/**
* Unregister a function
*
* @param string $name The function name
* @return TemplateEngineTwig
*/
public function unregisterFunction($name)
{
parent::unregisterFunction($name);
$functions = $this->_twig->getFunctions();
if (isset($functions[$name])) {
unset($functions[$name]);
}
return $this;
}
public function testRemoveExtension()
{
$twig = new Twig_Environment(new Twig_Loader_String());
$twig->addExtension(new Twig_Tests_EnvironmentTest_Extension());
$twig->removeExtension('test');
$this->assertFalse(array_key_exists('test', $twig->getTags()));
$this->assertFalse(array_key_exists('foo_filter', $twig->getFilters()));
$this->assertFalse(array_key_exists('foo_function', $twig->getFunctions()));
$this->assertFalse(array_key_exists('foo_test', $twig->getTests()));
$this->assertFalse(array_key_exists('foo_unary', $twig->getUnaryOperators()));
$this->assertFalse(array_key_exists('foo_binary', $twig->getBinaryOperators()));
$this->assertFalse(array_key_exists('foo_global', $twig->getGlobals()));
$this->assertCount(2, $twig->getNodeVisitors());
}
public function testAddExtension()
{
$twig = new Twig_Environment($this->getMock('Twig_LoaderInterface'));
$twig->addExtension(new Twig_Tests_EnvironmentTest_Extension());
$this->assertArrayHasKey('test', $twig->getTags());
$this->assertArrayHasKey('foo_filter', $twig->getFilters());
$this->assertArrayHasKey('foo_function', $twig->getFunctions());
$this->assertArrayHasKey('foo_test', $twig->getTests());
$this->assertArrayHasKey('foo_unary', $twig->getUnaryOperators());
$this->assertArrayHasKey('foo_binary', $twig->getBinaryOperators());
$this->assertArrayHasKey('foo_global', $twig->getGlobals());
$visitors = $twig->getNodeVisitors();
$this->assertEquals('Twig_Tests_EnvironmentTest_NodeVisitor', get_class($visitors[2]));
}
/**
* @group legacy
*/
public function testRemoveExtension()
{
$twig = new Twig_Environment($this->getMockBuilder('Twig_LoaderInterface')->getMock());
$twig->addExtension(new Twig_Tests_EnvironmentTest_Extension_WithDeprecatedName());
$twig->removeExtension('environment_test');
$this->assertFalse(array_key_exists('test', $twig->getTags()));
$this->assertFalse(array_key_exists('foo_filter', $twig->getFilters()));
$this->assertFalse(array_key_exists('foo_function', $twig->getFunctions()));
$this->assertFalse(array_key_exists('foo_test', $twig->getTests()));
$this->assertFalse(array_key_exists('foo_unary', $twig->getUnaryOperators()));
$this->assertFalse(array_key_exists('foo_binary', $twig->getBinaryOperators()));
$this->assertFalse(array_key_exists('foo_global', $twig->getGlobals()));
$this->assertCount(2, $twig->getNodeVisitors());
}