1 files changed, 11 insertions, 1 deletions
diff --git a/toolkit/mozapps/update/tests/unit_base_updater/marMissingUpdateSettings.js b/toolkit/mozapps/update/tests/unit_base_updater/marMissingUpdateSettings.js
index b0a0cfe657..fbb0e7c4cd 100644
--- a/toolkit/mozapps/update/tests/unit_base_updater/marMissingUpdateSettings.js
+++ b/toolkit/mozapps/update/tests/unit_base_updater/marMissingUpdateSettings.js
@@ -14,7 +14,17 @@ async function run_test() {
     return;
   }
   gTestFiles = gTestFilesCompleteSuccess;
-  gTestFiles[gTestFiles.length - 2].originalContents = null;
+  if (AppConstants.platform == "macosx") {
+    // On macOS, the update settings Framework already exists. Remove it.
+    const updateSettings = getTestFileByName(FILE_UPDATE_SETTINGS_FRAMEWORK);
+    updateSettings.removeOriginalFile = true;
+  } else {
+    // On non-macOS, the update settings INI will normally be written out with
+    // the contents specified by `originalContents`. Setting this to `null`
+    // prevents anything from being written out.
+    const updateSettings = getTestFileByName(FILE_UPDATE_SETTINGS_INI);
+    updateSettings.originalContents = null;
+  }
   gTestDirs = gTestDirsCompleteSuccess;
   setTestFilesAndDirsForFailure();
   await setupUpdaterTest(FILE_COMPLETE_MAR, false);