34 lines
797 B
Go
34 lines
797 B
Go
package aggregation
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import (
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"testing"
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"github.com/pingcap/parser/ast"
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"github.com/pingcap/parser/mysql"
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"github.com/pingcap/tidb/expression"
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"github.com/pingcap/tidb/types"
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"github.com/pingcap/tidb/util/mock"
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"github.com/stretchr/testify/require"
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)
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func TestClone(t *testing.T) {
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ctx := mock.NewContext()
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col := &expression.Column{
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UniqueID: 0,
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RetType: types.NewFieldType(mysql.TypeLonglong),
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}
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desc, err := newBaseFuncDesc(ctx, ast.AggFuncFirstRow, []expression.Expression{col})
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require.NoError(t, err)
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cloned := desc.clone()
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require.True(t, desc.equal(ctx, cloned))
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col1 := &expression.Column{
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UniqueID: 1,
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RetType: types.NewFieldType(mysql.TypeVarchar),
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}
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cloned.Args[0] = col1
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require.Equal(t, col, desc.Args[0])
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require.False(t, desc.equal(ctx, cloned))
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}
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