wp-graphql-woocommerce/tests/wpunit/VariationAttributeQueriesTest.php

<?php

class VariationAttributeQueriesTest extends \Codeception\TestCase\WPTestCase {
    private $shop_manager;
    private $customer;
    private $product_id;
    private $variation_id;

    public function setUp() {
        // before
        parent::setUp();

        $this->shop_manager   = $this->factory->user->create( array( 'role' => 'shop_manager' ) );
        $this->customer       = $this->factory->user->create( array( 'role' => 'customer' ) );
        $this->product        = $this->getModule('\Helper\Wpunit')->product();
        $this->variation      = $this->getModule('\Helper\Wpunit')->product_variation();
		$ids                  = $this->variation->create(  $this->product->create_variable() );
        $this->product_id     = $ids['product'];
        $this->variation_id   = $ids['variations'][0];
    }

    public function tearDown() {
        // your tear down methods here

        // then
        parent::tearDown();
    }

    // tests
    public function testProductVariationToVariationAttributeQuery() {
        $query = '
            query fromVariationQuery( $id: ID! ) {
                productVariation( id: $id ) {
                    id
                    attributes {
                        nodes {
                            id
                            attributeId
                            name
                            value
                        }
                    }
                }
            }
        ';

        /**
		 * Assertion One
		 *
		 * test query and results
		 */
		$variables = array( 'id' => $this->variation->to_relay_id( $this->variation_id ) );
		$actual    = graphql( array( 'query' => $query, 'variables' => $variables ) );
		$expected  = array(
            'data' => array(
                'productVariation' => array(
                    'id'         => $this->variation->to_relay_id( $this->variation_id ),
                    'attributes' => $this->variation->print_attributes( $this->variation_id ),
                ),
            ),
        );

		// use --debug flag to view.
		codecept_debug( $actual );

		$this->assertEquals( $expected, $actual );
    }

    public function testProductToVariationAttributeQuery() {
        $query = '
            query ( $id: ID! ) {
                product( id: $id ) {
                    ... on VariableProduct {
                        id
                        defaultAttributes {
                            nodes {
                                id
                                attributeId
                                name
                                value
                            }
                        }
                    }
                }
            }
        ';

        /**
		 * Assertion One
		 *
		 * test query and results
		 */
		$variables = array( 'id' => $this->product->to_relay_id( $this->product_id ) );
		$actual    = graphql( array( 'query' => $query, 'variables' => $variables ) );
        $expected  = array(
            'data' => array(
                'product' => array(
                    'id'                => $this->product->to_relay_id( $this->product_id ),
                    'defaultAttributes' => $this->variation->print_attributes( $this->product_id, 'PRODUCT' ),
                ),
            ),
        );

		// use --debug flag to view.
		codecept_debug( $actual );

		$this->assertEquals( $expected, $actual );
    }

}