add boilerplate for lighting encode tests

tests/lighting-encode.test.js

@@ -0,0 +1,26 @@
+const { deepEqual, throws } = require('assert');
+const { describe, it } = require('node:test');
+const { Encoders } = require('../');
+
+const goodTests = [];
+
+describe('RTTrPL Message Encoding', () => {
+  goodTests.forEach((messageTest) => {
+    it(messageTest.description, () => {
+      const actual = messageTest.bytes();
+      deepEqual(actual, messageTest.expected);
+    });
+  });
+});
+
+//TODO(jwetzell): add tests that handle errors
+const badTests = [];
+
+describe('RTTrPL Message Encoding Throws', () => {
+  badTests.forEach((messageTest) => {
+    it(messageTest.description, () => {
+      messageTest.bytes();
+      throws(() => {}, messageTest.throwsMessage);
+    });
+  });
+});