test: consolidate Go tests (#39962)

Consolidate all Go tests. Coverage is identical to before. Go tests are
around 5% faster while being 7% smaller. No non-test code is touched.

tests/integration/api_user_variables_test.go

@@ -15,6 +15,17 @@ import (
 func TestAPIUserVariables(t *testing.T) {
 	defer tests.PrepareTestEnv(t)()
 
+	t.Run("UpdateUser", func(t *testing.T) {
+		normalUsername := "user2"
+		session := loginUser(t, normalUsername)
+		token := getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeWriteUser)
+
+		req := NewRequestWithJSON(t, "PATCH", "/api/v1/user/settings", map[string]string{
+			"website": "https://gitea.com",
+		}).AddTokenAuth(token)
+		MakeRequest(t, req, http.StatusOK)
+	})
+
 	session := loginUser(t, "user1")
 	token := getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeWriteUser)