ast: add datum_test.go

ast/datum_test.go

@@ -0,0 +1,40 @@
+// Copyright 2016 PingCAP, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ast
+
+import (
+	. "github.com/pingcap/check"
+)
+
+var _ = Suite(&testDatumSuite{})
+
+type testDatumSuite struct {
+}
+
+func (ts *testDatumSuite) TestDatum(c *C) {
+	values := []interface{}{
+		int64(1),
+		uint64(1),
+		1.1,
+		"abc",
+		[]byte("abc"),
+		[]int{1},
+	}
+	for _, val := range values {
+		var d Datum
+		d.SetValue(val)
+		x := d.GetValue()
+		c.Assert(x, DeepEquals, val)
+	}
+}