chrly/http/http_test.go

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package http
import (
"errors"
"io/ioutil"
"net/http"
"net/http/httptest"
"testing"
testify "github.com/stretchr/testify/assert"
"github.com/stretchr/testify/mock"
)
type emitterMock struct {
mock.Mock
}
func (e *emitterMock) Emit(name string, args ...interface{}) {
e.Called(append([]interface{}{name}, args...)...)
}
func TestCreateRequestEventsMiddleware(t *testing.T) {
req := httptest.NewRequest("GET", "http://example.com", nil)
resp := httptest.NewRecorder()
emitter := &emitterMock{}
emitter.On("Emit", "test_prefix:before_request", req)
emitter.On("Emit", "test_prefix:after_request", req, 400)
isHandlerCalled := false
middlewareFunc := CreateRequestEventsMiddleware(emitter, "test_prefix")
middlewareFunc.Middleware(http.HandlerFunc(func(resp http.ResponseWriter, req *http.Request) {
resp.WriteHeader(400)
isHandlerCalled = true
})).ServeHTTP(resp, req)
if !isHandlerCalled {
t.Fatal("Handler isn't called from the middleware")
}
emitter.AssertExpectations(t)
}
type authCheckerMock struct {
mock.Mock
}
func (m *authCheckerMock) Authenticate(req *http.Request) error {
args := m.Called(req)
return args.Error(0)
}
func TestCreateAuthenticationMiddleware(t *testing.T) {
t.Run("pass", func(t *testing.T) {
req := httptest.NewRequest("GET", "http://example.com", nil)
resp := httptest.NewRecorder()
auth := &authCheckerMock{}
auth.On("Authenticate", req).Once().Return(nil)
isHandlerCalled := false
middlewareFunc := CreateAuthenticationMiddleware(auth)
middlewareFunc.Middleware(http.HandlerFunc(func(resp http.ResponseWriter, req *http.Request) {
isHandlerCalled = true
})).ServeHTTP(resp, req)
testify.True(t, isHandlerCalled, "Handler isn't called from the middleware")
auth.AssertExpectations(t)
})
t.Run("fail", func(t *testing.T) {
req := httptest.NewRequest("GET", "http://example.com", nil)
resp := httptest.NewRecorder()
auth := &authCheckerMock{}
auth.On("Authenticate", req).Once().Return(errors.New("error reason"))
isHandlerCalled := false
middlewareFunc := CreateAuthenticationMiddleware(auth)
middlewareFunc.Middleware(http.HandlerFunc(func(resp http.ResponseWriter, req *http.Request) {
isHandlerCalled = true
})).ServeHTTP(resp, req)
testify.False(t, isHandlerCalled, "Handler shouldn't be called")
testify.Equal(t, 403, resp.Code)
body, _ := ioutil.ReadAll(resp.Body)
testify.JSONEq(t, `{
"error": "error reason"
}`, string(body))
auth.AssertExpectations(t)
})
}
func TestNotFoundHandler(t *testing.T) {
assert := testify.New(t)
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req := httptest.NewRequest("GET", "http://example.com", nil)
w := httptest.NewRecorder()
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NotFoundHandler(w, req)
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resp := w.Result()
assert.Equal(404, resp.StatusCode)
assert.Equal("application/json", resp.Header.Get("Content-Type"))
response, _ := ioutil.ReadAll(resp.Body)
assert.JSONEq(`{
"status": "404",
"message": "Not Found"
}`, string(response))
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}