Add Environment Name To Descriptor Unique Signatures (#5294)

* src/Codeception/Test/Descriptor.php: getTestSignatureUnique

- add the current environment name to unique signatures
- closes Codeception/phpunit-wrapper#4

* src/Codeception/Test/Descriptor.php: getTestSignatureUnique()

Issue: Codeception/phpunit-wrapper#4

- initialise $env and $example as empty strings
- keep empty string values for concatenation if there's no scenario or example

src/Codeception/Test/Descriptor.php

@@ -32,15 +32,22 @@ public static function getTestSignature(\PHPUnit\Framework\SelfDescribing $testC
      */
     public static function getTestSignatureUnique(\PHPUnit\Framework\SelfDescribing $testCase)
     {
-        $example = null;
+        $env     = '';
+        $example = '';
+
+        if (method_exists($testCase, 'getScenario')
+            && !empty($testCase->getScenario()->current('env'))
+        ) {
+            $env = ':' . $testCase->getScenario()->current('env');
+        }
 
         if (method_exists($testCase, 'getMetaData')
-            && $example = $testCase->getMetadata()->getCurrent('example')
+            && !empty($testCase->getMetadata()->getCurrent('example'))
         ) {
-            $example = ':' . substr(sha1(json_encode($example)), 0, 7);
+            $example = ':' . substr(sha1(json_encode($testCase->getMetadata()->getCurrent('example'))), 0, 7);
         }
 
-        return self::getTestSignature($testCase) . $example;
+        return self::getTestSignature($testCase) . $env . $example;
     }
 
     public static function getTestAsString(\PHPUnit\Framework\SelfDescribing $testCase)