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Towards better test coverage of shared backing storage mounts. #525
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// test gocryptfs cipherdir mounted multiple times at the same time | ||
package sharedstorage | ||
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import ( | ||
"testing" | ||
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"golang.org/x/sys/unix" | ||
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"github.com/rfjakob/gocryptfs/tests/test_helpers" | ||
) | ||
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var flagSharestorage bool | ||
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func TestMain(m *testing.M) { | ||
flagSharestorage = false | ||
m.Run() | ||
flagSharestorage = true | ||
m.Run() | ||
} | ||
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// mountSharedstorage mounts `cipherdir` on `mnt` with or without the | ||
// `-sharedstorage` flag, depending on the global var `flagSharestorage`. | ||
func mountSharedstorage(t *testing.T, cipherdir string, mnt string) { | ||
args := []string{"-extpass=echo test"} | ||
if flagSharestorage { | ||
args = append(args, "-sharedstorage") | ||
} | ||
test_helpers.MountOrFatal(t, cipherdir, mnt, args...) | ||
} | ||
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func TestUnlink(t *testing.T) { | ||
cipherdir := test_helpers.InitFS(t) | ||
mnt1 := cipherdir + ".mnt1" | ||
mnt2 := cipherdir + ".mnt2" | ||
mountSharedstorage(t, cipherdir, mnt1) | ||
defer test_helpers.UnmountPanic(mnt1) | ||
mountSharedstorage(t, cipherdir, mnt2) | ||
defer test_helpers.UnmountPanic(mnt2) | ||
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// Create dir via mnt1 | ||
if err := unix.Mkdir(mnt1+"/foo", 0700); err != nil { | ||
t.Fatal(err) | ||
} | ||
// Replace dir with file via mnt2 | ||
if err := unix.Rmdir(mnt2 + "/foo"); err != nil { | ||
t.Fatal(err) | ||
} | ||
if fd, err := unix.Creat(mnt2+"/foo", 0600); err != nil { | ||
t.Fatal(err) | ||
} else { | ||
unix.Close(fd) | ||
} | ||
// Try to unlink via mnt1 | ||
if err := unix.Unlink(mnt1 + "/foo"); err != nil { | ||
if flagSharestorage { | ||
t.Fatal(err) | ||
} else { | ||
t.Logf("Unlink failed as expected: errno %d / %v", err, err) | ||
} | ||
} | ||
} |