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Bug 557591 - Add tests for Utils.stackTrace.

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This commit is contained in:
Edward Lee 2010-05-17 14:17:32 -07:00
parent bd4a46d064
commit 15d82d14a7
1 changed files with 32 additions and 0 deletions
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32
services/sync/tests/unit/test_utils_stackTrace.js Normal file
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_("Define some functions in well defined line positions for the test");
function foo(v) bar(v + 1); // line 2
function bar(v) baz(v + 1); // line 3
function baz(v) { throw new Error(v + 1); } // line 4
_("Make sure lazy constructor calling/assignment works");
Cu.import("resource://weave/util.js");
function run_test() {
_("Make sure functions, arguments, files are pretty printed in the trace");
let trace = "";
try {
foo(0);
}
catch(ex) {
trace = Utils.stackTrace(ex);
}
_("Got trace:", trace);
do_check_neq(trace, "");
let errorPos = trace.indexOf('Error("3")@:0');
let bazPos = trace.indexOf("baz(2)@test_utils_stackTrace.js:4");
let barPos = trace.indexOf("bar(1)@test_utils_stackTrace.js:3");
let fooPos = trace.indexOf("foo(0)@test_utils_stackTrace.js:2");
_("String positions:", errorPos, bazPos, barPos, fooPos);
_("Make sure the desired messages show up");
do_check_true(errorPos >= 0);
do_check_true(bazPos > errorPos);
do_check_true(barPos > bazPos);
do_check_true(fooPos > barPos);
}