browser_webconsole_optimized_out_vars.js

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/* Any copyright is dedicated to the Public Domain.

 * http://creativecommons.org/publicdomain/zero/1.0/ */

// Check that inspecting an optimized out variable works when execution is

// paused.

"use strict";

const TEST_URI =

  "http://example.com/browser/devtools/client/webconsole/" +

  "test/browser/" +

  "test-closure-optimized-out.html";

add_task(async function () {

  const breakpointLine = 18;

  const hud = await openNewTabAndConsole(TEST_URI);

  await openDebugger();

  const toolbox = hud.toolbox;

  const dbg = createDebuggerContext(toolbox);

  await selectSource(dbg, "test-closure-optimized-out.html");

  await addBreakpoint(dbg, "test-closure-optimized-out.html", breakpointLine);

  // Cause the debuggee to pause

  await pauseDebugger(dbg);

  await toolbox.selectTool("webconsole");

  // This is the meat of the test: evaluate the optimized out variable.

  info("Waiting for optimized out message");

  await executeAndWaitForResultMessage(hud, "upvar", "optimized out");

  ok(true, "Optimized out message logged");

  info("Open the debugger");

  await openDebugger();

  info("Resume");

  await resume(dbg);

  info("Remove the breakpoint");

  const source = findSource(dbg, "test-closure-optimized-out.html");

  await removeBreakpoint(dbg, source.id, breakpointLine);

});

async function pauseDebugger(dbg) {

  info("Waiting for debugger to pause");

  const onPaused = waitForPaused(dbg);

  SpecialPowers.spawn(gBrowser.selectedBrowser, [], async function () {

    const button = content.document.querySelector("button");

    button.click();

});

  await onPaused;