updated tests to include latest codeception verson

Author: DavertMik

.travis.yml

@@ -1,5 +1,8 @@
 language: php
 
+env:
+  CODECEPTION_VERSION: '2.4.x-dev'
+
 php:
   - 5.6
   - 7.0
@@ -12,4 +15,4 @@ before_script:
 
 script:
   - php robo.phar test cli
-  - php robo.phar test unit -g core
+  - php robo.phar test "unit -g core"

RoboFile.php

@@ -12,7 +12,7 @@ public function prepare()
         $config = json_decode(file_get_contents(__DIR__ . '/composer.json'), true);
 
         $config['name'] = 'codeception/phpunit-wrapper-test';
-        $config['require-dev']['codeception/codeception'] = '*';
+        $config['require-dev']['codeception/codeception'] = getenv('CODECEPTION_VERSION');
         $config['replace'] = ['codeception/phpunit-wrapper' => '*'];
 
         file_put_contents(__DIR__ . '/composer.json', json_encode($config));

composer.json

@@ -26,6 +26,6 @@
     },
     "require-dev": {
         "vlucas/phpdotenv": "^2.4",
-        "codeception/specify": "^1.0"
+        "codeception/specify": "*"
     }
 }