forked from matryer/respond
/
respond_test.go
303 lines (234 loc) · 7.11 KB
/
respond_test.go
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package respond_test
import (
"encoding/json"
"errors"
"io"
"net/http"
"net/http/httptest"
"testing"
"github.com/cheekybits/is"
"github.com/zbindenren/respond"
)
var testdata = map[string]interface{}{"test": true}
type testHandler struct {
status int
data interface{}
}
func (t *testHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
respond.With(w, r, t.status, t.data)
}
type testStatusHandler struct {
status int
}
func (t *testStatusHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
respond.WithStatus(w, r, t.status)
}
func newTestRequest() *http.Request {
r, err := http.NewRequest("GET", "Something", nil)
if err != nil {
panic("bad request: " + err.Error())
}
return r
}
func TestWith(t *testing.T) {
is := is.New(t)
w := httptest.NewRecorder()
r := newTestRequest()
respond.With(w, r, http.StatusOK, testdata)
is.Equal(http.StatusOK, w.Code)
var data map[string]interface{}
is.NoErr(json.Unmarshal(w.Body.Bytes(), &data))
is.Equal(data, testdata)
is.Equal(w.HeaderMap.Get("Content-Type"), "application/json; charset=utf-8")
}
func TestWithStatusDefault(t *testing.T) {
is := is.New(t)
w := httptest.NewRecorder()
r := newTestRequest()
respond.WithStatus(w, r, http.StatusTeapot)
is.Equal(http.StatusTeapot, w.Code)
var data map[string]interface{}
is.NoErr(json.Unmarshal(w.Body.Bytes(), &data))
is.Equal(data["status"], "I'm a teapot")
is.Equal(data["code"], http.StatusTeapot)
is.Equal(w.HeaderMap.Get("Content-Type"), "application/json; charset=utf-8")
}
func TestWithStatusOptions(t *testing.T) {
is := is.New(t)
options := &respond.Options{
StatusData: func(w http.ResponseWriter, r *http.Request, status int) interface{} {
return map[string]interface{}{"s": status}
},
}
testHandler := &testStatusHandler{
status: http.StatusTeapot,
}
handler := options.Handler(testHandler)
w := httptest.NewRecorder()
r := newTestRequest()
handler.ServeHTTP(w, r)
is.Equal(http.StatusTeapot, w.Code)
is.Equal(w.Body.String(), `{"s":418}`+"\n")
is.Equal(w.HeaderMap.Get("Content-Type"), "application/json; charset=utf-8")
}
func TestWithError(t *testing.T) {
is := is.New(t)
w := httptest.NewRecorder()
r := newTestRequest()
err := errors.New("something went wrong")
opts := &respond.Options{
Before: func(w http.ResponseWriter, r *http.Request, status int, data interface{}) (int, interface{}) {
if err, ok := data.(error); ok {
return status, map[string]interface{}{"error": err.Error()}
}
return status, data
},
}
testHandler := &testHandler{
status: http.StatusInternalServerError,
data: err,
}
handler := opts.Handler(testHandler)
handler.ServeHTTP(w, r)
is.Equal(http.StatusInternalServerError, w.Code)
var data map[string]interface{}
is.NoErr(json.Unmarshal(w.Body.Bytes(), &data))
is.Equal(data, map[string]interface{}{"error": err.Error()})
is.Equal(w.HeaderMap.Get("Content-Type"), "application/json; charset=utf-8")
}
func TestBefore(t *testing.T) {
is := is.New(t)
options := &respond.Options{}
var beforecall map[string]interface{}
options.Before = func(w http.ResponseWriter, r *http.Request, status int, data interface{}) (int, interface{}) {
beforecall = map[string]interface{}{
"w": w, "r": r, "status": status, "data": data,
}
return status, data
}
testHandler := &testHandler{
status: http.StatusOK, data: testdata,
}
handler := options.Handler(testHandler)
w := httptest.NewRecorder()
r := newTestRequest()
handler.ServeHTTP(w, r)
is.OK(beforecall)
is.Equal(beforecall["w"], w)
is.Equal(beforecall["r"], r)
is.Equal(beforecall["status"], testHandler.status)
is.Equal(beforecall["data"], testHandler.data)
is.Equal(http.StatusOK, w.Code)
var data map[string]interface{}
is.NoErr(json.Unmarshal(w.Body.Bytes(), &data))
is.Equal(data, testdata)
is.Equal(w.HeaderMap.Get("Content-Type"), "application/json; charset=utf-8")
}
func TestAfter(t *testing.T) {
is := is.New(t)
options := &respond.Options{}
var aftercall map[string]interface{}
options.After = func(w http.ResponseWriter, r *http.Request, status int, data interface{}) {
aftercall = map[string]interface{}{
"w": w, "r": r, "status": status, "data": data,
}
}
testHandler := &testHandler{
status: http.StatusOK, data: testdata,
}
handler := options.Handler(testHandler)
w := httptest.NewRecorder()
r := newTestRequest()
handler.ServeHTTP(w, r)
is.OK(aftercall)
is.Equal(aftercall["w"], w)
is.Equal(aftercall["r"], r)
is.Equal(aftercall["status"], testHandler.status)
is.Equal(aftercall["data"], testHandler.data)
is.Equal(http.StatusOK, w.Code)
var data map[string]interface{}
is.NoErr(json.Unmarshal(w.Body.Bytes(), &data))
is.Equal(data, testdata)
is.Equal(w.HeaderMap.Get("Content-Type"), "application/json; charset=utf-8")
}
type testEncoder struct {
err error
}
func (e *testEncoder) Encode(w http.ResponseWriter, r *http.Request, v interface{}) error {
io.WriteString(w, "testEncoder")
return e.err
}
func (e *testEncoder) ContentType(w http.ResponseWriter, r *http.Request) string {
return "test/encoder"
}
func TestEncoder(t *testing.T) {
is := is.New(t)
options := &respond.Options{}
var encodercall map[string]interface{}
options.Encoder = func(w http.ResponseWriter, r *http.Request) respond.Encoder {
encodercall = map[string]interface{}{
"w": w, "r": r,
}
return &testEncoder{}
}
testHandler := &testHandler{
status: http.StatusOK, data: testdata,
}
handler := options.Handler(testHandler)
w := httptest.NewRecorder()
r := newTestRequest()
handler.ServeHTTP(w, r)
is.OK(encodercall)
is.Equal(encodercall["w"], w)
is.Equal(encodercall["r"], r)
is.Equal(http.StatusOK, w.Code)
is.Equal(w.Body.String(), "testEncoder")
is.Equal(w.HeaderMap.Get("Content-Type"), "test/encoder")
}
func TestEncoderOnErr(t *testing.T) {
is := is.New(t)
var onErrCall map[string]interface{}
options := &respond.Options{
OnErr: func(err error) {
onErrCall = map[string]interface{}{"err": err}
},
}
encoderErr := errors.New("something went wrong while encoding")
options.Encoder = func(w http.ResponseWriter, r *http.Request) respond.Encoder {
return &testEncoder{
err: encoderErr,
}
}
testHandler := &testHandler{
status: http.StatusOK, data: testdata,
}
handler := options.Handler(testHandler)
w := httptest.NewRecorder()
r := newTestRequest()
handler.ServeHTTP(w, r)
is.OK(onErrCall)
is.Equal(onErrCall["err"], encoderErr)
}
func TestMultipleWith(t *testing.T) {
is := is.New(t)
options := &respond.Options{}
handler := options.Handler(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
respond.With(w, r, http.StatusInternalServerError, errors.New("borked"))
respond.With(w, r, http.StatusOK, nil)
}))
w := httptest.NewRecorder()
r := newTestRequest()
is.PanicWith("respond: multiple responses", func() {
handler.ServeHTTP(w, r)
})
options = &respond.Options{
AllowMultiple: true,
}
handler = options.Handler(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
respond.With(w, r, http.StatusInternalServerError, errors.New("borked"))
respond.With(w, r, http.StatusOK, nil)
}))
w = httptest.NewRecorder()
r = newTestRequest()
handler.ServeHTTP(w, r)
}