1 files changed, 102 insertions, 0 deletions
diff --git a/devtools/client/webconsole/test/browser/browser_webconsole_eval_error.js b/devtools/client/webconsole/test/browser/browser_webconsole_eval_error.js
new file mode 100644
index 0000000000..1083e31f00
--- /dev/null
+++ b/devtools/client/webconsole/test/browser/browser_webconsole_eval_error.js
@@ -0,0 +1,102 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Tests that throwing uncaught errors while doing console evaluations shows the expected
+// error message, with or without stack, in the console.
+
+"use strict";
+
+const TEST_URI =
+  "http://example.com/browser/devtools/client/webconsole/" +
+  "test/browser/test-eval-error.html";
+
+add_task(async function () {
+  const hud = await openNewTabAndConsole(TEST_URI);
+
+  execute(hud, "throwErrorObject()");
+  await checkMessageStack(hud, "ThrowErrorObject", [6, 1]);
+
+  execute(hud, "throwValue(40 + 2)");
+  await checkMessageStack(hud, "42", [14, 10, 1]);
+
+  await checkThrowingEvaluationWithStack(hud, `"bloop"`, "Uncaught bloop");
+  await checkThrowingEvaluationWithStack(hud, `""`, "Uncaught <empty string>");
+  await checkThrowingEvaluationWithStack(hud, `0`, "Uncaught 0");
+  await checkThrowingEvaluationWithStack(hud, `null`, "Uncaught null");
+  await checkThrowingEvaluationWithStack(
+    hud,
+    `undefined`,
+    "Uncaught undefined"
+  );
+  await checkThrowingEvaluationWithStack(hud, `false`, "Uncaught false");
+
+  await checkThrowingEvaluationWithStack(
+    hud,
+    `new Error("watermelon")`,
+    "Uncaught Error: watermelon"
+  );
+
+  await checkThrowingEvaluationWithStack(
+    hud,
+    `(err = new Error("lettuce"), err.name = "VegetableError", err)`,
+    "Uncaught VegetableError: lettuce"
+  );
+
+  await checkThrowingEvaluationWithStack(
+    hud,
+    `{ fav: "eggplant" }`,
+    `Uncaught Object { fav: "eggplant" }`
+  );
+  info("Check that object in errors can be expanded");
+  const rejectedObjectMessage = findErrorMessage(hud, "eggplant");
+  const oi = rejectedObjectMessage.querySelector(".tree");
+  ok(true, "The object was rendered in an ObjectInspector");
+
+  info("Expanding the object");
+  const onOiExpanded = waitFor(() => {
+    return oi.querySelectorAll(".node").length === 3;
+  });
+  oi.querySelector(".arrow").click();
+  await onOiExpanded;
+
+  ok(
+    oi.querySelector(".arrow").classList.contains("expanded"),
+    "Object expanded"
+  );
+
+  // The object inspector now looks like:
+  // {...}
+  // |  fav: "eggplant"
+  // |  <prototype>: Object { ... }
+
+  const oiNodes = oi.querySelectorAll(".node");
+  is(oiNodes.length, 3, "There is the expected number of nodes in the tree");
+
+  ok(oiNodes[0].textContent.includes(`Object { fav: "eggplant" }`));
+  ok(oiNodes[1].textContent.includes(`fav: "eggplant"`));
+  ok(oiNodes[2].textContent.includes(`<prototype>: Object { \u2026 }`));
+
+  execute(hud, `1 + @`);
+  const messageNode = await waitFor(() =>
+    findErrorMessage(hud, "illegal character U+0040")
+  );
+  is(
+    messageNode.querySelector(".frames"),
+    null,
+    "There's no stacktrace for a SyntaxError evaluation"
+  );
+});
+
+function checkThrowingEvaluationWithStack(hud, expression, expectedMessage) {
+  execute(
+    hud,
+    `
+    a = () => {throw ${expression}};
+    b =  () => a();
+    c =  () => b();
+    d =  () => c();
+    d();
+  `
+  );
+  return checkMessageStack(hud, expectedMessage, [2, 3, 4, 5, 6]);
+}