github.com/matrixorigin/matrixone@v1.2.0/pkg/vm/engine/tae/logtail/service/chunk_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 service
    16  
    17  import (
    18  	"bytes"
    19  	"testing"
    20  
    21  	"github.com/stretchr/testify/require"
    22  )
    23  
    24  func TestChunk(t *testing.T) {
    25  	data := []byte("hello, world")
    26  
    27  	for limit := 1; limit <= len(data)+1; limit++ {
    28  		chunks := Split(data, limit)
    29  
    30  		merged := make([]byte, 0, len(data))
    31  		merged = AppendChunk(merged, chunks...)
    32  
    33  		require.True(t, bytes.Equal(data, merged))
    34  	}
    35  }
    36  
    37  func TestSplit(t *testing.T) {
    38  	buf := make([]byte, 11)
    39  	chunks := Split(buf, 5)
    40  	require.Equal(t, 3, len(chunks))
    41  	require.Equal(t, 5, len(chunks[0]))
    42  	require.Equal(t, 5, len(chunks[1]))
    43  	require.Equal(t, 1, len(chunks[2]))
    44  }