2a09d1a4
 liuqimichale
添加宜春 天水 宣化
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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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