Add test for undefined accessory values

test/test-accessory.js

@@ -81,6 +81,15 @@ describe('accessory', () => {
     assert(temperatureSpy.calledWith(null, 23));
   });
 
+  it('should error on undefined temperature characteristic get value ', () => {
+    const temperatureSpy = sinon.spy();
+    const accessory = new this.MiHygrothermographAccessory(mockLogger, {});
+    const characteristic = this.characteristics.CurrentTemperature;
+    assert.strictEqual(accessory.temperature, undefined);
+    characteristic.emit('get', temperatureSpy);
+    assert(temperatureSpy.calledWith(sinon.match.instanceOf(Error)));
+  });
+
   it('should answer humidity characteristic get value', () => {
     const humiditySpy = sinon.spy();
     const accessory = new this.MiHygrothermographAccessory(mockLogger, {});
@@ -90,6 +99,15 @@ describe('accessory', () => {
     assert(humiditySpy.calledWith(null, 30));
   });
 
+  it('should error on undefined humidity characteristic get value ', () => {
+    const humiditySpy = sinon.spy();
+    const accessory = new this.MiHygrothermographAccessory(mockLogger, {});
+    const characteristic = this.characteristics.CurrentRelativeHumidity;
+    assert.strictEqual(accessory.humidity, undefined);
+    characteristic.emit('get', humiditySpy);
+    assert(humiditySpy.calledWith(sinon.match.instanceOf(Error)));
+  });
+
   it('should answer low battery characteristic get value', () => {
     const lowBatterySpy = sinon.spy();
     const accessory = new this.MiHygrothermographAccessory(mockLogger, {});
@@ -114,6 +132,15 @@ describe('accessory', () => {
     assert(batterySpy.calledWith(null, 99));
   });
 
+  it('should error on undefined battery level characteristic get value ', () => {
+    const batterySpy = sinon.spy();
+    const accessory = new this.MiHygrothermographAccessory(mockLogger, {});
+    const characteristic = this.characteristics.BatteryLevel;
+    assert.strictEqual(accessory.batteryLevel, undefined);
+    characteristic.emit('get', batterySpy);
+    assert(batterySpy.calledWith(sinon.match.instanceOf(Error)));
+  });
+
   it('should return all services', () => {
     const accessory = new this.MiHygrothermographAccessory(mockLogger, {});
     const services = accessory.getServices();