1 files changed, 110 insertions, 0 deletions
diff --git a/devtools/client/debugger/test/mochitest/browser_dbg-pause-exceptions.js b/devtools/client/debugger/test/mochitest/browser_dbg-pause-exceptions.js
new file mode 100644
index 0000000000..ee3fd26602
--- /dev/null
+++ b/devtools/client/debugger/test/mochitest/browser_dbg-pause-exceptions.js
@@ -0,0 +1,110 @@
+/* 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/>. */
+
+/*
+  Tests Pausing on exception
+  1. skip an uncaught exception
+  2. pause on an uncaught exception
+  3. pause on a caught error
+  4. skip a caught error
+*/
+add_task(async function() {
+  const dbg = await initDebugger("doc-exceptions.html", "exceptions.js");
+  const source = findSource(dbg, "exceptions.js");
+
+  log("1. test skipping an uncaught exception");
+  await uncaughtException();
+  ok(!isPaused(dbg));
+
+  log("2. Test pausing on an uncaught exception");
+  await togglePauseOnExceptions(dbg, true, true);
+  uncaughtException();
+  await waitForPaused(dbg);
+  assertPausedLocation(dbg);
+  await resume(dbg);
+  await waitForActive(dbg);
+
+  log("2.b Test throwing the same uncaught exception pauses again");
+  await togglePauseOnExceptions(dbg, true, true);
+  uncaughtException();
+  await waitForPaused(dbg);
+  assertPausedLocation(dbg);
+  await resume(dbg);
+  await waitForActive(dbg);
+
+  log("3. Test pausing on a caught Error");
+  caughtException();
+  await waitForPaused(dbg);
+  assertPausedLocation(dbg);
+
+  log("3.b Test pausing in the catch statement");
+  await resume(dbg);
+  await waitForPaused(dbg);
+  assertPausedLocation(dbg);
+  await resume(dbg);
+
+  log("4. Test skipping a caught error");
+  await togglePauseOnExceptions(dbg, true, false);
+  caughtException();
+
+  log("4.b Test pausing in the catch statement");
+  await waitForPaused(dbg);
+  assertPausedLocation(dbg);
+  await resume(dbg);
+
+  await togglePauseOnExceptions(dbg, true, true);
+
+  log("5. Only pause once when throwing deep in the stack");
+  invokeInTab("deepError");
+  await waitForPaused(dbg);
+  assertPausedAtSourceAndLine(dbg, source.id, 16);
+  await resume(dbg);
+  await waitForPaused(dbg);
+  assertPausedAtSourceAndLine(dbg, source.id, 22);
+  await resume(dbg);
+
+  log("6. Only pause once on an exception when pausing in a finally block");
+  invokeInTab("deepErrorFinally");
+  await waitForPaused(dbg);
+  assertPausedAtSourceAndLine(dbg, source.id, 34);
+  await resume(dbg);
+  await waitForPaused(dbg);
+  assertPausedAtSourceAndLine(dbg, source.id, 31);
+  await resume(dbg);
+  await waitForPaused(dbg);
+  assertPausedAtSourceAndLine(dbg, source.id, 40);
+  await resume(dbg);
+
+  log("7. Only pause once on an exception when it is rethrown from a catch");
+  invokeInTab("deepErrorCatch");
+  await waitForPaused(dbg);
+  assertPausedAtSourceAndLine(dbg, source.id, 53);
+  await resume(dbg);
+  await waitForPaused(dbg);
+  assertPausedAtSourceAndLine(dbg, source.id, 49);
+  await resume(dbg);
+  await waitForPaused(dbg);
+  assertPausedAtSourceAndLine(dbg, source.id, 59);
+  await resume(dbg);
+
+  log("8. Pause on each exception thrown while unwinding");
+  invokeInTab("deepErrorThrowDifferent");
+  await waitForPaused(dbg);
+  assertPausedAtSourceAndLine(dbg, source.id, 71);
+  await resume(dbg);
+  await waitForPaused(dbg);
+  assertPausedAtSourceAndLine(dbg, source.id, 68);
+  await resume(dbg);
+  await waitForPaused(dbg);
+  assertPausedAtSourceAndLine(dbg, source.id, 77);
+  await resume(dbg);
+});
+
+function uncaughtException() {
+  return invokeInTab("uncaughtException").catch(() => {});
+}
+
+function caughtException() {
+  return invokeInTab("caughtException");
+}