test: add tests for abort after connect (#49)

src/dial-test.js

@@ -53,7 +53,7 @@ module.exports = (common) => {
       expect.fail('Did not throw error attempting to connect to non-existent listener')
     })
 
-    it('cancel before dialing', async () => {
+    it('abort before dialing throws AbortError', async () => {
       const controller = new AbortController()
       controller.abort()
       const socket = transport.dial(addrs[0], { signal: controller.signal })
@@ -68,8 +68,8 @@ module.exports = (common) => {
       expect.fail('Did not throw error with code ' + AbortError.code)
     })
 
-    it('cancel while dialing', async () => {
-      // Add a delay to connect() so that we can cancel while the dial is in
+    it('abort while dialing throws AbortError', async () => {
+      // Add a delay to connect() so that we can abort while the dial is in
       // progress
       connector.delay(100)
 
@@ -88,5 +88,76 @@ module.exports = (common) => {
       }
       expect.fail('Did not throw error with code ' + AbortError.code)
     })
+
+    it('abort while reading throws AbortError', async () => {
+      // Add a delay to the response from the server
+      async function * delayedResponse (source) {
+        for await (const val of source) {
+          await new Promise((resolve) => setTimeout(resolve, 1000))
+          yield val
+        }
+      }
+      const delayedListener = transport.createListener(async (conn) => {
+        await pipe(conn, delayedResponse, conn)
+      })
+      await delayedListener.listen(addrs[1])
+
+      // Create an abort signal and dial the socket
+      const controller = new AbortController()
+      const socket = await transport.dial(addrs[1], { signal: controller.signal })
+
+      try {
+        // Set a timeout to abort before the server responds
+        setTimeout(() => controller.abort(), 100)
+
+        // An AbortError should be thrown before the pipe completes
+        const s = goodbye({ source: ['hey'], sink: collect })
+        await pipe(s, socket, s)
+      } catch (err) {
+        expect(err.code).to.eql(AbortError.code)
+        expect(err.type).to.eql(AbortError.type)
+        return
+      } finally {
+        await delayedListener.close()
+      }
+      expect.fail('Did not throw error with code ' + AbortError.code)
+    })
+
+    it('abort while writing does not throw AbortError', async () => {
+      // Record values received by the listener
+      const recorded = []
+      async function * recorderTransform (source) {
+        for await (const val of source) {
+          recorded.push(val)
+          yield val
+        }
+      }
+      const recordListener = transport.createListener(async (conn) => {
+        await pipe(conn, recorderTransform, conn)
+      })
+      await recordListener.listen(addrs[1])
+
+      // Create an abort signal and dial the socket
+      const controller = new AbortController()
+      const socket = await transport.dial(addrs[1], { signal: controller.signal })
+
+      // Set a timeout to abort before writing has completed
+      setTimeout(() => controller.abort(), 100)
+
+      try {
+        // The pipe should write to the socket until aborted
+        await pipe(
+          async function * () {
+            yield 'hey'
+            await new Promise((resolve) => setTimeout(resolve, 200))
+            yield 'there'
+          },
+          socket)
+        expect(recorded.length).to.eql(1)
+        expect(recorded[0].toString()).to.eql('hey')
+      } finally {
+        await recordListener.close()
+      }
+    })
   })
 }