MemFSTest.ModifyExistingFile_InSubDir
parent
f412eaa60a
commit
52f2e5fec5
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@ -481,7 +481,62 @@ func (t *MemFSTest) ModifyExistingFile_InRoot() {
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}
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func (t *MemFSTest) ModifyExistingFile_InSubDir() {
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AssertTrue(false, "TODO")
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var err error
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var n int
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var fi os.FileInfo
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var stat *syscall.Stat_t
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// Create a sub-directory.
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dirName := path.Join(t.mfs.Dir(), "dir")
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err = os.Mkdir(dirName, 0700)
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AssertEq(nil, err)
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// Write a file.
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fileName := path.Join(dirName, "foo")
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createTime := t.clock.Now()
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err = ioutil.WriteFile(fileName, []byte("Jello, world!"), 0600)
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AssertEq(nil, err)
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// Simulate time advancing.
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t.clock.AdvanceTime(time.Second)
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// Open the file and modify it.
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f, err := os.OpenFile(fileName, os.O_WRONLY, 0400)
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t.toClose = append(t.toClose, f)
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AssertEq(nil, err)
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modifyTime := t.clock.Now()
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n, err = f.WriteAt([]byte("H"), 0)
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AssertEq(nil, err)
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AssertEq(1, n)
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// Simulate time advancing.
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t.clock.AdvanceTime(time.Second)
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// Stat the file.
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fi, err = os.Stat(fileName)
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stat = fi.Sys().(*syscall.Stat_t)
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AssertEq(nil, err)
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ExpectEq("foo", fi.Name())
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ExpectEq(len("Hello, world!"), fi.Size())
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ExpectEq(0600, fi.Mode())
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ExpectEq(0, fi.ModTime().Sub(modifyTime))
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ExpectFalse(fi.IsDir())
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ExpectNe(0, stat.Ino)
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ExpectEq(1, stat.Nlink)
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ExpectEq(currentUid(), stat.Uid)
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ExpectEq(currentGid(), stat.Gid)
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ExpectEq(len("Hello, world!"), stat.Size)
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ExpectEq(0, timespecToTime(stat.Mtimespec).Sub(modifyTime))
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ExpectEq(0, timespecToTime(stat.Birthtimespec).Sub(createTime))
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// Read the file back.
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slice, err := ioutil.ReadFile(fileName)
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AssertEq(nil, err)
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ExpectEq("Hello, world!", string(slice))
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}
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func (t *MemFSTest) UnlinkFile_Exists() {
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