browser_dbg-javascript-tracer-values.js

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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 tracing argument values

"use strict";

add_task(async function testTracingValues() {

  await pushPref("devtools.debugger.features.javascript-tracing", true);

  // Cover tracing function argument values

  const jsCode = `function foo() { bar(1, ["array"], { attribute: 3 }, BigInt(4), Infinity, Symbol("6"), "7"); }; function bar(a, b, c) {}`;

  const dbg = await initDebuggerWithAbsoluteURL(

    "data:text/html," + encodeURIComponent(`<script>${jsCode}</script>`)

);

  await openContextMenuInDebugger(dbg, "trace");

  const toggled = waitForDispatch(

    dbg.store,

    "TOGGLE_JAVASCRIPT_TRACING_VALUES"

);

  selectContextMenuItem(dbg, `#debugger-trace-menu-item-log-values`);

  await toggled;

  ok(true, "Toggled the log values setting");

  await clickElement(dbg, "trace");

  const topLevelThreadActorID =

    dbg.toolbox.commands.targetCommand.targetFront.threadFront.actorID;

  info("Wait for tracing to be enabled");

  await waitForState(dbg, () => {

    return dbg.selectors.getIsThreadCurrentlyTracing(topLevelThreadActorID);

});

  invokeInTab("foo");

  await hasConsoleMessage(dbg, "λ foo()");

  await hasConsoleMessage(dbg, "λ bar");

  const { value } = await findConsoleMessage(dbg, "λ bar");

is(

    value,

    `⟶ interpreter λ bar(1, \nArray [ "array" ]\n, \nObject { attribute: 3 }\n, 4n, Infinity, Symbol("6"), "7")`,

    "The argument were printed for bar()"

);

  // Reset the log values setting

  Services.prefs.clearUserPref("devtools.debugger.javascript-tracing-values");

});