Adjust POST/PUT tests: search the body for request payload

gitlab_test.go

 package gitlab
 
 import (
+	"encoding/json"
 	"io/ioutil"
 	"net/http"
 	"net/http/httptest"
@@ -74,6 +75,20 @@ func testBody(t *testing.T, r *http.Request, want string) {
 	}
 }
 
+func testJsonBody(t *testing.T, r *http.Request, want values) {
+	b, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		t.Errorf("Error reading request body: %v", err)
+	}
+
+	var got values
+	json.Unmarshal(b, &got)
+
+	if !reflect.DeepEqual(got, want) {
+		t.Errorf("Request parameters: %v, want %v", got, want)
+	}
+}
+
 func responseBody(w http.ResponseWriter, filename string) {
 	body, _ := ioutil.ReadFile(filename)
 	w.Write([]byte(body))

projects_test.go

@@ -177,7 +177,7 @@ func TestCreateProject(t *testing.T) {
 
 	mux.HandleFunc("/projects", func(w http.ResponseWriter, r *http.Request) {
 		testMethod(t, r, "POST")
-		testFormValues(t, r, values{
+		testJsonBody(t, r, values{
 			"name": "n",
 		})
 

services_test.go

@@ -13,7 +13,7 @@ func TestSetDroneCIService(t *testing.T) {
 
 	mux.HandleFunc("/projects/1/services/drone-ci", func(w http.ResponseWriter, r *http.Request) {
 		testMethod(t, r, "PUT")
-		testFormValues(t, r, values{
+		testJsonBody(t, r, values{
 			"token": "t",
 			"drone_url": "u",
 			"enable_ssl_verification": "true",