alan_k Sat, 24 Sep 2011 01:18:29 +0000
Revision: http://svn.php.net/viewvc?view=revision&revision=317226
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Log:
add is_a and is_subclass_of test with autoloader feature
Its a bit of an overkill, but should ensure breaks are easier to spot in future.
Changed paths:
A php/php-src/branches/PHP_5_3/tests/classes/is_a.phpt
Added: php/php-src/branches/PHP_5_3/tests/classes/is_a.phpt
===================================================================
--- php/php-src/branches/PHP_5_3/tests/classes/is_a.phpt (rev 0)
+++ php/php-src/branches/PHP_5_3/tests/classes/is_a.phpt 2011-09-24 01:18:29 UTC (rev 317226)
@@ -0,0 +1,707 @@
+--TEST--
+is_a and is_subclass_behaviour
+--SKIPIF--
+<?php if (version_compare(zend_version(), '2.0.0-dev', '<')) die('skip ZendEngine 2 needed'); ?>
+--FILE--
+<?php
+
+interface if_a {
+ function f_a();
+}
+
+interface if_b extends if_a {
+ function f_b();
+}
+
+class base {
+ function _is_a($sub) {
+
+ echo "\n>>> With Defined class\n";
+ echo str_pad('is_a( OBJECT:'.get_class($this).', '.$sub.') = ', 60) . (is_a($this, $sub) ? 'yes' : 'no')."\n";
+ echo str_pad('is_a( STRING:'.get_class($this).', '.$sub.') = ', 60). (is_a(get_class($this), $sub) ? 'yes' : 'no')."\n";
+ echo str_pad('is_subclass_of( OBJECT:'.get_class($this).', '.$sub.') = ', 60). (is_subclass_of($this, $sub) ? 'yes' : 'no')."\n";
+ echo str_pad('is_subclass_of( STRING:'.get_class($this).', '.$sub.') = ', 60). (is_subclass_of(get_class($this), $sub) ? 'yes' : 'no')."\n";
+
+ // with autoload options..
+ echo ">>> With Undefined\n";
+ echo str_pad('is_a( STRING:undefB, '.$sub.',true) = ', 60). (is_a('undefB', $sub, true) ? 'yes' : 'no')."\n";
+ echo str_pad('is_a( STRING:undefB, '.$sub.') = ', 60). (is_a('undefB', $sub) ? 'yes' : 'no')."\n";
+ echo str_pad('is_subclass_of( STRING:undefB, '.$sub.',false) = ', 60). (is_subclass_of('undefB', $sub, false) ? 'yes' : 'no')."\n";
+ echo str_pad('is_subclass_of( STRING:undefB, '.$sub.') = ', 60). (is_subclass_of('undefB', $sub) ? 'yes' : 'no')."\n";
+ }
+ function test() {
+ echo $this->_is_a('base');
+ echo $this->_is_a('derived_a');
+ echo $this->_is_a('derived_b');
+ echo $this->_is_a('derived_c');
+ echo $this->_is_a('derived_d');
+ echo $this->_is_a('if_a');
+ echo $this->_is_a('if_b');
+ echo $this->_is_a('undefA');
+ echo "\n";
+ }
+}
+
+class derived_a extends base implements if_a {
+ function f_a() {}
+}
+
+class derived_b extends base implements if_a, if_b {
+ function f_a() {}
+ function f_b() {}
+}
+
+class derived_c extends derived_a implements if_b {
+ function f_b() {}
+}
+
+class derived_d extends derived_c {
+}
+
+$t = new base();
+$t->test();
+eval('
+ function __autoload($name)
+ {
+ echo ">>>> In __autoload: ";
+ var_dump($name);
+ }
+');
+
+echo "NOW WITH AUTOLOAD\n\n";
+
+$t = new base();
+$t->test();
+
+$t = new derived_a();
+$t->test();
+
+$t = new derived_b();
+$t->test();
+
+$t = new derived_c();
+$t->test();
+
+$t = new derived_d();
+$t->test();
+
+
+
+
+
+?>
+--EXPECTF--
+>>> With Defined class
+is_a( OBJECT:base, base) = yes
+is_a( STRING:base, base) = no
+is_subclass_of( OBJECT:base, base) = no
+is_subclass_of( STRING:base, base) = no
+>>> With Undefined
+is_a( STRING:undefB, base,true) = no
+is_a( STRING:undefB, base) = no
+is_subclass_of( STRING:undefB, base,false) = no
+is_subclass_of( STRING:undefB, base) = no
+
+>>> With Defined class
+is_a( OBJECT:base, derived_a) = no
+is_a( STRING:base, derived_a) = no
+is_subclass_of( OBJECT:base, derived_a) = no
+is_subclass_of( STRING:base, derived_a) = no
+>>> With Undefined
+is_a( STRING:undefB, derived_a,true) = no
+is_a( STRING:undefB, derived_a) = no
+is_subclass_of( STRING:undefB, derived_a,false) = no
+is_subclass_of( STRING:undefB, derived_a) = no
+
+>>> With Defined class
+is_a( OBJECT:base, derived_b) = no
+is_a( STRING:base, derived_b) = no
+is_subclass_of( OBJECT:base, derived_b) = no
+is_subclass_of( STRING:base, derived_b) = no
+>>> With Undefined
+is_a( STRING:undefB, derived_b,true) = no
+is_a( STRING:undefB, derived_b) = no
+is_subclass_of( STRING:undefB, derived_b,false) = no
+is_subclass_of( STRING:undefB, derived_b) = no
+
+>>> With Defined class
+is_a( OBJECT:base, derived_c) = no
+is_a( STRING:base, derived_c) = no
+is_subclass_of( OBJECT:base, derived_c) = no
+is_subclass_of( STRING:base, derived_c) = no
+>>> With Undefined
+is_a( STRING:undefB, derived_c,true) = no
+is_a( STRING:undefB, derived_c) = no
+is_subclass_of( STRING:undefB, derived_c,false) = no
+is_subclass_of( STRING:undefB, derived_c) = no
+
+>>> With Defined class
+is_a( OBJECT:base, derived_d) = no
+is_a( STRING:base, derived_d) = no
+is_subclass_of( OBJECT:base, derived_d) = no
+is_subclass_of( STRING:base, derived_d) = no
+>>> With Undefined
+is_a( STRING:undefB, derived_d,true) = no
+is_a( STRING:undefB, derived_d) = no
+is_subclass_of( STRING:undefB, derived_d,false) = no
+is_subclass_of( STRING:undefB, derived_d) = no
+
+>>> With Defined class
+is_a( OBJECT:base, if_a) = no
+is_a( STRING:base, if_a) = no
+is_subclass_of( OBJECT:base, if_a) = no
+is_subclass_of( STRING:base, if_a) = no
+>>> With Undefined
+is_a( STRING:undefB, if_a,true) = no
+is_a( STRING:undefB, if_a) = no
+is_subclass_of( STRING:undefB, if_a,false) = no
+is_subclass_of( STRING:undefB, if_a) = no
+
+>>> With Defined class
+is_a( OBJECT:base, if_b) = no
+is_a( STRING:base, if_b) = no
+is_subclass_of( OBJECT:base, if_b) = no
+is_subclass_of( STRING:base, if_b) = no
+>>> With Undefined
+is_a( STRING:undefB, if_b,true) = no
+is_a( STRING:undefB, if_b) = no
+is_subclass_of( STRING:undefB, if_b,false) = no
+is_subclass_of( STRING:undefB, if_b) = no
+
+>>> With Defined class
+is_a( OBJECT:base, undefA) = no
+is_a( STRING:base, undefA) = no
+is_subclass_of( OBJECT:base, undefA) = no
+is_subclass_of( STRING:base, undefA) = no
+>>> With Undefined
+is_a( STRING:undefB, undefA,true) = no
+is_a( STRING:undefB, undefA) = no
+is_subclass_of( STRING:undefB, undefA,false) = no
+is_subclass_of( STRING:undefB, undefA) = no
+
+NOW WITH AUTOLOAD
+
+
+>>> With Defined class
+is_a( OBJECT:base, base) = yes
+is_a( STRING:base, base) = no
+is_subclass_of( OBJECT:base, base) = no
+is_subclass_of( STRING:base, base) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, base,true) = no
+is_a( STRING:undefB, base) = no
+is_subclass_of( STRING:undefB, base,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, base) = no
+
+>>> With Defined class
+is_a( OBJECT:base, derived_a) = no
+is_a( STRING:base, derived_a) = no
+is_subclass_of( OBJECT:base, derived_a) = no
+is_subclass_of( STRING:base, derived_a) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, derived_a,true) = no
+is_a( STRING:undefB, derived_a) = no
+is_subclass_of( STRING:undefB, derived_a,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, derived_a) = no
+
+>>> With Defined class
+is_a( OBJECT:base, derived_b) = no
+is_a( STRING:base, derived_b) = no
+is_subclass_of( OBJECT:base, derived_b) = no
+is_subclass_of( STRING:base, derived_b) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, derived_b,true) = no
+is_a( STRING:undefB, derived_b) = no
+is_subclass_of( STRING:undefB, derived_b,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, derived_b) = no
+
+>>> With Defined class
+is_a( OBJECT:base, derived_c) = no
+is_a( STRING:base, derived_c) = no
+is_subclass_of( OBJECT:base, derived_c) = no
+is_subclass_of( STRING:base, derived_c) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, derived_c,true) = no
+is_a( STRING:undefB, derived_c) = no
+is_subclass_of( STRING:undefB, derived_c,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, derived_c) = no
+
+>>> With Defined class
+is_a( OBJECT:base, derived_d) = no
+is_a( STRING:base, derived_d) = no
+is_subclass_of( OBJECT:base, derived_d) = no
+is_subclass_of( STRING:base, derived_d) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, derived_d,true) = no
+is_a( STRING:undefB, derived_d) = no
+is_subclass_of( STRING:undefB, derived_d,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, derived_d) = no
+
+>>> With Defined class
+is_a( OBJECT:base, if_a) = no
+is_a( STRING:base, if_a) = no
+is_subclass_of( OBJECT:base, if_a) = no
+is_subclass_of( STRING:base, if_a) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, if_a,true) = no
+is_a( STRING:undefB, if_a) = no
+is_subclass_of( STRING:undefB, if_a,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, if_a) = no
+
+>>> With Defined class
+is_a( OBJECT:base, if_b) = no
+is_a( STRING:base, if_b) = no
+is_subclass_of( OBJECT:base, if_b) = no
+is_subclass_of( STRING:base, if_b) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, if_b,true) = no
+is_a( STRING:undefB, if_b) = no
+is_subclass_of( STRING:undefB, if_b,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, if_b) = no
+
+>>> With Defined class
+is_a( OBJECT:base, undefA) = no
+is_a( STRING:base, undefA) = no
+is_subclass_of( OBJECT:base, undefA) = no
+is_subclass_of( STRING:base, undefA) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, undefA,true) = no
+is_a( STRING:undefB, undefA) = no
+is_subclass_of( STRING:undefB, undefA,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, undefA) = no
+
+
+>>> With Defined class
+is_a( OBJECT:derived_a, base) = yes
+is_a( STRING:derived_a, base) = no
+is_subclass_of( OBJECT:derived_a, base) = yes
+is_subclass_of( STRING:derived_a, base) = yes
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, base,true) = no
+is_a( STRING:undefB, base) = no
+is_subclass_of( STRING:undefB, base,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, base) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_a, derived_a) = yes
+is_a( STRING:derived_a, derived_a) = no
+is_subclass_of( OBJECT:derived_a, derived_a) = no
+is_subclass_of( STRING:derived_a, derived_a) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, derived_a,true) = no
+is_a( STRING:undefB, derived_a) = no
+is_subclass_of( STRING:undefB, derived_a,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, derived_a) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_a, derived_b) = no
+is_a( STRING:derived_a, derived_b) = no
+is_subclass_of( OBJECT:derived_a, derived_b) = no
+is_subclass_of( STRING:derived_a, derived_b) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, derived_b,true) = no
+is_a( STRING:undefB, derived_b) = no
+is_subclass_of( STRING:undefB, derived_b,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, derived_b) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_a, derived_c) = no
+is_a( STRING:derived_a, derived_c) = no
+is_subclass_of( OBJECT:derived_a, derived_c) = no
+is_subclass_of( STRING:derived_a, derived_c) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, derived_c,true) = no
+is_a( STRING:undefB, derived_c) = no
+is_subclass_of( STRING:undefB, derived_c,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, derived_c) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_a, derived_d) = no
+is_a( STRING:derived_a, derived_d) = no
+is_subclass_of( OBJECT:derived_a, derived_d) = no
+is_subclass_of( STRING:derived_a, derived_d) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, derived_d,true) = no
+is_a( STRING:undefB, derived_d) = no
+is_subclass_of( STRING:undefB, derived_d,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, derived_d) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_a, if_a) = yes
+is_a( STRING:derived_a, if_a) = no
+is_subclass_of( OBJECT:derived_a, if_a) = yes
+is_subclass_of( STRING:derived_a, if_a) = yes
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, if_a,true) = no
+is_a( STRING:undefB, if_a) = no
+is_subclass_of( STRING:undefB, if_a,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, if_a) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_a, if_b) = no
+is_a( STRING:derived_a, if_b) = no
+is_subclass_of( OBJECT:derived_a, if_b) = no
+is_subclass_of( STRING:derived_a, if_b) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, if_b,true) = no
+is_a( STRING:undefB, if_b) = no
+is_subclass_of( STRING:undefB, if_b,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, if_b) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_a, undefA) = no
+is_a( STRING:derived_a, undefA) = no
+is_subclass_of( OBJECT:derived_a, undefA) = no
+is_subclass_of( STRING:derived_a, undefA) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, undefA,true) = no
+is_a( STRING:undefB, undefA) = no
+is_subclass_of( STRING:undefB, undefA,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, undefA) = no
+
+
+>>> With Defined class
+is_a( OBJECT:derived_b, base) = yes
+is_a( STRING:derived_b, base) = no
+is_subclass_of( OBJECT:derived_b, base) = yes
+is_subclass_of( STRING:derived_b, base) = yes
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, base,true) = no
+is_a( STRING:undefB, base) = no
+is_subclass_of( STRING:undefB, base,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, base) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_b, derived_a) = no
+is_a( STRING:derived_b, derived_a) = no
+is_subclass_of( OBJECT:derived_b, derived_a) = no
+is_subclass_of( STRING:derived_b, derived_a) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, derived_a,true) = no
+is_a( STRING:undefB, derived_a) = no
+is_subclass_of( STRING:undefB, derived_a,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, derived_a) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_b, derived_b) = yes
+is_a( STRING:derived_b, derived_b) = no
+is_subclass_of( OBJECT:derived_b, derived_b) = no
+is_subclass_of( STRING:derived_b, derived_b) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, derived_b,true) = no
+is_a( STRING:undefB, derived_b) = no
+is_subclass_of( STRING:undefB, derived_b,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, derived_b) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_b, derived_c) = no
+is_a( STRING:derived_b, derived_c) = no
+is_subclass_of( OBJECT:derived_b, derived_c) = no
+is_subclass_of( STRING:derived_b, derived_c) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, derived_c,true) = no
+is_a( STRING:undefB, derived_c) = no
+is_subclass_of( STRING:undefB, derived_c,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, derived_c) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_b, derived_d) = no
+is_a( STRING:derived_b, derived_d) = no
+is_subclass_of( OBJECT:derived_b, derived_d) = no
+is_subclass_of( STRING:derived_b, derived_d) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, derived_d,true) = no
+is_a( STRING:undefB, derived_d) = no
+is_subclass_of( STRING:undefB, derived_d,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, derived_d) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_b, if_a) = yes
+is_a( STRING:derived_b, if_a) = no
+is_subclass_of( OBJECT:derived_b, if_a) = yes
+is_subclass_of( STRING:derived_b, if_a) = yes
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, if_a,true) = no
+is_a( STRING:undefB, if_a) = no
+is_subclass_of( STRING:undefB, if_a,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, if_a) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_b, if_b) = yes
+is_a( STRING:derived_b, if_b) = no
+is_subclass_of( OBJECT:derived_b, if_b) = yes
+is_subclass_of( STRING:derived_b, if_b) = yes
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, if_b,true) = no
+is_a( STRING:undefB, if_b) = no
+is_subclass_of( STRING:undefB, if_b,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, if_b) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_b, undefA) = no
+is_a( STRING:derived_b, undefA) = no
+is_subclass_of( OBJECT:derived_b, undefA) = no
+is_subclass_of( STRING:derived_b, undefA) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, undefA,true) = no
+is_a( STRING:undefB, undefA) = no
+is_subclass_of( STRING:undefB, undefA,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, undefA) = no
+
+
+>>> With Defined class
+is_a( OBJECT:derived_c, base) = yes
+is_a( STRING:derived_c, base) = no
+is_subclass_of( OBJECT:derived_c, base) = yes
+is_subclass_of( STRING:derived_c, base) = yes
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, base,true) = no
+is_a( STRING:undefB, base) = no
+is_subclass_of( STRING:undefB, base,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, base) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_c, derived_a) = yes
+is_a( STRING:derived_c, derived_a) = no
+is_subclass_of( OBJECT:derived_c, derived_a) = yes
+is_subclass_of( STRING:derived_c, derived_a) = yes
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, derived_a,true) = no
+is_a( STRING:undefB, derived_a) = no
+is_subclass_of( STRING:undefB, derived_a,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, derived_a) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_c, derived_b) = no
+is_a( STRING:derived_c, derived_b) = no
+is_subclass_of( OBJECT:derived_c, derived_b) = no
+is_subclass_of( STRING:derived_c, derived_b) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, derived_b,true) = no
+is_a( STRING:undefB, derived_b) = no
+is_subclass_of( STRING:undefB, derived_b,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, derived_b) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_c, derived_c) = yes
+is_a( STRING:derived_c, derived_c) = no
+is_subclass_of( OBJECT:derived_c, derived_c) = no
+is_subclass_of( STRING:derived_c, derived_c) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, derived_c,true) = no
+is_a( STRING:undefB, derived_c) = no
+is_subclass_of( STRING:undefB, derived_c,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, derived_c) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_c, derived_d) = no
+is_a( STRING:derived_c, derived_d) = no
+is_subclass_of( OBJECT:derived_c, derived_d) = no
+is_subclass_of( STRING:derived_c, derived_d) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, derived_d,true) = no
+is_a( STRING:undefB, derived_d) = no
+is_subclass_of( STRING:undefB, derived_d,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, derived_d) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_c, if_a) = yes
+is_a( STRING:derived_c, if_a) = no
+is_subclass_of( OBJECT:derived_c, if_a) = yes
+is_subclass_of( STRING:derived_c, if_a) = yes
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, if_a,true) = no
+is_a( STRING:undefB, if_a) = no
+is_subclass_of( STRING:undefB, if_a,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, if_a) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_c, if_b) = yes
+is_a( STRING:derived_c, if_b) = no
+is_subclass_of( OBJECT:derived_c, if_b) = yes
+is_subclass_of( STRING:derived_c, if_b) = yes
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, if_b,true) = no
+is_a( STRING:undefB, if_b) = no
+is_subclass_of( STRING:undefB, if_b,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, if_b) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_c, undefA) = no
+is_a( STRING:derived_c, undefA) = no
+is_subclass_of( OBJECT:derived_c, undefA) = no
+is_subclass_of( STRING:derived_c, undefA) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, undefA,true) = no
+is_a( STRING:undefB, undefA) = no
+is_subclass_of( STRING:undefB, undefA,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, undefA) = no
+
+
+>>> With Defined class
+is_a( OBJECT:derived_d, base) = yes
+is_a( STRING:derived_d, base) = no
+is_subclass_of( OBJECT:derived_d, base) = yes
+is_subclass_of( STRING:derived_d, base) = yes
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, base,true) = no
+is_a( STRING:undefB, base) = no
+is_subclass_of( STRING:undefB, base,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, base) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_d, derived_a) = yes
+is_a( STRING:derived_d, derived_a) = no
+is_subclass_of( OBJECT:derived_d, derived_a) = yes
+is_subclass_of( STRING:derived_d, derived_a) = yes
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, derived_a,true) = no
+is_a( STRING:undefB, derived_a) = no
+is_subclass_of( STRING:undefB, derived_a,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, derived_a) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_d, derived_b) = no
+is_a( STRING:derived_d, derived_b) = no
+is_subclass_of( OBJECT:derived_d, derived_b) = no
+is_subclass_of( STRING:derived_d, derived_b) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, derived_b,true) = no
+is_a( STRING:undefB, derived_b) = no
+is_subclass_of( STRING:undefB, derived_b,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, derived_b) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_d, derived_c) = yes
+is_a( STRING:derived_d, derived_c) = no
+is_subclass_of( OBJECT:derived_d, derived_c) = yes
+is_subclass_of( STRING:derived_d, derived_c) = yes
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, derived_c,true) = no
+is_a( STRING:undefB, derived_c) = no
+is_subclass_of( STRING:undefB, derived_c,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, derived_c) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_d, derived_d) = yes
+is_a( STRING:derived_d, derived_d) = no
+is_subclass_of( OBJECT:derived_d, derived_d) = no
+is_subclass_of( STRING:derived_d, derived_d) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, derived_d,true) = no
+is_a( STRING:undefB, derived_d) = no
+is_subclass_of( STRING:undefB, derived_d,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, derived_d) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_d, if_a) = yes
+is_a( STRING:derived_d, if_a) = no
+is_subclass_of( OBJECT:derived_d, if_a) = yes
+is_subclass_of( STRING:derived_d, if_a) = yes
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, if_a,true) = no
+is_a( STRING:undefB, if_a) = no
+is_subclass_of( STRING:undefB, if_a,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, if_a) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_d, if_b) = yes
+is_a( STRING:derived_d, if_b) = no
+is_subclass_of( OBJECT:derived_d, if_b) = yes
+is_subclass_of( STRING:derived_d, if_b) = yes
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, if_b,true) = no
+is_a( STRING:undefB, if_b) = no
+is_subclass_of( STRING:undefB, if_b,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, if_b) = no
+
+>>> With Defined class
+is_a( OBJECT:derived_d, undefA) = no
+is_a( STRING:derived_d, undefA) = no
+is_subclass_of( OBJECT:derived_d, undefA) = no
+is_subclass_of( STRING:derived_d, undefA) = no
+>>> With Undefined
+>>>> In __autoload: string(6) "undefB"
+is_a( STRING:undefB, undefA,true) = no
+is_a( STRING:undefB, undefA) = no
+is_subclass_of( STRING:undefB, undefA,false) = no
+>>>> In __autoload: string(6) "undefB"
+is_subclass_of( STRING:undefB, undefA) = no
--
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