add oracle tests

Author: lunny

dialect_oracle.go

@@ -742,7 +742,7 @@ func (db *oracle) GetColumns(tableName string) ([]string, map[string]*core.Colum
 			col.SQLType = core.SQLType{Name: core.TimeStampz, DefaultLength: 0, DefaultLength2: 0}
 		case "NUMBER":
 			col.SQLType = core.SQLType{Name: core.Double, DefaultLength: len1, DefaultLength2: len2}
-		case "LONG", "LONG RAW":
+		case "LONG", "LONG RAW", "NCLOB", "CLOB":
 			col.SQLType = core.SQLType{Name: core.Text, DefaultLength: 0, DefaultLength2: 0}
 		case "RAW":
 			col.SQLType = core.SQLType{Name: core.Binary, DefaultLength: 0, DefaultLength2: 0}

oracle_test.go

@@ -0,0 +1,11 @@
+// Copyright 20190 The Xorm Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build oracle
+
+package xorm
+
+import (
+	_ "github.com/mattn/go-oci8"
+)

test_oracle.sh

@@ -0,0 +1 @@
+go test -tags=oracle -db=oci8 -conn_str="system/oracle@localhost:1521/xe"