/* 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 . */
// Tests tracing only on next page load
"use strict";
add_task(async function testTracingOnNextLoad() {
await pushPref("devtools.debugger.features.javascript-tracing", true);
// Cover tracing function argument values
const jsCode = `function foo() {}; function bar() {}; foo(); dump("plop\\n")`;
const dbg = await initDebuggerWithAbsoluteURL(
"data:text/html," +
encodeURIComponent(``)
);
// This test covers the Web Console, whereas it is no longer the default output
await toggleJsTracerMenuItem(dbg, "#jstracer-menu-item-console");
let traceButton = dbg.toolbox.doc.getElementById("command-button-jstracer");
ok(
!traceButton.classList.contains("pending"),
"Before toggling the trace button, it has no particular state"
);
await toggleJsTracerMenuItem(dbg, "#jstracer-menu-item-next-load");
await toggleJsTracer(dbg.toolbox);
info(
"Wait for the split console to be automatically displayed when toggling this setting"
);
await dbg.toolbox.getPanelWhenReady("webconsole");
invokeInTab("bar");
// Let some time for the call to be traced
await wait(500);
is(
(await findConsoleMessages(dbg.toolbox, "λ bar")).length,
0,
"The code isn't logged as the tracer shouldn't be started yet"
);
// Wait for the trace button to be highlighted
await waitFor(() => {
return traceButton.classList.contains("pending");
}, "The tracer button is pending before reloading the page");
info("Add an iframe to trigger a target creation");
await SpecialPowers.spawn(gBrowser.selectedBrowser, [], async function () {
const iframe = content.document.createElement("iframe");
iframe.src = "data:text/html,iframe";
content.document.body.appendChild(iframe);
});
// Let some time to regress and start the tracer
await wait(500);
ok(
traceButton.classList.contains("pending"),
"verify that the tracer is still pending after the iframe creation"
);
// Reload the page to trigger the tracer
await reload(dbg);
info("Wait for tracing to be enabled after page reload");
await hasConsoleMessage(dbg, "Started tracing to Web Console");
is(
traceButton.getAttribute("aria-pressed"),
"true",
"The tracer button is now active after reload"
);
info("Wait for the split console to be displayed");
await dbg.toolbox.getPanelWhenReady("webconsole");
// Ensure that the very early code is traced
await hasConsoleMessage(dbg, "λ foo");
is(
(await findConsoleMessages(dbg.toolbox, "λ bar")).length,
0,
"The code ran before the reload isn't logged"
);
info("Toggle OFF the tracing");
await toggleJsTracer(dbg.toolbox);
await waitFor(() => {
return !traceButton.classList.contains("active");
}, "The tracer button is no longer active after stop request");
info("Toggle the setting back off");
await toggleJsTracerMenuItem(dbg, "#jstracer-menu-item-next-load");
await waitFor(() => {
traceButton = dbg.toolbox.doc.getElementById("command-button-jstracer");
return !traceButton.classList.contains("pending");
}, "The tracer button is no longer pending after toggling the setting");
// Reset the trace on next interaction setting
Services.prefs.clearUserPref(
"devtools.debugger.javascript-tracing-on-next-interaction"
);
});