Adding upstream version 5.28.2+dfsg1+~cs23.11.12.3.upstream/5.28.2+dfsg1+_cs23.11.12.3upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1661 insertions, 0 deletions

diff --git a/test/node-fetch/main.js b/test/node-fetch/main.js
new file mode 100644
index 0000000..358a969
--- /dev/null
+++ b/test/node-fetch/main.js
@@ -0,0 +1,1661 @@
+/* eslint no-unused-expressions: "off" */
+/* globals AbortController */
+
+// Test tools
+const zlib = require('zlib')
+const stream = require('stream')
+const vm = require('vm')
+const chai = require('chai')
+const crypto = require('crypto')
+const chaiPromised = require('chai-as-promised')
+const chaiIterator = require('chai-iterator')
+const chaiString = require('chai-string')
+const delay = require('delay')
+const { Blob } = require('buffer')
+
+const {
+  fetch,
+  Headers,
+  Request,
+  FormData,
+  Response,
+  setGlobalDispatcher,
+  Agent
+} = require('../../index.js')
+const HeadersOrig = require('../../lib/fetch/headers.js').Headers
+const RequestOrig = require('../../lib/fetch/request.js').Request
+const ResponseOrig = require('../../lib/fetch/response.js').Response
+const TestServer = require('./utils/server.js')
+const chaiTimeout = require('./utils/chai-timeout.js')
+const { ReadableStream } = require('stream/web')
+
+function isNodeLowerThan (version) {
+  return !~process.version.localeCompare(version, undefined, { numeric: true })
+}
+
+const {
+  Uint8Array: VMUint8Array
+} = vm.runInNewContext('this')
+
+chai.use(chaiPromised)
+chai.use(chaiIterator)
+chai.use(chaiString)
+chai.use(chaiTimeout)
+const { expect } = chai
+
+describe('node-fetch', () => {
+  const local = new TestServer()
+  let base
+
+  before(async () => {
+    await local.start()
+    setGlobalDispatcher(new Agent({
+      connect: {
+        rejectUnauthorized: false
+      }
+    }))
+    base = `http://${local.hostname}:${local.port}/`
+  })
+
+  after(async () => {
+    return local.stop()
+  })
+
+  it('should return a promise', () => {
+    const url = `${base}hello`
+    const p = fetch(url)
+    expect(p).to.be.an.instanceof(Promise)
+    expect(p).to.have.property('then')
+  })
+
+  it('should expose Headers, Response and Request constructors', () => {
+    expect(Headers).to.equal(HeadersOrig)
+    expect(Response).to.equal(ResponseOrig)
+    expect(Request).to.equal(RequestOrig)
+  })
+
+  it('should support proper toString output for Headers, Response and Request objects', () => {
+    expect(new Headers().toString()).to.equal('[object Headers]')
+    expect(new Response().toString()).to.equal('[object Response]')
+    expect(new Request(base).toString()).to.equal('[object Request]')
+  })
+
+  it('should reject with error if url is protocol relative', () => {
+    const url = '//example.com/'
+    return expect(fetch(url)).to.eventually.be.rejectedWith(TypeError)
+  })
+
+  it('should reject with error if url is relative path', () => {
+    const url = '/some/path'
+    return expect(fetch(url)).to.eventually.be.rejectedWith(TypeError)
+  })
+
+  it('should reject with error if protocol is unsupported', () => {
+    const url = 'ftp://example.com/'
+    return expect(fetch(url)).to.eventually.be.rejectedWith(TypeError)
+  })
+
+  it('should reject with error on network failure', function () {
+    this.timeout(5000)
+    const url = 'http://localhost:50000/'
+    return expect(fetch(url)).to.eventually.be.rejected
+      .and.be.an.instanceOf(TypeError)
+  })
+
+  it('should resolve into response', () => {
+    const url = `${base}hello`
+    return fetch(url).then(res => {
+      expect(res).to.be.an.instanceof(Response)
+      expect(res.headers).to.be.an.instanceof(Headers)
+      expect(res.body).to.be.an.instanceof(ReadableStream)
+      expect(res.bodyUsed).to.be.false
+
+      expect(res.url).to.equal(url)
+      expect(res.ok).to.be.true
+      expect(res.status).to.equal(200)
+      expect(res.statusText).to.equal('OK')
+    })
+  })
+
+  it('Response.redirect should resolve into response', () => {
+    const res = Response.redirect('http://localhost')
+    expect(res).to.be.an.instanceof(Response)
+    expect(res.headers).to.be.an.instanceof(Headers)
+    expect(res.headers.get('location')).to.equal('http://localhost/')
+    expect(res.status).to.equal(302)
+  })
+
+  it('Response.redirect /w invalid url should fail', () => {
+    expect(() => {
+      Response.redirect('localhost')
+    }).to.throw()
+  })
+
+  it('Response.redirect /w invalid status should fail', () => {
+    expect(() => {
+      Response.redirect('http://localhost', 200)
+    }).to.throw()
+  })
+
+  it('should accept plain text response', () => {
+    const url = `${base}plain`
+    return fetch(url).then(res => {
+      expect(res.headers.get('content-type')).to.equal('text/plain')
+      return res.text().then(result => {
+        expect(res.bodyUsed).to.be.true
+        expect(result).to.be.a('string')
+        expect(result).to.equal('text')
+      })
+    })
+  })
+
+  it('should accept html response (like plain text)', () => {
+    const url = `${base}html`
+    return fetch(url).then(res => {
+      expect(res.headers.get('content-type')).to.equal('text/html')
+      return res.text().then(result => {
+        expect(res.bodyUsed).to.be.true
+        expect(result).to.be.a('string')
+        expect(result).to.equal('<html></html>')
+      })
+    })
+  })
+
+  it('should accept json response', () => {
+    const url = `${base}json`
+    return fetch(url).then(res => {
+      expect(res.headers.get('content-type')).to.equal('application/json')
+      return res.json().then(result => {
+        expect(res.bodyUsed).to.be.true
+        expect(result).to.be.an('object')
+        expect(result).to.deep.equal({ name: 'value' })
+      })
+    })
+  })
+
+  it('should send request with custom headers', () => {
+    const url = `${base}inspect`
+    const options = {
+      headers: { 'x-custom-header': 'abc' }
+    }
+    return fetch(url, options).then(res => {
+      return res.json()
+    }).then(res => {
+      expect(res.headers['x-custom-header']).to.equal('abc')
+    })
+  })
+
+  it('should send request with custom headers array', () => {
+    const url = `${base}inspect`
+    const options = {
+      headers: { 'x-custom-header': ['abc'] }
+    }
+    return fetch(url, options).then(res => {
+      return res.json()
+    }).then(res => {
+      expect(res.headers['x-custom-header']).to.equal('abc')
+    })
+  })
+
+  it('should send request with multi-valued headers', () => {
+    const url = `${base}inspect`
+    const options = {
+      headers: { 'x-custom-header': ['abc', '123'] }
+    }
+    return fetch(url, options).then(res => {
+      return res.json()
+    }).then(res => {
+      expect(res.headers['x-custom-header']).to.equal('abc,123')
+    })
+  })
+
+  it('should accept headers instance', () => {
+    const url = `${base}inspect`
+    const options = {
+      headers: new Headers({ 'x-custom-header': 'abc' })
+    }
+    return fetch(url, options).then(res => {
+      return res.json()
+    }).then(res => {
+      expect(res.headers['x-custom-header']).to.equal('abc')
+    })
+  })
+
+  it('should follow redirect code 301', () => {
+    const url = `${base}redirect/301`
+    return fetch(url).then(res => {
+      expect(res.url).to.equal(`${base}inspect`)
+      expect(res.status).to.equal(200)
+      expect(res.ok).to.be.true
+    })
+  })
+
+  it('should follow redirect code 302', () => {
+    const url = `${base}redirect/302`
+    return fetch(url).then(res => {
+      expect(res.url).to.equal(`${base}inspect`)
+      expect(res.status).to.equal(200)
+    })
+  })
+
+  it('should follow redirect code 303', () => {
+    const url = `${base}redirect/303`
+    return fetch(url).then(res => {
+      expect(res.url).to.equal(`${base}inspect`)
+      expect(res.status).to.equal(200)
+    })
+  })
+
+  it('should follow redirect code 307', () => {
+    const url = `${base}redirect/307`
+    return fetch(url).then(res => {
+      expect(res.url).to.equal(`${base}inspect`)
+      expect(res.status).to.equal(200)
+    })
+  })
+
+  it('should follow redirect code 308', () => {
+    const url = `${base}redirect/308`
+    return fetch(url).then(res => {
+      expect(res.url).to.equal(`${base}inspect`)
+      expect(res.status).to.equal(200)
+    })
+  })
+
+  it('should follow redirect chain', () => {
+    const url = `${base}redirect/chain`
+    return fetch(url).then(res => {
+      expect(res.url).to.equal(`${base}inspect`)
+      expect(res.status).to.equal(200)
+    })
+  })
+
+  it('should follow POST request redirect code 301 with GET', () => {
+    const url = `${base}redirect/301`
+    const options = {
+      method: 'POST',
+      body: 'a=1'
+    }
+    return fetch(url, options).then(res => {
+      expect(res.url).to.equal(`${base}inspect`)
+      expect(res.status).to.equal(200)
+      return res.json().then(result => {
+        expect(result.method).to.equal('GET')
+        expect(result.body).to.equal('')
+      })
+    })
+  })
+
+  it('should follow PATCH request redirect code 301 with PATCH', () => {
+    const url = `${base}redirect/301`
+    const options = {
+      method: 'PATCH',
+      body: 'a=1'
+    }
+    return fetch(url, options).then(res => {
+      expect(res.url).to.equal(`${base}inspect`)
+      expect(res.status).to.equal(200)
+      return res.json().then(res => {
+        expect(res.method).to.equal('PATCH')
+        expect(res.body).to.equal('a=1')
+      })
+    })
+  })
+
+  it('should follow POST request redirect code 302 with GET', () => {
+    const url = `${base}redirect/302`
+    const options = {
+      method: 'POST',
+      body: 'a=1'
+    }
+    return fetch(url, options).then(res => {
+      expect(res.url).to.equal(`${base}inspect`)
+      expect(res.status).to.equal(200)
+      return res.json().then(result => {
+        expect(result.method).to.equal('GET')
+        expect(result.body).to.equal('')
+      })
+    })
+  })
+
+  it('should follow PATCH request redirect code 302 with PATCH', () => {
+    const url = `${base}redirect/302`
+    const options = {
+      method: 'PATCH',
+      body: 'a=1'
+    }
+    return fetch(url, options).then(res => {
+      expect(res.url).to.equal(`${base}inspect`)
+      expect(res.status).to.equal(200)
+      return res.json().then(res => {
+        expect(res.method).to.equal('PATCH')
+        expect(res.body).to.equal('a=1')
+      })
+    })
+  })
+
+  it('should follow redirect code 303 with GET', () => {
+    const url = `${base}redirect/303`
+    const options = {
+      method: 'PUT',
+      body: 'a=1'
+    }
+    return fetch(url, options).then(res => {
+      expect(res.url).to.equal(`${base}inspect`)
+      expect(res.status).to.equal(200)
+      return res.json().then(result => {
+        expect(result.method).to.equal('GET')
+        expect(result.body).to.equal('')
+      })
+    })
+  })
+
+  it('should follow PATCH request redirect code 307 with PATCH', () => {
+    const url = `${base}redirect/307`
+    const options = {
+      method: 'PATCH',
+      body: 'a=1'
+    }
+    return fetch(url, options).then(res => {
+      expect(res.url).to.equal(`${base}inspect`)
+      expect(res.status).to.equal(200)
+      return res.json().then(result => {
+        expect(result.method).to.equal('PATCH')
+        expect(result.body).to.equal('a=1')
+      })
+    })
+  })
+
+  it('should not follow non-GET redirect if body is a readable stream', () => {
+    const url = `${base}redirect/307`
+    const options = {
+      method: 'PATCH',
+      body: stream.Readable.from('tada')
+    }
+    return expect(fetch(url, options)).to.eventually.be.rejected
+      .and.be.an.instanceOf(TypeError)
+  })
+
+  it('should obey maximum redirect, reject case', () => {
+    const url = `${base}redirect/chain/20`
+    return expect(fetch(url)).to.eventually.be.rejected
+      .and.be.an.instanceOf(TypeError)
+  })
+
+  it('should obey redirect chain, resolve case', () => {
+    const url = `${base}redirect/chain/19`
+    return fetch(url).then(res => {
+      expect(res.url).to.equal(`${base}inspect`)
+      expect(res.status).to.equal(200)
+    })
+  })
+
+  it('should support redirect mode, error flag', () => {
+    const url = `${base}redirect/301`
+    const options = {
+      redirect: 'error'
+    }
+    return expect(fetch(url, options)).to.eventually.be.rejected
+      .and.be.an.instanceOf(TypeError)
+  })
+
+  it('should support redirect mode, manual flag when there is no redirect', () => {
+    const url = `${base}hello`
+    const options = {
+      redirect: 'manual'
+    }
+    return fetch(url, options).then(res => {
+      expect(res.url).to.equal(url)
+      expect(res.status).to.equal(200)
+      expect(res.headers.get('location')).to.be.null
+    })
+  })
+
+  it('should follow redirect code 301 and keep existing headers', () => {
+    const url = `${base}redirect/301`
+    const options = {
+      headers: new Headers({ 'x-custom-header': 'abc' })
+    }
+    return fetch(url, options).then(res => {
+      expect(res.url).to.equal(`${base}inspect`)
+      return res.json()
+    }).then(res => {
+      expect(res.headers['x-custom-header']).to.equal('abc')
+    })
+  })
+
+  it('should treat broken redirect as ordinary response (follow)', () => {
+    const url = `${base}redirect/no-location`
+    return fetch(url).then(res => {
+      expect(res.url).to.equal(url)
+      expect(res.status).to.equal(301)
+      expect(res.headers.get('location')).to.be.null
+    })
+  })
+
+  it('should treat broken redirect as ordinary response (manual)', () => {
+    const url = `${base}redirect/no-location`
+    const options = {
+      redirect: 'manual'
+    }
+    return fetch(url, options).then(res => {
+      expect(res.url).to.equal(url)
+      expect(res.status).to.equal(301)
+      expect(res.headers.get('location')).to.be.null
+    })
+  })
+
+  it('should throw a TypeError on an invalid redirect option', () => {
+    const url = `${base}redirect/301`
+    const options = {
+      redirect: 'foobar'
+    }
+    return fetch(url, options).then(() => {
+      expect.fail()
+    }, error => {
+      expect(error).to.be.an.instanceOf(TypeError)
+    })
+  })
+
+  it('should set redirected property on response when redirect', () => {
+    const url = `${base}redirect/301`
+    return fetch(url).then(res => {
+      expect(res.redirected).to.be.true
+    })
+  })
+
+  it('should not set redirected property on response without redirect', () => {
+    const url = `${base}hello`
+    return fetch(url).then(res => {
+      expect(res.redirected).to.be.false
+    })
+  })
+
+  it('should handle client-error response', () => {
+    const url = `${base}error/400`
+    return fetch(url).then(res => {
+      expect(res.headers.get('content-type')).to.equal('text/plain')
+      expect(res.status).to.equal(400)
+      expect(res.statusText).to.equal('Bad Request')
+      expect(res.ok).to.be.false
+      return res.text().then(result => {
+        expect(res.bodyUsed).to.be.true
+        expect(result).to.be.a('string')
+        expect(result).to.equal('client error')
+      })
+    })
+  })
+
+  it('should handle server-error response', () => {
+    const url = `${base}error/500`
+    return fetch(url).then(res => {
+      expect(res.headers.get('content-type')).to.equal('text/plain')
+      expect(res.status).to.equal(500)
+      expect(res.statusText).to.equal('Internal Server Error')
+      expect(res.ok).to.be.false
+      return res.text().then(result => {
+        expect(res.bodyUsed).to.be.true
+        expect(result).to.be.a('string')
+        expect(result).to.equal('server error')
+      })
+    })
+  })
+
+  it('should handle network-error response', () => {
+    const url = `${base}error/reset`
+    return expect(fetch(url)).to.eventually.be.rejectedWith(TypeError)
+  })
+
+  it('should handle network-error partial response', () => {
+    const url = `${base}error/premature`
+    return fetch(url).then(res => {
+      expect(res.status).to.equal(200)
+      expect(res.ok).to.be.true
+      return expect(res.text()).to.eventually.be.rejectedWith(Error)
+    })
+  })
+
+  it('should handle network-error in chunked response async iterator', () => {
+    const url = `${base}error/premature/chunked`
+    return fetch(url).then(res => {
+      expect(res.status).to.equal(200)
+      expect(res.ok).to.be.true
+
+      const read = async body => {
+        const chunks = []
+        for await (const chunk of body) {
+          chunks.push(chunk)
+        }
+
+        return chunks
+      }
+
+      return expect(read(res.body))
+        .to.eventually.be.rejectedWith(Error)
+    })
+  })
+
+  it('should handle network-error in chunked response in consumeBody', () => {
+    const url = `${base}error/premature/chunked`
+    return fetch(url).then(res => {
+      expect(res.status).to.equal(200)
+      expect(res.ok).to.be.true
+
+      return expect(res.text()).to.eventually.be.rejectedWith(Error)
+    })
+  })
+
+  it('should handle DNS-error response', () => {
+    const url = 'http://domain.invalid'
+    return expect(fetch(url)).to.eventually.be.rejectedWith(TypeError)
+  })
+
+  it('should reject invalid json response', () => {
+    const url = `${base}error/json`
+    return fetch(url).then(res => {
+      expect(res.headers.get('content-type')).to.equal('application/json')
+      return expect(res.json()).to.eventually.be.rejectedWith(Error)
+    })
+  })
+
+  it('should handle response with no status text', () => {
+    const url = `${base}no-status-text`
+    return fetch(url).then(res => {
+      expect(res.statusText).to.equal('')
+    })
+  })
+
+  it('should handle no content response', () => {
+    const url = `${base}no-content`
+    return fetch(url).then(res => {
+      expect(res.status).to.equal(204)
+      expect(res.statusText).to.equal('No Content')
+      expect(res.ok).to.be.true
+      return res.text().then(result => {
+        expect(result).to.be.a('string')
+        expect(result).to.be.empty
+      })
+    })
+  })
+
+  it('should reject when trying to parse no content response as json', () => {
+    const url = `${base}no-content`
+    return fetch(url).then(res => {
+      expect(res.status).to.equal(204)
+      expect(res.statusText).to.equal('No Content')
+      expect(res.ok).to.be.true
+      return expect(res.json()).to.eventually.be.rejectedWith(Error)
+    })
+  })
+
+  it('should handle no content response with gzip encoding', () => {
+    const url = `${base}no-content/gzip`
+    return fetch(url).then(res => {
+      expect(res.status).to.equal(204)
+      expect(res.statusText).to.equal('No Content')
+      expect(res.headers.get('content-encoding')).to.equal('gzip')
+      expect(res.ok).to.be.true
+      return res.text().then(result => {
+        expect(result).to.be.a('string')
+        expect(result).to.be.empty
+      })
+    })
+  })
+
+  it('should handle not modified response', () => {
+    const url = `${base}not-modified`
+    return fetch(url).then(res => {
+      expect(res.status).to.equal(304)
+      expect(res.statusText).to.equal('Not Modified')
+      expect(res.ok).to.be.false
+      return res.text().then(result => {
+        expect(result).to.be.a('string')
+        expect(result).to.be.empty
+      })
+    })
+  })
+
+  it('should handle not modified response with gzip encoding', () => {
+    const url = `${base}not-modified/gzip`
+    return fetch(url).then(res => {
+      expect(res.status).to.equal(304)
+      expect(res.statusText).to.equal('Not Modified')
+      expect(res.headers.get('content-encoding')).to.equal('gzip')
+      expect(res.ok).to.be.false
+      return res.text().then(result => {
+        expect(result).to.be.a('string')
+        expect(result).to.be.empty
+      })
+    })
+  })
+
+  it('should decompress gzip response', () => {
+    const url = `${base}gzip`
+    return fetch(url).then(res => {
+      expect(res.headers.get('content-type')).to.equal('text/plain')
+      return res.text().then(result => {
+        expect(result).to.be.a('string')
+        expect(result).to.equal('hello world')
+      })
+    })
+  })
+
+  it('should decompress slightly invalid gzip response', async () => {
+    const url = `${base}gzip-truncated`
+    const res = await fetch(url)
+    expect(res.headers.get('content-type')).to.equal('text/plain')
+    const result = await res.text()
+    expect(result).to.be.a('string')
+    expect(result).to.equal('hello world')
+  })
+
+  it('should decompress deflate response', () => {
+    const url = `${base}deflate`
+    return fetch(url).then(res => {
+      expect(res.headers.get('content-type')).to.equal('text/plain')
+      return res.text().then(result => {
+        expect(result).to.be.a('string')
+        expect(result).to.equal('hello world')
+      })
+    })
+  })
+
+  xit('should decompress deflate raw response from old apache server', () => {
+    const url = `${base}deflate-raw`
+    return fetch(url).then(res => {
+      expect(res.headers.get('content-type')).to.equal('text/plain')
+      return res.text().then(result => {
+        expect(result).to.be.a('string')
+        expect(result).to.equal('hello world')
+      })
+    })
+  })
+
+  it('should decompress brotli response', function () {
+    if (typeof zlib.createBrotliDecompress !== 'function') {
+      this.skip()
+    }
+
+    const url = `${base}brotli`
+    return fetch(url).then(res => {
+      expect(res.headers.get('content-type')).to.equal('text/plain')
+      return res.text().then(result => {
+        expect(result).to.be.a('string')
+        expect(result).to.equal('hello world')
+      })
+    })
+  })
+
+  it('should handle no content response with brotli encoding', function () {
+    if (typeof zlib.createBrotliDecompress !== 'function') {
+      this.skip()
+    }
+
+    const url = `${base}no-content/brotli`
+    return fetch(url).then(res => {
+      expect(res.status).to.equal(204)
+      expect(res.statusText).to.equal('No Content')
+      expect(res.headers.get('content-encoding')).to.equal('br')
+      expect(res.ok).to.be.true
+      return res.text().then(result => {
+        expect(result).to.be.a('string')
+        expect(result).to.be.empty
+      })
+    })
+  })
+
+  it('should skip decompression if unsupported', () => {
+    const url = `${base}sdch`
+    return fetch(url).then(res => {
+      expect(res.headers.get('content-type')).to.equal('text/plain')
+      return res.text().then(result => {
+        expect(result).to.be.a('string')
+        expect(result).to.equal('fake sdch string')
+      })
+    })
+  })
+
+  it('should skip decompression if unsupported codings', () => {
+    const url = `${base}multiunsupported`
+    return fetch(url).then(res => {
+      expect(res.headers.get('content-type')).to.equal('text/plain')
+      return res.text().then(result => {
+        expect(result).to.be.a('string')
+        expect(result).to.equal('multiunsupported')
+      })
+    })
+  })
+
+  it('should decompress multiple coding', () => {
+    const url = `${base}multisupported`
+    return fetch(url).then(res => {
+      expect(res.headers.get('content-type')).to.equal('text/plain')
+      return res.text().then(result => {
+        expect(result).to.be.a('string')
+        expect(result).to.equal('hello world')
+      })
+    })
+  })
+
+  it('should reject if response compression is invalid', () => {
+    const url = `${base}invalid-content-encoding`
+    return fetch(url).then(res => {
+      expect(res.headers.get('content-type')).to.equal('text/plain')
+      return expect(res.text()).to.eventually.be.rejected
+    })
+  })
+
+  it('should handle errors on the body stream even if it is not used', done => {
+    const url = `${base}invalid-content-encoding`
+    fetch(url)
+      .then(res => {
+        expect(res.status).to.equal(200)
+      })
+      .catch(() => {})
+      .then(() => {
+        // Wait a few ms to see if a uncaught error occurs
+        setTimeout(() => {
+          done()
+        }, 20)
+      })
+  })
+
+  it('should collect handled errors on the body stream to reject if the body is used later', () => {
+    const url = `${base}invalid-content-encoding`
+    return fetch(url).then(delay(20)).then(res => {
+      expect(res.headers.get('content-type')).to.equal('text/plain')
+      return expect(res.text()).to.eventually.be.rejected
+    })
+  })
+
+  it('should not overwrite existing accept-encoding header when auto decompression is true', () => {
+    const url = `${base}inspect`
+    const options = {
+      compress: true,
+      headers: {
+        'Accept-Encoding': 'gzip'
+      }
+    }
+    return fetch(url, options).then(res => res.json()).then(res => {
+      expect(res.headers['accept-encoding']).to.equal('gzip')
+    })
+  })
+
+  describe('AbortController', () => {
+    let controller
+
+    beforeEach(() => {
+      controller = new AbortController()
+    })
+
+    it('should support request cancellation with signal', () => {
+      const fetches = [
+        fetch(
+          `${base}timeout`,
+          {
+            method: 'POST',
+            signal: controller.signal,
+            headers: {
+              'Content-Type': 'application/json',
+              body: JSON.stringify({ hello: 'world' })
+            }
+          }
+        )
+      ]
+
+      controller.abort()
+
+      return Promise.all(fetches.map(fetched => expect(fetched)
+        .to.eventually.be.rejected
+        .and.be.an.instanceOf(Error)
+        .and.have.property('name', 'AbortError')
+      ))
+    })
+
+    it('should support multiple request cancellation with signal', () => {
+      const fetches = [
+        fetch(`${base}timeout`, { signal: controller.signal }),
+        fetch(
+          `${base}timeout`,
+          {
+            method: 'POST',
+            signal: controller.signal,
+            headers: {
+              'Content-Type': 'application/json',
+              body: JSON.stringify({ hello: 'world' })
+            }
+          }
+        )
+      ]
+
+      controller.abort()
+
+      return Promise.all(fetches.map(fetched => expect(fetched)
+        .to.eventually.be.rejected
+        .and.be.an.instanceOf(Error)
+        .and.have.property('name', 'AbortError')
+      ))
+    })
+
+    it('should reject immediately if signal has already been aborted', () => {
+      const url = `${base}timeout`
+      const options = {
+        signal: controller.signal
+      }
+      controller.abort()
+      const fetched = fetch(url, options)
+      return expect(fetched).to.eventually.be.rejected
+        .and.be.an.instanceOf(Error)
+        .and.have.property('name', 'AbortError')
+    })
+
+    it('should allow redirects to be aborted', () => {
+      const request = new Request(`${base}redirect/slow`, {
+        signal: controller.signal
+      })
+      setTimeout(() => {
+        controller.abort()
+      }, 20)
+      return expect(fetch(request)).to.be.eventually.rejected
+        .and.be.an.instanceOf(Error)
+        .and.have.property('name', 'AbortError')
+    })
+
+    it('should allow redirected response body to be aborted', () => {
+      const request = new Request(`${base}redirect/slow-stream`, {
+        signal: controller.signal
+      })
+      return expect(fetch(request).then(res => {
+        expect(res.headers.get('content-type')).to.equal('text/plain')
+        const result = res.text()
+        controller.abort()
+        return result
+      })).to.be.eventually.rejected
+        .and.be.an.instanceOf(Error)
+        .and.have.property('name', 'AbortError')
+    })
+
+    it('should reject response body with AbortError when aborted before stream has been read completely', () => {
+      return expect(fetch(
+        `${base}slow`,
+        { signal: controller.signal }
+      ))
+        .to.eventually.be.fulfilled
+        .then(res => {
+          const promise = res.text()
+          controller.abort()
+          return expect(promise)
+            .to.eventually.be.rejected
+            .and.be.an.instanceof(Error)
+            .and.have.property('name', 'AbortError')
+        })
+    })
+
+    it('should reject response body methods immediately with AbortError when aborted before stream is disturbed', () => {
+      return expect(fetch(
+        `${base}slow`,
+        { signal: controller.signal }
+      ))
+        .to.eventually.be.fulfilled
+        .then(res => {
+          controller.abort()
+          return expect(res.text())
+            .to.eventually.be.rejected
+            .and.be.an.instanceof(Error)
+            .and.have.property('name', 'AbortError')
+        })
+    })
+  })
+
+  it('should throw a TypeError if a signal is not of type AbortSignal or EventTarget', () => {
+    return Promise.all([
+      expect(fetch(`${base}inspect`, { signal: {} }))
+        .to.be.eventually.rejected
+        .and.be.an.instanceof(TypeError),
+      expect(fetch(`${base}inspect`, { signal: '' }))
+        .to.be.eventually.rejected
+        .and.be.an.instanceof(TypeError),
+      expect(fetch(`${base}inspect`, { signal: Object.create(null) }))
+        .to.be.eventually.rejected
+        .and.be.an.instanceof(TypeError)
+    ])
+  })
+
+  it('should gracefully handle a null signal', () => {
+    return fetch(`${base}hello`, { signal: null }).then(res => {
+      return expect(res.ok).to.be.true
+    })
+  })
+
+  it('should allow setting User-Agent', () => {
+    const url = `${base}inspect`
+    const options = {
+      headers: {
+        'user-agent': 'faked'
+      }
+    }
+    return fetch(url, options).then(res => res.json()).then(res => {
+      expect(res.headers['user-agent']).to.equal('faked')
+    })
+  })
+
+  it('should set default Accept header', () => {
+    const url = `${base}inspect`
+    fetch(url).then(res => res.json()).then(res => {
+      expect(res.headers.accept).to.equal('*/*')
+    })
+  })
+
+  it('should allow setting Accept header', () => {
+    const url = `${base}inspect`
+    const options = {
+      headers: {
+        accept: 'application/json'
+      }
+    }
+    return fetch(url, options).then(res => res.json()).then(res => {
+      expect(res.headers.accept).to.equal('application/json')
+    })
+  })
+
+  it('should allow POST request', () => {
+    const url = `${base}inspect`
+    const options = {
+      method: 'POST'
+    }
+    return fetch(url, options).then(res => {
+      return res.json()
+    }).then(res => {
+      expect(res.method).to.equal('POST')
+      expect(res.headers['transfer-encoding']).to.be.undefined
+      expect(res.headers['content-type']).to.be.undefined
+      expect(res.headers['content-length']).to.equal('0')
+    })
+  })
+
+  it('should allow POST request with string body', () => {
+    const url = `${base}inspect`
+    const options = {
+      method: 'POST',
+      body: 'a=1'
+    }
+    return fetch(url, options).then(res => {
+      return res.json()
+    }).then(res => {
+      expect(res.method).to.equal('POST')
+      expect(res.body).to.equal('a=1')
+      expect(res.headers['transfer-encoding']).to.be.undefined
+      expect(res.headers['content-type']).to.equal('text/plain;charset=UTF-8')
+      expect(res.headers['content-length']).to.equal('3')
+    })
+  })
+
+  it('should allow POST request with buffer body', () => {
+    const url = `${base}inspect`
+    const options = {
+      method: 'POST',
+      body: Buffer.from('a=1', 'utf-8')
+    }
+    return fetch(url, options).then(res => {
+      return res.json()
+    }).then(res => {
+      expect(res.method).to.equal('POST')
+      expect(res.body).to.equal('a=1')
+      expect(res.headers['transfer-encoding']).to.be.undefined
+      expect(res.headers['content-type']).to.be.undefined
+      expect(res.headers['content-length']).to.equal('3')
+    })
+  })
+
+  it('should allow POST request with ArrayBuffer body', () => {
+    const encoder = new TextEncoder()
+    const url = `${base}inspect`
+    const options = {
+      method: 'POST',
+      body: encoder.encode('Hello, world!\n').buffer
+    }
+    return fetch(url, options).then(res => res.json()).then(res => {
+      expect(res.method).to.equal('POST')
+      expect(res.body).to.equal('Hello, world!\n')
+      expect(res.headers['transfer-encoding']).to.be.undefined
+      expect(res.headers['content-type']).to.be.undefined
+      expect(res.headers['content-length']).to.equal('14')
+    })
+  })
+
+  it('should allow POST request with ArrayBuffer body from a VM context', () => {
+    const url = `${base}inspect`
+    const options = {
+      method: 'POST',
+      body: new VMUint8Array(Buffer.from('Hello, world!\n')).buffer
+    }
+    return fetch(url, options).then(res => res.json()).then(res => {
+      expect(res.method).to.equal('POST')
+      expect(res.body).to.equal('Hello, world!\n')
+      expect(res.headers['transfer-encoding']).to.be.undefined
+      expect(res.headers['content-type']).to.be.undefined
+      expect(res.headers['content-length']).to.equal('14')
+    })
+  })
+
+  it('should allow POST request with ArrayBufferView (Uint8Array) body', () => {
+    const encoder = new TextEncoder()
+    const url = `${base}inspect`
+    const options = {
+      method: 'POST',
+      body: encoder.encode('Hello, world!\n')
+    }
+    return fetch(url, options).then(res => res.json()).then(res => {
+      expect(res.method).to.equal('POST')
+      expect(res.body).to.equal('Hello, world!\n')
+      expect(res.headers['transfer-encoding']).to.be.undefined
+      expect(res.headers['content-type']).to.be.undefined
+      expect(res.headers['content-length']).to.equal('14')
+    })
+  })
+
+  it('should allow POST request with ArrayBufferView (BigUint64Array) body', () => {
+    const encoder = new TextEncoder()
+    const url = `${base}inspect`
+    const options = {
+      method: 'POST',
+      body: new BigUint64Array(encoder.encode('0123456789abcdef').buffer)
+    }
+    return fetch(url, options).then(res => res.json()).then(res => {
+      expect(res.method).to.equal('POST')
+      expect(res.body).to.equal('0123456789abcdef')
+      expect(res.headers['transfer-encoding']).to.be.undefined
+      expect(res.headers['content-type']).to.be.undefined
+      expect(res.headers['content-length']).to.equal('16')
+    })
+  })
+
+  it('should allow POST request with ArrayBufferView (DataView) body', () => {
+    const encoder = new TextEncoder()
+    const url = `${base}inspect`
+    const options = {
+      method: 'POST',
+      body: new DataView(encoder.encode('Hello, world!\n').buffer)
+    }
+    return fetch(url, options).then(res => res.json()).then(res => {
+      expect(res.method).to.equal('POST')
+      expect(res.body).to.equal('Hello, world!\n')
+      expect(res.headers['transfer-encoding']).to.be.undefined
+      expect(res.headers['content-type']).to.be.undefined
+      expect(res.headers['content-length']).to.equal('14')
+    })
+  })
+
+  it('should allow POST request with ArrayBufferView (Uint8Array) body from a VM context', () => {
+    const url = `${base}inspect`
+    const options = {
+      method: 'POST',
+      body: new VMUint8Array(Buffer.from('Hello, world!\n'))
+    }
+    return fetch(url, options).then(res => res.json()).then(res => {
+      expect(res.method).to.equal('POST')
+      expect(res.body).to.equal('Hello, world!\n')
+      expect(res.headers['transfer-encoding']).to.be.undefined
+      expect(res.headers['content-type']).to.be.undefined
+      expect(res.headers['content-length']).to.equal('14')
+    })
+  })
+
+  it('should allow POST request with ArrayBufferView (Uint8Array, offset, length) body', () => {
+    const encoder = new TextEncoder()
+    const url = `${base}inspect`
+    const options = {
+      method: 'POST',
+      body: encoder.encode('Hello, world!\n').subarray(7, 13)
+    }
+    return fetch(url, options).then(res => res.json()).then(res => {
+      expect(res.method).to.equal('POST')
+      expect(res.body).to.equal('world!')
+      expect(res.headers['transfer-encoding']).to.be.undefined
+      expect(res.headers['content-type']).to.be.undefined
+      expect(res.headers['content-length']).to.equal('6')
+    })
+  })
+
+  it('should allow POST request with blob body without type', () => {
+    const url = `${base}inspect`
+    const options = {
+      method: 'POST',
+      body: new Blob(['a=1'])
+    }
+    return fetch(url, options).then(res => {
+      return res.json()
+    }).then(res => {
+      expect(res.method).to.equal('POST')
+      expect(res.body).to.equal('a=1')
+      expect(res.headers['transfer-encoding']).to.be.undefined
+      // expect(res.headers['content-type']).to.be.undefined
+      expect(res.headers['content-length']).to.equal('3')
+    })
+  })
+
+  it('should allow POST request with blob body with type', () => {
+    const url = `${base}inspect`
+    const options = {
+      method: 'POST',
+      body: new Blob(['a=1'], {
+        type: 'text/plain;charset=UTF-8'
+      })
+    }
+    return fetch(url, options).then(res => {
+      return res.json()
+    }).then(res => {
+      expect(res.method).to.equal('POST')
+      expect(res.body).to.equal('a=1')
+      expect(res.headers['transfer-encoding']).to.be.undefined
+      expect(res.headers['content-type']).to.equal('text/plain;charset=utf-8')
+      expect(res.headers['content-length']).to.equal('3')
+    })
+  })
+
+  it('should allow POST request with readable stream as body', () => {
+    const url = `${base}inspect`
+    const options = {
+      method: 'POST',
+      body: stream.Readable.from('a=1'),
+      duplex: 'half'
+    }
+    return fetch(url, options).then(res => {
+      return res.json()
+    }).then(res => {
+      expect(res.method).to.equal('POST')
+      expect(res.body).to.equal('a=1')
+      expect(res.headers['transfer-encoding']).to.equal('chunked')
+      expect(res.headers['content-type']).to.be.undefined
+      expect(res.headers['content-length']).to.be.undefined
+    })
+  })
+
+  it('should allow POST request with object body', () => {
+    const url = `${base}inspect`
+    // Note that fetch simply calls tostring on an object
+    const options = {
+      method: 'POST',
+      body: { a: 1 }
+    }
+    return fetch(url, options).then(res => {
+      return res.json()
+    }).then(res => {
+      expect(res.method).to.equal('POST')
+      expect(res.body).to.equal('[object Object]')
+      expect(res.headers['content-type']).to.equal('text/plain;charset=UTF-8')
+      expect(res.headers['content-length']).to.equal('15')
+    })
+  })
+
+  it('should allow POST request with form-data as body', () => {
+    const form = new FormData()
+    form.append('a', '1')
+
+    const url = `${base}multipart`
+    const options = {
+      method: 'POST',
+      body: form
+    }
+    return fetch(url, options).then(res => {
+      return res.json()
+    }).then(res => {
+      expect(res.method).to.equal('POST')
+      expect(res.headers['content-type']).to.startWith('multipart/form-data; boundary=')
+      expect(res.body).to.equal('a=1')
+    })
+  })
+
+  it('constructing a Response with URLSearchParams as body should have a Content-Type', () => {
+    const parameters = new URLSearchParams()
+    const res = new Response(parameters)
+    res.headers.get('Content-Type')
+    expect(res.headers.get('Content-Type')).to.equal('application/x-www-form-urlencoded;charset=UTF-8')
+  })
+
+  it('constructing a Request with URLSearchParams as body should have a Content-Type', () => {
+    const parameters = new URLSearchParams()
+    const request = new Request(base, { method: 'POST', body: parameters })
+    expect(request.headers.get('Content-Type')).to.equal('application/x-www-form-urlencoded;charset=UTF-8')
+  })
+
+  it('Reading a body with URLSearchParams should echo back the result', () => {
+    const parameters = new URLSearchParams()
+    parameters.append('a', '1')
+    return new Response(parameters).text().then(text => {
+      expect(text).to.equal('a=1')
+    })
+  })
+
+  // Body should been cloned...
+  it('constructing a Request/Response with URLSearchParams and mutating it should not affected body', () => {
+    const parameters = new URLSearchParams()
+    const request = new Request(`${base}inspect`, { method: 'POST', body: parameters })
+    parameters.append('a', '1')
+    return request.text().then(text => {
+      expect(text).to.equal('')
+    })
+  })
+
+  it('should allow POST request with URLSearchParams as body', () => {
+    const parameters = new URLSearchParams()
+    parameters.append('a', '1')
+
+    const url = `${base}inspect`
+    const options = {
+      method: 'POST',
+      body: parameters
+    }
+    return fetch(url, options).then(res => {
+      return res.json()
+    }).then(res => {
+      expect(res.method).to.equal('POST')
+      expect(res.headers['content-type']).to.equal('application/x-www-form-urlencoded;charset=UTF-8')
+      expect(res.headers['content-length']).to.equal('3')
+      expect(res.body).to.equal('a=1')
+    })
+  })
+
+  it('should still recognize URLSearchParams when extended', () => {
+    class CustomSearchParameters extends URLSearchParams {}
+    const parameters = new CustomSearchParameters()
+    parameters.append('a', '1')
+
+    const url = `${base}inspect`
+    const options = {
+      method: 'POST',
+      body: parameters
+    }
+    return fetch(url, options).then(res => {
+      return res.json()
+    }).then(res => {
+      expect(res.method).to.equal('POST')
+      expect(res.headers['content-type']).to.equal('application/x-www-form-urlencoded;charset=UTF-8')
+      expect(res.headers['content-length']).to.equal('3')
+      expect(res.body).to.equal('a=1')
+    })
+  })
+
+  it('should allow PUT request', () => {
+    const url = `${base}inspect`
+    const options = {
+      method: 'PUT',
+      body: 'a=1'
+    }
+    return fetch(url, options).then(res => {
+      return res.json()
+    }).then(res => {
+      expect(res.method).to.equal('PUT')
+      expect(res.body).to.equal('a=1')
+    })
+  })
+
+  it('should allow DELETE request', () => {
+    const url = `${base}inspect`
+    const options = {
+      method: 'DELETE'
+    }
+    return fetch(url, options).then(res => {
+      return res.json()
+    }).then(res => {
+      expect(res.method).to.equal('DELETE')
+    })
+  })
+
+  it('should allow DELETE request with string body', () => {
+    const url = `${base}inspect`
+    const options = {
+      method: 'DELETE',
+      body: 'a=1'
+    }
+    return fetch(url, options).then(res => {
+      return res.json()
+    }).then(res => {
+      expect(res.method).to.equal('DELETE')
+      expect(res.body).to.equal('a=1')
+      expect(res.headers['transfer-encoding']).to.be.undefined
+      expect(res.headers['content-length']).to.equal('3')
+    })
+  })
+
+  it('should allow PATCH request', () => {
+    const url = `${base}inspect`
+    const options = {
+      method: 'PATCH',
+      body: 'a=1'
+    }
+    return fetch(url, options).then(res => {
+      return res.json()
+    }).then(res => {
+      expect(res.method).to.equal('PATCH')
+      expect(res.body).to.equal('a=1')
+    })
+  })
+
+  it('should allow HEAD request', () => {
+    const url = `${base}hello`
+    const options = {
+      method: 'HEAD'
+    }
+    return fetch(url, options).then(res => {
+      expect(res.status).to.equal(200)
+      expect(res.statusText).to.equal('OK')
+      expect(res.headers.get('content-type')).to.equal('text/plain')
+      // expect(res.body).to.be.an.instanceof(stream.Transform)
+      return res.text()
+    }).then(text => {
+      expect(text).to.equal('')
+    })
+  })
+
+  it('should allow HEAD request with content-encoding header', () => {
+    const url = `${base}error/404`
+    const options = {
+      method: 'HEAD'
+    }
+    return fetch(url, options).then(res => {
+      expect(res.status).to.equal(404)
+      expect(res.headers.get('content-encoding')).to.equal('gzip')
+      return res.text()
+    }).then(text => {
+      expect(text).to.equal('')
+    })
+  })
+
+  it('should allow OPTIONS request', () => {
+    const url = `${base}options`
+    const options = {
+      method: 'OPTIONS'
+    }
+    return fetch(url, options).then(res => {
+      expect(res.status).to.equal(200)
+      expect(res.statusText).to.equal('OK')
+      expect(res.headers.get('allow')).to.equal('GET, HEAD, OPTIONS')
+      // expect(res.body).to.be.an.instanceof(stream.Transform)
+    })
+  })
+
+  it('should reject decoding body twice', () => {
+    const url = `${base}plain`
+    return fetch(url).then(res => {
+      expect(res.headers.get('content-type')).to.equal('text/plain')
+      return res.text().then(() => {
+        expect(res.bodyUsed).to.be.true
+        return expect(res.text()).to.eventually.be.rejectedWith(Error)
+      })
+    })
+  })
+
+  it('should allow cloning a json response and log it as text response', () => {
+    const url = `${base}json`
+    return fetch(url).then(res => {
+      const r1 = res.clone()
+      return Promise.all([res.json(), r1.text()]).then(results => {
+        expect(results[0]).to.deep.equal({ name: 'value' })
+        expect(results[1]).to.equal('{"name":"value"}')
+      })
+    })
+  })
+
+  it('should allow cloning a json response, and then log it as text response', () => {
+    const url = `${base}json`
+    return fetch(url).then(res => {
+      const r1 = res.clone()
+      return res.json().then(result => {
+        expect(result).to.deep.equal({ name: 'value' })
+        return r1.text().then(result => {
+          expect(result).to.equal('{"name":"value"}')
+        })
+      })
+    })
+  })
+
+  it('should allow cloning a json response, first log as text response, then return json object', () => {
+    const url = `${base}json`
+    return fetch(url).then(res => {
+      const r1 = res.clone()
+      return r1.text().then(result => {
+        expect(result).to.equal('{"name":"value"}')
+        return res.json().then(result => {
+          expect(result).to.deep.equal({ name: 'value' })
+        })
+      })
+    })
+  })
+
+  it('should not allow cloning a response after its been used', () => {
+    const url = `${base}hello`
+    return fetch(url).then(res =>
+      res.text().then(() => {
+        expect(() => {
+          res.clone()
+        }).to.throw(Error)
+      })
+    )
+  })
+
+  xit('should timeout on cloning response without consuming one of the streams when the second packet size is equal default highWaterMark', function () {
+    this.timeout(300)
+    const url = local.mockState(res => {
+      // Observed behavior of TCP packets splitting:
+      // - response body size <= 65438 → single packet sent
+      // - response body size  > 65438 → multiple packets sent
+      // Max TCP packet size is 64kB (http://stackoverflow.com/a/2614188/5763764),
+      // but first packet probably transfers more than the response body.
+      const firstPacketMaxSize = 65438
+      const secondPacketSize = 16 * 1024 // = defaultHighWaterMark
+      res.end(crypto.randomBytes(firstPacketMaxSize + secondPacketSize))
+    })
+    return expect(
+      fetch(url).then(res => res.clone().buffer())
+    ).to.timeout
+  })
+
+  xit('should timeout on cloning response without consuming one of the streams when the second packet size is equal custom highWaterMark', function () {
+    this.timeout(300)
+    const url = local.mockState(res => {
+      const firstPacketMaxSize = 65438
+      const secondPacketSize = 10
+      res.end(crypto.randomBytes(firstPacketMaxSize + secondPacketSize))
+    })
+    return expect(
+      fetch(url, { highWaterMark: 10 }).then(res => res.clone().buffer())
+    ).to.timeout
+  })
+
+  xit('should not timeout on cloning response without consuming one of the streams when the second packet size is less than default highWaterMark', function () {
+    // TODO: fix test.
+    if (!isNodeLowerThan('v16.0.0')) {
+      this.skip()
+    }
+
+    this.timeout(300)
+    const url = local.mockState(res => {
+      const firstPacketMaxSize = 65438
+      const secondPacketSize = 16 * 1024 // = defaultHighWaterMark
+      res.end(crypto.randomBytes(firstPacketMaxSize + secondPacketSize - 1))
+    })
+    return expect(
+      fetch(url).then(res => res.clone().buffer())
+    ).not.to.timeout
+  })
+
+  xit('should not timeout on cloning response without consuming one of the streams when the second packet size is less than custom highWaterMark', function () {
+    // TODO: fix test.
+    if (!isNodeLowerThan('v16.0.0')) {
+      this.skip()
+    }
+
+    this.timeout(300)
+    const url = local.mockState(res => {
+      const firstPacketMaxSize = 65438
+      const secondPacketSize = 10
+      res.end(crypto.randomBytes(firstPacketMaxSize + secondPacketSize - 1))
+    })
+    return expect(
+      fetch(url, { highWaterMark: 10 }).then(res => res.clone().buffer())
+    ).not.to.timeout
+  })
+
+  xit('should not timeout on cloning response without consuming one of the streams when the response size is double the custom large highWaterMark - 1', function () {
+    // TODO: fix test.
+    if (!isNodeLowerThan('v16.0.0')) {
+      this.skip()
+    }
+
+    this.timeout(300)
+    const url = local.mockState(res => {
+      res.end(crypto.randomBytes((2 * 512 * 1024) - 1))
+    })
+    return expect(
+      fetch(url, { highWaterMark: 512 * 1024 }).then(res => res.clone().buffer())
+    ).not.to.timeout
+  })
+
+  xit('should allow get all responses of a header', () => {
+    // TODO: fix test.
+    const url = `${base}cookie`
+    return fetch(url).then(res => {
+      const expected = 'a=1, b=1'
+      expect(res.headers.get('set-cookie')).to.equal(expected)
+      expect(res.headers.get('Set-Cookie')).to.equal(expected)
+    })
+  })
+
+  it('should support fetch with Request instance', () => {
+    const url = `${base}hello`
+    const request = new Request(url)
+    return fetch(request).then(res => {
+      expect(res.url).to.equal(url)
+      expect(res.ok).to.be.true
+      expect(res.status).to.equal(200)
+    })
+  })
+
+  it('should support fetch with Node.js URL object', () => {
+    const url = `${base}hello`
+    const urlObject = new URL(url)
+    const request = new Request(urlObject)
+    return fetch(request).then(res => {
+      expect(res.url).to.equal(url)
+      expect(res.ok).to.be.true
+      expect(res.status).to.equal(200)
+    })
+  })
+
+  it('should support fetch with WHATWG URL object', () => {
+    const url = `${base}hello`
+    const urlObject = new URL(url)
+    const request = new Request(urlObject)
+    return fetch(request).then(res => {
+      expect(res.url).to.equal(url)
+      expect(res.ok).to.be.true
+      expect(res.status).to.equal(200)
+    })
+  })
+
+  it('if params are given, do not modify anything', () => {
+    const url = `${base}question?a=1`
+    const urlObject = new URL(url)
+    const request = new Request(urlObject)
+    return fetch(request).then(res => {
+      expect(res.url).to.equal(url)
+      expect(res.ok).to.be.true
+      expect(res.status).to.equal(200)
+    })
+  })
+
+  it('should support reading blob as text', () => {
+    return new Response('hello')
+      .blob()
+      .then(blob => blob.text())
+      .then(body => {
+        expect(body).to.equal('hello')
+      })
+  })
+
+  it('should support reading blob as arrayBuffer', () => {
+    return new Response('hello')
+      .blob()
+      .then(blob => blob.arrayBuffer())
+      .then(ab => {
+        const string = String.fromCharCode.apply(null, new Uint8Array(ab))
+        expect(string).to.equal('hello')
+      })
+  })
+
+  it('should support blob round-trip', () => {
+    const url = `${base}hello`
+
+    let length
+    let type
+
+    return fetch(url).then(res => res.blob()).then(async blob => {
+      const url = `${base}inspect`
+      length = blob.size
+      type = blob.type
+      return fetch(url, {
+        method: 'POST',
+        body: blob
+      })
+    }).then(res => res.json()).then(({ body, headers }) => {
+      expect(body).to.equal('world')
+      expect(headers['content-type']).to.equal(type)
+      expect(headers['content-length']).to.equal(String(length))
+    })
+  })
+
+  it('should support overwrite Request instance', () => {
+    const url = `${base}inspect`
+    const request = new Request(url, {
+      method: 'POST',
+      headers: {
+        a: '1'
+      }
+    })
+    return fetch(request, {
+      method: 'GET',
+      headers: {
+        a: '2'
+      }
+    }).then(res => {
+      return res.json()
+    }).then(body => {
+      expect(body.method).to.equal('GET')
+      expect(body.headers.a).to.equal('2')
+    })
+  })
+
+  it('should support http request', function () {
+    this.timeout(5000)
+    const url = 'https://github.com/'
+    const options = {
+      method: 'HEAD'
+    }
+    return fetch(url, options).then(res => {
+      expect(res.status).to.equal(200)
+      expect(res.ok).to.be.true
+    })
+  })
+
+  it('should encode URLs as UTF-8', async () => {
+    const url = `${base}möbius`
+    const res = await fetch(url)
+    expect(res.url).to.equal(`${base}m%C3%B6bius`)
+  })
+
+  it('should allow manual redirect handling', function () {
+    this.timeout(5000)
+    const url = `${base}redirect/302`
+    const options = {
+      redirect: 'manual'
+    }
+    return fetch(url, options).then(res => {
+      expect(res.status).to.equal(302)
+      expect(res.url).to.equal(url)
+      expect(res.type).to.equal('basic')
+      expect(res.headers.get('Location')).to.equal('/inspect')
+      expect(res.ok).to.be.false
+    })
+  })
+})