tests added

src/meterbus.test.ts

@@ -139,6 +139,9 @@ describe('The Meterbus Library', () => {
         expect((telegram.frame as MeterbusLibFrames.ControlFrame).ciField).to.equal(3)
     })
     
+    
+})
+
 describe('The Meterbus Longframe Library', () => {
     let telegram : MeterbusLib.Telegram
     
@@ -180,5 +183,3 @@ describe('The Meterbus Library', () => {
         expect((telegram.frame as MeterbusLibLongFrame.LongFrame).getJSON()).to.equal(json_1phase_electric)
     })
 })
-
-})

src/meterbus.ts

@@ -1,6 +1,8 @@
 import {MeterbusLibExceptions} from './exceptions'
 import {MeterbusLibFrames} from './simpleframes'
 import {MeterbusLibLongFrame} from './longframe'
+import {MeterbusLibUtils} from './utils'
+
 
 export namespace MeterbusLib {
 

src/utils.test.ts

@@ -26,3 +26,26 @@ describe('The Meterbus Library Utils', () => {
         expect(MeterbusLibUtils.manufCode([0x2e, 0x19])).to.equal("FIN")
     })
 })
+
+describe('The jsonPrepare function in the Meterbus Library Utils', () => {
+    it('should forward regular properties of an object', () => {
+        let objIn = {'a': 1, 'b':2}
+        let objOut = objIn
+        expect(MeterbusLibUtils.jsonPrepaper(objIn, [])).to.deep.equal(objOut)
+    })
+    it('should hide properties in the hide list', () => {
+        let objIn = {'a': 1, 'b':2}
+        let objOut = {'a': 1}
+        expect(MeterbusLibUtils.jsonPrepaper(objIn, ['b'])).to.deep.equal(objOut)
+    })
+    it('should hide properties beginning with two underscores', () => {
+        let objIn = {'a': 1, '__b':2}
+        let objOut = {'a': 1}
+        expect(MeterbusLibUtils.jsonPrepaper(objIn, [])).to.deep.equal(objOut)
+    })
+    it('should remove one leading underscore from property names', () => {
+        let objIn = {'_a': 1, 'b':2}
+        let objOut = {'a': 1, 'b':2}
+        expect(MeterbusLibUtils.jsonPrepaper(objIn, [])).to.deep.equal(objOut)
+    })
+})