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))
})
It("Should respond with HTTP status code 503", func() {
lh.HandleGet(fakeResponseWriter, dummyRequest)
Expect(fakeResponseWriter.WriteHeaderCallCount()).To(Equal(1))
Expect(fakeResponseWriter.WriteHeaderArgsForCall(0)).To(Equal(http.StatusServiceUnavailable))
})
})
Context("When reading light state contains leading/trailing whitespace", func() {
BeforeEach(func() {
fakeGpio.ReadReturns("\t0\n", nil)
expectedLightState.StateKnown = true
expectedLightState.LightOn = false
BeforeEach(func() {
fakeLogger = lagertest.NewTestLogger("homepage handle test")
fakeLightHandler = new(light_fakes.FakeHandler)
fakeLoginHandler = new(login_fakes.FakeHandler)
fakeResponseWriter = new(test_helpers_fakes.FakeResponseWriter)
var err error
templates, err = template.New("head").Parse(headTemplate)
Expect(err).NotTo(HaveOccurred())
templates, err = templates.New("homepage").Parse(homepageTemplate)
Expect(err).NotTo(HaveOccurred())
hh = homepage.NewHandler(
fakeLogger,
templates,
fakeLightHandler,
fakeLoginHandler,
)
dummyRequest = new(http.Request)
})
Describe("Homepage Handling", func() {
It("Should write the contents of the homepage template to the response writer", func() {
hh.Handle(fakeResponseWriter, dummyRequest)
Expect(fakeResponseWriter.WriteCallCount()).To(BeNumerically(">=", 1))
})
})
})