woocommerce/tests/unit-tests/attributes/functions.php

<?php

/**
 * Class Functions.
 * @package WooCommerce\Tests\Attributes
 * @since 3.2.0
 */
class WC_Tests_Attributes_Functions extends WC_Unit_Test_Case {

	/**
	 * Tests wc_get_attribute().
	 *
	 * @since 3.2.0
	 */
	public function test_wc_get_attribute() {
		$args = array(
			'name'         => 'Brand',
			'type'         => 'select',
			'order_by'     => 'name',
			'has_archives' => true,
		);

		$id = wc_create_attribute( $args );

		$attribute = (array) wc_get_attribute( $id );
		$expected  = array(
			'id'           => $id,
			'name'         => 'Brand',
			'slug'         => 'pa_brand',
			'type'         => 'select',
			'order_by'     => 'name',
			'has_archives' => true,
		);

		wc_delete_attribute( $id );

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

	/**
	 * Tests wc_create_attribute().
	 *
	 * @since 3.2.0
	 */
	public function test_wc_create_attribute() {
		// Test success.
		$id = wc_create_attribute( array( 'name' => 'Brand' ) );
		$this->assertInternalType( 'int', $id );

		// Test failures.
		$err = wc_create_attribute( array() );
		$this->assertEquals( 'missing_attribute_name', $err->get_error_code() );

		$err = wc_create_attribute( array( 'name' => 'This is a big name for a product attribute!' ) );
		$this->assertEquals( 'invalid_product_attribute_slug_too_long', $err->get_error_code() );

		$err = wc_create_attribute( array( 'name' => 'Cat' ) );
		$this->assertEquals( 'invalid_product_attribute_slug_reserved_name', $err->get_error_code() );

		register_taxonomy( 'pa_brand', array( 'product' ), array( 'labels' => array( 'name' => 'Brand' ) ) );
		$err = wc_create_attribute( array( 'name' => 'Brand' ) );
		$this->assertEquals( 'invalid_product_attribute_slug_already_exists', $err->get_error_code() );
		unregister_taxonomy( 'pa_brand' );

		wc_delete_attribute( $id );
	}

	/**
	 * Test that updating a global attribute will not modify local attribute data.
	 *
	 * @since 3.4.6
	 */
	public function test_wc_create_attribute_serialized_data() {
		global $wpdb;

		$global_attribute_data = WC_Helper_Product::create_attribute( 'test', array( 'Chicken', 'Nuggets' ) );

		$local_attribute = new WC_Product_Attribute();
		$local_attribute->set_id( 0 );
		$local_attribute->set_name( 'Test Local Attribute' );
		$local_attribute->set_options( array( 'Fish', 'Fingers', 's:7:"pa_test' ) );
		$local_attribute->set_position( 0 );
		$local_attribute->set_visible( true );
		$local_attribute->set_variation( false );

		$global_attribute = new WC_Product_Attribute();
		$global_attribute->set_id( $global_attribute_data['attribute_id'] );
		$global_attribute->set_name( $global_attribute_data['attribute_taxonomy'] );
		$global_attribute->set_options( $global_attribute_data['term_ids'] );
		$global_attribute->set_position( 1 );
		$global_attribute->set_visible( true );
		$global_attribute->set_variation( false );

		$product = new WC_Product_Simple();
		$product->set_attributes( array(
			'test-local' => $local_attribute,
			'test-global' => $global_attribute,
		) );
		$product->save();

		$meta_before_update = $wpdb->get_results( "SELECT meta_value FROM {$wpdb->postmeta} WHERE meta_key = '_product_attributes' AND post_id = " . $product->get_id(), ARRAY_A );
		$product_meta_before_update = @unserialize( $meta_before_update[0]['meta_value'] );
		$this->assertNotFalse( $product_meta_before_update, 'Meta should be an unserializable string' );

		// Update the global attribute.
		$updated_global_attribute_id = wc_create_attribute(
			array(
				'id' => $global_attribute_data['attribute_id'],
				'name' => 'Test Update',
				'old_slug' => 'test',
				'slug' => 'testupdate',
			)
		);
		$this->assertEquals( $updated_global_attribute_id, $global_attribute_data['attribute_id'] );

		// Changes to the global attribute should update in the product without causing side-effects.
		$meta_after_update = $wpdb->get_results( "SELECT meta_value FROM {$wpdb->postmeta} WHERE meta_key = '_product_attributes' AND post_id = " . $product->get_id(), ARRAY_A );
		$product_meta_after_update = @unserialize( $meta_after_update[0]['meta_value'] );
		$this->assertNotFalse( $product_meta_after_update, 'Meta should be an unserializable string' );

		// @todo check individual attribute values are good once meta after update is unserializable.
	}

	/**
	 * Tests wc_update_attribute().
	 *
	 * @since 3.2.0
	 */
	public function test_wc_update_attribute() {
		$args = array(
			'name'         => 'Brand',
			'type'         => 'select',
			'order_by'     => 'name',
			'has_archives' => true,
		);

		$id = wc_create_attribute( $args );

		$updated = array(
			'id'           => $id,
			'name'         => 'Brand',
			'slug'         => 'pa_brand',
			'type'         => 'select',
			'order_by'     => 'menu_order',
			'has_archives' => true,
		);

		wc_update_attribute( $id, $updated );

		$attribute = (array) wc_get_attribute( $id );

		wc_delete_attribute( $id );

		$this->assertEquals( $updated, $attribute );
	}

	/**
	 * Tests wc_delete_attribute().
	 *
	 * @since 3.2.0
	 */
	public function test_wc_delete_attribute() {
		// Success.
		$id     = wc_create_attribute( array( 'name' => 'Brand' ) );
		$result = wc_delete_attribute( $id );
		$this->assertTrue( $result );

		// Failure.
		$result = wc_delete_attribute( 9999999 );
		$this->assertFalse( $result );
	}
}