fakeGpio = new(gpio_fakes.FakeGpio)
fakeResponseWriter = new(test_helpers_fakes.FakeResponseWriter)
lh = light.NewHandler(
fakeLogger,
fakeGpio,
gpioLightPin,
)
dummyRequest = new(http.Request)
})
Describe("Reading state", func() {
Context("When reading light state returns with error", func() {
BeforeEach(func() {
fakeGpio.ReadReturns("", errors.New("gpio read error"))
expectedLightState.StateKnown = false
expectedReturn, err = json.Marshal(expectedLightState)
Expect(err).NotTo(HaveOccurred())
})
It("Should read from light pin", func() {
lh.HandleGet(fakeResponseWriter, dummyRequest)
Expect(fakeGpio.ReadCallCount()).To(Equal(1))
Expect(fakeGpio.ReadArgsForCall(0)).To(Equal(gpioLightPin))
})
It("Should return unknown light state", func() {
lh.HandleGet(fakeResponseWriter, dummyRequest)
Expect(fakeResponseWriter.WriteCallCount()).To(Equal(1))
Expect(fakeResponseWriter.WriteArgsForCall(0)).To(Equal(expectedReturn))
