Merge pull request #2 from Codeception/6.0

fixed for phpunit 6

Author: DavertMik

.gitignore

@@ -1,2 +1,3 @@
 .idea
+composer.lock
 vendor

src/Constraint/JsonType.php

@@ -39,7 +39,7 @@ protected function matches($jsonArray) : bool
             }
         } else {
             if ($matched === true) {
-                throw new \PHPUnit\Framework\ExpectationFailedException('Unexpectedly response matched: ' . json\encode($jsonArray));
+                throw new \PHPUnit\Framework\ExpectationFailedException('Unexpectedly response matched: ' . json_encode($jsonArray));
             }
         }
         return true;

src/shim.php

@@ -63,6 +63,9 @@ class_alias('PHP_CodeCoverage_Exception', 'SebastianBergmann\CodeCoverage\Except
         class_alias('PHP_Timer', 'SebastianBergmann\Timer\Timer');
     }
 
+    if (!class_exists('\PHPUnit\Framework\Constraint\LogicalNot') && class_exists('\PHPUnit\Framework\Constraint\Not')) {
+        class_alias('\PHPUnit\Framework\Constraint\Not', '\PHPUnit\Framework\Constraint\LogicalNot');
+    }
 }
 
 // @codingStandardsIgnoreEnd