212 lines
6.0 KiB
JavaScript
212 lines
6.0 KiB
JavaScript
require('./source-map-support').install();
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var SourceMapGenerator = require('source-map').SourceMapGenerator;
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var child_process = require('child_process');
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var assert = require('assert');
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var fs = require('fs');
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function compareLines(actual, expected) {
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assert(actual.length >= expected.length, 'got ' + actual.length + ' lines but expected at least ' + expected.length + ' lines');
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for (var i = 0; i < expected.length; i++) {
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// Some tests are regular expressions because the output format changed slightly between node v0.9.2 and v0.9.3
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if (expected[i] instanceof RegExp) {
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assert(expected[i].test(actual[i]), JSON.stringify(actual[i]) + ' does not match ' + expected[i]);
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} else {
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assert.equal(actual[i], expected[i]);
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}
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}
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}
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function compareStackTrace(source, expected) {
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var sourceMap = new SourceMapGenerator({
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file: '.generated.js',
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sourceRoot: '.'
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});
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for (var i = 1; i <= 100; i++) {
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sourceMap.addMapping({
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generated: { line: i, column: 1 },
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original: { line: 1000 + i, column: 100 + i },
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source: 'line' + i + '.js'
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});
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}
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fs.writeFileSync('.generated.js.map', sourceMap);
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fs.writeFileSync('.generated.js', 'exports.test = function() {' +
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source.join('\n') + '};//@ sourceMappingURL=.generated.js.map');
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try {
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delete require.cache[require.resolve('./.generated')];
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require('./.generated').test();
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} catch (e) {
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compareLines(e.stack.split('\n'), expected);
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}
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fs.unlinkSync('.generated.js');
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fs.unlinkSync('.generated.js.map');
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}
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function compareStdout(done, source, expected) {
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var sourceMap = new SourceMapGenerator({
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file: '.generated.js',
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sourceRoot: '.'
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});
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sourceMap.addMapping({
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generated: { line: 1, column: 1 },
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original: { line: 1, column: 1 },
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source: '.original.js'
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});
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fs.writeFileSync('.original.js', 'this is the original code');
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fs.writeFileSync('.generated.js.map', sourceMap);
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fs.writeFileSync('.generated.js', source.join('\n') +
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'//@ sourceMappingURL=.generated.js.map');
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child_process.exec('node ./.generated', function(error, stdout, stderr) {
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try {
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compareLines((stdout + stderr).trim().split('\n'), expected);
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} catch (e) {
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return done(e);
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}
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fs.unlinkSync('.generated.js');
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fs.unlinkSync('.generated.js.map');
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fs.unlinkSync('.original.js');
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done();
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});
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}
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it('normal throw', function() {
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compareStackTrace([
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'throw new Error("test");'
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], [
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'Error: test',
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' at Object.exports.test (./line1.js:1001:101)'
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]);
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});
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it('throw inside function', function() {
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compareStackTrace([
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'function foo() {',
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' throw new Error("test");',
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'}',
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'foo();'
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], [
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'Error: test',
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' at foo (./line2.js:1002:102)',
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' at Object.exports.test (./line4.js:1004:104)'
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]);
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});
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it('throw inside function inside function', function() {
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compareStackTrace([
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'function foo() {',
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' function bar() {',
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' throw new Error("test");',
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' }',
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' bar();',
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'}',
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'foo();'
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], [
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'Error: test',
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' at bar (./line3.js:1003:103)',
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' at foo (./line5.js:1005:105)',
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' at Object.exports.test (./line7.js:1007:107)'
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]);
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});
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it('eval', function() {
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compareStackTrace([
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'eval("throw new Error(\'test\')");'
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], [
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'Error: test',
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/^ at Object.eval \(eval at <anonymous> \(\.\/line1\.js:1001:101\)/,
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' at Object.exports.test (./line1.js:1001:101)'
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]);
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});
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it('eval inside eval', function() {
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compareStackTrace([
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'eval("eval(\'throw new Error(\\"test\\")\')");'
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], [
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'Error: test',
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/^ at Object.eval \(eval at <anonymous> \(eval at <anonymous> \(\.\/line1\.js:1001:101\)/,
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/^ at Object.eval \(eval at <anonymous> \(\.\/line1\.js:1001:101\)/,
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' at Object.exports.test (./line1.js:1001:101)'
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]);
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});
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it('eval inside function', function() {
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compareStackTrace([
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'function foo() {',
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' eval("throw new Error(\'test\')");',
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'}',
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'foo();'
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], [
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'Error: test',
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/^ at eval \(eval at foo \(\.\/line2\.js:1002:102\)/,
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' at foo (./line2.js:1002:102)',
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' at Object.exports.test (./line4.js:1004:104)'
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]);
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});
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it('eval with sourceURL', function() {
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compareStackTrace([
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'eval("throw new Error(\'test\')//@ sourceURL=sourceURL.js");'
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], [
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'Error: test',
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' at Object.eval (sourceURL.js:1:7)',
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' at Object.exports.test (./line1.js:1001:101)'
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]);
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});
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it('eval with sourceURL inside eval', function() {
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compareStackTrace([
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'eval("eval(\'throw new Error(\\"test\\")//@ sourceURL=sourceURL.js\')");'
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], [
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'Error: test',
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' at Object.eval (sourceURL.js:1:7)',
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/^ at Object.eval \(eval at <anonymous> \(\.\/line1\.js:1001:101\)/,
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' at Object.exports.test (./line1.js:1001:101)'
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]);
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});
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it('default options', function(done) {
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compareStdout(done, [
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'',
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'function foo() { throw new Error("this is the error"); }',
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'require("./source-map-support").install();',
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'process.nextTick(foo);',
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'process.nextTick(function() { process.exit(1); });'
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], [
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'./.original.js:1',
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'this is the original code',
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'^',
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'Error: this is the error',
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' at foo (./.original.js:1:1)'
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]);
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});
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it('handleUncaughtExceptions is true', function(done) {
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compareStdout(done, [
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'',
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'function foo() { throw new Error("this is the error"); }',
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'require("./source-map-support").install({ handleUncaughtExceptions: true });',
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'process.nextTick(foo);'
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], [
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'./.original.js:1',
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'this is the original code',
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'^',
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'Error: this is the error',
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' at foo (./.original.js:1:1)'
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]);
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});
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it('handleUncaughtExceptions is false', function(done) {
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compareStdout(done, [
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'',
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'function foo() { throw new Error("this is the error"); }',
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'require("./source-map-support").install({ handleUncaughtExceptions: false });',
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'process.nextTick(foo);'
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], [
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/\/.generated.js:2$/,
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'function foo() { throw new Error("this is the error"); }',
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' ^',
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'Error: this is the error',
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' at foo (./.original.js:1:1)'
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]);
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});
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