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/* 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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