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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License. See LICENSE in the project root for license information.
package file
import (
"context"
"os"
"path/filepath"
"testing"
"github.com/stretchr/testify/require"
)
var ctx = context.Background()
func TestReadWriteDelete(t *testing.T) {
for _, test := range []struct {
desc string
initialData, want []byte
}{
{desc: "Test when the file exists", initialData: []byte("data"), want: []byte("want")},
{desc: "Test when the file doesn't exist", want: []byte("want")},
} {
t.Run(test.desc, func(t *testing.T) {
p := filepath.Join(t.TempDir(), t.Name())
if test.initialData != nil {
require.NoError(t, os.MkdirAll(filepath.Dir(p), 0700))
f, err := os.OpenFile(p, os.O_CREATE|os.O_EXCL|os.O_RDWR, 0600)
require.NoError(t, err)
_, err = f.Write(test.initialData)
require.NoError(t, err)
require.NoError(t, f.Close())
}
a, err := New(p)
require.NoError(t, err)
if test.initialData != nil {
actual, err := a.Read(ctx)
require.NoError(t, err)
require.Equal(t, test.initialData, actual)
}
cp := make([]byte, len(test.want))
copy(cp, test.want)
err = a.Write(ctx, cp)
require.NoError(t, err)
actual, err := a.Read(ctx)
require.NoError(t, err)
require.Equal(t, test.want, actual)
require.NoError(t, a.Delete(context.Background()))
})
}
}
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