initial commit

packages/free-d/tests/encode.test.js

@@ -0,0 +1,55 @@
+const { deepEqual, throws } = require('assert');
+const { describe, it } = require('node:test');
+const { encode } = require('../dist/cjs');
+
+const goodTests = [
+  {
+    description: 'simple position message',
+    message: {
+      type: 0xd1,
+      id: 1,
+      pan: 180,
+      tilt: 90,
+      roll: -180,
+      posX: 131069,
+      posY: 131070,
+      posZ: 131071,
+      zoom: 66051,
+      focus: 263430,
+      spare: 0,
+    },
+    expected: new Uint8Array([
+      0xd1, 0x01, 0x5a, 0x00, 0x00, 0x2d, 0x00, 0x00, 0xa6, 0x00, 0x00, 0x7f, 0xff, 0x40, 0x7f, 0xff, 0x80, 0x7f, 0xff,
+      0xc0, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x00, 0x00, 50,
+    ]),
+  },
+];
+
+const badTests = [
+  {
+    description: 'unsupported message',
+    message: {
+      type: 0xff,
+    },
+    throwsMessage: { name: /^Error$/, message: /unsupported freeD message type/ },
+  },
+];
+
+describe('FreeD Message Encoding', () => {
+  goodTests.forEach((messageTest) => {
+    it(messageTest.description, () => {
+      const decoded = encode(messageTest.message);
+      deepEqual(decoded, messageTest.expected);
+    });
+  });
+});
+
+describe('FreeD Message Encoding Throws', () => {
+  badTests.forEach((messageTest) => {
+    it(messageTest.description, () => {
+      throws(() => {
+        encode(messageTest.message);
+      }, messageTest.throwsMessage);
+    });
+  });
+});