ref: c067e1299c83e7df24a89cbea36679aefad43bb0
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)