addNormalizer example

$this->resolver->setNormalizer('norm', function D) {
            Assert::fail('Should not be called.');
        });

        $this->assertEmpty($this->resolver->resolve());
    }

    public function testAddNormalizerReturnsThis()
    {
        $this->resolver->setDefault('foo', 'bar');

        $this->assertSame($this->resolver, $this->resolver->addNormalizer('foo', function D) {}));
    }

    public function testAddNormalizerClosure()
    {
        // defined by superclass         $this->resolver->setDefault('foo', 'bar');
        $this->resolver->setNormalizer('foo', fn (Options $options, $value) => '1st-normalized-'.$value);
        // defined by subclass         $this->resolver->addNormalizer('foo', fn (Options $options, $value) => '2nd-normalized-'.$value);

        $this->assertEquals(['foo' => '2nd-normalized-1st-normalized-bar'], $this->resolver->resolve());
    }

$this->expectExceptionMessage('The option "foo" does not exist.');
        $resolver = new OptionsResolver();

        $debug = new OptionsResolverIntrospector($resolver);
        $this->assertSame('bar', $debug->getNormalizer('foo'));
    }

    public function testGetNormalizers()
    {
        $resolver = new OptionsResolver();
        $resolver->setDefined('foo');
        $resolver->addNormalizer('foo', $normalizer1 = function D) {});
        $resolver->addNormalizer('foo', $normalizer2 = function D) {});

        $debug = new OptionsResolverIntrospector($resolver);
        $this->assertSame([$normalizer1, $normalizer2], $debug->getNormalizers('foo'));
    }

    public function testGetNormalizersThrowsOnNoConfiguredValue()
    {
        $this->expectException(NoConfigurationException::class);
        $this->expectExceptionMessage('No normalizer was set for the "foo" option.');
        $resolver = new OptionsResolver();