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65 lines
1.5 KiB
65 lines
1.5 KiB
// Copyright 2016 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package kv
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import (
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"context"
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"strconv"
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. "github.com/pingcap/check"
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)
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var _ = Suite(testUtilsSuite{})
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type testUtilsSuite struct {
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}
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func (s testUtilsSuite) TestIncInt64(c *C) {
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mb := NewMemDbBuffer()
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key := Key("key")
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v, err := IncInt64(mb, key, 1)
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c.Check(err, IsNil)
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c.Check(v, Equals, int64(1))
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v, err = IncInt64(mb, key, 10)
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c.Check(err, IsNil)
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c.Check(v, Equals, int64(11))
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err = mb.Set(key, []byte("not int"))
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c.Check(err, IsNil)
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_, err = IncInt64(mb, key, 1)
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c.Check(err, NotNil)
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// test int overflow
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maxUint32 := int64(^uint32(0))
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err = mb.Set(key, []byte(strconv.FormatInt(maxUint32, 10)))
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c.Check(err, IsNil)
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v, err = IncInt64(mb, key, 1)
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c.Check(err, IsNil)
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c.Check(v, Equals, maxUint32+1)
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}
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func (s testUtilsSuite) TestGetInt64(c *C) {
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mb := NewMemDbBuffer()
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key := Key("key")
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v, err := GetInt64(context.TODO(), mb, key)
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c.Check(v, Equals, int64(0))
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c.Check(err, IsNil)
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_, err = IncInt64(mb, key, 15)
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c.Check(err, IsNil)
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v, err = GetInt64(context.TODO(), mb, key)
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c.Check(v, Equals, int64(15))
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c.Check(err, IsNil)
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}
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