Initial Dever 0.0.1

test/rust/compiler/http/websocket.rs

@@ -0,0 +1,56 @@
+use super::*;
+
+#[test]
+fn websocket_original_contract_effects_and_resource_rules() {
+    let source = "route(request: dever.http.Request, reply: dever.system.HttpReply) () { socket = dever.websocket.accept(reply, dever.websocket.defaultLimits())\ndever.websocket.send(socket, dever.websocket.Message.Text(request.target))\ndever.websocket.close(socket, 1000, \"\") }\nmain(listener: dever.system.Listener) () { dever.http.serveLive(route, listener, dever.http.defaultLimits(), dever.http.defaultLiveLimits()) }";
+    let program = linked(source).unwrap();
+    let main = program
+        .functions
+        .iter()
+        .find(|function| function.signature.name == "main")
+        .unwrap();
+    assert!(
+        main.signature.effects.network
+            && main.signature.effects.suspend
+            && main.signature.effects.schedule
+    );
+    for (source, code) in [
+        (
+            "main(socket: dever.system.WebSocket) (same: Bool) { same = socket == socket }",
+            "C005",
+        ),
+        (
+            "main(socket: dever.system.WebSocket) () { dever.system.wsReceive(socket) }",
+            "C006",
+        ),
+        (
+            "main(socket: dever.system.WebSocket) () { lost = result(dever.websocket.receive(socket)) }",
+            "C012",
+        ),
+        (
+            "main() () { lost = result(dever.websocket.connect(\"127.0.0.1\", 80, \"/\", dever.websocket.defaultLimits())) }",
+            "C012",
+        ),
+        (
+            "main(socket: dever.system.WebSocket) (value: dever.websocket.Message) { value = first(dever.websocket.messages(socket)) }",
+            "C005",
+        ),
+    ] {
+        let error = linked(source).unwrap_err();
+        assert!(error.contains(code), "{source}\n{error}");
+    }
+}
+
+#[test]
+fn websocket_messages_are_lazy_and_keep_terminal_failure_obligations() {
+    let source = "main(socket: dever.system.WebSocket) (stream: AsyncStream<dever.websocket.MessageEvent>) { stream = dever.websocket.messages(socket) }";
+    let program = linked(source).unwrap();
+    let main = program
+        .functions
+        .iter()
+        .find(|function| function.signature.name == "main")
+        .unwrap();
+    assert!(!main.signature.effects.suspend);
+    let source = "read(event: dever.websocket.MessageEvent.Read(message)) () {}\nread(event: dever.websocket.MessageEvent.Failed(message)) () { fail(dever.websocket.MessageEvent.Failed(message)) }\nmain(socket: dever.system.WebSocket) () { each(read, dever.websocket.messages(socket)) }";
+    linked(source).unwrap();
+}