TCP echo server

test/musicplayer_test.gleam

@@ -1,13 +1,38 @@
+import gleam/list
 import gleeunit
+import simplifile
+
+import tcp/echo_server
+import tcp/tcp
 
 pub fn main() -> Nil {
   gleeunit.main()
 }
 
-// gleeunit test functions end in `_test`
-pub fn hello_world_test() {
-  let name = "Joe"
-  let greeting = "Hello, " <> name <> "!"
+pub fn foo_test() {
+  let socket_path = "/tmp/musicplayer-test.sock"
 
-  assert greeting == "Hello, Joe!"
+  let assert Ok(_) = echo_server.new(socket_path)
+  let assert Ok(socket) = tcp.connect(socket_path)
+
+  let messages = ["hello, ", "world!\n"]
+  list.each(messages, fn(message) {
+    let assert Ok(_) = tcp.send(socket, message)
+  })
+
+  // TODO not valid syntax?
+  // let assert Ok(Nil) = tcp.shutdown(socket)
+  //
+  // test: musicplayer_test.foo_test
+  // code: let assert Ok(Nil) = tcp.shutdown(socket)
+  // value: Ok
+  // info: Pattern match failed, no pattern matched the value.
+
+  let _ = tcp.shutdown(socket)
+
+  let timeout_ms = 100
+  assert Ok("hello, world!\n") == tcp.receive(socket, timeout_ms)
+
+  // TODO find better way to always do cleanup
+  simplifile.delete(socket_path)
 }