Contao\CoreBundle\Test\DataContainer\PaletteManipulatorTest::testFallbackClosure PHP Method

    public function testFallbackClosure()
    {
        $closureCalled = false;
        $pm = PaletteManipulator::create()->addField('bar', 'foo', PaletteManipulator::POSITION_AFTER, function ($config, $action, $skipLegends) use(&$closureCalled) {
            $closureCalled = true;
            $this->assertInternalType('array', $config);
            $this->assertInternalType('array', $action);
            $this->assertInternalType('bool', $skipLegends);
            $this->assertArrayHasKey('fields', $action);
            $this->assertArrayHasKey('parents', $action);
            $this->assertArrayHasKey('position', $action);
        });
        $pm->applyToString('baz');
        $this->assertTrue($closureCalled);
    }