public function testDefinesAMutationSchema()
{
$blogSchema = new Schema($this->blogQuery, $this->blogMutation);
$this->assertSame($this->blogMutation, $blogSchema->getMutationType());
/** @var \Fubhy\GraphQL\Type\Definition\FieldDefinition $writeMutation */
/** @var \Fubhy\GraphQL\Type\Definition\Types\ObjectType $writeMutationType */
$writeMutation = $this->blogMutation->getFields()['writeArticle'];
$writeMutationType = $writeMutation->getType();
$this->assertEquals('writeArticle', $writeMutation->getName());
$this->assertSame($this->blogArticle, $writeMutationType);
$this->assertEquals('Article', $writeMutationType->getName());
}
/**
* Extracts the root type of the operation from the schema.
*
* @param Schema $schema
* @param OperationDefinition $operation
*
* @return ObjectType
*
* @throws \Exception
*/
protected static function getOperationRootType(Schema $schema, OperationDefinition $operation)
{
switch ($operation->get('operation')) {
case 'query':
return $schema->getQueryType();
case 'mutation':
$mutationType = $schema->getMutationType();
if (!$mutationType) {
throw new \Exception('Schema is not configured for mutations.');
}
return $mutationType;
}
throw new \Exception('Can only execute queries and mutations.');
}
