Test sending a button

Author: mkapal

tests/button.test.tsx

@@ -0,0 +1,98 @@
+import Mitm from 'mitm';
+import { InSim } from 'node-insim';
+import { IS_BTN, IS_ISI, IS_VER } from 'node-insim/packets';
+
+import type { CreateRootOptions } from '../src';
+import { Button, createRoot } from '../src';
+
+function stringToBytes(string: string) {
+  return string.split('').map((char) => char.charCodeAt(0));
+}
+
+describe('Buttons', () => {
+  let mitm: ReturnType<typeof Mitm>;
+
+  beforeEach(() => {
+    mitm = Mitm();
+  });
+
+  afterEach(() => {
+    mitm.disable();
+  });
+
+  it('should connect to InSim and send a button', (done) => {
+    let root: ReturnType<typeof createRoot>;
+    let receivedPackets: Buffer[] = [];
+
+    const createRootOptions: CreateRootOptions = {
+      name: 'Test App',
+      host: '127.0.0.1',
+      port: 29999,
+      adminPassword: 'adminPassword',
+      prefix: '!',
+    };
+
+    process.nextTick(() => {
+      root = createRoot(createRootOptions);
+      root.render(
+        <Button width={20} height={5}>
+          Hello world
+        </Button>,
+      );
+    });
+
+    mitm.on('connection', (socket, opts) => {
+      expect(opts.host).toEqual('127.0.0.1');
+      expect(opts.port).toEqual(29999);
+
+      socket.on('data', (data) => {
+        receivedPackets.push(data);
+        const combined = Buffer.concat(receivedPackets);
+        const isi = new IS_ISI({
+          ReqI: 255,
+          InSimVer: 9,
+          Prefix: '!',
+          IName: 'Test App',
+          Admin: 'adminPassword',
+        });
+
+        if (combined.length >= isi.Size && receivedPackets.length === 1) {
+          expect(combined).toEqual(Buffer.from(isi.pack()));
+
+          const ver = new IS_VER();
+          const versionPacket = Buffer.from([
+            ver.Size / ver.SIZE_MULTIPLIER,
+            ver.Type,
+            255, // ReqI
+            0, // Zero
+            ...stringToBytes('0.7F\0\0\0\0'), // Version
+            ...stringToBytes('S3\0\0\0\0'), // Product
+            InSim.INSIM_VERSION,
+            0, // Spare
+          ]);
+          setTimeout(() => socket.write(versionPacket));
+
+          receivedPackets = [];
+          return;
+        }
+
+        const btn = new IS_BTN({
+          ReqI: 1,
+          W: 20,
+          H: 5,
+          L: 0,
+          T: 0,
+          ClickID: 0,
+          Text: 'Hello world',
+        });
+
+        if (combined.length >= btn.Size) {
+          expect(combined).toEqual(Buffer.from(btn.pack()));
+
+          root.disconnect();
+          done();
+        }
+      });
+    });
+  });
+});