Optimized co-phpunit do not broken in coroutine environment, when cases failed. (#1636)

* 测试中的出现异常不应该直接使用 exit 退出, 这样无法准确定位哪个测试没通过
* Optimized code.

Co-authored-by: 李铭昕 <[email protected]>

Author: nfangxu

co-phpunit

@@ -1,6 +1,8 @@
 #!/usr/bin/env php
 <?php
-\Swoole\Coroutine::create(function () {
+
+$code = 0;
+\Swoole\Coroutine::create(function () use (&$code) {
     if (version_compare('7.1.0', PHP_VERSION, '>')) {
         fwrite(
             STDERR,
@@ -58,9 +60,8 @@
     require PHPUNIT_COMPOSER_INSTALL;
 
     $code = PHPUnit\TextUI\Command::main(false);
-    if ($code > 0) {
-        exit($code);
-    }
-
-    swoole_event_exit();
 });
+
+swoole_event_wait();
+
+exit($code);