Add test to ensure that dumping of login sources remains correct (go-…

…gitea#16847)

go-gitea#16831 has occurred because of a missed regression. This PR adds a simple test to
try to prevent this occuring again.

Signed-off-by: Andrew Thornton <art27@cantab.net>

models/models_test.go

@@ -8,9 +8,12 @@ import (
 	"io/ioutil"
 	"os"
 	"path/filepath"
+	"strings"
 	"testing"
 
+	"code.gitea.io/gitea/modules/auth/oauth2"
 	"code.gitea.io/gitea/modules/setting"
+	"xorm.io/xorm/schemas"
 
 	"github.com/stretchr/testify/assert"
 )
@@ -32,3 +35,26 @@ func TestDumpDatabase(t *testing.T) {
 		assert.NoError(t, DumpDatabase(filepath.Join(dir, dbType+".sql"), dbType))
 	}
 }
+
+func TestDumpLoginSource(t *testing.T) {
+	assert.NoError(t, PrepareTestDatabase())
+
+	loginSourceSchema, err := x.TableInfo(new(LoginSource))
+	assert.NoError(t, err)
+
+	CreateLoginSource(&LoginSource{
+		Type:      LoginOAuth2,
+		Name:      "TestSource",
+		IsActived: false,
+		Cfg: &OAuth2Config{
+			Provider:         "TestSourceProvider",
+			CustomURLMapping: &oauth2.CustomURLMapping{},
+		},
+	})
+
+	sb := new(strings.Builder)
+
+	x.DumpTables([]*schemas.Table{loginSourceSchema}, sb)
+
+	assert.Contains(t, sb.String(), `"Provider":"TestSourceProvider"`)
+}