gecko/toolkit/devtools/server/tests/unit/test_breakpoint-16.js

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

/**
 * Check that we can set breakpoints in columns, not just lines.
 */

var gDebuggee;
var gClient;
var gThreadClient;

function run_test()
{
  initTestDebuggerServer();
  gDebuggee = addTestGlobal("test-breakpoints");
  gClient = new DebuggerClient(DebuggerServer.connectPipe());
  gClient.connect(function () {
    attachTestTabAndResume(gClient,
                           "test-breakpoints",
                           function (aResponse, aTabClient, aThreadClient) {
      gThreadClient = aThreadClient;
      test_column_breakpoint();
    });
  });
  do_test_pending();
}

function test_column_breakpoint()
{
  const location = {
    url: "https://example.com/foo.js",
    line: 1,
    column: 55
  };

  // Debugger statement
  gClient.addOneTimeListener("paused", function (aEvent, aPacket) {
    let timesBreakpointHit = 0;

    gThreadClient.setBreakpoint(location, function (aResponse, bpClient) {
      gThreadClient.addListener("paused", function _onPaused(aEvent, aPacket) {
        do_check_eq(aPacket.type, "paused");
        do_check_eq(aPacket.why.type, "breakpoint");
        do_check_eq(aPacket.why.actors[0], bpClient.actor);
        do_check_eq(aPacket.frame.where.url, location.url);
        do_check_eq(aPacket.frame.where.line, location.line);
        do_check_eq(aPacket.frame.where.column, location.column);

        do_check_eq(gDebuggee.acc, timesBreakpointHit);
        do_check_eq(aPacket.frame.environment.bindings.variables.i.value,
                    timesBreakpointHit);

        if (++timesBreakpointHit === 3) {
          gThreadClient.removeListener("paused", _onPaused);
          bpClient.remove(function (aResponse) {
            gThreadClient.resume(() => finishClient(gClient));
          });
        } else {
          gThreadClient.resume();
        }
      });

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

  });

  let code =
"(function () { debugger; this.acc = 0; for (let i = 0; i < 3; i++) this.acc++; }());";

  Components.utils.evalInSandbox(code, gDebuggee, "1.8",
                                 location.url, 1);
}