First pass at support for TCP servers and clients. (#884)

Adds deno.listen(), deno.dial(), deno.Listener and deno.Conn.

1 files changed, 37 insertions, 0 deletions

diff --git a/js/net_test.ts b/js/net_test.ts
new file mode 100644
index 000000000..0b6db7afa
--- /dev/null
+++ b/js/net_test.ts
@@ -0,0 +1,37 @@
+// Copyright 2018 the Deno authors. All rights reserved. MIT license.
+
+import * as deno from "deno";
+import { testPerm, assert, assertEqual } from "./test_util.ts";
+
+testPerm({ net: true }, function netListenClose() {
+  const listener = deno.listen("tcp", "127.0.0.1:4500");
+  listener.close();
+});
+
+testPerm({ net: true }, async function netDialListen() {
+  let addr = "127.0.0.1:4500";
+  const listener = deno.listen("tcp", addr);
+  listener.accept().then(async conn => {
+    await conn.write(new Uint8Array([1, 2, 3]));
+    conn.close();
+  });
+  const conn = await deno.dial("tcp", addr);
+  const buf = new Uint8Array(1024);
+  const readResult = await conn.read(buf);
+  assertEqual(3, readResult.nread);
+  assertEqual(1, buf[0]);
+  assertEqual(2, buf[1]);
+  assertEqual(3, buf[2]);
+
+  // TODO Currently ReadResult does not properly transmit EOF in the same call.
+  // it requires a second call to get the EOF. Either ReadResult to be an
+  // integer in which 0 signifies EOF or the handler should be modified so that
+  // EOF is properly transmitted.
+  assertEqual(false, readResult.eof);
+
+  const readResult2 = await conn.read(buf);
+  assertEqual(true, readResult2.eof);
+
+  listener.close();
+  conn.close();
+});