Fix various trivial problems (#36953)

1. remove `TEST_CONFLICTING_PATCHES_WITH_GIT_APPLY`
* it defaults to false and is unlikely to be useful for most users (see
#22130)
* with new git versions (>= 2.40), "merge-tree" is used,
"checkConflictsByTmpRepo" isn't called, the option does nothing.
2. fix fragile `db.Cell2Int64` (new: `CellToInt`)
3. allow more routes in maintenance mode (e.g.: captcha)
4. fix MockLocale html escaping to make it have the same behavior as
production locale

models/auth/source_test.go

@@ -17,13 +17,9 @@ import (
 )
 
 type TestSource struct {
-	auth_model.ConfigBase
+	auth_model.ConfigBase `json:"-"`
 
-	Provider                      string
-	ClientID                      string
-	ClientSecret                  string
-	OpenIDConnectAutoDiscoveryURL string
-	IconURL                       string
+	TestField string
 }
 
 // FromDB fills up a LDAPConfig from serialized format.
@@ -37,27 +33,23 @@ func (source *TestSource) ToDB() ([]byte, error) {
 }
 
 func TestDumpAuthSource(t *testing.T) {
-	assert.NoError(t, unittest.PrepareTestDatabase())
+	require.NoError(t, unittest.PrepareTestDatabase())
 
 	authSourceSchema, err := unittest.GetXORMEngine().TableInfo(new(auth_model.Source))
-	assert.NoError(t, err)
+	require.NoError(t, err)
 
 	auth_model.RegisterTypeConfig(auth_model.OAuth2, new(TestSource))
+	source := &auth_model.Source{
+		Type: auth_model.OAuth2,
+		Name: "TestSource",
+		Cfg:  &TestSource{TestField: "TestValue"},
+	}
+	require.NoError(t, auth_model.CreateSource(t.Context(), source))
 
-	auth_model.CreateSource(t.Context(), &auth_model.Source{
-		Type:     auth_model.OAuth2,
-		Name:     "TestSource",
-		IsActive: false,
-		Cfg: &TestSource{
-			Provider: "ConvertibleSourceName",
-			ClientID: "42",
-		},
-	})
-
-	sb := new(strings.Builder)
-
-	// TODO: this test is quite hacky, it should use a low-level "select" (without model processors) but not a database dump
-	engine := unittest.GetXORMEngine()
-	require.NoError(t, engine.DumpTables([]*schemas.Table{authSourceSchema}, sb))
-	assert.Contains(t, sb.String(), `"Provider":"ConvertibleSourceName"`)
+	// intentionally test the "dump" to make sure the dumped JSON is correct: https://github.com/go-gitea/gitea/pull/16847
+	sb := &strings.Builder{}
+	require.NoError(t, unittest.GetXORMEngine().DumpTables([]*schemas.Table{authSourceSchema}, sb))
+	// the dumped SQL is something like:
+	// INSERT INTO `login_source` (`id`, `type`, `name`, `is_active`, `is_sync_enabled`, `two_factor_policy`, `cfg`, `created_unix`, `updated_unix`) VALUES (1,6,'TestSource',0,0,'','{"TestField":"TestValue"}',1774179784,1774179784);
+	assert.Contains(t, sb.String(), `'{"TestField":"TestValue"}'`)
 }