From 6d9daa2f1190f4ea18c31a51ad6449997e0c3452 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=B6nke=20Ludwig?= <sludwig@rejectedsoftware.com>
Date: Fri, 7 Oct 2016 19:40:50 +0200
Subject: [PATCH] Add USDS test.

---
 README.md      |   2 +-
 tests/0-usds.d | 166 +++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 167 insertions(+), 1 deletion(-)
 create mode 100644 tests/0-usds.d

diff --git a/README.md b/README.md
index a579057..e451781 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ Feature          | SelectEventDriver | EpollEventDriver | IOCPEventDriver | Kque
 -----------------|-------------------|------------------|-----------------|------------------
 TCP Sockets      | yes               | yes              | no              | no               
 UDP Sockets      | yes               | yes              | no              | no               
-USDS             | no                | no               | no              | no               
+USDS             | yes               | yes              | no              | no               
 DNS              | no                | no               | no              | no               
 Timers           | yes               | yes              | no              | no               
 Events           | yes               | yes              | no              | no               
diff --git a/tests/0-usds.d b/tests/0-usds.d
new file mode 100644
index 0000000..e2287c3
--- /dev/null
+++ b/tests/0-usds.d
@@ -0,0 +1,166 @@
+/++ dub.sdl:
+	name "test"
+	dependency "eventcore" path=".."
++/
+module test;
+
+version (Posix) {} else {
+	void main()
+	{
+		import std.stdio;
+		writeln("Skipping Unix domain sockets test on this platform.");
+	}
+}
+
+version (Posix):
+
+import eventcore.core;
+import eventcore.socket;
+import std.file : exists, remove;
+import std.socket : UnixAddress;
+
+ubyte[256] s_rbuf;
+bool s_done;
+
+enum addr1 = "/tmp/eventcore-test.uds";
+enum addr2 = "/tmp/eventcore-test-2.uds";
+enum addr3 = "/tmp/eventcore-test-3.uds";
+
+void testDgram()
+@safe nothrow {
+	static ubyte[] pack1 = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
+	static ubyte[] pack2 = [4, 3, 2, 1, 0];
+
+	if (exists(addr1)) try remove(addr1); catch (Exception e) {}
+	if (exists(addr2)) try remove(addr2); catch (Exception e) {}
+	if (exists(addr3)) try remove(addr3); catch (Exception e) {}
+
+	scope (failure) assert(false);
+
+	auto baddr 	= new UnixAddress(addr1);
+	auto s_baseSocket = createDatagramSocket(baddr);
+	auto s_freeSocket = createDatagramSocket(new UnixAddress(addr2));
+	auto s_connectedSocket = createDatagramSocket(new UnixAddress(addr3), baddr);
+	log("drec");
+	s_baseSocket.receive!((status, bytes, addr) {
+		assert(status == IOStatus.wouldBlock);
+	})(s_rbuf, IOMode.immediate);
+	log("drec2");
+	s_baseSocket.receive!((status, bts, address) {
+		assert(status == IOStatus.ok);
+		assert(bts == pack1.length);
+		assert(s_rbuf[0 .. pack1.length] == pack1);
+
+	log("dsend2");
+		s_freeSocket.send!((status, bytes) {
+			assert(status == IOStatus.ok);
+			assert(bytes == pack2.length);
+		})(pack2, IOMode.once, baddr);
+
+	log("drec3");
+		s_baseSocket.receive!((status, bts, scope addr) {
+	log("drec3done");
+			assert(status == IOStatus.ok);
+			assert(bts == pack2.length);
+			assert(s_rbuf[0 .. pack2.length] == pack2);
+
+			destroy(s_baseSocket);
+			destroy(s_freeSocket);
+			destroy(s_connectedSocket);
+			s_done = true;
+
+			// FIXME: this shouldn't ne necessary:
+			eventDriver.core.exit();
+		})(s_rbuf, IOMode.immediate);
+	})(s_rbuf, IOMode.once);
+	log("dsend");
+	s_connectedSocket.send!((status, bytes) {
+	log("dsenddone");
+		assert(status == IOStatus.ok);
+		assert(bytes == 10);
+	})(pack1, IOMode.immediate);
+
+
+	ExitReason er;
+	do er = eventDriver.core.processEvents();
+	while (er == ExitReason.idle);
+	//assert(er == ExitReason.outOfWaiters); // FIXME: see above
+	assert(s_done);
+	s_done = false;
+}
+
+void testStream()
+{
+	static ubyte[] pack1 = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
+	static ubyte[] pack2 = [4, 3, 2, 1, 0];
+
+	if (exists(addr1)) try remove(addr1); catch (Exception e) {}
+
+	auto baddr 	= new UnixAddress(addr1);
+	auto server = listenStream(baddr);
+	StreamSocket client;
+
+				log("connect");
+	connectStream!((sock, status) {
+		client = sock;
+		assert(status == ConnectStatus.connected);
+				log("write1");
+		client.write!((wstatus, bytes) {
+				log("written1");
+			{ import std.stdio; scope (failure) assert(false); writefln("%s %s", wstatus, bytes); }
+			assert(wstatus == IOStatus.ok);
+			assert(bytes == 10);
+		})(pack1, IOMode.all);
+	})(baddr);
+
+				log("listen");
+	server.waitForConnections!((ref incoming) {
+				log("read1");
+		incoming.read!((status, bts) {
+			assert(status == IOStatus.ok);
+			assert(bts == pack1.length);
+			assert(s_rbuf[0 .. pack1.length] == pack1);
+
+				log("write2");
+			client.write!((status, bytes) {
+				assert(status == IOStatus.ok);
+				assert(bytes == pack2.length);
+			})(pack2, IOMode.once);
+
+				log("read2");
+			incoming.read!((status, bts) {
+				assert(status == IOStatus.ok);
+				assert(bts == pack2.length);
+				assert(s_rbuf[0 .. pack2.length] == pack2);
+
+				destroy(incoming);
+				destroy(server);
+				destroy(client);
+				s_done = true;
+
+				// FIXME: this shouldn't ne necessary:
+				eventDriver.core.exit();
+			})(s_rbuf, IOMode.once);
+		})(s_rbuf, IOMode.once);
+	});
+
+	ExitReason er;
+	do er = eventDriver.core.processEvents();
+	while (er == ExitReason.idle);
+	//assert(er == ExitReason.outOfWaiters); // FIXME: see above
+	assert(s_done);
+	s_done = false;
+}
+
+void main()
+{
+	testStream();
+	testDgram();
+}
+
+void log(ARGS...)(string fmt, ARGS args)
+{
+	import std.stdio;
+	try writefln(fmt, args);
+	catch (Exception e) {}
+}