test: resultx ut (#738)

pkg/resultx/resultx_test.go

@@ -0,0 +1,104 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package resultx
+
+import (
+	"testing"
+)
+
+import (
+	"github.com/stretchr/testify/assert"
+)
+
+import (
+	"github.com/arana-db/arana/pkg/proto"
+)
+
+func TestEmptyResult(t *testing.T) {
+	res := New()
+	defer Drain(res)
+	assert.Empty(t, res)
+	dataset, err := res.Dataset()
+	assert.NoError(t, err)
+	assert.Empty(t, dataset)
+	affected, err := res.RowsAffected()
+	assert.NoError(t, err)
+	assert.Equal(t, affected, uint64(0))
+	id, err := res.LastInsertId()
+	assert.NoError(t, err)
+	assert.Equal(t, id, uint64(0))
+}
+
+func TestSlimResult(t *testing.T) {
+	res := New(WithLastInsertID(1))
+	defer Drain(res)
+	assert.NotEmpty(t, res)
+	dataset, err := res.Dataset()
+	assert.NoError(t, err)
+	assert.Empty(t, dataset)
+	affected, err := res.RowsAffected()
+	assert.NoError(t, err)
+	assert.Equal(t, affected, uint64(0))
+	id, err := res.LastInsertId()
+	assert.NoError(t, err)
+	assert.Equal(t, id, uint64(1))
+}
+
+func TestFullResult(t *testing.T) {
+	res := New(WithDataset(&utDataset{}), WithRowsAffected(1))
+	defer Drain(res)
+	assert.NotEmpty(t, res)
+	dataset, err := res.Dataset()
+	assert.NoError(t, err)
+	assert.Empty(t, dataset)
+	affected, err := res.RowsAffected()
+	assert.NoError(t, err)
+	assert.Equal(t, affected, uint64(1))
+	id, err := res.LastInsertId()
+	assert.NoError(t, err)
+	assert.Equal(t, id, uint64(0))
+}
+
+func TestDsResult(t *testing.T) {
+	res := New(WithDataset(&utDataset{}))
+	defer Drain(res)
+	assert.NotEmpty(t, res)
+	dataset, err := res.Dataset()
+	assert.NoError(t, err)
+	assert.Empty(t, dataset)
+	affected, err := res.RowsAffected()
+	assert.NoError(t, err)
+	assert.Equal(t, affected, uint64(0))
+	id, err := res.LastInsertId()
+	assert.NoError(t, err)
+	assert.Equal(t, id, uint64(0))
+}
+
+type utDataset struct{}
+
+func (cu *utDataset) Close() error {
+	return nil
+}
+
+func (cu *utDataset) Fields() ([]proto.Field, error) {
+	return nil, nil
+}
+
+func (cu *utDataset) Next() (proto.Row, error) {
+	return nil, nil
+}