getArgument() public method

If replaceArgument() has been used to replace an argument, this method will return the replacement value.
public getArgument ( integer $index ) : mixed
$index integer
return mixed The argument value
    /**
     * @expectedException \OutOfBoundsException
     */
    public function testGetArgumentShouldCheckBounds()
    {
        $def = new ChildDefinition('foo');

        $def->setArguments(array(0 => 'foo'));
        $def->replaceArgument(0, 'foo');

        $def->getArgument(1);
    }
 private function assertUrlPackage(ContainerBuilder $container, ChildDefinition $package, $baseUrls, $version, $format)
 {
     $this->assertEquals('assets.url_package', $package->getParent());
     $this->assertEquals($baseUrls, $package->getArgument(0));
     $this->assertVersionStrategy($container, $package->getArgument(1), $version, $format);
 }