ApiPlatform\Core\Metadata\Resource\ResourceMetadata::getItemOperationAttribute PHP Method

    public function getItemOperationAttribute(string $operationName, string $key, $defaultValue = null, bool $resourceFallback = false)
    {
        return $this->getOperationAttribute($this->itemOperations, $operationName, $key, $defaultValue, $resourceFallback);
    }

 public function testValueObject()
 {
     $metadata = new ResourceMetadata('shortName', 'desc', 'http://example.com/foo', ['iop1' => ['foo' => 'a'], 'iop2' => ['bar' => 'b']], ['cop1' => ['foo' => 'c'], 'cop2' => ['bar' => 'd']], ['baz' => 'bar']);
     $this->assertEquals('shortName', $metadata->getShortName());
     $this->assertEquals('desc', $metadata->getDescription());
     $this->assertEquals('http://example.com/foo', $metadata->getIri());
     $this->assertEquals(['iop1' => ['foo' => 'a'], 'iop2' => ['bar' => 'b']], $metadata->getItemOperations());
     $this->assertEquals('a', $metadata->getItemOperationAttribute('iop1', 'foo', 'z', false));
     $this->assertEquals('bar', $metadata->getItemOperationAttribute('iop1', 'baz', 'z', true));
     $this->assertEquals('z', $metadata->getItemOperationAttribute('iop1', 'notExist', 'z', true));
     $this->assertEquals('z', $metadata->getItemOperationAttribute('notExist', 'notExist', 'z', true));
     $this->assertEquals(['cop1' => ['foo' => 'c'], 'cop2' => ['bar' => 'd']], $metadata->getCollectionOperations());
     $this->assertEquals('c', $metadata->getCollectionOperationAttribute('cop1', 'foo', 'z', false));
     $this->assertEquals('bar', $metadata->getCollectionOperationAttribute('cop1', 'baz', 'z', true));
     $this->assertEquals('z', $metadata->getCollectionOperationAttribute('cop1', 'notExist', 'z', true));
     $this->assertEquals('z', $metadata->getCollectionOperationAttribute('notExist', 'notExist', 'z', true));
     $this->assertEquals(['baz' => 'bar'], $metadata->getAttributes());
     $this->assertEquals('bar', $metadata->getAttribute('baz'));
     $this->assertEquals('z', $metadata->getAttribute('notExist', 'z'));
     $newMetadata = $metadata->withShortName('name');
     $this->assertNotSame($metadata, $newMetadata);
     $this->assertEquals('name', $newMetadata->getShortName());
     $newMetadata = $metadata->withDescription('description');
     $this->assertNotSame($metadata, $newMetadata);
     $this->assertEquals('description', $newMetadata->getDescription());
     $newMetadata = $metadata->withIri('foo:bar');
     $this->assertNotSame($metadata, $newMetadata);
     $this->assertEquals('foo:bar', $newMetadata->getIri());
     $newMetadata = $metadata->withItemOperations(['a' => ['b' => 'c']]);
     $this->assertNotSame($metadata, $newMetadata);
     $this->assertEquals(['a' => ['b' => 'c']], $newMetadata->getItemOperations());
     $newMetadata = $metadata->withCollectionOperations(['a' => ['b' => 'c']]);
     $this->assertNotSame($metadata, $newMetadata);
     $this->assertEquals(['a' => ['b' => 'c']], $newMetadata->getCollectionOperations());
     $newMetadata = $metadata->withAttributes(['a' => ['b' => 'c']]);
     $this->assertNotSame($metadata, $newMetadata);
     $this->assertEquals(['a' => ['b' => 'c']], $newMetadata->getAttributes());
 }