Describe("Turning light on", func() {
BeforeEach(func() {
u, err := url.Parse("/?state=on")
Expect(err).ShouldNot(HaveOccurred())
dummyRequest.URL = u
expectedLightState.StateKnown = true
expectedLightState.LightOn = true
expectedReturn, err = json.Marshal(expectedLightState)
Expect(err).NotTo(HaveOccurred())
})
Context("When turning on light commands returns with error", func() {
BeforeEach(func() {
expectedError := errors.New(fmt.Sprintf("gpio write error"))
fakeGpio.WriteHighReturns(expectedError)
expectedLightState.StateKnown = false
expectedLightState.LightOn = false
expectedLightState.ErrorMsg = expectedError.Error()
expectedReturn, err = json.Marshal(expectedLightState)
Expect(err).NotTo(HaveOccurred())
})
It("Should write high to light pin", func() {
lh.HandleSet(fakeResponseWriter, dummyRequest)
Expect(fakeGpio.WriteHighCallCount()).To(Equal(1))
actualGpioPin := fakeGpio.WriteHighArgsForCall(0)
Expect(actualGpioPin).To(Equal(gpioLightPin))
Expect(actualHighPin).To(Equal(gpioDoorPin))
actualLowPin := fakeGpio.WriteLowArgsForCall(0)
Expect(actualLowPin).To(Equal(gpioDoorPin))
})
It("Should return 'door toggled'", func() {
dh.HandleToggle(fakeResponseWriter, dummyRequest)
Expect(fakeResponseWriter.WriteCallCount()).To(Equal(1))
Expect(fakeResponseWriter.WriteArgsForCall(0)).To(Equal([]byte("door toggled")))
})
})
Context("When writing high returns with errors", func() {
BeforeEach(func() {
fakeGpio.WriteHighReturns(errors.New("gpio error"))
})
It("Should not sleep or execute further gpio commands", func() {
dh.HandleToggle(fakeResponseWriter, dummyRequest)
Expect(fakeOSHelper.SleepCallCount()).To(Equal(0))
Expect(fakeGpio.WriteHighCallCount()).To(Equal(1))
actualHighPin := fakeGpio.WriteHighArgsForCall(0)
Expect(actualHighPin).To(Equal(gpioDoorPin))
})
It("Should return 'error - door not toggled'", func() {
dh.HandleToggle(fakeResponseWriter, dummyRequest)
Expect(fakeResponseWriter.WriteCallCount()).To(Equal(1))