fix(wpt): broken test (nodejs#1683)

* fix(wpt): broken test

* fix: failing node-fetch tests

* fix: more failing tests

Author: KhafraDev

lib/fetch/request.js

@@ -949,11 +949,7 @@ webidl.converters.RequestInit = webidl.dictionaryConverter([
   {
     key: 'duplex',
     converter: webidl.converters.DOMString,
-    allowedValues: ['half'],
-    // TODO(@KhafraDev): this behavior is incorrect, but
-    // without it, a WPT throws with an uncaught exception,
-    // causing the entire WPT runner to crash.
-    defaultValue: 'half'
+    allowedValues: ['half']
   }
 ])
 

test/fetch/client-fetch.js

@@ -111,7 +111,8 @@ test('pre aborted with readable request body', (t) => {
         async cancel (reason) {
           t.equal(reason.name, 'AbortError')
         }
-      })
+      }),
+      duplex: 'half'
     }).catch(err => {
       t.equal(err.name, 'AbortError')
     })
@@ -141,7 +142,8 @@ test('pre aborted with closed readable request body', (t) => {
       fetch(`http://localhost:${server.address().port}`, {
         signal: ac.signal,
         method: 'POST',
-        body
+        body,
+        duplex: 'half'
       }).catch(err => {
         t.equal(err.name, 'AbortError')
       })

test/node-fetch/main.js

@@ -1135,7 +1135,8 @@ describe('node-fetch', () => {
     const url = `${base}inspect`
     const options = {
       method: 'POST',
-      body: stream.Readable.from('a=1')
+      body: stream.Readable.from('a=1'),
+      duplex: 'half'
     }
     return fetch(url, options).then(res => {
       return res.json()

test/node-fetch/request.js

@@ -207,7 +207,8 @@ describe('Request', () => {
       follow: 3,
       compress: false,
       agent,
-      signal
+      signal,
+      duplex: 'half'
     })
     const cl = request.clone()
     expect(cl.url).to.equal(url)

test/wpt/status/fetch.status.json

@@ -1,9 +1,4 @@
 {
-	"request-init-stream.any.js": {
-		"fail": [
-			"It is error to omit .duplex when the body is a ReadableStream."
-		]
-	},
 	"general.any.js": {
 		"fail": [
 			"Stream errors once aborted. Underlying connection closed.",

test/wpt/tests/fetch/api/abort/general.any.js

@@ -490,6 +490,7 @@ promise_test(async t => {
   const fetchPromise = fetch('../resources/empty.txt', {
     body, signal,
     method: 'POST',
+    duplex: 'half',
     headers: {
       'Content-Type': 'text/plain'
     }