public function addWrapper($name, $callback)
{
$wrap = array();
if ($this->viewHelperVariableContainer->exists('Flowpack\\Expose\\ViewHelpers\\WrapViewHelper', $name)) {
$wrap = $this->viewHelperVariableContainer->get('Flowpack\\Expose\\ViewHelpers\\WrapViewHelper', $name);
}
$wrap[] = $callback;
$this->viewHelperVariableContainer->addOrUpdate('Flowpack\\Expose\\ViewHelpers\\WrapViewHelper', $name, $wrap);
}
/**
* @test
*/
public function existsReturnsTrueIfTheSpecifiedKeyExistsAndIsNull()
{
$this->viewHelperVariableContainer->add('TYPO3\\Fluid\\ViewHelper\\NonExistent', 'someKey', null);
$this->assertTrue($this->viewHelperVariableContainer->exists('TYPO3\\Fluid\\ViewHelper\\NonExistent', 'someKey'));
}
/**
* @test
*/
public function aSetValueCanBeRemovedAgain()
{
$this->viewHelperVariableContainer->add('Tx_Fluid_ViewHelper_NonExistent', 'nonExistentKey', 'value1');
$this->viewHelperVariableContainer->remove('Tx_Fluid_ViewHelper_NonExistent', 'nonExistentKey');
$this->assertFalse($this->viewHelperVariableContainer->exists('Tx_Fluid_ViewHelper_NonExistent', 'nonExistentKey'));
}
