github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/pkg/fsutil/fadvise_test.go (about)

     1  // Copyright 2022 PingCAP, Inc.
     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  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  package fsutil
    14  
    15  import (
    16  	"os"
    17  	"path/filepath"
    18  	"testing"
    19  
    20  	"github.com/stretchr/testify/require"
    21  )
    22  
    23  func TestDropPageCache(t *testing.T) {
    24  	t.Parallel()
    25  	dir := t.TempDir()
    26  	path := filepath.Join(dir, "file.test")
    27  
    28  	err := os.WriteFile(path, []byte("hello world"), 0o600)
    29  	require.Nil(t, err)
    30  
    31  	err = DropPageCache(path)
    32  	require.Nil(t, err)
    33  }