woocommerce/tests/includes/code-hacking/code-hacker-test-hook.php

152 lines
4.4 KiB
PHP

<?php
use PHPUnit\Runner\BeforeTestHook;
use PHPUnit\Runner\AfterTestHook;
/**
* Helper to use the CodeHacker class in PHPUnit.
*
* How to use:
*
* 1. Add this to phpunit.xml:
*
* <extensions>
* <extension class="CodeHackerTestHook" file="path/to/code-hacker-test-hook.php" />
* </extensions>
*
* 2. Add the following to the test classes:
*
* public static function before_all($method_name) {
* CodeHacker::add_hack(...);
* //Register as many hacks as needed
* CodeHacker::enable();
* }
*
* $method_name is optional, 'before_all()' is also a valid method signature.
*
* You can also define a test-specific 'before_{$test_method_name}' hook.
* If both exist, first 'before_all' will be executed, then the test-specific one.
*
* 3. Additionally, you can register hacks via class/method annotations:
*
* /**
* * @hack HackClassName param1 param2
* * /
* class Some_Test
* {
* /**
* * @hack HackClassName param1 param2
* * /
* public function test_something() {
* }
* }
*
* If the class name ends with 'Hack' you can omit that suffix in the annotation (e.g. 'Foo' instead of 'FooHack').
* Parameters specified after the class name will be passed to the class constructor.
* Hacks defined as class annotations will be applied to all tests.
*/
final class CodeHackerTestHook implements BeforeTestHook, AfterTestHook {
public function __construct() {
include_once __DIR__ . '/code-hacker.php';
}
public function executeAfterTest( string $test, float $time ): void {
CodeHacker::restore();
}
public function executeBeforeTest( string $test ): void {
/**
* Possible formats of $test:
* TestClass::TestMethod
* TestClass::TestMethod with data set #...
* Warning
*/
$parts = explode( '::', $test );
if ( count( $parts ) < 2 ) {
return;
}
$class_name = $parts[0];
$method_name = explode( ' ', $parts[1] )[0];
// Make code hacker class and individual hack classes visible
foreach ( glob( __DIR__ . '/hacks/*.php' ) as $hack_class_file ) {
include_once $hack_class_file;
}
CodeHacker::clear_hacks();
$this->execute_before_methods( $class_name, $method_name );
$has_class_annotation_hacks = $this->add_hacks_from_annotations( new ReflectionClass( $class_name ) );
$has_method_annotaion_hacks = $this->add_hacks_from_annotations( new ReflectionMethod( $class_name, $method_name ) );
if ( $has_class_annotation_hacks || $has_method_annotaion_hacks ) {
CodeHacker::enable();
}
}
/**
* Apply hacks defined in @hack annotations.
*
* @param object $reflection_object The class or method reflection object whose doc comment will be parsed.
* @return bool True if at least one valid @hack annotation was found.
* @throws Exception
*/
private function add_hacks_from_annotations( $reflection_object ) {
$annotations = \PHPUnit\Util\Test::parseAnnotations( $reflection_object->getDocComment() );
$hacks_added = false;
foreach ( $annotations as $id => $annotation_instances ) {
if ( $id !== 'hack' ) {
continue;
}
foreach ( $annotation_instances as $annotation ) {
preg_match_all( '/"(?:\\\\.|[^\\\\"])*"|\S+/', $annotation, $matches );
$params = $matches[0];
$hack_class = array_shift( $params );
if ( ! class_exists( $hack_class ) ) {
$original_hack_class = $hack_class;
$hack_class .= 'Hack';
if ( ! class_exists( $hack_class ) ) {
throw new Exception( "Hack class '{$original_hack_class}' defined via annotation in {$class_name}::{$method_name} doesn't exist." );
}
}
CodeHacker::add_hack( new $hack_class( ...$params ) );
$hacks_added = true;
}
}
return $hacks_added;
}
/**
* Run the 'before_all' and 'before_{test_method_name}' methods in a class.
*
* @param string $class_name Test class name.
* @param string $method_name Test method name.
* @throws ReflectionException
*/
private function execute_before_methods( $class_name, $method_name ) {
$methods = array( 'before_all', "before_{$method_name}" );
$methods = array_filter(
$methods,
function( $item ) use ( $class_name ) {
return method_exists( $class_name, $item );
}
);
$rc = new ReflectionClass( $class_name );
foreach ( $methods as $method ) {
if ( 0 === $rc->getMethod( $method_name )->getNumberOfParameters() ) {
$class_name::$method();
} else {
$class_name::$method( $method_name );
}
}
}
}