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package test
import (
"encoding/json"
"fmt"
"io/ioutil"
"mime"
"net/http"
"net/http/httptest"
"strings"
"testing"
)
// MakeSimpleRequest returns a http.Request. The returned request object can be
// further prepared by adding headers and query string parmaters, for instance.
func MakeSimpleRequest(method string, urlStr string, payload interface{}) *http.Request {
var s string
if payload != nil {
b, err := json.Marshal(payload)
if err != nil {
panic(err)
}
s = fmt.Sprintf("%s", b)
}
r, err := http.NewRequest(method, urlStr, strings.NewReader(s))
if err != nil {
panic(err)
}
r.Header.Set("Accept-Encoding", "gzip")
if payload != nil {
r.Header.Set("Content-Type", "application/json")
}
return r
}
// CodeIs compares the rescorded status code
func CodeIs(t *testing.T, r *httptest.ResponseRecorder, expectedCode int) {
if r.Code != expectedCode {
t.Errorf("Code %d expected, got: %d", expectedCode, r.Code)
}
}
// HeaderIs tests the first value for the given headerKey
func HeaderIs(t *testing.T, r *httptest.ResponseRecorder, headerKey, expectedValue string) {
value := r.HeaderMap.Get(headerKey)
if value != expectedValue {
t.Errorf(
"%s: %s expected, got: %s",
headerKey,
expectedValue,
value,
)
}
}
func ContentTypeIsJson(t *testing.T, r *httptest.ResponseRecorder) {
mediaType, params, _ := mime.ParseMediaType(r.HeaderMap.Get("Content-Type"))
charset := params["charset"]
if mediaType != "application/json" {
t.Errorf(
"Content-Type media type: application/json expected, got: %s",
mediaType,
)
}
if charset != "" && strings.ToUpper(charset) != "UTF-8" {
t.Errorf(
"Content-Type charset: must be empty or UTF-8, got: %s",
charset,
)
}
}
func ContentEncodingIsGzip(t *testing.T, r *httptest.ResponseRecorder) {
HeaderIs(t, r, "Content-Encoding", "gzip")
}
func BodyIs(t *testing.T, r *httptest.ResponseRecorder, expectedBody string) {
body := r.Body.String()
if body != expectedBody {
t.Errorf("Body '%s' expected, got: '%s'", expectedBody, body)
}
}
func DecodeJsonPayload(r *httptest.ResponseRecorder, v interface{}) error {
content, err := ioutil.ReadAll(r.Body)
if err != nil {
return err
}
err = json.Unmarshal(content, v)
if err != nil {
return err
}
return nil
}
type Recorded struct {
T *testing.T
Recorder *httptest.ResponseRecorder
}
// RunRequest runs a HTTP request through the given handler
func RunRequest(t *testing.T, handler http.Handler, request *http.Request) *Recorded {
recorder := httptest.NewRecorder()
handler.ServeHTTP(recorder, request)
return &Recorded{t, recorder}
}
func (rd *Recorded) CodeIs(expectedCode int) {
CodeIs(rd.T, rd.Recorder, expectedCode)
}
func (rd *Recorded) HeaderIs(headerKey, expectedValue string) {
HeaderIs(rd.T, rd.Recorder, headerKey, expectedValue)
}
func (rd *Recorded) ContentTypeIsJson() {
ContentTypeIsJson(rd.T, rd.Recorder)
}
func (rd *Recorded) ContentEncodingIsGzip() {
rd.HeaderIs("Content-Encoding", "gzip")
}
func (rd *Recorded) BodyIs(expectedBody string) {
BodyIs(rd.T, rd.Recorder, expectedBody)
}
func (rd *Recorded) DecodeJsonPayload(v interface{}) error {
return DecodeJsonPayload(rd.Recorder, v)
}
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