ref: a442a0418f06b673559c93a69e3167b4460d6d07
dir: /tools/test262-harness.js/
/*
* Runs one test file from the ES5 test suite test-262
* Usage: mujs <this-file> [-s ] [-f] [-l file1.js -l ...] suit-root test-file
* -s: print test source on failure
* -f: print full paths/stacktraces if possible
* -l: load a js file after the harness and before the test (to override things)
*
* If there are errors, print them and exits with code 1, else exit code is 0.
*
* The test suite is at: https://github.com/tc39/test262.git
* The ES5 suite is at branch "es5-tests"
*
* - The test suite throws on any error, possibly with info at ex.message .
* - Some tests make irreversible changes to global attrubutes, therefore it's
* required to run each test file in a new mujs instance.
*/
(function(global) {
"use strict";
// clean the global environment
var mujs = {};
["gc", "load", "compile", "print", "write", "read", "readline", "quit", "scriptArgs"]
.forEach(function(a) {
mujs[a] = global[a];
delete global[a];
});
// restore the original Error.toString behavior - it's being tested too
Error.prototype.toString = function() {
return this.name + ': ' + this.message;
}
function die_usage(str) {
if (str)
mujs.print(str);
mujs.print("Usage: mujs <this-file> [-f] [-l file1.js -l ...] suit-root test-file");
mujs.quit(1);
}
// our file loader
function load(str, as_filename) {
try {
var runtime_err = false;
var compiled = mujs.compile(str, as_filename);
runtime_err = true;
compiled();
return false;
} catch (e) {
return {err: e, runtime: runtime_err};
}
}
var args = mujs.scriptArgs;
var full_mode = false;
var print_src = false;
var overrides = [];
while ((""+args[0])[0] == "-") {
switch (args[0]) {
case "-f": full_mode = true;
break;
case "-s": print_src = true;
break;
case "-l": args.shift();
overrides.push(args[0]);
break;
default: die_usage("Unknown option " + args[0]);
}
args.shift();
}
if (args.length != 2)
die_usage("Exactly 2 paths are expected");
var root_path = args[0];
var test_path = args[1];
// load suite utils
["sta.js", "testBuiltInObject.js", "testIntl.js"]
.forEach(function(u) {
var path = root_path + "/test/harness/" + u;
var as_file = full_mode ? path : "test/harness/" + u;
var err = load(mujs.read(path), as_file);
if (err) throw (err.err);
});
// load user overrides (e.g. reduced getPrecision), with a global mujs
if (overrides.length) {
global.mujs = mujs
overrides.forEach(function(f) {
var err = load(mujs.read(f), f);
if (err) throw (err.err);
});
delete global.mujs;
}
// the actual test
var source = mujs.read(test_path);
var negative = !!source.match(/@negative/);
if (negative)
var neg_str = (source.match(/@negative (.*)/) || [])[1];
var as_file = test_path;
if (!full_mode) {
as_file = test_path.replace(/\\/g, "/");
var sub = as_file.indexOf("/suite/");
if (sub >= 0)
as_file = "test" + as_file.substring(sub);
}
var result = load(mujs.read(test_path), as_file);
if (!!result == negative) {
// The docs don't really help about matching str, but this covers all cases
if (neg_str)
var err_for_match = /NotEarlyError/.test(neg_str) ? result.err.message : result.err.name;
if (!negative || !neg_str || RegExp(neg_str).exec(err_for_match))
mujs.quit(0);
}
// failed
// FIXME: @description can span lines. E.g. test/suite/bestPractice/Sbp_A3_T2.js
var desc = source.match(/@description (.*)/);
var info = "[File] " + as_file +
(desc ? "\n[Desc] " + desc[1] : "") +
"\n";
if (result) {
var err = result.err;
var msg = !neg_str ? err : "[Mismatch @negative " + neg_str + "]" + "\n " + err;
info += (result.runtime ? "[run] " : "[load] ") + msg;
if (err && err.stackTrace && (result.runtime || full_mode)) {
if (full_mode) {
info += err.stackTrace;
} else {
// trim the internal loader from the trace
var internal = err.stackTrace.indexOf("\n" + load("mujs_blahblah()").err.stackTrace.trim().split("\n")[1]);
if (internal >= 0)
info += err.stackTrace.substring(0, internal);
else
info += err.stackTrace;
}
}
} else {
info += "[run] [Error expected but none thrown]";
}
if (print_src)
info += "\n[Source]\n" + source;
mujs.print(info);
mujs.quit(1);
})(this)