refs #5940 this might fix the integration tests. Took me a long time to figure...

refs #5940 this might fix the integration tests. Took me a long time to figure out what is going on. We should reset all the caches at least before each class otherwise the tests are no longer atomic and therefore worthless. This test was working when executing only this test but not when executing all tests

core/Cache/StaticCache.php

@@ -69,6 +69,15 @@ class StaticCache
         unset(self::$staticCache[$this->cacheKey]);
     }
 
+    /**
+     * Reset the stored content of the current cache key.
+     * @ignore
+     */
+    public static function clearAll()
+    {
+        self::$staticCache = array();
+    }
+
     /**
      * Set (overwrite) any content related to the current set cache key.
      * @param $content

plugins/Insights/tests/Integration/ApiTest.php

@@ -8,11 +8,14 @@
 
 namespace Piwik\Plugins\Insights\tests;
 use Piwik\API\Request as ApiRequest;
+use Piwik\Cache\PluginAwareStaticCache;
+use Piwik\Cache\StaticCache;
 use Piwik\DataTable;
 use Piwik\DataTable\Row;
 use Piwik\Plugins\Insights\API;
 use Piwik\Plugins\Insights\tests\Fixtures\SomeVisitsDifferentPathsOnTwoDays;
-use Piwik\Tests\Impl\SystemTestCase;
+use Piwik\Tests\Impl\IntegrationTestCase;
+use Piwik\Tracker\Cache;
 use Piwik\Translate;
 
 /**
@@ -21,7 +24,7 @@ use Piwik\Translate;
  * @group Plugins
  * @group Plugins
  */
-class ApiTest extends SystemTestCase
+class ApiTest extends IntegrationTestCase
 {
     /**
      * @var SomeVisitsDifferentPathsOnTwoDays
@@ -38,6 +41,9 @@ class ApiTest extends SystemTestCase
     {
         parent::setUp();
 
+        StaticCache::clearAll();
+        PluginAwareStaticCache::clearAll();
+
         Translate::reloadLanguage('en');
         $this->api = API::getInstance();
     }