/**
* Test the removeArgument method.
*
* @return void
*
* @since 1.0
*/
public function testRemoveArgument()
{
$this->assertNull($this->instance->removeArgument('non-existing'));
$this->instance->addArgument('foo', 'bar');
$old = $this->instance->removeArgument('foo');
$this->assertEquals('bar', $old);
$this->assertFalse($this->instance->hasArgument('foo'));
}
