1 files changed, 22 insertions, 0 deletions
diff --git a/devtools/client/debugger/src/utils/assert.js b/devtools/client/debugger/src/utils/assert.js
new file mode 100644
index 0000000000..2be4f3c7f1
--- /dev/null
+++ b/devtools/client/debugger/src/utils/assert.js
@@ -0,0 +1,22 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
+
+import { isNodeTest } from "./environment";
+
+let assert;
+// TODO: try to enable these assertions on mochitest by also enabling it on:
+//   import flags from "devtools/shared/flags";
+//   if (flags.testing)
+// Unfortunately it throws a lot on mochitests...
+
+if (isNodeTest()) {
+  assert = function (condition, message) {
+    if (!condition) {
+      throw new Error(`Assertion failure: ${message}`);
+    }
+  };
+} else {
+  assert = function () {};
+}
+export default assert;