Force Releeph to be installed during unit tests

Summary: Fixes failure in "testApplicationInstalled" if this flag is off (as it is by default).

Test Plan: Ran "testApplicationsInstalled" with this flag off.

Reviewers: garoevans, btrahan

Reviewed By: btrahan

CC: aran

Differential Revision: https://secure.phabricator.com/D5979

src/infrastructure/testing/PhabricatorTestCase.php

@@ -96,6 +96,9 @@ abstract class PhabricatorTestCase extends ArcanistPhutilTestCase {
     $this->env->overrideEnvConfig(
       'phabricator.uninstalled-applications',
       array());
+
+    // TODO: Remove this when we remove "releeph.installed".
+    $this->env->overrideEnvConfig('releeph.installed', true);
   }
 
   protected function didRunTests() {