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-rw-r--r--tests/matrix/fallocate_test.go17
1 files changed, 17 insertions, 0 deletions
diff --git a/tests/matrix/fallocate_test.go b/tests/matrix/fallocate_test.go
index 6928b4a..dde0685 100644
--- a/tests/matrix/fallocate_test.go
+++ b/tests/matrix/fallocate_test.go
@@ -148,6 +148,23 @@ func TestFallocate(t *testing.T) {
}
}
}
+ // We used to allocate 18 bytes too much:
+ // https://github.com/rfjakob/gocryptfs/issues/311
+ //
+ // 8110 bytes of plaintext should get us exactly 8192 bytes of ciphertext.
+ err = file.Truncate(0)
+ if err != nil {
+ t.Fatal(err)
+ }
+ err = syscallcompat.Fallocate(fd, FALLOC_DEFAULT, 0, 8110)
+ if err != nil {
+ t.Fatal(err)
+ }
+ nBytes = test_helpers.Du(t, fd)
+ want = 8192
+ if nBytes != want {
+ t.Errorf("Expected %d allocated bytes, have %d", want, nBytes)
+ }
// Cleanup
syscall.Unlink(fn)
if !wellKnown {