woocommerce/tests/unit-tests/api/shipping-methods.php

<?php
/**
 * Tests for the Shipping Methods REST API.
 *
 * @package WooCommerce\Tests\API
 * @since 3.0.0
 */

class Shipping_Methods extends WC_REST_Unit_Test_Case {

	/**
	 * Setup our test server, endpoints, and user info.
	 */
	public function setUp() {
		parent::setUp();
		$this->endpoint = new WC_REST_Shipping_Methods_Controller();
		$this->user = $this->factory->user->create( array(
			'role' => 'administrator',
		) );
	}

	/**
	 * Test route registration.
	 *
	 * @since 3.0.0
	 */
	public function test_register_routes() {
		$routes = $this->server->get_routes();
        $this->assertArrayHasKey( '/wc/v2/shipping_methods', $routes );
		$this->assertArrayHasKey( '/wc/v2/shipping_methods/(?P<id>[\w-]+)', $routes );
	}

	/**
	 * Test getting all shipping methods.
	 *
	 * @since 3.0.0
	 */
	public function test_get_shipping_methods() {
		wp_set_current_user( $this->user );

		$response = $this->server->dispatch( new WP_REST_Request( 'GET', '/wc/v2/shipping_methods' ) );
		$methods = $response->get_data();

		$this->assertEquals( 200, $response->get_status() );
        $this->assertContains( array(
			'id'          => 'free_shipping',
			'title'       => 'Free shipping',
			'description' => 'Free shipping is a special method which can be triggered with coupons and minimum spends.',
			'_links' => array(
				'self'       => array(
					array(
						'href' => rest_url( '/wc/v2/shipping_methods/free_shipping' ),
					),
				),
				'collection' => array(
					array(
						'href' => rest_url( '/wc/v2/shipping_methods' ),
					),
				),
			),
		), $methods );
	}

	/**
	 * Tests to make sure shipping methods cannot viewed without valid permissions.
	 *
	 * @since 3.0.0
	 */
	public function test_get_shipping_methods_without_permission() {
		wp_set_current_user( 0 );
		$response = $this->server->dispatch( new WP_REST_Request( 'GET', '/wc/v2/shipping_methods' ) );
		$this->assertEquals( 401, $response->get_status() );
	}

	/**
	 * Tests getting a single shipping method.
	 *
	 * @since 3.0.0
	 */
	public function test_get_shipping_method() {
		wp_set_current_user( $this->user );

		$response = $this->server->dispatch( new WP_REST_Request( 'GET', '/wc/v2/shipping_methods/local_pickup' ) );
		$method   = $response->get_data();

		$this->assertEquals( 200, $response->get_status() );
        $this->assertEquals( array(
            'id'          => 'local_pickup',
            'title'       => 'Local pickup',
            'description' => 'Allow customers to pick up orders themselves. By default, when using local pickup store base taxes will apply regardless of customer address.',
        ), $method );
	}

	/**
	 * Tests getting a single shipping method without the correct permissions.
	 *
	 * @since 3.0.0
	 */
	public function test_get_shipping_method_without_permission() {
		wp_set_current_user( 0 );

		$response = $this->server->dispatch( new WP_REST_Request( 'GET', '/wc/v2/shipping_methods/local_pickup' ) );
		$this->assertEquals( 401, $response->get_status() );
	}

	/**
	 * Tests getting a shipping method with an invalid ID.
	 *
	 * @since 3.0.0
	 */
	public function test_get_shipping_method_invalid_id() {
		wp_set_current_user( $this->user );
		$response = $this->server->dispatch( new WP_REST_Request( 'GET', '/wc/v2/shipping_methods/fake_method' ) );
		$this->assertEquals( 404, $response->get_status() );
	}

	/**
	 * Test the shipping method schema.
	 *
	 * @since 3.0.0
	 */
	public function test_shipping_method_schema() {
		wp_set_current_user( $this->user );

		$request = new WP_REST_Request( 'OPTIONS', '/wc/v2/shipping_methods' );
		$response = $this->server->dispatch( $request );
		$data = $response->get_data();
		$properties = $data['schema']['properties'];

		$this->assertEquals( 3, count( $properties ) );
		$this->assertArrayHasKey( 'id', $properties );
		$this->assertArrayHasKey( 'title', $properties );
		$this->assertArrayHasKey( 'description', $properties );
	}
}