The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/services/common/tests/unit/test_utils_stackTrace.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,33 @@
     1.4 +/* Any copyright is dedicated to the Public Domain.
     1.5 + * http://creativecommons.org/publicdomain/zero/1.0/ */
     1.6 +
     1.7 +_("Define some functions in well defined line positions for the test");
     1.8 +function foo(v) bar(v + 1); // line 2
     1.9 +function bar(v) baz(v + 1); // line 3
    1.10 +function baz(v) { throw new Error(v + 1); } // line 4
    1.11 +
    1.12 +_("Make sure lazy constructor calling/assignment works");
    1.13 +Cu.import("resource://services-common/utils.js");
    1.14 +
    1.15 +function run_test() {
    1.16 +  _("Make sure functions, arguments, files are pretty printed in the trace");
    1.17 +  let trace = "";
    1.18 +  try {
    1.19 +    foo(0);
    1.20 +  }
    1.21 +  catch(ex) {
    1.22 +    trace = CommonUtils.stackTrace(ex);
    1.23 +  }
    1.24 +  _("Got trace:", trace);
    1.25 +  do_check_neq(trace, "");
    1.26 +
    1.27 +  let bazPos = trace.indexOf("baz@test_utils_stackTrace.js:7");
    1.28 +  let barPos = trace.indexOf("bar@test_utils_stackTrace.js:6");
    1.29 +  let fooPos = trace.indexOf("foo@test_utils_stackTrace.js:5");
    1.30 +  _("String positions:", bazPos, barPos, fooPos);
    1.31 +
    1.32 +  _("Make sure the desired messages show up");
    1.33 +  do_check_true(bazPos >= 0);
    1.34 +  do_check_true(barPos > bazPos);
    1.35 +  do_check_true(fooPos > barPos);
    1.36 +}