tenfourfox/devtools/server/tests/unit/test_breakpoint-03.js

/* Any copyright is dedicated to the Public Domain.
   http://creativecommons.org/publicdomain/zero/1.0/ */

/**
 * Check that setting a breakpoint in a line without code will skip forward.
 */

var gDebuggee;
var gClient;
var gThreadClient;
var gCallback;

function run_test()
{
  run_test_with_server(DebuggerServer, function () {
    run_test_with_server(WorkerDebuggerServer, do_test_finished);
  });
  do_test_pending();
};

function run_test_with_server(aServer, aCallback)
{
  gCallback = aCallback;
  initTestDebuggerServer(aServer);
  gDebuggee = addTestGlobal("test-stack", aServer);
  gClient = new DebuggerClient(aServer.connectPipe());
  gClient.connect(function () {
    attachTestTabAndResume(gClient,
                           "test-stack",
                           function (aResponse, aTabClient, aThreadClient) {
                             gThreadClient = aThreadClient;
                             test_skip_breakpoint();
                           });
  });
}

function test_skip_breakpoint()
{
  gThreadClient.addOneTimeListener("paused", function (aEvent, aPacket) {
    let location = { line: gDebuggee.line0 + 3 };
    let source = gThreadClient.source(aPacket.frame.where.source);

    source.setBreakpoint(location, function (aResponse, bpClient) {
      // Check that the breakpoint has properly skipped forward one line.
      do_check_true(!!aResponse.actualLocation);
      do_check_eq(aResponse.actualLocation.source.actor, source.actor);
      do_check_eq(aResponse.actualLocation.line, location.line + 1);

      gThreadClient.addOneTimeListener("paused", function (aEvent, aPacket) {
        // Check the return value.
        do_check_eq(aPacket.type, "paused");
        do_check_eq(aPacket.frame.where.source.actor, source.actor);
        do_check_eq(aPacket.frame.where.line, location.line + 1);
        do_check_eq(aPacket.why.type, "breakpoint");
        do_check_eq(aPacket.why.actors[0], bpClient.actor);
        // Check that the breakpoint worked.
        do_check_eq(gDebuggee.a, 1);
        do_check_eq(gDebuggee.b, undefined);

        // Remove the breakpoint.
        bpClient.remove(function (aResponse) {
          gThreadClient.resume(function () {
            gClient.close(gCallback);
          });
        });
      });

      // Continue until the breakpoint is hit.
      gThreadClient.resume();
    });
  });

  gDebuggee.eval("var line0 = Error().lineNumber;\n" +
                 "debugger;\n" +      // line0 + 1
                 "var a = 1;\n" +     // line0 + 2
                 "// A comment.\n" +  // line0 + 3
                 "var b = 2;");     // line0 + 4
}