test_breakpoint-04.js

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/* Any copyright is dedicated to the Public Domain.

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

"use strict";

/**

 * Check that setting a breakpoint in a line in a child script works.

*/

add_task(

  threadFrontTest(async ({ threadFront, client, debuggee }) => {

    const packet = await executeOnNextTickAndWaitForPause(

      () => evaluateTestCode(debuggee),

      threadFront

);

    const source = await getSourceById(threadFront, packet.frame.where.actor);

    const location = { sourceUrl: source.url, line: debuggee.line0 + 3 };

    //Pause at debugger statement.

    Assert.equal(packet.frame.where.line, debuggee.line0 + 5);

    Assert.equal(packet.why.type, "debuggerStatement");

    threadFront.setBreakpoint(location, {});

    await client.waitForRequestsToSettle();

    await resume(threadFront);

    const packet2 = await waitForPause(threadFront);

    // Check the return value.

    Assert.equal(packet2.frame.where.actor, source.actor);

    Assert.equal(packet2.frame.where.line, location.line);

    Assert.equal(packet2.why.type, "breakpoint");

    // Check that the breakpoint worked.

    Assert.equal(debuggee.a, 1);

    Assert.equal(debuggee.b, undefined);

    // Remove the breakpoint.

    threadFront.removeBreakpoint(location);

    await client.waitForRequestsToSettle();

    await resume(threadFront);

})

);

function evaluateTestCode(debuggee) {

  // prettier-ignore

  Cu.evalInSandbox(

    "var line0 = Error().lineNumber;\n" +

    "function foo() {\n" + // line0 + 1

    "  this.a = 1;\n" +    // line0 + 2

    "  this.b = 2;\n" +    // line0 + 3

    "}\n" +                // line0 + 4

    "debugger;\n" +        // line0 + 5

    "foo();\n",            // line0 + 6

    debuggee

);