Avoid parseDsn error

Author: o0h

.travis.yml

@@ -13,7 +13,7 @@ sudo: false
 
 env:
   matrix:
-    - DB=mysql db_dsn='mysql://travis@127.0.0.1/cakephp_test'
+    - DB=mysql db_user=root db_host=0.0.0.0 db_name=cakephp_test
 
   global:
     - DEFAULT=1 PREFER_LOWEST="--prefer-lowest"
@@ -23,10 +23,10 @@ matrix:
 
   include:
     - php: 7.3
-      env: PREFER_LOWEST=""
+      env: PREFER_LOWEST="" DB=mysql db_user=root db_host=0.0.0.0 db_name=cakephp_test
 
     - php: '7.4snapshot'
-      env: PREFER_LOWEST=""
+      env: PREFER_LOWEST="" DB=mysql db_user=root db_host=0.0.0.0 db_name=cakephp_test
 
     - php: 7.3
       env: PHPCS=1 DEFAULT=0 PREFER_LOWEST=" 

tests/bootstrap.php

@@ -27,4 +27,28 @@
 
     return;
 }
-require $root . '/vendor/cakephp/cakephp/tests/bootstrap.php';
+
+// With PHP7.3 & CakePHP 3.5.0, StaticConfigTrait::parseDsn causes the error in preg_match
+// (It has benn fixed in 3.5.1 https://github.com/cakephp/cakephp/commit/91475ccfa58948b2561ffd9631664c1c3edaf300)
+// In place of using `db_dsn` uri, set db config with array.
+if (getenv('DB') === 'mysql') {
+    $dbConfig = [
+        'className' => \Cake\Database\Connection::class,
+        'driver' => \Cake\Database\Driver\Mysql::class,
+        'host' => getenv('db_host'),
+        'username' => getenv('db_user'),
+        'database' => getenv('db_name'),
+        'url' => null,
+    ];
+    \Cake\Datasource\ConnectionManager::setConfig('test', $dbConfig);
+    \Cake\Datasource\ConnectionManager::setConfig('test_custom_i18n_datasource', $dbConfig);
+    try {
+        require $root . '/vendor/cakephp/cakephp/tests/bootstrap.php';
+    } catch (\BadMethodCallException $e) {
+        if (strpos($e->getMessage(), 'Cannot reconfigure existing key') !== 0) {
+            throw $e;
+        }
+    }
+} else {
+    require $root . '/vendor/cakephp/cakephp/tests/bootstrap.php';
+}