RHINENG-22023: merge common_test into test_utils in manager controllers

Apparently, functions from _test files are not exported even tho they
are capitalized. Doing this so that I could import and use them in the
following commit.

Author: Dugowitch

manager/controllers/common_test.go

@@ -1,9 +1,15 @@
 package controllers
 
 import (
+	"app/base/core"
 	"encoding/json"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"regexp"
 	"testing"
 
+	"github.com/gin-gonic/gin"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -14,3 +20,63 @@ func ParseResponseBody(t *testing.T, bytes []byte, out interface{}) {
 	err := json.Unmarshal(bytes, &out)
 	assert.Nil(t, err, string(bytes))
 }
+
+// Add content type to header
+func acceptContentType(req *http.Request, ct string) {
+	if ct != "" {
+		req.Header.Add("Accept", ct)
+	}
+}
+
+// Fill params and append query string to routerPath to get url
+func getURLFromRouterPath(routerPath, param, queryString string) string {
+	pattern := regexp.MustCompile(":[a-zA-Z0-9_]+")
+	return pattern.ReplaceAllString(routerPath, param) + queryString
+}
+
+// Init request
+func prepareRequest(method string, url string, body io.Reader, ct string) (w *httptest.ResponseRecorder,
+	req *http.Request) {
+	req, _ = http.NewRequest(method, url, body)
+	acceptContentType(req, ct)
+	return httptest.NewRecorder(), req
+}
+
+// Create simple request
+func CreateRequest(method string, url string, body io.Reader, contentType string, handler gin.HandlerFunc,
+	contextKVs ...core.ContextKV) (
+	w *httptest.ResponseRecorder) {
+	w, req := prepareRequest(method, url, body, contentType)
+	core.InitRouter(handler, contextKVs...).ServeHTTP(w, req)
+	return w
+}
+
+// Create request and initialize router with params
+func CreateRequestRouterWithParams(method, routerPath, param, queryString string, body io.Reader, contentType string,
+	handler gin.HandlerFunc, routerAccount int, contextKVs ...core.ContextKV) (w *httptest.ResponseRecorder) {
+	w, req := prepareRequest(method, getURLFromRouterPath(routerPath, param, queryString), body, contentType)
+	core.InitRouterWithParams(handler, routerAccount, method, routerPath, contextKVs...).ServeHTTP(w, req)
+	return w
+}
+
+// Create request and initialize router with path
+func CreateRequestRouterWithPath(method, routerPath, param, queryString string, body io.Reader, contentType string,
+	handler gin.HandlerFunc, contextKVs ...core.ContextKV) (w *httptest.ResponseRecorder) {
+	w, req := prepareRequest(method, getURLFromRouterPath(routerPath, param, queryString), body, contentType)
+	core.InitRouterWithPath(handler, routerPath, contextKVs...).ServeHTTP(w, req)
+	return w
+}
+
+// Create request and initialize router with account
+func CreateRequestRouterWithAccount(method, routerPath, param, queryString string, body io.Reader, contentType string,
+	handler gin.HandlerFunc, routerAccount int, contextKVs ...core.ContextKV) (w *httptest.ResponseRecorder) {
+	w, req := prepareRequest(method, getURLFromRouterPath(routerPath, param, queryString), body, contentType)
+	core.InitRouterWithAccount(handler, routerPath, routerAccount, contextKVs...).ServeHTTP(w, req)
+	return w
+}
+
+// Check status and parse response body
+func CheckResponse(t *testing.T, w *httptest.ResponseRecorder, expectedStatus int, output interface{}) {
+	assert.Equal(t, expectedStatus, w.Code)
+	ParseResponseBody(t, w.Body.Bytes(), &output)
+}