initial, start porting Python MeterbusLib to node

src/meterbus.test.ts

@@ -0,0 +1,44 @@
+import {MeterbusLib} from './meterbus'
+
+import * as mocha from 'mocha'
+import * as chai from 'chai'
+
+const expect = chai.expect
+
+describe('The Meterbus Library', () => {
+    it('should store hexString', () => {
+        const telegram = new MeterbusLib.Telegram()
+        telegram.fromHexString("01 02 03")
+        expect(telegram.hexString).to.equal("01 02 03")
+    })
+    it('should parse the hexString into the telegram array', () => {
+        const telegram = new MeterbusLib.Telegram()
+        telegram.fromHexString("01 02 03")
+        expect(telegram.telegram).to.deep.equal([1, 2, 3])        
+    })
+    it('should detect a control frame', () => {
+        const telegram = new MeterbusLib.Telegram()
+        telegram.fromHexString("68 03")
+        telegram.parse()
+        expect(telegram.frame).instanceof(MeterbusLib.ControlFrame)
+    })
+    it('should detect a short frame', () => {
+        const telegram = new MeterbusLib.Telegram()
+        telegram.fromHexString("10")
+        telegram.parse()
+        expect(telegram.frame).instanceof(MeterbusLib.ShortFrame)
+    })
+    it('should detect a long frame', () => {
+        const telegram = new MeterbusLib.Telegram()
+        telegram.fromHexString("68 10")
+        telegram.parse()
+        expect(telegram.frame).instanceof(MeterbusLib.LongFrame)
+    })
+    it('should detect a single char frame', () => {
+        const telegram = new MeterbusLib.Telegram()
+        telegram.fromHexString("e5")
+        telegram.parse()
+        expect(telegram.frame).instanceof(MeterbusLib.SingleCharFrame)
+    })
+
+})