Try to get extra plugin to load from fixture class in addition to test case...

Try to get extra plugin to load from fixture class in addition to test case class in TestingEnvironmentManipulator, and add hacky fix for issue where Config will reload after construction, resetting list of activated plugins, after it is modified by the manipulator.

tests/PHPUnit/Framework/TestingEnvironmentManipulator.php

@@ -8,9 +8,12 @@
 
 namespace Piwik\Tests\Framework;
 
+use Interop\Container\ContainerInterface;
+use Piwik\Application\Environment;
 use Piwik\Application\EnvironmentManipulator;
 use Piwik\Application\Kernel\GlobalSettingsProvider;
 use Piwik\Application\Kernel\PluginList;
+use Piwik\Config;
 use Piwik\DbHelper;
 use Piwik\Option;
 use Piwik\Plugin;
@@ -155,7 +158,22 @@ class TestingEnvironmentManipulator implements EnvironmentManipulator
             }
         }
 
-        $diConfigs[] = array('observers.global' => \DI\add($this->globalObservers));
+        $plugins = $this->getPluginsToLoadDuringTest();
+        $diConfigs[] = array(
+            'observers.global' => \DI\add($this->globalObservers),
+
+            'Piwik\Config' => \DI\decorate(function (Config $config, ContainerInterface $c) use ($plugins) {
+                /** @var PluginList $pluginList */
+                $pluginList = $c->get('Piwik\Application\Kernel\PluginList');
+                $plugins = $pluginList->sortPlugins($plugins);
+
+                // set the plugins to load, has to be done to Config, since Config will reload files on construction.
+                // TODO: probably shouldn't need to do this, will wait until 3.0 to remove.
+                $config->Plugins['Plugins'] = $plugins;
+
+                return $config;
+            }),
+        );
 
         return $diConfigs;
     }
@@ -176,6 +194,7 @@ class TestingEnvironmentManipulator implements EnvironmentManipulator
             array(
                 Plugin::getPluginNameFromBacktrace(debug_backtrace()),
                 Plugin::getPluginNameFromNamespace($this->vars->testCaseClass),
+                Plugin::getPluginNameFromNamespace($this->vars->fixtureClass),
                 Plugin::getPluginNameFromNamespace(get_called_class())
             )
         );