From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Fri, 19 Apr 2024 02:47:55 +0200
Subject: Adding upstream version 124.0.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../test/mochitest/browser_dbg-pause-on-unload.js  | 87 ++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 devtools/client/debugger/test/mochitest/browser_dbg-pause-on-unload.js

(limited to 'devtools/client/debugger/test/mochitest/browser_dbg-pause-on-unload.js')

diff --git a/devtools/client/debugger/test/mochitest/browser_dbg-pause-on-unload.js b/devtools/client/debugger/test/mochitest/browser_dbg-pause-on-unload.js
new file mode 100644
index 0000000000..662bd8685b
--- /dev/null
+++ b/devtools/client/debugger/test/mochitest/browser_dbg-pause-on-unload.js
@@ -0,0 +1,87 @@
+/* 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 that the debugger works when pausing on unload.
+
+"use strict";
+
+const TEST_URL_1 =
+  "data:text/html," +
+  encodeURI(
+    `<script>window.addEventListener("unload", (event) => { debugger; });</script>`
+  );
+
+add_task(async function debuggerStatementOnUnload() {
+  const dbg = await initDebuggerWithAbsoluteURL(TEST_URL_1);
+
+  await addExpression(dbg, "event.type");
+  is(getWatchExpressionLabel(dbg, 1), "event.type");
+  is(getWatchExpressionValue(dbg, 1), "(unavailable)");
+
+  info("Reloading the page should trigger the debugger statement on unload");
+  const evaluated = waitForDispatch(dbg.store, "EVALUATE_EXPRESSIONS");
+  const onReload = reload(dbg);
+
+  await waitForPaused(dbg);
+  await waitForInlinePreviews(dbg);
+  assertPausedAtSourceAndLine(dbg, findSource(dbg, TEST_URL_1).id, 1, 56);
+
+  await evaluated;
+  is(
+    getWatchExpressionValue(dbg, 1),
+    `"unload"`,
+    "event.type evaluation does return the expected result"
+  );
+
+  // Verify that project search works while being paused on unload
+  await openProjectSearch(dbg);
+  await doProjectSearch(dbg, "unload", 1);
+
+  info("Resume execution and wait for the page to complete its reload");
+  await resume(dbg);
+  await onReload;
+});
+
+// Note that inline exception doesn't work on single line <script>
+const TEST_URL_2 =
+  "data:text/html," +
+  encodeURI(`<script>
+window.addEventListener("unload", () => { throw new Error("Exception on unload") });
+[].inlineException();
+</script>`);
+
+add_task(async function exceptionsOnUnload() {
+  const dbg = await initDebuggerWithAbsoluteURL(TEST_URL_2);
+
+  info("Enable pause on uncaught exception (but not for caught exception)");
+  await togglePauseOnExceptions(dbg, true, false);
+
+  await openProjectSearch(dbg);
+  await doProjectSearch(dbg, "exception", 1);
+  is(getExpandedResultsCount(dbg), 2);
+
+  info("Reloading the page should trigger the debugger statement on unload");
+  const onReload = reload(dbg);
+
+  // Cover catching exception on unload
+  await waitForPaused(dbg);
+  assertPausedAtSourceAndLine(dbg, findSource(dbg, TEST_URL_2).id, 2, 49);
+
+  // But also that previous inline exceptions are still visible
+  await assertInlineExceptionPreview(dbg, 3, 4, {
+    fields: [["<anonymous>", TEST_URL_2 + ":3"]],
+    result: "TypeError: [].inlineException is not a function",
+    expression: "inlineException",
+  });
+
+  // Verify that project search results are still displayed
+  is(getExpandedResultsCount(dbg), 2);
+
+  // Stop pausing on exception to prevent pausing on the inline exception on the load of the next page
+  await togglePauseOnExceptions(dbg, false, false);
+
+  info("Resume execution and wait for the page to complete its reload");
+  await resume(dbg);
+  await onReload;
+});
-- 
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