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Add unit test for RebaseArchiveEntries

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Signed-off-by: yangshukui <yangshukui@huawei.com>
This commit is contained in:
yangshukui 2017-08-07 16:40:54 +08:00
parent 8c72417b51
commit 82eb9002e9
1 changed files with 53 additions and 0 deletions
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53
pkg/archive/archive_unix_test.go
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@ -126,6 +126,59 @@ func TestTarWithHardLink(t *testing.T) {
}
}
func TestTarWithHardLinkAndRebase(t *testing.T) {
tmpDir, err := ioutil.TempDir("", "docker-test-tar-hardlink-rebase")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tmpDir)
origin := filepath.Join(tmpDir, "origin")
if err := os.Mkdir(origin, 0700); err != nil {
t.Fatal(err)
}
if err := ioutil.WriteFile(filepath.Join(origin, "1"), []byte("hello world"), 0700); err != nil {
t.Fatal(err)
}
if err := os.Link(filepath.Join(origin, "1"), filepath.Join(origin, "2")); err != nil {
t.Fatal(err)
}
var i1, i2 uint64
if i1, err = getNlink(filepath.Join(origin, "1")); err != nil {
t.Fatal(err)
}
// sanity check that we can hardlink
if i1 != 2 {
t.Skipf("skipping since hardlinks don't work here; expected 2 links, got %d", i1)
}
dest := filepath.Join(tmpDir, "dest")
bRdr, err := TarResourceRebase(origin, "origin")
if err != nil {
t.Fatal(err)
}
dstDir, srcBase := SplitPathDirEntry(origin)
_, dstBase := SplitPathDirEntry(dest)
content := RebaseArchiveEntries(bRdr, srcBase, dstBase)
err = Untar(content, dstDir, &TarOptions{Compression: Uncompressed, NoLchown: true, NoOverwriteDirNonDir: true})
if err != nil {
t.Fatal(err)
}
if i1, err = getInode(filepath.Join(dest, "1")); err != nil {
t.Fatal(err)
}
if i2, err = getInode(filepath.Join(dest, "2")); err != nil {
t.Fatal(err)
}
if i1 != i2 {
t.Errorf("expected matching inodes, but got %d and %d", i1, i2)
}
}
func getNlink(path string) (uint64, error) {
stat, err := os.Stat(path)
if err != nil {