Upgrade to Codeception 4.0 (#218)

* Use modular Codeception 4.0
* Moved bootstrap setting to top level

Because old location is deprecated
See https://bit.ly/2YrRzVc

* Use stringContainsString instead of contains

Because using assertContains() with string haystacks is deprecated and will not be supported in PHPUnit 9.

* Removed 5.4 and 5.5

.travis.yml

@@ -8,10 +8,6 @@ matrix:
     - php: "7.1"
     - php: "7.0"
     - php: "5.6"
-    - php: "5.5"
-      dist: trusty
-    - php: "5.4"
-      dist: trusty
 
 # faster builds on new travis setup not using sudo
 sudo: false

codeception.yml

@@ -1,11 +1,11 @@
 actor: Tester
+bootstrap: _bootstrap.php
 paths:
     tests: tests
     log: tests/_output
     data: tests/_data
     helpers: tests/_support
 settings:
-    bootstrap: _bootstrap.php
     memory_limit: 1024M
     colors: true
 modules:

composer.json

@@ -23,11 +23,13 @@
         "yiisoft/yii2-debug": "~2.1.0",
         "yiisoft/yii2-gii": "~2.1.0",
         "yiisoft/yii2-faker": "~2.0.0",
-
-        "codeception/base": "~2.3.0",
-        "codeception/verify": "~0.4.0",
+        "codeception/codeception": "4.0.x-dev | ^4.0",
+        "codeception/verify": "~0.5.0 || ~1.1.0",
         "codeception/specify": "~0.4.6",
-        "symfony/browser-kit": ">=2.7 <=4.2.4"
+        "symfony/browser-kit": ">=2.7 <=4.2.4",
+        "codeception/module-filesystem": "^1.0.0",
+        "codeception/module-yii2": "^1.0.0",
+        "codeception/module-asserts": "^1.0.0"
     },
     "config": {
         "process-timeout": 1800,

tests/unit/models/ContactFormTest.php

@@ -43,6 +43,6 @@ class ContactFormTest extends \Codeception\Test\Unit
         expect($emailMessage->getFrom())->hasKey('noreply@example.com');
         expect($emailMessage->getReplyTo())->hasKey('tester@example.com');
         expect($emailMessage->getSubject())->equals('very important letter subject');
-        expect($emailMessage->toString())->contains('body of current message');
+        expect($emailMessage->toString())->stringContainsString('body of current message');
     }
 }