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我有一個快速的基於寧靜的應用程序，我決定使用supertest進行測試。這是我用supertest進行的第一次測試，我很困惑。其中一個途徑是：爲什麼supertest（測試express）返回狀態301而不是200？
/api/version
它返回版本：
export function index(req: express.Request, res: express.Response) {
log('index of version.controller');
let ver = { version: version.getVersion() + ' & textAngular: v' + textAngularVersion.getTextAngularVersion() };
res.setHeader('Content-Type', 'application/json');
return res.status(200).json(ver);
}
的正常工作，當我在Chrome中看到 'http://localhost:9000/api/version/' 我看到：
{"version":"v0.00.000-38-gf395113 & textAngular: v1.5.16"}
這是我期望的。如預期的那樣，狀態爲200（或304，如果它已被Chrome緩存）。
然而，當我與摩卡和supertest測試：
describe('GET /api/version',() => {
it('should respond with version', (done: any) => {
request(app.server)
.get('/api/version')
.expect('Content-Type', 'text/html; charset=UTF-8')
.expect(200)
.end((err: any, res: any) => {
if (err) {
return done(err);
}
done();
});
});
});
我看到：
Error: expected 200 "OK", got 301 "Moved Permanently"
除非我註釋掉expect(200) line。另外我很驚訝我沒有看到'application/json'的'Content-Type'。這是我在上面設置的。
我想知道爲什麼會發生這種情況？
該應用程序有點大，我可以報告更多的細節，但我懷疑有人明白爲什麼304狀態顯示出來。
如果我註釋掉預期（200）線和捕捉我看到響應：當我發現
2017-02-26T14:51:08-0700 <log> app.js:124 (Server.<anonymous>) Express server listening on 9000, in test mode
GET /api/version
::ffff:127.0.0.1 - GET /api/version HTTP/1.1 301 57 - 6.867 ms
Response {
domain: null,
_events: {},
_eventsCount: 0,
_maxListeners: undefined,
res:
IncomingMessage {
_readableState:
ReadableState {
objectMode: false,
highWaterMark: 16384,
buffer: [Object],
length: 0,
pipes: null,
pipesCount: 0,
flowing: true,
ended: true,
endEmitted: true,
reading: false,
sync: true,
needReadable: false,
emittedReadable: false,
readableListening: false,
resumeScheduled: false,
defaultEncoding: 'utf8',
ranOut: false,
awaitDrain: 0,
readingMore: false,
decoder: [Object],
encoding: 'utf8' },
readable: false,
domain: null,
_events:
{ end: [Object],
data: [Object],
error: [Object],
close: [Function: bound emit] },
_eventsCount: 4,
_maxListeners: undefined,
socket:
Socket {
connecting: false,
_hadError: false,
_handle: null,
_parent: null,
_host: null,
_readableState: [Object],
readable: false,
domain: null,
_events: [Object],
_eventsCount: 8,
_maxListeners: undefined,
_writableState: [Object],
writable: false,
allowHalfOpen: false,
destroyed: true,
_bytesDispatched: 137,
_sockname: null,
_pendingData: null,
_pendingEncoding: '',
server: null,
_server: null,
parser: null,
_httpMessage: [Object],
read: [Function],
_consuming: true,
_idleNext: null,
_idlePrev: null,
_idleTimeout: -1 },
connection:
Socket {
connecting: false,
_hadError: false,
_handle: null,
_parent: null,
_host: null,
_readableState: [Object],
readable: false,
domain: null,
_events: [Object],
_eventsCount: 8,
_maxListeners: undefined,
_writableState: [Object],
writable: false,
allowHalfOpen: false,
destroyed: true,
_bytesDispatched: 137,
_sockname: null,
_pendingData: null,
_pendingEncoding: '',
server: null,
_server: null,
parser: null,
_httpMessage: [Object],
read: [Function],
_consuming: true,
_idleNext: null,
_idlePrev: null,
_idleTimeout: -1 },
httpVersionMajor: 1,
httpVersionMinor: 1,
httpVersion: '1.1',
complete: true,
headers:
{ 'x-powered-by': 'Express',
'content-type': 'text/html; charset=UTF-8',
'content-length': '57',
'x-content-type-options': 'nosniff',
location: '/api/version/',
date: 'Sun, 26 Feb 2017 21:51:08 GMT',
connection: 'close' },
rawHeaders:
[ 'X-Powered-By',
'Express',
'Content-Type',
'text/html; charset=UTF-8',
'Content-Length',
'57',
'X-Content-Type-Options',
'nosniff',
'Location',
'/api/version/',
'Date',
'Sun, 26 Feb 2017 21:51:08 GMT',
'Connection',
'close' ],
trailers: {},
rawTrailers: [],
upgrade: false,
url: '',
method: null,
statusCode: 301,
statusMessage: 'Moved Permanently',
client:
Socket {
connecting: false,
_hadError: false,
_handle: null,
_parent: null,
_host: null,
_readableState: [Object],
readable: false,
domain: null,
_events: [Object],
_eventsCount: 8,
_maxListeners: undefined,
_writableState: [Object],
writable: false,
allowHalfOpen: false,
destroyed: true,
_bytesDispatched: 137,
_sockname: null,
_pendingData: null,
_pendingEncoding: '',
server: null,
_server: null,
parser: null,
_httpMessage: [Object],
read: [Function],
_consuming: true,
_idleNext: null,
_idlePrev: null,
_idleTimeout: -1 },
_consuming: true,
_dumped: false,
req:
ClientRequest {
domain: null,
_events: [Object],
_eventsCount: 3,
_maxListeners: undefined,
output: [],
outputEncodings: [],
outputCallbacks: [],
outputSize: 0,
writable: true,
_last: true,
upgrading: false,
chunkedEncoding: false,
shouldKeepAlive: false,
useChunkedEncodingByDefault: false,
sendDate: false,
_removedHeader: {},
_contentLength: 0,
_hasBody: true,
_trailer: '',
finished: true,
_headerSent: true,
socket: [Object],
connection: [Object],
_header: 'GET /api/version HTTP/1.1\r\nHost: 127.0.0.1:9000\r\nAccept-Encoding: gzip, deflate\r\nUser-Agent: node-superagent/3.5.0\r\nConnection: close\r\n\r\n',
_headers: [Object],
_headerNames: [Object],
_onPendingData: null,
agent: [Object],
socketPath: undefined,
timeout: undefined,
method: 'GET',
path: '/api/version',
_ended: true,
res: [Circular],
aborted: undefined,
timeoutCb: null,
upgradeOrConnect: false,
parser: null,
maxHeadersCount: null },
text: 'Redirecting to <a href="/api/version/">/api/version/</a>\n',
read: [Function] },
request:
Test {
domain: null,
_events: {},
_eventsCount: 0,
_maxListeners: undefined,
_agent: false,
_formData: null,
method: 'GET',
url: 'http://127.0.0.1:9000/api/version',
_header: { 'user-agent': 'node-superagent/3.5.0' },
header: { 'User-Agent': 'node-superagent/3.5.0' },
writable: true,
_redirects: 1,
_maxRedirects: 0,
cookies: '',
qs: {},
qsRaw: [],
_redirectList: [],
_streamRequest: false,
_buffer: true,
app:
Server {
domain: null,
_events: [Object],
_eventsCount: 4,
_maxListeners: undefined,
_connections: 0,
_handle: [Object],
_usingSlaves: false,
_slaves: [],
_unref: false,
allowHalfOpen: true,
pauseOnConnect: false,
httpAllowHalfOpen: false,
timeout: 120000,
_pendingResponseData: 0,
maxHeadersCount: null,
_connectionKey: '6::::9000' },
_asserts: [ [Function: bound ] ],
req:
ClientRequest {
domain: null,
_events: [Object],
_eventsCount: 3,
_maxListeners: undefined,
output: [],
outputEncodings: [],
outputCallbacks: [],
outputSize: 0,
writable: true,
_last: true,
upgrading: false,
chunkedEncoding: false,
shouldKeepAlive: false,
useChunkedEncodingByDefault: false,
sendDate: false,
_removedHeader: {},
_contentLength: 0,
_hasBody: true,
_trailer: '',
finished: true,
_headerSent: true,
socket: [Object],
connection: [Object],
_header: 'GET /api/version HTTP/1.1\r\nHost: 127.0.0.1:9000\r\nAccept-Encoding: gzip, deflate\r\nUser-Agent: node-superagent/3.5.0\r\nConnection: close\r\n\r\n',
_headers: [Object],
_headerNames: [Object],
_onPendingData: null,
agent: [Object],
socketPath: undefined,
timeout: undefined,
method: 'GET',
path: '/api/version',
_ended: true,
res: [Object],
aborted: undefined,
timeoutCb: null,
upgradeOrConnect: false,
parser: null,
maxHeadersCount: null },
protocol: 'http:',
host: '127.0.0.1:9000',
_endCalled: true,
_callback: [Function],
res:
IncomingMessage {
_readableState: [Object],
readable: false,
domain: null,
_events: [Object],
_eventsCount: 4,
_maxListeners: undefined,
socket: [Object],
connection: [Object],
httpVersionMajor: 1,
httpVersionMinor: 1,
httpVersion: '1.1',
complete: true,
headers: [Object],
rawHeaders: [Object],
trailers: {},
rawTrailers: [],
upgrade: false,
url: '',
method: null,
statusCode: 301,
statusMessage: 'Moved Permanently',
client: [Object],
_consuming: true,
_dumped: false,
req: [Object],
text: 'Redirecting to <a href="/api/version/">/api/version/</a>\n',
read: [Function] },
response: [Circular],
called: true },
req:
ClientRequest {
domain: null,
_events:
{ drain: [Object],
error: [Object],
prefinish: [Function: requestOnPrefinish] },
_eventsCount: 3,
_maxListeners: undefined,
output: [],
outputEncodings: [],
outputCallbacks: [],
outputSize: 0,
writable: true,
_last: true,
upgrading: false,
chunkedEncoding: false,
shouldKeepAlive: false,
useChunkedEncodingByDefault: false,
sendDate: false,
_removedHeader: {},
_contentLength: 0,
_hasBody: true,
_trailer: '',
finished: true,
_headerSent: true,
socket:
Socket {
connecting: false,
_hadError: false,
_handle: null,
_parent: null,
_host: null,
_readableState: [Object],
readable: false,
domain: null,
_events: [Object],
_eventsCount: 8,
_maxListeners: undefined,
_writableState: [Object],
writable: false,
allowHalfOpen: false,
destroyed: true,
_bytesDispatched: 137,
_sockname: null,
_pendingData: null,
_pendingEncoding: '',
server: null,
_server: null,
parser: null,
_httpMessage: [Circular],
read: [Function],
_consuming: true,
_idleNext: null,
_idlePrev: null,
_idleTimeout: -1 },
connection:
Socket {
connecting: false,
_hadError: false,
_handle: null,
_parent: null,
_host: null,
_readableState: [Object],
readable: false,
domain: null,
_events: [Object],
_eventsCount: 8,
_maxListeners: undefined,
_writableState: [Object],
writable: false,
allowHalfOpen: false,
destroyed: true,
_bytesDispatched: 137,
_sockname: null,
_pendingData: null,
_pendingEncoding: '',
server: null,
_server: null,
parser: null,
_httpMessage: [Circular],
read: [Function],
_consuming: true,
_idleNext: null,
_idlePrev: null,
_idleTimeout: -1 },
_header: 'GET /api/version HTTP/1.1\r\nHost: 127.0.0.1:9000\r\nAccept-Encoding: gzip, deflate\r\nUser-Agent: node-superagent/3.5.0\r\nConnection: close\r\n\r\n',
_headers:
{ host: '127.0.0.1:9000',
'accept-encoding': 'gzip, deflate',
'user-agent': 'node-superagent/3.5.0' },
_headerNames:
{ host: 'Host',
'accept-encoding': 'Accept-Encoding',
'user-agent': 'User-Agent' },
_onPendingData: null,
agent:
Agent {
domain: null,
_events: [Object],
_eventsCount: 1,
_maxListeners: undefined,
defaultPort: 80,
protocol: 'http:',
options: [Object],
requests: {},
sockets: [Object],
freeSockets: {},
keepAliveMsecs: 1000,
keepAlive: false,
maxSockets: Infinity,
maxFreeSockets: 256 },
socketPath: undefined,
timeout: undefined,
method: 'GET',
path: '/api/version',
_ended: true,
res:
IncomingMessage {
_readableState: [Object],
readable: false,
domain: null,
_events: [Object],
_eventsCount: 4,
_maxListeners: undefined,
socket: [Object],
connection: [Object],
httpVersionMajor: 1,
httpVersionMinor: 1,
httpVersion: '1.1',
complete: true,
headers: [Object],
rawHeaders: [Object],
trailers: {},
rawTrailers: [],
upgrade: false,
url: '',
method: null,
statusCode: 301,
statusMessage: 'Moved Permanently',
client: [Object],
_consuming: true,
_dumped: false,
req: [Circular],
text: 'Redirecting to <a href="/api/version/">/api/version/</a>\n',
read: [Function] },
aborted: undefined,
timeoutCb: null,
upgradeOrConnect: false,
parser: null,
maxHeadersCount: null },
text: 'Redirecting to <a href="/api/version/">/api/version/</a>\n',
body: {},
files: undefined,
buffered: true,
headers:
{ 'x-powered-by': 'Express',
'content-type': 'text/html; charset=UTF-8',
'content-length': '57',
'x-content-type-options': 'nosniff',
location: '/api/version/',
date: 'Sun, 26 Feb 2017 21:51:08 GMT',
connection: 'close' },
header:
{ 'x-powered-by': 'Express',
'content-type': 'text/html; charset=UTF-8',
'content-length': '57',
'x-content-type-options': 'nosniff',
location: '/api/version/',
date: 'Sun, 26 Feb 2017 21:51:08 GMT',
connection: 'close' },
statusCode: 301,
status: 301,
statusType: 3,
info: false,
ok: false,
redirect: true,
clientError: false,
serverError: false,
error: false,
accepted: false,
noContent: false,
badRequest: false,
unauthorized: false,
notAcceptable: false,
forbidden: false,
notFound: false,
type: 'text/html',
charset: 'UTF-8',
links: {},
setEncoding: [Function: bound ],
redirects: [] }
✓ should respond with version (107ms)
：text: 'Redirecting to <a href="/api/version/">/api/version/</a>\n'這給出了一個線索。 你的幫助是非常感謝。