github.com/matrixorigin/matrixone@v0.7.0/pkg/sql/colexec/merge/merge_test.go (about)

     1  // Copyright 2021 Matrix Origin
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package merge
    16  
    17  import (
    18  	"bytes"
    19  	"context"
    20  	"testing"
    21  
    22  	"github.com/matrixorigin/matrixone/pkg/common/mpool"
    23  	"github.com/matrixorigin/matrixone/pkg/container/batch"
    24  	"github.com/matrixorigin/matrixone/pkg/container/types"
    25  	"github.com/matrixorigin/matrixone/pkg/testutil"
    26  	"github.com/matrixorigin/matrixone/pkg/vm/process"
    27  	"github.com/stretchr/testify/require"
    28  )
    29  
    30  const (
    31  	Rows = 10 // default rows
    32  )
    33  
    34  // add unit tests for cases
    35  type mergeTestCase struct {
    36  	arg    *Argument
    37  	types  []types.Type
    38  	proc   *process.Process
    39  	cancel context.CancelFunc
    40  }
    41  
    42  var (
    43  	tcs []mergeTestCase
    44  )
    45  
    46  func init() {
    47  	tcs = []mergeTestCase{
    48  		newTestCase(),
    49  	}
    50  }
    51  
    52  func TestString(t *testing.T) {
    53  	buf := new(bytes.Buffer)
    54  	for _, tc := range tcs {
    55  		String(tc.arg, buf)
    56  	}
    57  }
    58  
    59  func TestPrepare(t *testing.T) {
    60  	for _, tc := range tcs {
    61  		err := Prepare(tc.proc, tc.arg)
    62  		require.NoError(t, err)
    63  	}
    64  }
    65  
    66  func TestMerge(t *testing.T) {
    67  	for _, tc := range tcs {
    68  		err := Prepare(tc.proc, tc.arg)
    69  		require.NoError(t, err)
    70  		tc.proc.Reg.MergeReceivers[0].Ch <- newBatch(t, tc.types, tc.proc, Rows)
    71  		tc.proc.Reg.MergeReceivers[0].Ch <- &batch.Batch{}
    72  		tc.proc.Reg.MergeReceivers[0].Ch <- nil
    73  		tc.proc.Reg.MergeReceivers[1].Ch <- newBatch(t, tc.types, tc.proc, Rows)
    74  		tc.proc.Reg.MergeReceivers[1].Ch <- &batch.Batch{}
    75  		tc.proc.Reg.MergeReceivers[1].Ch <- nil
    76  		for {
    77  			if ok, err := Call(0, tc.proc, tc.arg, false, false); ok || err != nil {
    78  				if tc.proc.Reg.InputBatch != nil {
    79  					tc.proc.Reg.InputBatch.Clean(tc.proc.Mp())
    80  				}
    81  				break
    82  			}
    83  			if tc.proc.Reg.InputBatch != nil {
    84  				tc.proc.Reg.InputBatch.Clean(tc.proc.Mp())
    85  			}
    86  		}
    87  		for i := 0; i < len(tc.proc.Reg.MergeReceivers); i++ { // simulating the end of a pipeline
    88  			for len(tc.proc.Reg.MergeReceivers[i].Ch) > 0 {
    89  				bat := <-tc.proc.Reg.MergeReceivers[i].Ch
    90  				if bat != nil {
    91  					bat.Clean(tc.proc.Mp())
    92  				}
    93  			}
    94  		}
    95  		require.Equal(t, int64(0), tc.proc.Mp().CurrNB())
    96  	}
    97  }
    98  
    99  func newTestCase() mergeTestCase {
   100  	proc := testutil.NewProcessWithMPool(mpool.MustNewZero())
   101  	proc.Reg.MergeReceivers = make([]*process.WaitRegister, 2)
   102  	ctx, cancel := context.WithCancel(context.Background())
   103  	proc.Reg.MergeReceivers[0] = &process.WaitRegister{
   104  		Ctx: ctx,
   105  		Ch:  make(chan *batch.Batch, 3),
   106  	}
   107  	proc.Reg.MergeReceivers[1] = &process.WaitRegister{
   108  		Ctx: ctx,
   109  		Ch:  make(chan *batch.Batch, 3),
   110  	}
   111  	return mergeTestCase{
   112  		proc: proc,
   113  		types: []types.Type{
   114  			{Oid: types.T_int8},
   115  		},
   116  		arg:    new(Argument),
   117  		cancel: cancel,
   118  	}
   119  }
   120  
   121  // create a new block based on the type information
   122  func newBatch(t *testing.T, ts []types.Type, proc *process.Process, rows int64) *batch.Batch {
   123  	return testutil.NewBatch(ts, false, int(rows), proc.Mp())
   124  }