DataValues\NumberValue';
+       }
+
+       public function validConstructorArgumentsProvider() {
+               $argLists = array();
+
+               $argLists[] = array( 42 );
+               $argLists[] = array( -42 );
+               $argLists[] = array( 4.2 );
+               $argLists[] = array( -4.2 );
+               $argLists[] = array( 0 );
+
+               return $argLists;
+       }
+
+       public function invalidConstructorArgumentsProvider() {
+               $argLists = array();
+
+               $argLists[] = array( 'foo' );
+               $argLists[] = array( '' );
+               $argLists[] = array( '0' );
+               $argLists[] = array( '42' );
+               $argLists[] = array( '-42' );
+               $argLists[] = array( '4.2' );
+               $argLists[] = array( '-4.2' );
+               $argLists[] = array( false );
+               $argLists[] = array( true );
+               $argLists[] = array( null );
+               $argLists[] = array( '0x20' );
+
+               return $argLists;
+       }
+
+       /**
+        * @dataProvider instanceProvider
+        * @param NumberValue $number
+        * @param array $arguments
+        */
+       public function testGetValue( NumberValue $number, array $arguments ) {
+               $this->assertEquals( $arguments[0], $number->getValue() );
+       }
+
+}
diff --git a/data-values/data-values/tests/phpunit/StringValueTest.php 
b/data-values/data-values/tests/phpunit/StringValueTest.php
new file mode 100644
index 0000000..6e79335
--- /dev/null
+++ b/data-values/data-values/tests/phpunit/StringValueTest.php
@@ -0,0 +1,60 @@
+<?php
+
+namespace DataValues\Tests;
+
+use DataValues\StringValue;
+
+/**
+ * @covers DataValues\StringValue
+ *
+ * @group DataValue
+ * @group DataValueExtensions
+ *
+ * @licence GNU GPL v2+
+ * @author Jeroen De Dauw < jeroended...@gmail.com >
+ */
+class StringValueTest extends DataValueTest {
+
+       /**
+        * @see DataValueTest::getClass
+        *
+        * @return string
+        */
+       public function getClass() {
+               return 'DataValues\StringValue';
+       }
+
+       public function validConstructorArgumentsProvider() {
+               $argLists = array();
+
+               $argLists[] = array( 'foo' );
+               $argLists[] = array( '' );
+               $argLists[] = array( ' foo bar baz foo bar baz foo bar baz foo 
bar baz foo bar baz foo bar baz ' );
+
+
+               return $argLists;
+       }
+
+       public function invalidConstructorArgumentsProvider() {
+               $argLists = array();
+
+               $argLists[] = array( );
+               $argLists[] = array( 42 );
+               $argLists[] = array( array() );
+               $argLists[] = array( false );
+               $argLists[] = array( true );
+               $argLists[] = array( null );
+
+               return $argLists;
+       }
+
+       /**
+        * @dataProvider instanceProvider
+        * @param StringValue $string
+        * @param array $arguments
+        */
+       public function testGetValue( StringValue $string, array $arguments ) {
+               $this->assertEquals( $arguments[0], $string->getValue() );
+       }
+
+}
diff --git 
a/data-values/data-values/tests/phpunit/UnDeserializableValueTest.php 
b/data-values/data-values/tests/phpunit/UnDeserializableValueTest.php
new file mode 100644
index 0000000..8ad924e
--- /dev/null
+++ b/data-values/data-values/tests/phpunit/UnDeserializableValueTest.php
@@ -0,0 +1,121 @@
+<?php
+
+namespace DataValues\Tests;
+
+use DataValues\DataValue;
+use DataValues\UnDeserializableValue;
+use DataValues\UnknownValue;
+
+/**
+ * @covers DataValues\UnDeserializableValue
+ *
+ * @group DataValue
+ * @group DataValueExtensions
+ *
+ * @licence GNU GPL v2+
+ * @author Daniel Kinzler
+ */
+class UnDeserializableValueTest extends DataValueTest {
+
+       /**
+        * @see DataValueTest::getClass
+        *
+        * @return string
+        */
+       public function getClass() {
+               return 'DataValues\UnDeserializableValue';
+       }
+
+       public function validConstructorArgumentsProvider() {
+               $argLists = array();
+
+               $argLists[] = array( null, null, 'No type and no data' );
+               $argLists[] = array( null, 'string', 'A type but no data' );
+               $argLists[] = array( array( 'stuff' ), 'string', 'A type and 
bad data' );
+
+               return $argLists;
+       }
+
+       public function invalidConstructorArgumentsProvider() {
+               $argLists = array();
+
+               $argLists[] = array( new \stdClass(), null, 'No type and no 
data' );
+               $argLists[] = array( null, 42, 'No type and no data' );
+               $argLists[] = array( null, false, 'No type and no data' );
+               $argLists[] = array( null, array(), 'No type and no data' );
+               $argLists[] = array( null, null, null );
+               $argLists[] = array( null, null, true );
+               $argLists[] = array( null, null, array() );
+
+               return $argLists;
+       }
+
+
+       /**
+        * @dataProvider instanceProvider
+        *
+        * @param UnDeserializableValue $value
+        * @param array $arguments
+        */
+       public function testGetValue( UnDeserializableValue $value, array 
$arguments ) {
+               $this->assertEquals( $arguments[0], $value->getValue() );
+       }
+
+       /**
+        * @dataProvider instanceProvider
+        *
+        * @param UnDeserializableValue $value
+        * @param array $arguments
+        */
+       public function testGetArrayValue( UnDeserializableValue $value, array 
$arguments ) {
+               $this->assertEquals( $arguments[0], $value->getArrayValue() );
+       }
+
+       /**
+        * @dataProvider instanceProvider
+        *
+        * @param UnDeserializableValue $value
+        * @param array $arguments
+        */
+       public function testGetTargetType( UnDeserializableValue $value, array 
$arguments ) {
+               $this->assertEquals( $arguments[1], $value->getTargetType() );
+       }
+
+       /**
+        * @dataProvider instanceProvider
+        * @param DataValue $value
+        * @param array $arguments
+        */
+       public function testToArray( DataValue $value, array $arguments ) {
+               $array = $value->toArray();
+
+               $this->assertInternalType( 'array', $array );
+
+               $this->assertTrue( array_key_exists( 'type', $array ) );
+               $this->assertTrue( array_key_exists( 'value', $array ) );
+
+               $this->assertEquals( $value->getTargetType(), $array['type'] );
+               $this->assertEquals( $value->getValue(), $array['value'] );
+       }
+
+       /**
+        * Dummy implementation, there's nothing to test here.
+        *
+        * @return array
+        */
+       public static function dummyProvider() {
+               return array(
+                       array( new UnknownValue( 'dummy' ), array() )
+               );
+       }
+
+       /**
+        * @dataProvider dummyProvider
+        * @param DataValue $value
+        * @param array $arguments
+        */
+       public function testNewFromArray( DataValue $value, array $arguments ) {
+               $this->assertFalse( method_exists( $this->getClass(), 
'newFromArray' ) );
+       }
+
+}
diff --git a/data-values/data-values/tests/phpunit/UnknownValueTest.php 
b/data-values/data-values/tests/phpunit/UnknownValueTest.php
new file mode 100644
index 0000000..1f3fc94
--- /dev/null
+++ b/data-values/data-values/tests/phpunit/UnknownValueTest.php
@@ -0,0 +1,61 @@
+<?php
+
+namespace DataValues\Tests;
+
+use DataValues\UnknownValue;
+
+/**
+ * @covers DataValues\UnknownValue
+ *
+ * @group DataValue
+ * @group DataValueExtensions
+ * @group UnknownValueTest
+ *
+ * @licence GNU GPL v2+
+ * @author Jeroen De Dauw < jeroended...@gmail.com >
+ */
+class UnknownValueTest extends DataValueTest {
+
+       /**
+        * @see DataValueTest::getClass
+        *
+        * @return string
+        */
+       public function getClass() {
+               return 'DataValues\UnknownValue';
+       }
+
+       public function validConstructorArgumentsProvider() {
+               $argLists = array();
+
+               $argLists[] = array( 42 );
+               $argLists[] = array( array() );
+               $argLists[] = array( false );
+               $argLists[] = array( true );
+               $argLists[] = array( null );
+               $argLists[] = array( 'foo' );
+               $argLists[] = array( '' );
+               $argLists[] = array( ' foo bar baz foo bar baz foo bar baz foo 
bar baz foo bar baz foo bar baz ' );
+
+
+               return $argLists;
+       }
+
+       public function invalidConstructorArgumentsProvider() {
+               $argLists = array();
+
+               $argLists[] = array();
+
+               return $argLists;
+       }
+
+       /**
+        * @dataProvider instanceProvider
+        * @param UnknownValue $value
+        * @param array $arguments
+        */
+       public function testGetValue( UnknownValue $value, array $arguments ) {
+               $this->assertEquals( $arguments[0], $value->getValue() );
+       }
+
+}

-- 
To view, visit https://gerrit.wikimedia.org/r/368372
To unsubscribe, visit https://gerrit.wikimedia.org/r/settings

Gerrit-MessageType: merged
Gerrit-Change-Id: Ife17982fb9687dc9dc36e2be42dc54cd4b97e4d8
Gerrit-PatchSet: 3
Gerrit-Project: mediawiki/vendor
Gerrit-Branch: master
Gerrit-Owner: Addshore <addshorew...@gmail.com>
Gerrit-Reviewer: Addshore <addshorew...@gmail.com>
Gerrit-Reviewer: Legoktm <lego...@member.fsf.org>
Gerrit-Reviewer: jenkins-bot <>

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