136 lines
3.5 KiB
Go
136 lines
3.5 KiB
Go
// Copyright 2020 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 executor
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import (
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"testing"
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"github.com/pingcap/errors"
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"github.com/pingcap/tidb/domain"
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"github.com/pingcap/tidb/executor/internal/exec"
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"github.com/pingcap/tidb/planner/core"
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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 TestBatchRetrieverHelper(t *testing.T) {
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rangeStarts := make([]int, 0)
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rangeEnds := make([]int, 0)
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collect := func(start, end int) error {
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rangeStarts = append(rangeStarts, start)
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rangeEnds = append(rangeEnds, end)
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return nil
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}
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r := &batchRetrieverHelper{}
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err := r.nextBatch(collect)
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require.NoError(t, err)
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require.Equal(t, rangeStarts, []int{})
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require.Equal(t, rangeEnds, []int{})
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r = &batchRetrieverHelper{
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retrieved: true,
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batchSize: 3,
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totalRows: 10,
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}
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err = r.nextBatch(collect)
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require.NoError(t, err)
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require.Equal(t, rangeStarts, []int{})
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require.Equal(t, rangeEnds, []int{})
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r = &batchRetrieverHelper{
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batchSize: 3,
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totalRows: 10,
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}
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err = r.nextBatch(func(start, end int) error {
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return errors.New("some error")
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})
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require.Error(t, err)
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require.True(t, r.retrieved)
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r = &batchRetrieverHelper{
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batchSize: 3,
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totalRows: 10,
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}
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for !r.retrieved {
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err = r.nextBatch(collect)
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require.NoError(t, err)
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}
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require.Equal(t, rangeStarts, []int{0, 3, 6, 9})
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require.Equal(t, rangeEnds, []int{3, 6, 9, 10})
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rangeStarts = rangeStarts[:0]
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rangeEnds = rangeEnds[:0]
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r = &batchRetrieverHelper{
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batchSize: 3,
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totalRows: 9,
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}
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for !r.retrieved {
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err = r.nextBatch(collect)
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require.NoError(t, err)
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}
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require.Equal(t, rangeStarts, []int{0, 3, 6})
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require.Equal(t, rangeEnds, []int{3, 6, 9})
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rangeStarts = rangeStarts[:0]
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rangeEnds = rangeEnds[:0]
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r = &batchRetrieverHelper{
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batchSize: 100,
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totalRows: 10,
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}
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for !r.retrieved {
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err = r.nextBatch(collect)
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require.NoError(t, err)
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}
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require.Equal(t, rangeStarts, []int{0})
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require.Equal(t, rangeEnds, []int{10})
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}
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func TestEqualDatumsAsBinary(t *testing.T) {
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tests := []struct {
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a []interface{}
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b []interface{}
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same bool
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}{
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// Positive cases
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{[]interface{}{1}, []interface{}{1}, true},
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{[]interface{}{1, "aa"}, []interface{}{1, "aa"}, true},
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{[]interface{}{1, "aa", 1}, []interface{}{1, "aa", 1}, true},
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// negative cases
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{[]interface{}{1}, []interface{}{2}, false},
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{[]interface{}{1, "a"}, []interface{}{1, "aaaaaa"}, false},
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{[]interface{}{1, "aa", 3}, []interface{}{1, "aa", 2}, false},
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// Corner cases
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{[]interface{}{}, []interface{}{}, true},
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{[]interface{}{nil}, []interface{}{nil}, true},
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{[]interface{}{}, []interface{}{1}, false},
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{[]interface{}{1}, []interface{}{1, 1}, false},
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{[]interface{}{nil}, []interface{}{1}, false},
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}
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ctx := core.MockContext()
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base := exec.NewBaseExecutor(ctx, nil, 0)
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defer func() {
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domain.GetDomain(ctx).StatsHandle().Close()
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}()
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e := &InsertValues{BaseExecutor: base}
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for _, tt := range tests {
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res, err := e.equalDatumsAsBinary(types.MakeDatums(tt.a...), types.MakeDatums(tt.b...))
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require.NoError(t, err)
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require.Equal(t, tt.same, res)
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}
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}
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