github.com/matrixorigin/matrixone@v0.7.0/pkg/vm/engine/tae/logtail/service/chunk_test.go (about)

     1  // Copyright 2021 Matrix Origin
     2  // Licensed under the Apache License, Version 2.0 (the "License");
     3  // you may not use this file except in compliance with the License.
     4  // You may obtain a copy of the License at
     5  //
     6  //	http://www.apache.org/licenses/LICENSE-2.0
     7  //
     8  // Unless required by applicable law or agreed to in writing, software
     9  // distributed under the License is distributed on an "AS IS" BASIS,
    10  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package service
    15  
    16  import (
    17  	"bytes"
    18  	"testing"
    19  
    20  	"github.com/stretchr/testify/require"
    21  )
    22  
    23  func TestChunk(t *testing.T) {
    24  	data := []byte("hello, world")
    25  
    26  	for limit := 1; limit <= len(data)+1; limit++ {
    27  		chunks := Split(data, limit)
    28  
    29  		merged := make([]byte, 0, len(data))
    30  		merged = AppendChunk(merged, chunks...)
    31  
    32  		require.True(t, bytes.Equal(data, merged))
    33  	}
    34  }
    35  
    36  func TestSplit(t *testing.T) {
    37  	buf := make([]byte, 11)
    38  	chunks := Split(buf, 5)
    39  	require.Equal(t, 3, len(chunks))
    40  	require.Equal(t, 5, len(chunks[0]))
    41  	require.Equal(t, 5, len(chunks[1]))
    42  	require.Equal(t, 1, len(chunks[2]))
    43  }