59 lines
1.6 KiB
JavaScript
59 lines
1.6 KiB
JavaScript
/* -*- js-indent-level: 2; indent-tabs-mode: nil -*- */
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/* Any copyright is dedicated to the Public Domain.
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http://creativecommons.org/publicdomain/zero/1.0/ */
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// Test DevToolsUtils.safeErrorString
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function run_test() {
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test_with_error();
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test_with_tricky_error();
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test_with_string();
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test_with_thrower();
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test_with_psychotic();
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}
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function test_with_error() {
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let s = DevToolsUtils.safeErrorString(new Error("foo bar"));
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// Got the message.
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do_check_true(s.includes("foo bar"));
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// Got the stack.
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do_check_true(s.includes("test_with_error"));
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do_check_true(s.includes("test_safeErrorString.js"));
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// Got the lineNumber and columnNumber.
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do_check_true(s.includes("Line"));
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do_check_true(s.includes("column"));
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}
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function test_with_tricky_error() {
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let e = new Error("batman");
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e.stack = { toString: Object.create(null) };
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let s = DevToolsUtils.safeErrorString(e);
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// Still got the message, despite a bad stack property.
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do_check_true(s.includes("batman"));
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}
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function test_with_string() {
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let s = DevToolsUtils.safeErrorString("not really an error");
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// Still get the message.
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do_check_true(s.includes("not really an error"));
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}
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function test_with_thrower() {
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let s = DevToolsUtils.safeErrorString({
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toString: () => {
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throw new Error("Muahahaha");
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}
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});
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// Still don't fail, get string back.
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do_check_eq(typeof s, "string");
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}
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function test_with_psychotic() {
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let s = DevToolsUtils.safeErrorString({
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toString: () => Object.create(null)
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});
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// Still get a string out, and no exceptions thrown
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do_check_eq(typeof s, "string");
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do_check_eq(s, "[object Object]");
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}
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