[MM-16751] golint model (#17896)

app/authentication_test.go

@@ -38,12 +38,12 @@ func TestParseAuthTokenFromRequest(t *testing.T) {
 		req := httptest.NewRequest("GET", pathname, nil)
 		switch tc.expectedLocation {
 		case TokenLocationHeader:
-			req.Header.Add(model.HEADER_AUTH, tc.header)
+			req.Header.Add(model.HeaderAuth, tc.header)
 		case TokenLocationCloudHeader:
-			req.Header.Add(model.HEADER_CLOUD_TOKEN, tc.header)
+			req.Header.Add(model.HeaderCloudToken, tc.header)
 		case TokenLocationCookie:
 			req.AddCookie(&http.Cookie{
-				Name:  model.SESSION_COOKIE_TOKEN,
+				Name:  model.SessionCookieToken,
 				Value: tc.cookie,
 			})
 		}