9bf72cf758
- `const` without value - `delete` of expression - redefining `arguments` or `eval` extend `test/ufuzz.js` - optionally generate "use strict" - improve handling of test cases with syntax errors - group IIFE generation - generate bare anonymous functions - workaround `console.log()` for `new function()` - generate expressions with `this` fixes #1810
73 lines
2.2 KiB
JavaScript
73 lines
2.2 KiB
JavaScript
var vm = require("vm");
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function safe_log(arg) {
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if (arg) switch (typeof arg) {
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case "function":
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return arg.toString();
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case "object":
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if (/Error$/.test(arg.name)) return arg.toString();
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arg.constructor.toString();
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for (var key in arg) {
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arg[key] = safe_log(arg[key]);
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}
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}
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return arg;
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}
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var FUNC_TOSTRING = [
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"Function.prototype.toString = Function.prototype.valueOf = function() {",
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" var id = 0;",
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" return function() {",
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' if (this === Array) return "[Function: Array]";',
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' if (this === Object) return "[Function: Object]";',
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" var i = this.name;",
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' if (typeof i != "number") {',
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" i = ++id;",
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' Object.defineProperty(this, "name", {',
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" get: function() {",
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" return i;",
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" }",
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" });",
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" }",
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' return "[Function: " + i + "]";',
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" }",
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"}();",
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].join("\n");
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exports.run_code = function(code) {
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var stdout = "";
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var original_write = process.stdout.write;
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process.stdout.write = function(chunk) {
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stdout += chunk;
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};
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try {
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vm.runInNewContext([
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FUNC_TOSTRING,
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"!function() {",
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code,
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"}();",
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].join("\n"), {
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console: {
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log: function() {
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return console.log.apply(console, [].map.call(arguments, safe_log));
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}
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}
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}, { timeout: 5000 });
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return stdout;
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} catch (ex) {
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return ex;
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} finally {
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process.stdout.write = original_write;
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}
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};
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exports.same_stdout = ~process.version.lastIndexOf("v0.12.", 0) ? function(expected, actual) {
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if (typeof expected != typeof actual) return false;
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if (typeof expected != "string") {
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if (expected.name != actual.name) return false;
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expected = expected.message.slice(expected.message.lastIndexOf("\n") + 1);
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actual = actual.message.slice(actual.message.lastIndexOf("\n") + 1);
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}
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return expected == actual;
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} : function(expected, actual) {
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return typeof expected == typeof actual && expected.toString() == actual.toString();
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};
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