fix dump table name error and add some test for dump database (#6394)

models/models.go

@@ -51,8 +51,9 @@ type Engine interface {
 }
 
 var (
-	x      *xorm.Engine
+	x                  *xorm.Engine
-	tables []interface{}
+	supportedDatabases = []string{"mysql", "postgres", "mssql"}
+	tables             []interface{}
 
 	// HasEngine specifies if we have a xorm.Engine
 	HasEngine bool
@@ -350,7 +351,9 @@ func Ping() error {
 func DumpDatabase(filePath string, dbType string) error {
 	var tbs []*core.Table
 	for _, t := range tables {
-		tbs = append(tbs, x.TableInfo(t).Table)
+		t := x.TableInfo(t)
+		t.Table.Name = t.Name
+		tbs = append(tbs, t.Table)
 	}
 	if len(dbType) > 0 {
 		return x.DumpTablesToFile(tbs, filePath, core.DbType(dbType))

models/models_sqlite.go

@@ -12,4 +12,5 @@ import (
 
 func init() {
 	EnableSQLite3 = true
+	supportedDatabases = append(supportedDatabases, "sqlite3")
 }

models/models_test.go

@@ -6,6 +6,9 @@
 package models
 
 import (
+	"io/ioutil"
+	"os"
+	"path/filepath"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -93,3 +96,14 @@ func Test_getPostgreSQLConnectionString(t *testing.T) {
 		assert.Equal(t, test.Output, connStr)
 	}
 }
+
+func TestDumpDatabase(t *testing.T) {
+	assert.NoError(t, PrepareTestDatabase())
+
+	dir, err := ioutil.TempDir(os.TempDir(), "dump")
+	assert.NoError(t, err)
+
+	for _, dbType := range supportedDatabases {
+		assert.NoError(t, DumpDatabase(filepath.Join(dir, dbType+".sql"), dbType))
+	}
+}