46 lines
1.3 KiB
Go
46 lines
1.3 KiB
Go
// Copyright 2021 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 aggregation
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import (
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"testing"
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"time"
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"github.com/pingcap/tidb/sessionctx/stmtctx"
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"github.com/pingcap/tidb/types"
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"github.com/stretchr/testify/require"
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)
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func TestDistinct(t *testing.T) {
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sc := &stmtctx.StatementContext{TimeZone: time.Local}
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dc := createDistinctChecker(sc)
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testCases := []struct {
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vals []interface{}
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expect bool
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}{
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{[]interface{}{1, 1}, true},
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{[]interface{}{1, 1}, false},
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{[]interface{}{1, 2}, true},
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{[]interface{}{1, 2}, false},
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{[]interface{}{1, nil}, true},
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{[]interface{}{1, nil}, false},
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}
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for _, tc := range testCases {
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d, err := dc.Check(types.MakeDatums(tc.vals...))
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require.NoError(t, err)
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require.Equal(t, tc.expect, d)
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}
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}
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