The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/toolkit/devtools/tests/unit/test_safeErrorString.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,57 @@
     1.4 +/* -*- Mode: js; js-indent-level: 2; -*- */
     1.5 +/* Any copyright is dedicated to the Public Domain.
     1.6 +   http://creativecommons.org/publicdomain/zero/1.0/ */
     1.7 +
     1.8 +// Test DevToolsUtils.safeErrorString
     1.9 +
    1.10 +function run_test() {
    1.11 +  test_with_error();
    1.12 +  test_with_tricky_error();
    1.13 +  test_with_string();
    1.14 +  test_with_thrower();
    1.15 +  test_with_psychotic();
    1.16 +}
    1.17 +
    1.18 +function test_with_error() {
    1.19 +  let s = DevToolsUtils.safeErrorString(new Error("foo bar"));
    1.20 +  // Got the message.
    1.21 +  do_check_true(s.contains("foo bar"));
    1.22 +  // Got the stack.
    1.23 +  do_check_true(s.contains("test_with_error"))
    1.24 +  do_check_true(s.contains("test_safeErrorString.js"));
    1.25 +  // Got the lineNumber and columnNumber.
    1.26 +  do_check_true(s.contains("Line"));
    1.27 +  do_check_true(s.contains("column"));
    1.28 +}
    1.29 +
    1.30 +function test_with_tricky_error() {
    1.31 +  let e = new Error("batman");
    1.32 +  e.stack = { toString: Object.create(null) };
    1.33 +  let s = DevToolsUtils.safeErrorString(e);
    1.34 +  // Still got the message, despite a bad stack property.
    1.35 +  do_check_true(s.contains("batman"));
    1.36 +}
    1.37 +
    1.38 +function test_with_string() {
    1.39 +  let s = DevToolsUtils.safeErrorString("not really an error");
    1.40 +  // Still get the message.
    1.41 +  do_check_true(s.contains("not really an error"));
    1.42 +}
    1.43 +
    1.44 +function test_with_thrower() {
    1.45 +  let s = DevToolsUtils.safeErrorString({
    1.46 +    toString: () => {
    1.47 +      throw new Error("Muahahaha");
    1.48 +    }
    1.49 +  });
    1.50 +  // Still don't fail, get string back.
    1.51 +  do_check_eq(typeof s, "string");
    1.52 +}
    1.53 +
    1.54 +function test_with_psychotic() {
    1.55 +  let s = DevToolsUtils.safeErrorString({
    1.56 +    toString: () => Object.create(null)
    1.57 +  });
    1.58 +  // Still get a string out, and no exceptions thrown
    1.59 +  do_check_eq(typeof s, "string");
    1.60 +}