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<?php
/**
* Tests for the GenericArrayObject and deriving classes.
*
* 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.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @since 1.20
*
* @ingroup Test
* @group GenericArrayObject
*
* @author Jeroen De Dauw < jeroendedauw@gmail.com >
*/
abstract class GenericArrayObjectTest extends PHPUnit_Framework_TestCase {
/**
* Returns objects that can serve as elements in the concrete
* GenericArrayObject deriving class being tested.
*
* @since 1.20
*
* @return array
*/
abstract public function elementInstancesProvider();
/**
* Returns the name of the concrete class being tested.
*
* @since 1.20
*
* @return string
*/
abstract public function getInstanceClass();
/**
* Provides instances of the concrete class being tested.
*
* @since 1.20
*
* @return array
*/
public function instanceProvider() {
$instances = array();
foreach ( $this->elementInstancesProvider() as $elementInstances ) {
$instances[] = $this->getNew( $elementInstances[0] );
}
return $this->arrayWrap( $instances );
}
/**
* @since 1.20
*
* @param array $elements
*
* @return GenericArrayObject
*/
protected function getNew( array $elements = array() ) {
$class = $this->getInstanceClass();
return new $class( $elements );
}
/**
* @dataProvider elementInstancesProvider
*
* @since 1.20
*
* @param array $elements
*
* @covers GenericArrayObject::__construct
*/
public function testConstructor( array $elements ) {
$arrayObject = $this->getNew( $elements );
$this->assertEquals( count( $elements ), $arrayObject->count() );
}
/**
* @dataProvider elementInstancesProvider
*
* @since 1.20
*
* @param array $elements
*
* @covers GenericArrayObject::isEmpty
*/
public function testIsEmpty( array $elements ) {
$arrayObject = $this->getNew( $elements );
$this->assertEquals( $elements === array(), $arrayObject->isEmpty() );
}
/**
* @dataProvider instanceProvider
*
* @since 1.20
*
* @param GenericArrayObject $list
*
* @covers GenericArrayObject::offsetUnset
*/
public function testUnset( GenericArrayObject $list ) {
if ( $list->isEmpty() ) {
$this->assertTrue( true ); // We cannot test unset if there are no elements
} else {
$offset = $list->getIterator()->key();
$count = $list->count();
$list->offsetUnset( $offset );
$this->assertEquals( $count - 1, $list->count() );
}
if ( !$list->isEmpty() ) {
$offset = $list->getIterator()->key();
$count = $list->count();
unset( $list[$offset] );
$this->assertEquals( $count - 1, $list->count() );
}
}
/**
* @dataProvider elementInstancesProvider
*
* @since 1.20
*
* @param array $elements
*
* @covers GenericArrayObject::append
*/
public function testAppend( array $elements ) {
$list = $this->getNew();
$listSize = count( $elements );
foreach ( $elements as $element ) {
$list->append( $element );
}
$this->assertEquals( $listSize, $list->count() );
$list = $this->getNew();
foreach ( $elements as $element ) {
$list[] = $element;
}
$this->assertEquals( $listSize, $list->count() );
$this->checkTypeChecks( function ( GenericArrayObject $list, $element ) {
$list->append( $element );
} );
}
/**
* @since 1.20
*
* @param callable $function
*
* @covers GenericArrayObject::getObjectType
*/
protected function checkTypeChecks( $function ) {
$excption = null;
$list = $this->getNew();
$elementClass = $list->getObjectType();
foreach ( array( 42, 'foo', array(), new stdClass(), 4.2 ) as $element ) {
$validValid = $element instanceof $elementClass;
try {
call_user_func( $function, $list, $element );
$valid = true;
} catch ( InvalidArgumentException $exception ) {
$valid = false;
}
$this->assertEquals(
$validValid,
$valid,
'Object of invalid type got successfully added to a GenericArrayObject'
);
}
}
/**
* @dataProvider elementInstancesProvider
*
* @since 1.20
*
* @param array $elements
*
* @covers GenericArrayObject::offsetSet
*/
public function testOffsetSet( array $elements ) {
if ( $elements === array() ) {
$this->assertTrue( true );
return;
}
$list = $this->getNew();
$element = reset( $elements );
$list->offsetSet( 42, $element );
$this->assertEquals( $element, $list->offsetGet( 42 ) );
$list = $this->getNew();
$element = reset( $elements );
$list['oHai'] = $element;
$this->assertEquals( $element, $list['oHai'] );
$list = $this->getNew();
$element = reset( $elements );
$list->offsetSet( 9001, $element );
$this->assertEquals( $element, $list[9001] );
$list = $this->getNew();
$element = reset( $elements );
$list->offsetSet( null, $element );
$this->assertEquals( $element, $list[0] );
$list = $this->getNew();
$offset = 0;
foreach ( $elements as $element ) {
$list->offsetSet( null, $element );
$this->assertEquals( $element, $list[$offset++] );
}
$this->assertEquals( count( $elements ), $list->count() );
$this->checkTypeChecks( function ( GenericArrayObject $list, $element ) {
$list->offsetSet( mt_rand(), $element );
} );
}
/**
* @dataProvider instanceProvider
*
* @since 1.21
*
* @param GenericArrayObject $list
*
* @covers GenericArrayObject::getSerializationData
* @covers GenericArrayObject::serialize
* @covers GenericArrayObject::unserialize
*/
public function testSerialization( GenericArrayObject $list ) {
$serialization = serialize( $list );
$copy = unserialize( $serialization );
$this->assertEquals( $serialization, serialize( $copy ) );
$this->assertEquals( count( $list ), count( $copy ) );
$list = $list->getArrayCopy();
$copy = $copy->getArrayCopy();
$this->assertArrayEquals( $list, $copy, true, true );
}
}
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