1 files changed, 83 insertions, 0 deletions
diff --git a/devtools/client/webconsole/test/browser_webconsole_strict_mode_errors.js b/devtools/client/webconsole/test/browser_webconsole_strict_mode_errors.js
new file mode 100644
index 000000000..c8f2200f9
--- /dev/null
+++ b/devtools/client/webconsole/test/browser_webconsole_strict_mode_errors.js
@@ -0,0 +1,83 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Check that "use strict" JS errors generate errors, not warnings.
+
+"use strict";
+
+add_task(function* () {
+  // On e10s, the exception is triggered in child process
+  // and is ignored by test harness
+  if (!Services.appinfo.browserTabsRemoteAutostart) {
+    expectUncaughtException();
+  }
+  yield loadTab("data:text/html;charset=utf8,<script>'use strict';var arguments;</script>");
+
+  let hud = yield openConsole();
+
+  yield waitForMessages({
+    webconsole: hud,
+    messages: [
+      {
+        text: "SyntaxError: 'arguments' can't be defined or assigned to in strict mode code",
+        category: CATEGORY_JS,
+        severity: SEVERITY_ERROR,
+      },
+    ],
+  });
+
+  if (!Services.appinfo.browserTabsRemoteAutostart) {
+    expectUncaughtException();
+  }
+  BrowserTestUtils.loadURI(gBrowser.selectedBrowser, "data:text/html;charset="
+    + "utf8,<script>'use strict';function f(a, a) {};</script>");
+
+  yield waitForMessages({
+    webconsole: hud,
+    messages: [
+      {
+        text: "SyntaxError: duplicate formal argument a",
+        category: CATEGORY_JS,
+        severity: SEVERITY_ERROR,
+      },
+    ],
+  });
+
+  if (!Services.appinfo.browserTabsRemoteAutostart) {
+    expectUncaughtException();
+  }
+  BrowserTestUtils.loadURI(gBrowser.selectedBrowser, "data:text/html;charset="
+    + "utf8,<script>'use strict';var o = {get p() {}};o.p = 1;</script>");
+
+  yield waitForMessages({
+    webconsole: hud,
+    messages: [
+      {
+        text: "TypeError: setting a property that has only a getter",
+        category: CATEGORY_JS,
+        severity: SEVERITY_ERROR,
+      },
+    ],
+  });
+
+  if (!Services.appinfo.browserTabsRemoteAutostart) {
+    expectUncaughtException();
+  }
+  BrowserTestUtils.loadURI(gBrowser.selectedBrowser,
+    "data:text/html;charset=utf8,<script>'use strict';v = 1;</script>");
+
+  yield waitForMessages({
+    webconsole: hud,
+    messages: [
+      {
+        text: "ReferenceError: assignment to undeclared variable v",
+        category: CATEGORY_JS,
+        severity: SEVERITY_ERROR,
+      },
+    ],
+  });
+
+  hud = null;
+});