adds FieldTransformerTest

Author: Cyril Mizzi

tests/Transformer/FieldTransformerTest.php

@@ -0,0 +1,67 @@
+<?php
+namespace StudioNet\GraphQL\Tests\Transformer;
+
+use StudioNet\GraphQL\Tests\Entity;
+use StudioNet\GraphQL\Tests\TestCase;
+use StudioNet\GraphQL\Support\Field;
+use StudioNet\GraphQL\Transformer\FieldTransformer;
+use GraphQL\Type\Definition\Type as GraphQLType;
+
+/**
+ * FieldTransformerTest
+ *
+ * @see TestCase
+ */
+class FieldTransformerTest extends TestCase {
+	/**
+	 * @override
+	 */
+	public function setUp() {
+		parent::setUp();
+
+		$this->app['graphql']->registerType('user', Entity\User::class);
+	}
+
+	/**
+	 * getQueryStub
+	 *
+	 * @return void
+	 */
+	public function getQueryStub() {
+		$stub = $this->getMockBuilder(Field::class)
+			->setMethods(['getRelatedType', 'getArguments'])
+			->getMock();
+
+		$stub->method('getRelatedType')->willReturn($this->app['graphql']->type('user'));
+		$stub->method('getArguments')->willReturn(['id' => GraphQLType::id()]);
+
+		return $stub;
+	}
+
+	/**
+	 * testSupports
+	 *
+	 * @return void
+	 */
+	public function testSupports() {
+		$transformer = $this->app->make(FieldTransformer::class);
+
+		$this->assertFalse($transformer->supports($this->app->make(Entity\User::class)));
+		$this->assertTrue($transformer->supports($this->getQueryStub()));
+	}
+
+	/**
+	 * testTransform
+	 *
+	 * @return void
+	 */
+	public function testTransform() {
+		$query = $this->getQueryStub();
+		$transformer = $this->app->make(FieldTransformer::class);
+		$object = $transformer->transform($query);
+
+		$this->assertArrayNotHasKey('resolve', $object);
+		$this->assertSame($this->app['graphql']->type('user'), $object['type']);
+		$this->assertSame(['id' => GraphQLType::id()], $object['args']);
+	}
+}