Scalr\Tests\Functional\Api\V2\SpecSchema\SpecManager::getDefinitions PHP Method

    public function getDefinitions($filter = null)
    {
        $definitions = $this->getPath('definitions');
        if (!is_null($filter)) {
            $definitions = array_filter($definitions, function ($k) use($filter) {
                return !preg_match($filter, $k);
            }, ARRAY_FILTER_USE_KEY);
        }
        foreach ($definitions as $name => $definition) {
            $definitions[$name] = $this->resolveReferences($definition, null, $name);
        }
        return $definitions;
    }

 /**
  * Check readOnly vs required Object properties
  *
  * @test
  * @dataProvider specksProvider
  *
  * @param string $version api version
  * @param string $provider specifications type
  */
 public function testSpecks($version, $provider)
 {
     $specs = new SpecManager($version, $provider);
     $definitions = $specs->getDefinitions('#^Api.*|Response$#');
     $this->assertNotEmpty($definitions);
     /* @var  $definition ObjectEntity */
     foreach ($definitions as $name => $definition) {
         $intersectProp = array_intersect($definition->required, $definition->readOnly);
         $this->assertEmpty($intersectProp, sprintf('The property %s is mutually exclusive. should be required or read-only. Object %s in %s spec', implode(', ', $intersectProp), $name, $provider));
         //discriminator must be in the required property list
         if (!empty($definition->discriminator)) {
             $this->assertTrue(in_array($definition->discriminator, $definition->required), sprintf('Property discriminator must be required Object %s in %s spec', $name, $provider));
         }
     }
 }