Adds TaxRate as factory class. (#1)

* Adds TaxRate as factory class.

* Update README.md

* Update src/Factories/TaxRate.php

Co-authored-by: ken-ll <67947342+ken-ll@users.noreply.github.com>

Co-authored-by: ken-ll <67947342+ken-ll@users.noreply.github.com>

Author: NielsdeBlaauw

README.md

@@ -158,6 +158,29 @@ $this->factory()->product->create_and_get(
 );
 ```
 
+### Tax rates
+
+You can access the order factory by using `$this->factory()->tax_rate` within a WooCommerce integration test. 
+
+The main method you'll use is `create_and_get( $args )`. The input you can give to an order are the same as you can give to the product creation API endpoint. 
+
+`create_and_get($args)` returns an array, as tax rates have no data class/model within WooCommerce.
+
+See https://woocommerce.github.io/woocommerce-rest-api-docs/#create-a-tax-rate
+
+Example:
+
+```php
+$this->factory()->tax_rate->create_and_get(
+    array(
+        'country'=>'NL',
+        'rate'=> '21',
+        'name'=>'BTW hoog tarief',
+        'shipping'=>false,
+    )
+);
+```
+
 ## Testcases
 For most testcases you will want to use `\LevelLevel\WPBrowserWooCommerce\WCTestCase`
 
@@ -198,4 +221,4 @@ The main focus is on implementing more factories for other WooCommerce objects s
 After this, focus might shift to popular extensions for WooCommerce, such as Subscriptions or Bookings.
 
 ### Contributing
-Feel free to open issues or create pull requests if you feel something is missing or working incorrectly.
+Feel free to open issues or create pull requests if you feel something is missing or working incorrectly.

src/Factories/TaxRate.php

@@ -0,0 +1,102 @@
+<?php
+
+namespace LevelLevel\WPBrowserWooCommerce\Factories;
+
+use Exception;
+use TypeError;
+use WP_UnitTest_Factory_For_Thing;
+
+class TaxRate extends WP_UnitTest_Factory_For_Thing {
+	/**
+	 * Creates a new tax rate. Using the API method.
+	 *
+	 * @param array $args See https://woocommerce.github.io/woocommerce-rest-api-docs/#create-a-tax-rate
+	 *
+	 * @return int
+	 */
+	public function create_object( $args ) {
+		$this->api_call_setup();
+
+		$request = new \WP_REST_Request( 'post', '/wc/v3/taxes' );
+		$request->add_header( 'Content-Type', 'application/json' );
+
+		$request->set_body( json_encode( $args ) ); //phpcs:ignore
+		$response = rest_do_request( $request );
+
+		$this->api_call_teardown();
+
+		if ( $response->is_error() ) {
+			throw new Exception( $response->get_data()['message'] );
+		}
+		return $response->get_data()['id'];
+	}
+
+	/**
+	 * Updates a tax rate.
+	 *
+	 * @param int $object Tax rate ID.
+	 * @param array $args See https://woocommerce.github.io/woocommerce-rest-api-docs/#update-a-tax-rate
+	 *
+	 * @return int
+	 */
+	public function update_object( $object, $fields ) {
+		if ( ! is_int( $object ) ) {
+			throw new TypeError( '$object must be an int' );
+		}
+		$this->api_call_setup();
+
+		$request = new \WP_REST_Request( 'put', '/wc/v3/taxes/' . $object );
+		$request->add_header( 'Content-Type', 'application/json' );
+
+		$request->set_body( json_encode( $fields ) ); //phpcs:ignore
+		$response = rest_do_request( $request );
+
+		$this->api_call_teardown();
+
+		if ( $response->is_error() ) {
+			throw new Exception( $response->get_data()['message'] );
+		}
+
+		return $response->get_data()['id'];
+	}
+
+	/**
+	 * Gets a woocommerce tax rate.
+	 *
+	 * @param int $object_id The tax rate ID.
+	 *
+	 * @return array WooCommerce has no TaxRate object, so an unformatted array is given.
+	 */
+	public function get_object_by_id( $object_id ) {
+		if ( ! is_int( $object_id ) ) {
+			throw new TypeError( '$object_id must be an int' );
+		}
+		$this->api_call_setup();
+
+		$request = new \WP_REST_Request( 'get', '/wc/v3/taxes/' . $object_id );
+		$request->add_header( 'Content-Type', 'application/json' );
+
+		$response = rest_do_request( $request );
+
+		$this->api_call_teardown();
+
+		if ( $response->is_error() ) {
+			throw new Exception( $response->get_data()['message'] );
+		}
+
+		return $response->get_data();
+	}
+
+	private function api_call_setup() {
+		$this->old_user = wp_get_current_user();
+
+		// Setup the administrator user so we can actually retrieve the order.
+		$user = new \WP_User( 1 );
+		wp_set_current_user( $user );
+	}
+
+
+	private function api_call_teardown() {
+		wp_set_current_user( $this->old_user );
+	}
+}

src/WC_UnitTest_Factory.php

@@ -4,7 +4,7 @@
 
 use LevelLevel\WPBrowserWooCommerce\Factories\Product;
 use LevelLevel\WPBrowserWooCommerce\Factories\Order;
-
+use LevelLevel\WPBrowserWooCommerce\Factories\TaxRate;
 use WP_UnitTest_Factory;
 
 class WC_UnitTest_Factory extends WP_UnitTest_Factory {
@@ -18,9 +18,15 @@ class WC_UnitTest_Factory extends WP_UnitTest_Factory {
 	 */
 	public $order;
 
+	/**
+	 * @var TaxRate
+	 */
+	public $tax_rate;
+
 	public function __construct() {
 		parent::__construct();
 		$this->product = new Product( $this );
 		$this->order   = new Order( $this );
+		$this->tax_rate   = new TaxRate( $this );
 	}
 }