68 lines
1.6 KiB
Go
68 lines
1.6 KiB
Go
// Copyright 2015 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package fileutil
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import (
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"io/ioutil"
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"os"
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"testing"
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)
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func TestPreallocateExtend(t *testing.T) { runPreallocTest(t, testPreallocateExtend) }
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func testPreallocateExtend(t *testing.T, f *os.File) {
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size := int64(64 * 1000)
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if err := Preallocate(f, size, true); err != nil {
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t.Fatal(err)
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}
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stat, err := f.Stat()
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if err != nil {
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t.Fatal(err)
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}
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if stat.Size() != size {
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t.Errorf("size = %d, want %d", stat.Size(), size)
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}
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}
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func TestPreallocateFixed(t *testing.T) { runPreallocTest(t, testPreallocateFixed) }
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func testPreallocateFixed(t *testing.T, f *os.File) {
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size := int64(64 * 1000)
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if err := Preallocate(f, size, false); err != nil {
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t.Fatal(err)
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}
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stat, err := f.Stat()
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if err != nil {
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t.Fatal(err)
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}
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if stat.Size() != 0 {
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t.Errorf("size = %d, want %d", stat.Size(), 0)
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}
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}
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func runPreallocTest(t *testing.T, test func(*testing.T, *os.File)) {
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p, err := ioutil.TempDir(os.TempDir(), "preallocateTest")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(p)
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f, err := ioutil.TempFile(p, "")
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if err != nil {
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t.Fatal(err)
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}
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test(t, f)
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}
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