136 lines
3.1 KiB
JavaScript
136 lines
3.1 KiB
JavaScript
/**
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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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*
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* This is a shim for the W3C testharness.js, mapping those of
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* its functions that we need to the testing/xpcshell/head.js API.
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* See <http://www.w3.org/2008/webapps/wiki/Harness> for documentation.
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* This shim does some tests a little differently than the W3C test
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* harness; equality comparisons, especially, are less precise.
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* The difference does not presently affect any test results.
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*
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* We use the lower-level do_report_result throughout this file,
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* rather than the high-level xpcshell/head.js API that has near
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* equivalents for the W3C assert_* functions, because only
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* do_report_result allows us to provide Components.stack.caller.
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*/
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function assert_equals(a, b, msg) {
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let text =
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msg +
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": " +
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_wrap_with_quotes_if_necessary(a) +
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" == " +
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_wrap_with_quotes_if_necessary(b);
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do_report_result(a == b, text, Components.stack.caller, false);
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}
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function assert_not_equals(a, b, msg) {
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let text =
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msg +
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": " +
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_wrap_with_quotes_if_necessary(a) +
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" != " +
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_wrap_with_quotes_if_necessary(b);
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do_report_result(a != b, text, Components.stack.caller, false);
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}
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function assert_array_equals(a, b, msg) {
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do_report_result(
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a.length == b.length,
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msg + ": (length) " + a.length + " == " + b.length,
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Components.stack.caller,
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false
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);
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for (let i = 0; i < a.length; ++i) {
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if (a[i] !== b[i]) {
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do_report_result(
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false,
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msg +
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": [" +
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i +
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"] " +
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_wrap_with_quotes_if_necessary(a[i]) +
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" === " +
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_wrap_with_quotes_if_necessary(b[i]),
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Components.stack.caller,
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false
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);
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}
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}
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// If we get here, all array elements are equal.
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do_report_result(
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true,
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msg + ": all array elements equal",
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Components.stack.caller,
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false
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);
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}
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function assert_true(cond, msg) {
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do_report_result(
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!!cond,
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msg + ": " + uneval(cond),
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Components.stack.caller,
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false
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);
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}
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function assert_throws(ex, func) {
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if (!("name" in ex)) {
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do_throw(
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"first argument to assert_throws must be of the form " +
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"{'name': something}"
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);
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}
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let msg = "expected to catch an exception named " + ex.name;
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try {
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func();
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} catch (e) {
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if ("name" in e) {
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do_report_result(
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e.name == ex.name,
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msg + ", got " + e.name,
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Components.stack.caller,
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false
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);
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} else {
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do_report_result(
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false,
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msg + ", got " + legible_exception(ex),
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Components.stack.caller,
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false
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);
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}
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return;
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}
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// Call this here, not in the 'try' clause, so do_report_result's own
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// throw doesn't get caught by our 'catch' clause.
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do_report_result(
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false,
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msg + ", but returned normally",
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Components.stack.caller,
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false
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);
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}
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var tests = [];
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function test(func, msg) {
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tests.push({
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msg,
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func,
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filename: Components.stack.caller.filename,
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});
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}
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function run_test() {
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tests.forEach(function (t) {
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info(`test group: ${t.msg}, {source_file: ${t.filename}}`);
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t.func();
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});
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}
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