trait HookOrderTestTrait

trait HookOrderTestTrait {
    
    /**
     * Asserts that two lists of call strings are the same.
     *
     * It is meant for strings produced with __FUNCTION__ or __METHOD__.
     *
     * The assertion fails exactly when a regular ->assertSame() would fail, but
     * it provides a more useful output on failure.
     *
     * @param list<string> $expected
     *   Expected list of strings.
     * @param list<string> $actual
     *   Actual list of strings.
     * @param string $message
     *   Message to pass to ->assertSame().
     */
    protected function assertSameCallList(array $expected, array $actual, string $message = '') : void {
        // Format without the numeric array keys, but in a way that can be easily
        // copied into the test.
        $format = function (array $strings) : string {
            if (!$strings) {
                return '[]';
            }
            $parts = array_map(static function (string $call_string) {
                if (preg_match('@^(\\w+\\\\)*(\\w+)::(\\w+)@', $call_string, $matches)) {
                    [
                        ,
                        ,
                        $class_shortname,
                        $method,
                    ] = $matches;
                    return $class_shortname . '::class . ' . var_export('::' . $method, TRUE);
                }
                return var_export($call_string, TRUE);
            }, $strings);
            return "[\n  " . implode(",\n  ", $parts) . ",\n]";
        };
        $this->assertSame($format($expected), $format($actual), $message);
        // Finally, assert that array keys and the full class names are really the
        // same, in a way that provides useful output on failure.
        $this->assertSame($expected, $actual, $message);
    }

}