FLEX-35037
Fixed the logic of some of the failing tests. The ones that are still failing 
seem to point to actual bugs.


Project: http://git-wip-us.apache.org/repos/asf/flex-sdk/repo
Commit: http://git-wip-us.apache.org/repos/asf/flex-sdk/commit/1905bf31
Tree: http://git-wip-us.apache.org/repos/asf/flex-sdk/tree/1905bf31
Diff: http://git-wip-us.apache.org/repos/asf/flex-sdk/diff/1905bf31

Branch: refs/heads/develop
Commit: 1905bf319828a7d93263671e205e6a690b292f60
Parents: 192f1e3
Author: Mihai Chira <[email protected]>
Authored: Mon Feb 22 18:36:32 2016 +0100
Committer: Mihai Chira <[email protected]>
Committed: Mon Feb 22 18:36:32 2016 +0100

----------------------------------------------------------------------
 .../tests/mx/collections/AddRemoveObjects.as    | 255 +++++++++++--------
 .../tests/mx/collections/AddRemoveStrings.as    | 157 +++++++-----
 .../tests/mx/collections/FilterNumbers.as       |  19 +-
 .../tests/mx/collections/FilterStrings.as       |  15 +-
 4 files changed, 261 insertions(+), 185 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/flex-sdk/blob/1905bf31/frameworks/projects/framework/tests/mx/collections/AddRemoveObjects.as
----------------------------------------------------------------------
diff --git 
a/frameworks/projects/framework/tests/mx/collections/AddRemoveObjects.as 
b/frameworks/projects/framework/tests/mx/collections/AddRemoveObjects.as
index 845b97a..df489f0 100644
--- a/frameworks/projects/framework/tests/mx/collections/AddRemoveObjects.as
+++ b/frameworks/projects/framework/tests/mx/collections/AddRemoveObjects.as
@@ -1,147 +1,192 @@
 package mx.collections {
-       import mx.collections.ArrayCollection;
-       
-       import org.flexunit.asserts.*;
+    import org.flexunit.asserts.*;
 
-       public class AddRemoveObjects
+    public class AddRemoveObjects
        {       
-               protected var ac:ArrayCollection;
+               private var _sut:ArrayCollection;
                
-               protected var players:Array=[
+               protected var players:Array = [
                        
{team:"TeamOne",jerseyNumber:80,lastName:"PlayerA",firstName:"Aa"},
                        {team:"TeamTwo",jerseyNumber:7, 
lastName:"PlayerB",firstName:"Bb"},
                        {team:"TeamOne",jerseyNumber:12, 
lastName:"PlayerC",firstName:"Cc"},
                        
{team:"TeamOne",jerseyNumber:21,lastName:"PlayerD",firstName:"Dd"},
                        {team:"TeamThree",jerseyNumber:34, 
lastName:"PlayerE",firstName:"Ee"},
                        {team:"TeamOne",jerseyNumber:12, 
lastName:"PlayerF",firstName:"Ff"},
-                       {team:"TeamTwo",jerseyNumber:7, 
lastName:"PlayerG",firstName:"Gg"},
+                       {team:"TeamTwo",jerseyNumber:7, 
lastName:"PlayerG",firstName:"Gg"}
                ];
                
                [Before]
                public function setUp():void
                {
-                       ac = new ArrayCollection();
+                       _sut = new ArrayCollection();
                }
                
                [After]
                public function tearDown():void
                {
-                       ac = null;
+                       _sut = null;
                }
                
                [Test]
                public function empty():void
                {
-                       assertEquals(ac.length, 0);
+                       assertEquals(_sut.length, 0);
                }
                
                [Test]
                public function addObjects():void
                {
-                       ac = new ArrayCollection(players);
-                       assertEquals("Length is not seven", ac.length, 7);
-                       assertEquals("First element not correct", ac[0], 
players[0]);
-                       assertEquals("Second element not correct", ac[1], 
players[1]);
-                       assertEquals("Third element not correct", ac[2], 
players[2]);
-                       assertEquals("Fouth element not correct", ac[3], 
players[3]);
-                       assertEquals("Fifth element not correct", ac[4], 
players[4]);
-                       assertEquals("Sixth element not correct", ac[5], 
players[5]);
-                       assertEquals("Seventh element not correct", ac[6], 
players[6]);
+                       _sut = new ArrayCollection(players);
+                       assertEquals("Length is not seven", _sut.length, 7);
+                       assertEquals("First element not correct", _sut[0], 
players[0]);
+                       assertEquals("Second element not correct", _sut[1], 
players[1]);
+                       assertEquals("Third element not correct", _sut[2], 
players[2]);
+                       assertEquals("Fouth element not correct", _sut[3], 
players[3]);
+                       assertEquals("Fifth element not correct", _sut[4], 
players[4]);
+                       assertEquals("Sixth element not correct", _sut[5], 
players[5]);
+                       assertEquals("Seventh element not correct", _sut[6], 
players[6]);
                }
                
                [Test]
                public function addDuplicate():void
                {
                        addObjects();
-                       ac.addItem(players[0]);
-                       assertEquals("Length is not eight", ac.length, 8);
-                       assertEquals("First element not correct", ac[0], 
players[0]);
-                       assertEquals("Second element not correct", ac[1], 
players[1]);
-                       assertEquals("Third element not correct", ac[2], 
players[2]);
-                       assertEquals("Fouth element not correct", ac[3], 
players[3]);
-                       assertEquals("Fifth element not correct", ac[4], 
players[4]);
-                       assertEquals("Sixth element not correct", ac[5], 
players[5]);
-                       assertEquals("Seventh element not correct", ac[6], 
players[6]);
-                       assertEquals("Eighth element not correct", ac[7], 
players[0]);
+                       _sut.addItem(players[0]);
+                       assertEquals("Length is not eight", _sut.length, 8);
+                       assertEquals("First element not correct", _sut[0], 
players[0]);
+                       assertEquals("Second element not correct", _sut[1], 
players[1]);
+                       assertEquals("Third element not correct", _sut[2], 
players[2]);
+                       assertEquals("Fouth element not correct", _sut[3], 
players[3]);
+                       assertEquals("Fifth element not correct", _sut[4], 
players[4]);
+                       assertEquals("Sixth element not correct", _sut[5], 
players[5]);
+                       assertEquals("Seventh element not correct", _sut[6], 
players[6]);
+                       assertEquals("Eighth element not correct", _sut[7], 
players[0]);
                }
                
                [Test]
                public function removeDuplicate():void
                {
+            //given
                        addObjects();
-                       ac.addItem(players[0]);
-                       ac.removeItemAt(0);
-                       assertEquals("Length is not seven", ac.length, 7);
-                       assertEquals("First element not correct", ac[0], 
players[1]);
-                       assertEquals("Second element not correct", ac[1], 
players[2]);
-                       assertEquals("Third element not correct", ac[2], 
players[3]);
-                       assertEquals("Fouth element not correct", ac[3], 
players[4]);
-                       assertEquals("Fifth element not correct", ac[4], 
players[5]);
-                       assertEquals("Sixth element not correct", ac[5], 
players[6]);
-                       assertEquals("Seventh element not correct", ac[6], 
players[0]);
+            var firstPlayer:* = players[0];
+            var secondPlayer:* = players[1];
+            var thirdPlayer:* = players[2];
+            var fourthPlayer:* = players[3];
+            var fifthPlayer:* = players[4];
+            var sixthPlayer:* = players[5];
+            var seventhPlayer:* = players[6];
+
+            //when
+                       _sut.addItem(players[0]);
+            _sut.removeItemAt(0);
+            //then
+                       assertEquals("Length is not seven", _sut.length, 7);
+            assertEquals("First element not correct", _sut[0], secondPlayer);
+            assertEquals("Second element not correct", _sut[1], thirdPlayer);
+            assertEquals("Third element not correct", _sut[2], fourthPlayer);
+            assertEquals("Fourth element not correct", _sut[3], fifthPlayer);
+            assertEquals("Fifth element not correct", _sut[4], sixthPlayer);
+            assertEquals("Sixth element not correct", _sut[5], seventhPlayer);
+            assertEquals("Seventh element not correct", _sut[6], firstPlayer);
                }
                
                [Test]
                public function removeAllObjects():void
                {
                        addObjects();
-                       ac.removeAll();
-                       assertEquals("Length is not zero", ac.length, 0);       
        
+                       _sut.removeAll();
+                       assertEquals("Length is not zero", _sut.length, 0);
                }
                
                [Test]
                public function removeFirstObjects():void
                {
+            //given
                        addObjects();
-                       ac.removeItemAt(0);
-                       assertEquals("First element not correct", ac[0], 
players[1]);
-                       assertEquals("Length is not six", ac.length, 6);
-                       ac.removeItemAt(0);
-                       assertEquals("Length is not five", ac.length, 5);
-                       ac.removeItemAt(0);
-                       assertEquals("Length is not four", ac.length, 4);
-                       ac.removeItemAt(0);
-                       assertEquals("Length is not three", ac.length, 3);
-                       ac.removeItemAt(0);
-                       assertEquals("Length is not two", ac.length, 2);
-                       ac.removeItemAt(0);
-                       assertEquals("Length is not one", ac.length, 1);
-                       ac.removeItemAt(0);
-                       assertEquals("Length is not zero", ac.length, 0);
+            var secondPlayer:Object = players[1];
+
+            //when
+                       _sut.removeItemAt(0);
+
+            //then
+            assertEquals("First element not correct", secondPlayer, _sut[0]);
+                       assertEquals("Length is not six", 6, _sut.length);
+
+            //when
+                       _sut.removeItemAt(0);
+            //then
+                       assertEquals("Length is not five", _sut.length, 5);
+
+            //when
+                       _sut.removeItemAt(0);
+            //then
+                       assertEquals("Length is not four", _sut.length, 4);
+
+            //when
+                       _sut.removeItemAt(0);
+            //then
+                       assertEquals("Length is not three", _sut.length, 3);
+
+            //when
+                       _sut.removeItemAt(0);
+            //then
+                       assertEquals("Length is not two", _sut.length, 2);
+
+            //when
+                       _sut.removeItemAt(0);
+            //then
+                       assertEquals("Length is not one", _sut.length, 1);
+
+            //when
+                       _sut.removeItemAt(0);
+            //then
+                       assertEquals("Length is not zero", _sut.length, 0);
                }
                
                [Test]
                public function removeLastNumbers():void
                {
                        addObjects();
-                       ac.removeItemAt(6);
-                       assertEquals("First element not correct", ac[0], 
players[0]);
-                       assertEquals("Length is not six", ac.length, 6);
-                       ac.removeItemAt(0);
-                       assertEquals("Length is not five", ac.length, 5);
-                       ac.removeItemAt(0);
-                       assertEquals("Length is not four", ac.length, 4);
-                       ac.removeItemAt(0);
-                       assertEquals("Length is not three", ac.length, 3);
-                       ac.removeItemAt(0);
-                       assertEquals("Length is not two", ac.length, 2);
-                       ac.removeItemAt(0);
-                       assertEquals("Length is not one", ac.length, 1);
-                       ac.removeItemAt(0);
-                       assertEquals("Length is not zero", ac.length, 0);
+                       _sut.removeItemAt(6);
+                       assertEquals("First element not correct", _sut[0], 
players[0]);
+                       assertEquals("Length is not six", _sut.length, 6);
+                       _sut.removeItemAt(0);
+                       assertEquals("Length is not five", _sut.length, 5);
+                       _sut.removeItemAt(0);
+                       assertEquals("Length is not four", _sut.length, 4);
+                       _sut.removeItemAt(0);
+                       assertEquals("Length is not three", _sut.length, 3);
+                       _sut.removeItemAt(0);
+                       assertEquals("Length is not two", _sut.length, 2);
+                       _sut.removeItemAt(0);
+                       assertEquals("Length is not one", _sut.length, 1);
+                       _sut.removeItemAt(0);
+                       assertEquals("Length is not zero", _sut.length, 0);
                }
                
                [Test]
                public function removeItemByIndex():void
                {
+                       //given
                        addObjects();
-                       ac.removeItemAt(ac.getItemIndex(players[0]));
-                       assertEquals("First element not correct", ac[0], 
players[1]);
-                       assertEquals("Length is not six", ac.length, 6);
-                       ac.removeItemAt(ac.getItemIndex(players[2]));
-                       assertEquals("First element not correct", ac[0], 
players[1]);
-                       assertEquals("Second element not correct", ac[1], 
players[3]);
-                       assertEquals("Length is not four", ac.length, 4);
+            const secondPlayer:Object = players[1];
+            const thirdPlayer:Object = players[2];
+            const fourthPlayer:Object = players[3];
+
+            //when
+                       _sut.removeItemAt(_sut.getItemIndex(players[0]));
+
+            //then
+            assertEquals("First element incorrect", secondPlayer, _sut[0]);
+                       assertEquals("Length is not six", 6, _sut.length);
+
+            //when
+                       _sut.removeItemAt(_sut.getItemIndex(thirdPlayer));
+
+            //then
+                       assertEquals("First element not correct", secondPlayer, 
_sut[0]);
+                       assertEquals("Second element not correct", 
fourthPlayer, _sut[1]);
+                       assertEquals("Length is not four", 5, _sut.length);
                }
                
                [Test]
@@ -149,53 +194,61 @@ package mx.collections {
                {
                        addObjects();
                        try {
-                               ac.removeItemAt(-1);
+                               _sut.removeItemAt(-1);
                        }
                        catch (error:Error)
                        {
                                assertTrue("Error not range error", error is 
RangeError);
                        }
-                       assertEquals("Length is not seven", ac.length, 7);
+                       assertEquals("Length is not seven", _sut.length, 7);
                        try {
-                               ac.removeItemAt(10);
+                               _sut.removeItemAt(10);
                        }
                        catch (error:Error)
                        {
                                assertTrue("Error not range error", error is 
RangeError);
                        }
-                       assertEquals("Length is not seven", ac.length, 7);
+                       assertEquals("Length is not seven", _sut.length, 7);
                }
                
                [Test]
                public function swapItemsTwoThenOne():void
                {
+            //given
                        addObjects();
-                       
-                       var item1:Object = ac.getItemAt(0);
-                       var item2:Object = ac.getItemAt(1);
-                       
-                       ac.setItemAt(item2,0);
-                       ac.setItemAt(item1,1);
-                       
-                       assertEquals("Length is not seven", ac.length, 7);
-                       assertEquals("First element not correct", ac[0], 
players[1]);
-                       assertEquals("Second element not correct", ac[1], 
players[0]);
+                       var item1:Object = _sut.getItemAt(0);
+                       var item2:Object = _sut.getItemAt(1);
+            var firstPlayer:* = players[0];
+            var secondPlayer:* = players[1];
+
+            //when
+                       _sut.setItemAt(item2,0);
+                       _sut.setItemAt(item1,1);
+
+            //then
+                       assertEquals("Length is not seven", _sut.length, 7);
+            assertEquals("First element not correct", _sut[0], secondPlayer);
+            assertEquals("Second element not correct", _sut[1], firstPlayer);
                }
                
                [Test]
                public function swapItemsOneThenTwo():void
                {
+            //given
                        addObjects();
+                       var item1:Object = _sut.getItemAt(0);
+                       var item2:Object = _sut.getItemAt(1);
+            var secondPlayer:Object = players[1];
+            var firstPlayer:Object = players[0];
+
+            //when
+                       _sut.setItemAt(item1,1);
+                       _sut.setItemAt(item2,0);
 
-                       var item1:Object = ac.getItemAt(0);
-                       var item2:Object = ac.getItemAt(1);
-                       
-                       ac.setItemAt(item1,1);
-                       ac.setItemAt(item2,0);
-                       
-                       assertEquals("Length is not seven", ac.length, 7);
-                       assertEquals("First element not correct", ac[0], 
players[1]);
-                       assertEquals("Second element not correct", ac[1], 
players[0]);
+            //then
+                       assertEquals("Length is not seven", _sut.length, 7);
+            assertEquals("First element not correct", _sut[0], secondPlayer);
+            assertEquals("Second element not correct", _sut[1], firstPlayer);
 
                }
                

http://git-wip-us.apache.org/repos/asf/flex-sdk/blob/1905bf31/frameworks/projects/framework/tests/mx/collections/AddRemoveStrings.as
----------------------------------------------------------------------
diff --git 
a/frameworks/projects/framework/tests/mx/collections/AddRemoveStrings.as 
b/frameworks/projects/framework/tests/mx/collections/AddRemoveStrings.as
index cc9145f..43220c3 100644
--- a/frameworks/projects/framework/tests/mx/collections/AddRemoveStrings.as
+++ b/frameworks/projects/framework/tests/mx/collections/AddRemoveStrings.as
@@ -5,108 +5,121 @@ package mx.collections {
 
        public class AddRemoveStrings
        {       
-               protected var ac:ArrayCollection;
+               protected var _sut:ArrayCollection;
                
                [Before]
                public function setUp():void
                {
-                       ac = new ArrayCollection();
+                       _sut = new ArrayCollection();
                }
                
                [After]
                public function tearDown():void
                {
-                       ac = null;
+                       _sut = null;
                }
                
                [Test]
                public function empty():void
                {
-                       assertEquals(ac.length, 0);
+                       assertEquals(0, _sut.length);
                }
                
                [Test]
                public function addStrings():void
                {
-                       ac.addItem("A");
-                       assertEquals("Length is not one", ac.length, 1);
-                       assertEquals("First element not correct", ac[0], "A");
-                       ac.addItem("B");
-                       assertEquals("Length is not two", ac.length, 2);
-                       assertEquals("Second element not correct", ac[1], "B");
-                       ac.addItem("D");
-                       assertEquals("Length is not three", ac.length, 3);
-                       assertEquals("Second element not correct", ac[2], "D");
-                       ac.addItem("C");
-                       assertEquals("Length is not four", ac.length, 4);
-                       assertEquals("Second element not correct", ac[3], "C");
+                       _sut.addItem("A");
+                       assertEquals("Length is not one", 1, _sut.length);
+                       assertEquals("First element not correct", "A", _sut[0]);
+
+                       _sut.addItem("B");
+                       assertEquals("Length is not two", 2, _sut.length);
+                       assertEquals("Second element not correct", "B", 
_sut[1]);
+
+                       _sut.addItem("D");
+                       assertEquals("Length is not three", 3, _sut.length);
+                       assertEquals("Second element not correct", "D", 
_sut[2]);
+
+                       _sut.addItem("C");
+                       assertEquals("Length is not four", 4, _sut.length);
+                       assertEquals("Second element not correct", "C", 
_sut[3]);
                }
                
                [Test]
                public function addDuplicate():void
                {
+            //given
                        addStrings();
-                       ac.addItem("B");
-                       assertEquals("Length is not five", ac.length, 5);
-                       assertEquals("First element not correct", ac[0], "A");
-                       assertEquals("Second element not correct", ac[1], "B");
-                       assertEquals("Second element not correct", ac[2], "D");
-                       assertEquals("Second element not correct", ac[3], "C");
-                       assertEquals("Second element not correct", ac[4], "B");
+
+            //when
+                       _sut.addItem("B");
+
+            //then
+                       assertEquals("Length is not five", 5, _sut.length);
+                       assertEquals("First element not correct", "A", _sut[0]);
+                       assertEquals("Second element not correct", "B", 
_sut[1]);
+                       assertEquals("Second element not correct", "D", 
_sut[2]);
+                       assertEquals("Second element not correct", "C", 
_sut[3]);
+                       assertEquals("Second element not correct", "B", 
_sut[4]);
                }
                
                [Test]
                public function removeDuplicate():void
                {
+            //given
                        addStrings();
-                       ac.addItem("B");
-                       ac.removeItemAt(1);
-                       assertEquals("Length is not four", ac.length, 4);
-                       assertEquals("First element not correct", ac[0], "A");
-                       assertEquals("Second element not correct", ac[1], "D");
-                       assertEquals("Second element not correct", ac[2], "C");
-                       assertEquals("Second element not correct", ac[3], "B");
+
+            //when
+                       _sut.addItem("B");
+                       _sut.removeItemAt(1);
+
+            //then
+                       assertEquals("Length is not four", 4, _sut.length);
+                       assertEquals("First element not correct", _sut[0], "A");
+                       assertEquals("Second element not correct", _sut[1], 
"D");
+                       assertEquals("Second element not correct", _sut[2], 
"C");
+                       assertEquals("Second element not correct", _sut[3], 
"B");
                }
                
                [Test]
                public function removeAllStrings():void
                {
                        addStrings();
-                       ac.removeAll();
-                       assertEquals("Length is not zero", ac.length, 0);       
        
+                       _sut.removeAll();
+                       assertEquals("Length is not zero", _sut.length, 0);
                }
                
                [Test]
                public function removeFirstStrings():void
                {
                        addStrings();
-                       ac.removeItemAt(0);
-                       assertEquals("First element not correct", ac[0], "B");
-                       assertEquals("Length is not three", ac.length, 3);
-                       ac.removeItemAt(0);
-                       assertEquals("Length is not two", ac.length, 2);
+                       _sut.removeItemAt(0);
+                       assertEquals("First element not correct", _sut[0], "B");
+                       assertEquals("Length is not three", _sut.length, 3);
+                       _sut.removeItemAt(0);
+                       assertEquals("Length is not two", _sut.length, 2);
                }
                
                [Test]
                public function removeLastStrings():void
                {
                        addStrings();
-                       ac.removeItemAt(1);
-                       assertEquals("First element not correct", ac[0], "A");
-                       assertEquals("Length is not three", ac.length, 3);
-                       ac.removeItemAt(0);
-                       assertEquals("Length is not two", ac.length, 2);
+                       _sut.removeItemAt(1);
+                       assertEquals("First element not correct", _sut[0], "A");
+                       assertEquals("Length is not three", _sut.length, 3);
+                       _sut.removeItemAt(0);
+                       assertEquals("Length is not two", _sut.length, 2);
                }
                
                [Test]
                public function removeItemByIndex():void
                {
                        addStrings();
-                       ac.removeItemAt(ac.getItemIndex("B"));
-                       assertEquals("First element not correct", ac[0], "A");
-                       assertEquals("Length is not three", ac.length, 3);
-                       ac.removeItemAt(ac.getItemIndex("D"));
-                       assertEquals("Length is not two", ac.length, 2);
+                       _sut.removeItemAt(_sut.getItemIndex("B"));
+                       assertEquals("First element not correct", _sut[0], "A");
+                       assertEquals("Length is not three", _sut.length, 3);
+                       _sut.removeItemAt(_sut.getItemIndex("D"));
+                       assertEquals("Length is not two", _sut.length, 2);
                }
                
                [Test]
@@ -114,53 +127,57 @@ package mx.collections {
                {
                        addStrings();
                        try {
-                               ac.removeItemAt(-1);
+                               _sut.removeItemAt(-1);
                        }
                        catch (error:Error)
                        {
                                assertTrue("Error not range error", error is 
RangeError);
                        }
-                       assertEquals("Length is not four", ac.length, 4);
+                       assertEquals("Length is not four", 4, _sut.length);
                        try {
-                               ac.removeItemAt(10);
+                               _sut.removeItemAt(10);
                        }
                        catch (error:Error)
                        {
                                assertTrue("Error not range error", error is 
RangeError);
                        }
-                       assertEquals("Length is not two", ac.length, 4);
+                       assertEquals("Length is not two", 4, _sut.length);
                }
                
                [Test]
                public function swapItemsTwoThenOne():void
                {
+            //given
                        addStrings();
-                       
-                       var item1:String = ac.getItemAt(0) as String;
-                       var item2:String = ac.getItemAt(1) as String;
-                       
-                       ac.setItemAt(item2, 0);
-                       ac.setItemAt(item1, 1);
-                       
-                       assertEquals("Length is not four", ac.length, 4);
-                       assertEquals("First element not correct", ac[0], "B");
-                       assertEquals("Second element not correct", ac[1], "A");
+                       var item1:String = _sut.getItemAt(0) as String;
+                       var item2:String = _sut.getItemAt(1) as String;
+
+            //when
+                       _sut.setItemAt(item2, 0);
+                       _sut.setItemAt(item1, 1);
+
+            //then
+                       assertEquals("Length is not four", _sut.length, 4);
+                       assertEquals("First element not correct", _sut[0], "B");
+                       assertEquals("Second element not correct", _sut[1], 
"A");
                }
                
                [Test]
                public function swapItemsOneThenTwo():void
                {
+            //given
                        addStrings();
+                       var item1:String = _sut.getItemAt(0) as String;
+                       var item2:String = _sut.getItemAt(1) as String;
+
+                       //when
+                       _sut.setItemAt(item1, 1);
+                       _sut.setItemAt(item2, 0);
 
-                       var item1:String = ac.getItemAt(0) as String;
-                       var item2:String = ac.getItemAt(1) as String;
-                       
-                       ac.setItemAt(item1, 1);
-                       ac.setItemAt(item2, 0);
-                       
-                       assertEquals("Length is not two", ac.length, 2);
-                       assertEquals("First element not correct", ac[0], "B");
-                       assertEquals("Second element not correct", ac[1], "A");
+            //then
+                       assertEquals("Length is not four", 4, _sut.length);
+                       assertEquals("First element not correct", _sut[0], "B");
+                       assertEquals("Second element not correct", _sut[1], 
"A");
                }
                
        }

http://git-wip-us.apache.org/repos/asf/flex-sdk/blob/1905bf31/frameworks/projects/framework/tests/mx/collections/FilterNumbers.as
----------------------------------------------------------------------
diff --git 
a/frameworks/projects/framework/tests/mx/collections/FilterNumbers.as 
b/frameworks/projects/framework/tests/mx/collections/FilterNumbers.as
index 34e03f2..b7840d8 100644
--- a/frameworks/projects/framework/tests/mx/collections/FilterNumbers.as
+++ b/frameworks/projects/framework/tests/mx/collections/FilterNumbers.as
@@ -191,19 +191,22 @@ package mx.collections {
                [Test]
                public function swapItemsTwoThenOne():void
                {
+                       //given
                        addNumbers();
-                       ac.filterFunction = allIn; 
+                       ac.filterFunction = allIn;
                        ac.refresh();
                        
                        var item1:Number = ac.getItemAt(0) as Number;
                        var item2:Number = ac.getItemAt(1) as Number;
-                       
-                       ac.setItemAt(item2,0);
-                       ac.setItemAt(item1,1);
-                       
-                       assertEquals("Length is not two", ac.length, 2);
-                       assertEquals("First element not correct", ac[0], 2);
-                       assertEquals("Second element not correct", ac[1], 1);
+
+            //when
+                       ac.setItemAt(item2, 0);
+                       ac.setItemAt(item1, 1);
+
+            //then
+                       assertEquals("Length is not two", 2, ac.length);
+                       assertEquals("First element not correct", 2, ac[0]);
+                       assertEquals("Second element not correct", 1, ac[1]);
                }
                
                [Test]

http://git-wip-us.apache.org/repos/asf/flex-sdk/blob/1905bf31/frameworks/projects/framework/tests/mx/collections/FilterStrings.as
----------------------------------------------------------------------
diff --git 
a/frameworks/projects/framework/tests/mx/collections/FilterStrings.as 
b/frameworks/projects/framework/tests/mx/collections/FilterStrings.as
index a3be478..48e6a5d 100644
--- a/frameworks/projects/framework/tests/mx/collections/FilterStrings.as
+++ b/frameworks/projects/framework/tests/mx/collections/FilterStrings.as
@@ -209,21 +209,24 @@ package mx.collections {
                [Test]
                public function swapItemsTwoThenOne():void
                {
+                       //given
                        addStrings();
                        ac.filterFunction = allIn; 
                        ac.refresh();
                        
                        var item1:String = ac.getItemAt(0) as String;
                        var item2:String = ac.getItemAt(1) as String;
-                       
+
+            //when
                        ac.setItemAt(item2,0);
                        ac.setItemAt(item1,1);
-                       
+
+            //then
                        assertEquals("Length is not four", ac.length, 4);
-                       assertEquals("First element not correct", ac[0], "B");
-                       assertEquals("Second element not correct", ac[1], "A");
-                       assertEquals("Third element not correct", ac[2], "D");
-                       assertEquals("Four element not correct", ac[3], "C");
+                       assertEquals("First element not correct", "B", ac[0]);
+                       assertEquals("Second element not correct", "A", ac[1]);
+                       assertEquals("Third element not correct", "D", ac[2]);
+                       assertEquals("Four element not correct", "C", ac[3]);
                }
                
                [Test]

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