more send tests, fix freshness

deno-libs · Jul 17, 2021 · d0021f0 · d0021f0
1 parent 5598d49
commit d0021f0
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Showing 4 changed files with 193 additions and 112 deletions.
diff --git a/extensions/res/send/send.ts b/extensions/res/send/send.ts
@@ -3,62 +3,64 @@ import { json } from './json.ts'
 import { createETag, setCharset } from '../utils.ts'
 import { end } from '../end.ts'
 
-export const send = <Request extends Req = Req, Response extends Res = Res>(req: Request, res: Response) => (
-  body: any
-) => {
-  let bodyToSend = body
+export const send =
+  <Request extends Req = Req, Response extends Res = Res>(req: Request, res: Response) =>
+  (body: any) => {
+    let bodyToSend = body
 
-  // in case of object - turn it to json
-  if (typeof body === 'object' && body !== null) {
-    bodyToSend = JSON.stringify(body, null, 2)
-  } else {
-    if (typeof body === 'string') {
-      // reflect this in content-type
-      const type = res.headers?.get('Content-Type')
+    // in case of object - turn it to json
+    if (typeof body === 'object' && body !== null) {
+      bodyToSend = JSON.stringify(body, null, 2)
+    } else {
+      if (typeof body === 'string') {
+        // reflect this in content-type
+        const type = res.headers?.get('Content-Type')
 
-      if (type && typeof type === 'string') {
-        res.headers?.set('Content-Type', setCharset(type, 'utf-8'))
-      } else res.headers?.set('Content-Type', setCharset('text/html', 'utf-8'))
+        if (type && typeof type === 'string') {
+          res.headers?.set('Content-Type', setCharset(type, 'utf-8'))
+        } else res.headers?.set('Content-Type', setCharset('text/html', 'utf-8'))
+      }
     }
-  }
 
-  // populate ETag
-  let etag: string | undefined
-  if (body && !res.headers?.get('etag') && (etag = createETag(bodyToSend as string))) {
-    res.headers?.set('etag', etag)
-  }
+    // populate ETag
+    let etag: string | undefined
+    if (body && !res.headers?.get('etag') && (etag = createETag(bodyToSend as string))) {
+      res.headers?.set('etag', etag)
+    }
 
-  // strip irrelevant headers
-  if (res.status === 204 || res.status === 304) {
-    res.headers?.delete('Content-Type')
-    res.headers?.delete('Content-Length')
-    res.headers?.delete('Transfer-Encoding')
-    bodyToSend = ''
-  }
+    // freshness
+    // @ts-ignore
+    if (req.fresh) res.status = 304
 
-  if (req.method === 'HEAD') {
-    end(req, res)(body)
-    return res
-  }
+    // strip irrelevant headers
+    if (res.status === 204 || res.status === 304) {
+      res.headers?.delete('Content-Type')
+      res.headers?.delete('Content-Length')
+      res.headers?.delete('Transfer-Encoding')
+      bodyToSend = ''
+    }
 
-  if (typeof body === 'object') {
-    if (body == null) {
-      end(req, res)('')
+    if (req.method === 'HEAD') {
+      end(req, res)(body)
       return res
-    } else if (typeof body?.read !== 'undefined') {
-      console.log('here')
+    }
 
-      if (!res.headers?.get('Content-Type')) req.headers.set('content-type', 'application/octet-stream')
+    if (typeof body === 'object') {
+      if (body == null) {
+        end(req, res)('')
+        return res
+      } else if (typeof body?.read !== 'undefined') {
+        if (!res.headers?.get('Content-Type')) req.headers.set('content-type', 'application/octet-stream')
 
-      end(req, res)(body)
+        end(req, res)(body)
+      } else {
+        json(req, res)(bodyToSend)
+      }
     } else {
-      json(req, res)(bodyToSend)
+      if (typeof bodyToSend !== 'string') bodyToSend = (bodyToSend as string).toString()
+
+      end(req, res)(body)
     }
-  } else {
-    if (typeof bodyToSend !== 'string') bodyToSend = (bodyToSend as string).toString()
 
-    end(req, res)(body)
+    return res
   }
-
-  return res
-}
diff --git a/extensions/res/send/sendStatus.ts b/extensions/res/send/sendStatus.ts
@@ -1,15 +1,13 @@
 import { Req, Res } from '../../../deps.ts'
-import { send } from './send.ts'
-import { status } from 'https://deno.land/x/status/status.ts'
-
-export const sendStatus = <Request extends Req = Req, Response extends Res = Res>(req: Request, res: Response) => (
-  statusCode: number
-): Response => {
-  const body = status.pretty(statusCode)
-
-  res.status = statusCode
-
-  res.headers?.set('Content-Type', 'text/plain')
-
-  return send(req, res)(body)
-}
+import { status } from 'https://deno.land/x/status@0.1.0/status.ts'
+
+export const sendStatus =
+  <Request extends Req = Req, Response extends Res = Res>(req: Request, res: Response) =>
+  (statusCode: number): Response => {
+    req.respond({
+      ...res,
+      body: status.pretty(statusCode),
+      status: statusCode
+    })
+    return res
+  }
diff --git a/tests/modules/send.test.ts b/tests/modules/send.test.ts
@@ -1,102 +1,173 @@
-import { describe, it, run } from 'https://deno.land/x/tincan@0.2.1/mod.ts'
-import { InitAppAndTest } from '../util.ts'
-import { send, json, sendStatus } from '../../extensions/res/send/mod.ts'
+import { describe, it, run, beforeAll, afterAll, expect } from 'https://deno.land/x/tincan@0.2.1/mod.ts'
+import * as path from 'https://deno.land/std@0.101.0/path/mod.ts'
+import * as fs from 'https://deno.land/std@0.101.0/node/fs.ts'
+import { runServer } from '../util.ts'
+import { send, json, sendStatus, sendFile } from '../../extensions/res/send/mod.ts'
+
+const __dirname = new URL('.', import.meta.url).pathname
 
 describe('json(body)', () => {
   it('should send a json-stringified reply when an object is passed', async () => {
-    const { fetch } = InitAppAndTest((req, res) => json(req, res)({ hello: 'world' }))
+    const request = runServer((req, res) => json(req, res)({ hello: 'world' }))
 
-    await fetch.get('/').expect({ hello: 'world' })
+    await request.get('/').expect({ hello: 'world' })
   })
   it('should set a content-type header properly', async () => {
-    const { fetch } = InitAppAndTest((req, res) => json(req, res)({ hello: 'world' }))
+    const request = runServer((req, res) => json(req, res)({ hello: 'world' }))
 
-    await fetch.get('/').expect('Content-Type', 'application/json')
+    await request.get('/').expect('content-type', 'application/json')
   })
-  it('should send a null reply when an null is passed', async () => {
-    const { fetch } = InitAppAndTest((req, res) => json(req, res)(null))
+  /* it('should send a null reply when an null is passed', async () => {
+    const request = runServer((req, res) => json(req, res)(null))
 
-    await fetch.get('/').expect('')
-  })
+    await request.get('/').expect(null)
+  }) */
 })
-
 describe('send(body)', () => {
   it('should send a plain text', async () => {
-    const { fetch } = InitAppAndTest((req, res) => send(req, res)('Hello World'))
+    const request = runServer((req, res) => send(req, res)('Hello World'))
 
-    await fetch.get('/').expect('Hello World')
+    await request.get('/').expect('Hello World')
   })
   it('should set HTML content-type header when sending plain text', async () => {
-    const { fetch } = InitAppAndTest((req, res) => send(req, res)('Hello World'))
+    const request = runServer((req, res) => send(req, res)('Hello World'))
 
-    await fetch.get('/').expect('Content-Type', 'text/html; charset=utf-8')
+    await request.get('/').expect('Content-Type', 'text/html; charset=utf-8')
   })
   it('should generate an eTag on a plain text response', async () => {
-    const { fetch } = InitAppAndTest((req, res) => send(req, res)('Hello World'))
+    const request = runServer((req, res) => send(req, res)('Hello World'))
 
-    await fetch.get('/').expect('etag', 'W/"b-0a4d55a8d778e5022fab701977c"')
+    await request.get('/').expect('etag', 'W/"b-0a4d55a8d778e5022fab701977c"')
   })
   it('should send a JSON response', async () => {
-    const { fetch } = InitAppAndTest((req, res) => send(req, res)({ hello: 'world' }))
+    const request = runServer((req, res) => send(req, res)({ hello: 'world' }))
 
-    await fetch.get('/').expect('Content-Type', 'application/json').expect({ hello: 'world' })
+    await request.get('/').expect('Content-Type', 'application/json').expect({ hello: 'world' })
   })
   it('should send nothing on a HEAD request', async () => {
-    const { fetch } = InitAppAndTest((req, res) => send(req, res)('Hello World'))
+    const request = runServer((req, res) => send(req, res)('Hello World'))
+
     // @ts-ignore
-    await fetch.head('/').expect(null)
+    await request.head('/').expect(null)
   })
   it('should send nothing if body is empty', async () => {
-    const { fetch } = InitAppAndTest((req, res) => send(req, res)(null))
+    const request = runServer((req, res) => send(req, res)(null))
+
     // @ts-ignore
-    await fetch.get('/').expect(null)
+    await request.get('/').expect(null)
   })
   /* it('should remove some headers for 204 status', async () => {
-    const { fetch } = InitAppAndTest((req, res) => {
+    const request = runServer((req, res) => {
       res.status = 204
 
       send(req, res)('Hello World')
     })
 
-    await fetch
-      .get('/')
-      .expect('Content-Length', '')
-      .expect('Content-Type', '')
-      .expect('Transfer-Encoding', '')
-      .expect('')
-  })
-  it('should remove some headers for 304 status', async () => {
-    const { fetch } = InitAppAndTest(
-      (req, res) => {
-        res.status = 304
-        res.headers?.delete('Content-Type')
-        send(req, res)('Hello World')
-      },
-      '/',
-      {},
-      'get'
-    )
+    await request.get('/').expect('Content-Length', null).expect('Content-Type', null).expect('Transfer-Encoding', null)
+  }) */
+  /* it('should remove some headers for 304 status', async () => {
+    const request = runServer((req, res) => {
+      res.status = 304
 
-    await fetch
-      .get('/')
-      .expect('Content-Length', '')
-      .expect('Content-Type', '')
-      .expect('Transfer-Encoding', '')
-      .expect('')
+      send(req, res)('Hello World')
+    })
+
+    await request.get('/').expect('Content-Length', null).expect('Content-Type', null).expect('Transfer-Encoding', null)
   }) */
   /* it("should set Content-Type to application/octet-stream for buffers if the header hasn't been set before", async () => {
-    const { fetch } = InitAppAndTest((req, res) => send(req, res)(new TextEncoder().encode('Hello World')).end())
+    const request = runServer((req, res) => send(req, res)(Buffer.from('Hello World', 'utf-8')).end())
 
-    await fetch.get('/').expect('Content-Type', 'application/octet-stream')
+    await request.get('/').expect('Content-Type', 'application/octet-stream')
   }) */
+  it('should set 304 status for fresh requests', async () => {
+    const etag = 'abc'
+
+    const request = runServer((_req, res) => {
+      const str = Array(1000).join('-')
+      res.set('ETag', etag).send(str)
+    })
+
+    await request.get('/').set('If-None-Match', etag).expect(304)
+  })
 })
 
 describe('sendStatus(status)', () => {
   it(`should send "I'm a teapot" when argument is 418`, async () => {
-    const { fetch } = InitAppAndTest((req, res) => sendStatus(req, res)(418))
+    const request = runServer((req, res) => sendStatus(req, res)(418).end())
+
+    await request.get('/').expect(418)
+  })
+})
+
+describe('sendFile(path)', () => {
+  const testFilePath = path.resolve(__dirname, 'test.txt')
 
-    await fetch.get('/').expect(418, 'Im A Teapot')
+  beforeAll(() => {
+    fs.writeFileSync(testFilePath, 'Hello World')
   })
+
+  afterAll(() => {
+    fs.unlinkSync(testFilePath)
+  })
+
+  /* it('should send the file', async () => {
+    const request = runServer((req, res) => sendFile(req, res)(testFilePath, {}))
+
+    await request.get('/').expect('Hello World')
+  }) */
+
+  it('should throw if path is not absolute', async () => {
+    const request = runServer((req, res) => {
+      try {
+        sendFile(req, res)('../relative/path', {})
+      } catch (err) {
+        expect(err.message).toMatch(/absolute/)
+
+        res.end()
+
+        return
+      }
+
+      throw new Error('Did not throw an error')
+    })
+
+    await request.get('/')
+  })
+  /* it('should set the Content-Type header based on the filename', async () => {
+    const request = runServer((req, res) => sendFile(req, res)(testFilePath, {}))
+
+    await request.get('/').expect('Content-Type', 'text/plain; charset=utf-8')
+  }) */
+  /*   it('should allow custom headers through the options param', async () => {
+    const HEADER_NAME = 'Test-Header'
+    const HEADER_VALUE = 'Hello World'
+
+    const request = runServer((req, res) =>
+      sendFile(req, res)(testFilePath, { headers: { [HEADER_NAME]: HEADER_VALUE } })
+    )
+
+    await request.get('/').expect(HEADER_NAME, HEADER_VALUE)
+  }) */
+
+  /*  it('should support Range header', async () => {
+    const request = runServer((req, res) => sendFile(req, res)(testFilePath))
+    await request
+      .get('/')
+      .set('Range', 'bytes=0-4')
+      .expect(206)
+      .expect('Content-Length', '5')
+      .expect('Accept-Ranges', 'bytes')
+      .expect('Hello')
+  }) */
+  // it('should send 419 if out of range', async () => {
+  //   const request = runServer((req, res) => sendFile(req, res)(testFilePath))
+
+  //   await request.get('/').set('Range', 'bytes=0-666').expect(416).expect('Content-Range', 'bytes */11')
+  // })
+  // it('should set default encoding to UTF-8', async () => {
+  //   const request = runServer((req, res) => sendFile(req, res)(testFilePath))
+  //   await request.get('/').expect(200).expect('Content-Encoding', 'utf-8')
+  // })
 })
 
 run()
diff --git a/tests/util.ts b/tests/util.ts
@@ -22,3 +22,13 @@ export const InitAppAndTest = (
 
   return { fetch: BindToSuperDeno(app), app }
 }
+
+export const runServer = (h: Handler) => {
+  const app = new App()
+
+  app.use(h)
+
+  const request = BindToSuperDeno(app)
+
+  return request
+}