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test.js
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test.js
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/*!
* stacktrace-metadata <https://github.com/tunnckoCore/stacktrace-metadata>
*
* Copyright (c) Charlike Mike Reagent <@tunnckoCore> (https://i.am.charlike.online)
* Released under the MIT license.
*/
/* jshint asi:true */
'use strict'
var test = require('mukla')
var stacktraceMetadata = require('./index')
test('should throw TypeError if not passed with real error', function (done) {
function fixture () {
stacktraceMetadata(123)
}
test.throws(fixture, TypeError)
test.throws(fixture, /expect `error` to be real error/)
done()
})
test('should return the same error', function firstTest (done) {
var err = new Error('foo bar')
var e = stacktraceMetadata(err)
test.strictEqual(err === e, true)
test.strictEqual(e instanceof Error, true)
test.strictEqual(err.name, e.name)
test.strictEqual(err.stack, e.stack)
test.strictEqual(err.message, e.message)
test.strictEqual(err.message, e.message)
test.strictEqual(e.line, 26)
test.ok(e.column)
test.strictEqual(e.filename, 'test.js')
test.strictEqual(e.place, 'Object.firstTest')
done()
})
test('should have relative paths by default', function (done) {
var err = new Error('opts.relativePaths: true')
var e = stacktraceMetadata(err)
test.strictEqual(e.message, 'opts.relativePaths: true')
test.strictEqual(e.stack.indexOf('(test.js:43:13') > 0, true)
test.strictEqual(e.line, 43)
test.strictEqual(e.filename, 'test.js')
test.ok(e.at)
test.ok(e.column)
done()
})
test('should have absolute paths if opts.relativePaths: false', function (done) {
var error = new Error('foo qux bar')
var e = stacktraceMetadata(error, {
relativePaths: false
})
test.strictEqual(e.message, 'foo qux bar')
test.strictEqual(e.stack.indexOf('(test.js:') === -1, true)
test.strictEqual(e.line, 56)
test.ok(e.at)
test.ok(e.place)
test.ok(e.column)
test.ok(e.filename)
done()
})
test('should clean stack by default', function (done) {
var error = new TypeError('woohooo')
var stack = [
'Error: woohooo',
' at Object.xyz (/home/charlike/apps/stacktrace-metadata/test.js:111:33)',
' at Object.tryCatch (/home/charlike/apps/node_modules/try-catch-callback/index.js:75:14)',
' at Object.tryCatchCallback (/home/charlike/apps/node_modules/try-catch-callback/index.js:58:21)',
' at Object.tryCatch (/home/charlike/apps/node_modules/always-done/node_modules/try-catch-core/index.js:80:26)',
' at Object.tryCatchCore (/home/charlike/apps/node_modules/always-done/node_modules/try-catch-core/index.js:64:12)',
' at Object.alwaysDone (/home/charlike/apps/node_modules/always-done/index.js:61:24)',
' at mukla (/home/charlike/apps/node_modules/mukla/index.js:55:9)',
' at Object.<anonymous> (/home/charlike/apps/stacktrace-metadata/zazzy.js:15:1)',
' at Module._compile (module.js:571:32)',
' at Object.Module._extensions..js (module.js:580:10)'
]
error.stack = stack.join('\n')
var e = stacktraceMetadata(error, {
shortStack: false
})
// should not exist, because stack is cleaned
var notExists = e.stack.indexOf('at Module._compile (module.js:571:32)') === -1
test.strictEqual(notExists, true)
// should new stack be shorter than the old one
test.strictEqual(e.stack.split('\n').length < stack.length, true)
test.ok(e.line)
test.strictEqual(e.place, 'Object.xyz')
test.strictEqual(/Object\.xyz/.test(e.at), true)
test.strictEqual(/test\.js:111:33/.test(e.at), true)
test.ok(e.filename)
test.ok(e.column)
done()
})
test('should not clean stack if opts.cleanStack: false', function bazzyTest (done) {
var err = new Error('quxie bazzy')
var opts = {
cleanStack: false,
shortStack: false
}
var e = stacktraceMetadata(err, opts)
var internals = e.stack.indexOf('at Module._compile') > 0
test.strictEqual(internals, true)
test.strictEqual(e.line, 108)
test.ok(e.filename)
test.strictEqual(e.place, 'Object.bazzyTest')
test.strictEqual(/Object\.bazzyTest/.test(e.at), true)
test.strictEqual(/test\.js:108:13/.test(e.at), true)
test.ok(e.column)
done()
})
test('should have empty string err.stack property if opts.showStack: false', function emptyStack (done) {
var err = stacktraceMetadata(new Error('abc'), {
showStack: false
})
test.strictEqual(err.stack, '')
test.strictEqual(err.line, 127)
test.strictEqual(err.place, 'Object.emptyStack')
test.strictEqual(/test\.js:127:32/.test(err.at), true)
test.ok(err.filename)
test.ok(err.column)
done()
})
test('should have props like `err.line`, `err.filename` and `err.column`', function myQuxTest (done) {
var err = new Error('my special error')
var e = stacktraceMetadata(err)
test.strictEqual(e.name, 'Error')
test.strictEqual(e.message, 'my special error')
test.strictEqual(e.line, 141)
test.strictEqual(e.place, 'Object.myQuxTest')
test.ok(e.filename)
test.strictEqual(/Object\.myQuxTest/.test(e.at), true)
test.strictEqual(/test\.js:141:13/.test(e.at), true)
test.ok(err.column)
done()
})
test('should not have special props if passed error has empty stack', function (done) {
var err = new Error('foo')
err.stack = ''
var e = stacktraceMetadata(err)
test.strictEqual(e.at, undefined)
test.strictEqual(e.line, undefined)
test.strictEqual(e.place, undefined)
test.strictEqual(e.column, undefined)
test.strictEqual(e.filename, undefined)
test.strictEqual(e === err, true)
done()
})
test('should work for errors thrown like what rimraf.sync throws', function quxieTest (done) {
var rimraf = require('rimraf')
try {
rimraf.sync(12345)
} catch (err) {
var e = stacktraceMetadata(err, {
mapper: function () {}
})
test.strictEqual(e.line, 174)
test.strictEqual(e.place, 'Object.quxieTest')
test.ok(e.filename)
test.strictEqual(/Object\.quxieTest/.test(e.at), true)
test.strictEqual(/test\.js:174:12/.test(e.at), true)
test.ok(err.column)
}
done()
})
test('should be able to pass custom opts.mapper function', function (done) {
var err = new Error('custom mapper')
var e = stacktraceMetadata(err, {
mapper: function (line) {
test.strictEqual(typeof line, 'string')
return line
}
})
test.strictEqual(e.stack.trim().length > 0, true)
test.ok(e.at)
test.ok(e.line)
test.ok(e.place)
test.ok(e.column)
test.ok(e.filename)
done()
})
test('should work for stack that dont have "place" at some lines', function (done) {
var msg = 'no place just filename, line and column'
var err = new Error(msg)
err.stack = [
'Error: no place just filename, line and column',
' at /home/foo/bar.js:331:7'
].join('\n')
var error = stacktraceMetadata(err)
test.strictEqual(error.place, '')
done()
})