diff options
Diffstat (limited to 'tests/matrix/matrix_test.go')
| -rw-r--r-- | tests/matrix/matrix_test.go | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/tests/matrix/matrix_test.go b/tests/matrix/matrix_test.go index 9f3b13a..ad2eeae 100644 --- a/tests/matrix/matrix_test.go +++ b/tests/matrix/matrix_test.go @@ -26,7 +26,6 @@ import ( "golang.org/x/sys/unix" "github.com/rfjakob/gocryptfs/internal/stupidgcm" - "github.com/rfjakob/gocryptfs/internal/syscallcompat" "github.com/rfjakob/gocryptfs/tests/test_helpers" ) @@ -208,153 +207,6 @@ func TestTruncate(t *testing.T) { } } -const ( - // From man statfs - TMPFS_MAGIC = 0x01021994 - EXT4_SUPER_MAGIC = 0xef53 -) - -// isWellKnownFS decides if the backing filesystem is well-known. -// The expected allocated sizes are only valid on tmpfs and ext4. btrfs -// gives different results, but that's not an error. -func isWellKnownFS(fn string) bool { - var fs syscall.Statfs_t - err := syscall.Statfs(fn, &fs) - if err != nil { - panic(err) - } - if fs.Type == EXT4_SUPER_MAGIC || fs.Type == TMPFS_MAGIC { - return true - } - return false -} - -const FALLOC_DEFAULT = 0x00 -const FALLOC_FL_KEEP_SIZE = 0x01 - -func TestFallocate(t *testing.T) { - if runtime.GOOS == "darwin" { - t.Skipf("OSX does not support fallocate") - } - fn := test_helpers.DefaultPlainDir + "/fallocate" - file, err := os.Create(fn) - if err != nil { - t.FailNow() - } - defer file.Close() - wellKnown := isWellKnownFS(test_helpers.DefaultCipherDir) - fd := int(file.Fd()) - nBytes := test_helpers.Du(t, fd) - if nBytes != 0 { - t.Fatalf("Empty file has %d bytes", nBytes) - } - // Allocate 30 bytes, keep size - // gocryptfs || (0 blocks) - // ext4 | d | (1 block) - // ^ d = data block - err = syscallcompat.Fallocate(fd, FALLOC_FL_KEEP_SIZE, 0, 30) - if err != nil { - t.Error(err) - } - var want int64 - nBytes = test_helpers.Du(t, fd) - want = 4096 - if nBytes != want { - t.Errorf("Expected %d allocated bytes, have %d", want, nBytes) - } - test_helpers.VerifySize(t, fn, 0) - // Three ciphertext blocks. The middle one should be a file hole. - // gocryptfs | h | h | d| (1 block) - // ext4 | d | h | d | (2 blocks) - // ^ h = file hole - // (Note that gocryptfs blocks are slightly bigger than the ext4 blocks, - // but the last one is partial) - err = file.Truncate(9000) - if err != nil { - t.Fatal(err) - } - nBytes = test_helpers.Du(t, fd) - want = 2 * 4096 - if wellKnown && nBytes != want { - t.Errorf("Expected %d allocated bytes, have %d", want, nBytes) - } - if md5 := test_helpers.Md5fn(fn); md5 != "5420afa22f6423a9f59e669540656bb4" { - t.Errorf("Wrong md5 %s", md5) - } - // Allocate the whole file space - // gocryptfs | h | h | d| (1 block) - // ext4 | d | d | d | (3 blocks - err = syscallcompat.Fallocate(fd, FALLOC_DEFAULT, 0, 9000) - if err != nil { - t.Fatal(err) - } - nBytes = test_helpers.Du(t, fd) - want = 3 * 4096 - if nBytes != want { - t.Errorf("Expected %d allocated bytes, have %d", want, nBytes) - } - // Neither apparent size nor content should have changed - test_helpers.VerifySize(t, fn, 9000) - if md5 := test_helpers.Md5fn(fn); md5 != "5420afa22f6423a9f59e669540656bb4" { - t.Errorf("Wrong md5 %s", md5) - } - - // Partial block on the end. The first ext4 block is dirtied by the header. - // gocryptfs | h | h | d| (1 block) - // ext4 | d | h | d | (2 blocks) - file.Truncate(0) - file.Truncate(9000) - nBytes = test_helpers.Du(t, fd) - want = 2 * 4096 - if wellKnown && nBytes != want { - t.Errorf("Expected %d allocated bytes, have %d", want, nBytes) - } - // Allocate 10 bytes in the second block - // gocryptfs | h | h | d| (1 block) - // ext4 | d | d | d | (3 blocks) - syscallcompat.Fallocate(fd, FALLOC_DEFAULT, 5000, 10) - nBytes = test_helpers.Du(t, fd) - want = 3 * 4096 - if wellKnown && nBytes != want { - t.Errorf("Expected %d allocated bytes, have %d", want, nBytes) - } - // Neither apparent size nor content should have changed - test_helpers.VerifySize(t, fn, 9000) - if md5 := test_helpers.Md5fn(fn); md5 != "5420afa22f6423a9f59e669540656bb4" { - t.Errorf("Wrong md5 %s", md5) - } - // Grow the file to 4 blocks - // gocryptfs | h | h | d |d| (2 blocks) - // ext4 | d | d | d | d | (4 blocks) - syscallcompat.Fallocate(fd, FALLOC_DEFAULT, 15000, 10) - nBytes = test_helpers.Du(t, fd) - want = 4 * 4096 - if wellKnown && nBytes != want { - t.Errorf("Expected %d allocated bytes, have %d", want, nBytes) - } - test_helpers.VerifySize(t, fn, 15010) - if md5 := test_helpers.Md5fn(fn); md5 != "c4c44c7a41ab7798a79d093eb44f99fc" { - t.Errorf("Wrong md5 %s", md5) - } - // Shrinking a file using fallocate should have no effect - for _, off := range []int64{0, 10, 2000, 5000} { - for _, sz := range []int64{0, 1, 42, 6000} { - syscallcompat.Fallocate(fd, FALLOC_DEFAULT, off, sz) - test_helpers.VerifySize(t, fn, 15010) - if md5 := test_helpers.Md5fn(fn); md5 != "c4c44c7a41ab7798a79d093eb44f99fc" { - t.Errorf("Wrong md5 %s", md5) - } - } - } - // Cleanup - syscall.Unlink(fn) - if !wellKnown { - // Even though most tests have been executed still, inform the user - // that some were disabled - t.Skipf("backing fs is not ext4 or tmpfs, skipped some disk-usage checks\n") - } -} - func TestAppend(t *testing.T) { fn := test_helpers.DefaultPlainDir + "/append" file, err := os.Create(fn) |