Initial import

src/client/stdio.test.ts

@@ -0,0 +1,61 @@
+import { JSONRPCMessage } from "../types/index.js";
+import { StdioClientTransport, StdioServerParameters } from "./stdio.js";
+
+const serverParameters: StdioServerParameters = {
+  command: "/usr/bin/tee",
+};
+
+test("should start then close cleanly", async () => {
+  const client = new StdioClientTransport();
+  client.onerror = (error) => {
+    throw error;
+  };
+
+  let didClose = false;
+  client.onclose = () => {
+    didClose = true;
+  };
+
+  await client.spawn(serverParameters);
+  expect(didClose).toBeFalsy();
+  await client.close();
+  expect(didClose).toBeTruthy();
+});
+
+test("should read messages", async () => {
+  const client = new StdioClientTransport();
+  client.onerror = (error) => {
+    throw error;
+  };
+
+  const messages: JSONRPCMessage[] = [
+    {
+      jsonrpc: "2.0",
+      id: 1,
+      method: "ping",
+    },
+    {
+      jsonrpc: "2.0",
+      method: "notifications/initialized",
+    },
+  ];
+
+  const readMessages: JSONRPCMessage[] = [];
+  const finished = new Promise<void>((resolve) => {
+    client.onmessage = (message) => {
+      readMessages.push(message);
+
+      if (JSON.stringify(message) === JSON.stringify(messages[1])) {
+        resolve();
+      }
+    };
+  });
+
+  await client.spawn(serverParameters);
+  await client.send(messages[0]);
+  await client.send(messages[1]);
+  await finished;
+  expect(readMessages).toEqual(messages);
+
+  await client.close();
+});