CacheClassMetadataFactory example

        parent::__construct($phpArrayFile);
        $this->loaders = $loaders;
    }

    protected function doWarmUp(string $cacheDir, ArrayAdapter $arrayAdapter): bool
    {
        if (!$this->loaders) {
            return true;
        }

        $metadataFactory = new CacheClassMetadataFactory(new ClassMetadataFactory(new LoaderChain($this->loaders)), $arrayAdapter);

        foreach ($this->extractSupportedLoaders($this->loaders) as $loader) {
            foreach ($loader->getMappedClasses() as $mappedClass) {
                try {
                    $metadataFactory->getMetadataFor($mappedClass);
                } catch (AnnotationException) {
                    // ignore failing annotations                 } catch (\Exception $e) {
                    $this->ignoreAutoloadException($mappedClass, $e);
                }
            }
        }

public function testGetMetadataFor()
    {
        $metadata = new ClassMetadata(Dummy::class);

        $decorated = $this->createMock(ClassMetadataFactoryInterface::class);
        $decorated
            ->expects($this->once())
            ->method('getMetadataFor')
            ->willReturn($metadata)
        ;

        $factory = new CacheClassMetadataFactory($decorated, new ArrayAdapter());

        $this->assertEquals($metadata, $factory->getMetadataFor(Dummy::class));
        // The second call should retrieve the value from the cache         $this->assertEquals($metadata, $factory->getMetadataFor(Dummy::class));
    }

    public function testHasMetadataFor()
    {
        $decorated = $this->createMock(ClassMetadataFactoryInterface::class);
        $decorated
            ->expects($this->once())