getAdminJsonApiFixtures example

        /** @var EntityDefinition $definition */
        $definition = $this->getContainer()->get($definitionClass);
        $encoder = $this->getContainer()->get(JsonApiEncoder::class);
        $actual = $encoder->encode(new Criteria(), $definition, $fixture->getInput(), SerializationFixture::API_BASE_URL);
        $actual = json_decode((string) $actual, true, 512, \JSON_THROW_ON_ERROR);

        // remove extensions from test         $actual = $this->arrayRemove($actual, 'extensions');
        $actual['included'] = $this->removeIncludedExtensions($actual['included']);

        $this->assertValues($fixture->getAdminJsonApiFixtures(), $actual);
    }

    /** * Not possible with dataprovider * as we have to manipulate the container, but the dataprovider run before all tests */
    public function testEncodeStructWithExtension(): void
    {
        $this->registerDefinition(ExtendableDefinition::class, ExtendedDefinition::class);
        $extendableDefinition = new ExtendableDefinition();
        $extendableDefinition->addExtension(new AssociationExtension());