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var test = require('tape') , inherits = require('inherits') , ErrorStackParser = require('error-stack-parser') , errno = require('./') test('sanity checks', function (t) { t.ok(errno.all, 'errno.all not found') t.ok(errno.errno, 'errno.errno not found') t.ok(errno.code, 'errno.code not found') t.equal(errno.all.length, 60, 'found ' + errno.all.length + ', expected 60') t.equal(errno.errno['-1'], errno.all[1], 'errno -1 not second element') t.equal(errno.code['UNKNOWN'], errno.all[1], 'code UNKNOWN not second element') t.equal(errno.errno[1], errno.all[3], 'errno 1 not fourth element') t.equal(errno.code['EOF'], errno.all[3], 'code EOF not fourth element') t.end() }) test('custom errors', function (t) { const Cust = errno.create('FooNotBarError') const cust = new Cust('foo is not bar') t.equal(cust.name, 'FooNotBarError', 'correct custom name') t.equal(cust.type, 'FooNotBarError', 'correct custom type') t.equal(cust.message, 'foo is not bar', 'correct custom message') t.notOk(cust.cause, 'no cause') t.end() }) test('callstack', function (t) { const MyError = errno.create('MyError') function lastFunction (ErrorType, cb) { process.nextTick(cb, new ErrorType('oh noes!')) } function secondLastFunction (ErrorType, cb) { lastFunction(ErrorType, cb) } function testFrames (t) { return function (err) { const stack = ErrorStackParser.parse(err) t.same(stack[0].functionName, 'lastFunction', 'last stack frame ok') t.same(stack[1].functionName, 'secondLastFunction', 'second last stack frame ok') t.end() } } t.test('custom error, default prototype', function (t) { secondLastFunction(MyError, testFrames(t)) }) t.test('custom error, custom prototype', function (t) { const MyError2 = errno.create('MyError2', MyError) secondLastFunction(MyError2, testFrames(t)) }) t.test('custom error, using inheritance', function (t) { const CustomError = errno.custom.CustomError function MyError3 (message, cause) { CustomError.call(this, message, cause) } inherits(MyError3, CustomError) secondLastFunction(MyError3, testFrames(t)) }) }) test('error without message', function (t) { const Cust = errno.create('WriteError') const cust = new Cust({ code: 22, message: '', name: 'QuotaExceededError' }) t.equal(cust.name, 'WriteError', 'correct custom name') t.equal(cust.type, 'WriteError', 'correct custom type') t.equal(cust.message, 'QuotaExceededError', 'message is the name') t.notOk(cust.cause, 'no cause') t.end() })
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