63 lines
1.6 KiB
Go
63 lines
1.6 KiB
Go
// Copyright 2022 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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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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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 generic_test
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import (
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"sort"
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"testing"
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"github.com/pingcap/tidb/pkg/util/generic"
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"github.com/stretchr/testify/require"
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)
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func TestSyncMap(t *testing.T) {
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sm := generic.NewSyncMap[int64, string](10)
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sm.Store(1, "a")
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sm.Store(2, "b")
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// Load an exist key.
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v, ok := sm.Load(1)
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require.True(t, ok)
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require.Equal(t, "a", v)
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// Load a non-exist key.
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v, ok = sm.Load(3)
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require.False(t, ok)
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require.Equal(t, "", v)
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// Overwrite the value.
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sm.Store(1, "c")
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v, ok = sm.Load(1)
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require.True(t, ok)
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require.Equal(t, "c", v)
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// Drop an exist key.
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sm.Delete(1)
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v, ok = sm.Load(1)
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require.False(t, ok)
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require.Equal(t, "", v)
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// Drop a non-exist key.
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sm.Delete(3)
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require.Equal(t, []int64{2}, sm.Keys())
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v, ok = sm.Load(3)
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require.False(t, ok)
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require.Equal(t, "", v)
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// Test the Keys() method.
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sm = generic.NewSyncMap[int64, string](10)
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sm.Store(2, "b")
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sm.Store(1, "a")
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sm.Store(3, "c")
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keys := sm.Keys()
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sort.Slice(keys, func(i, j int) bool { return keys[i] < keys[j] })
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require.Equal(t, []int64{1, 2, 3}, keys)
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}
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