github.com/matrixorigin/matrixone@v1.2.0/pkg/fileservice/memorycache/data_test.go (about)

     1  // Copyright 2022 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 memorycache
    16  
    17  import (
    18  	"sync/atomic"
    19  	"testing"
    20  
    21  	"github.com/stretchr/testify/require"
    22  )
    23  
    24  func TestData(t *testing.T) {
    25  	var size atomic.Int64
    26  
    27  	d := newData(1, &size)
    28  	require.NotEqual(t, nil, d)
    29  	// test refs
    30  	require.Equal(t, int32(1), d.refs())
    31  	// test Buf
    32  	buf := d.Buf()
    33  	buf[0] = 1
    34  	require.Equal(t, byte(1), d.Buf()[0])
    35  	// test Truncate
    36  	d.Truncate(0)
    37  	require.Equal(t, 0, len(d.Buf()))
    38  	// test acquire
    39  	d.acquire()
    40  	require.Equal(t, int32(2), d.refs())
    41  	// test release
    42  	d.release(&size)
    43  	require.Equal(t, int32(1), d.refs())
    44  	d.release(&size)
    45  	require.Equal(t, int64(0), size.Load())
    46  	// boundary test
    47  	d = newData(0, &size)
    48  	require.Equal(t, (*Data)(nil), d)
    49  }