diff --git a/test/smoke/runner.js b/test/smoke/runner.js
index 134edb81..295cf157 100644
--- a/test/smoke/runner.js
+++ b/test/smoke/runner.js
@@ -74,7 +74,7 @@ function runTest(type, browser) {
 		proc.on('error', reject);
 		proc.on('exit', (code) => {
 			if (code === 0) {
-				resolve();
+				resolve(undefined);
 			} else {
 				reject(code);
 			}
diff --git a/test/unit/all.js b/test/unit/all.js
index 49edd26d..4314e146 100644
--- a/test/unit/all.js
+++ b/test/unit/all.js
@@ -58,5 +58,6 @@ requirejs(
 	},
 	function (err) {
 		console.log(err);
+		process.exit(1);
 	}
 );
diff --git a/test/unit/setup.js b/test/unit/setup.js
index 1aeef022..13a598eb 100644
--- a/test/unit/setup.js
+++ b/test/unit/setup.js
@@ -9,6 +9,9 @@ define('vs/nls', [], {
 		return {
 			localize: function () {
 				return 'NO_LOCALIZATION_FOR_YOU';
+			},
+			getConfiguredDefaultLocale: function () {
+				return undefined;
 			}
 		};
 	},