1 files changed, 21 insertions, 0 deletions
diff --git a/dom/base/test/jsmodules/test_importResolveFailed.html b/dom/base/test/jsmodules/test_importResolveFailed.html
new file mode 100644
index 0000000000..559de77dcd
--- /dev/null
+++ b/dom/base/test/jsmodules/test_importResolveFailed.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<meta charset=utf-8>
+<title>Test error thrown when an import cannot be resolved</title>
+<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+<script>
+  var hadTypeError = false;
+
+  SimpleTest.waitForExplicitFinish();
+  window.onerror = handleError;
+
+  function handleError(message, url, line, column, error) {
+    hadTypeError = error instanceof TypeError;
+  }
+
+  function testError() {
+    ok(hadTypeError, 'Check that a TypeError was thrown');
+    SimpleTest.finish();
+  }
+</script>
+<script type="module" src="module_badImport.js"></script>
+<body onload='testError()'></body>