"testing"
)
-var TEST_BLOCK = []byte("The quick brown fox jumps over the lazy dog.")
-var TEST_HASH = "e4d909c290d0fb1ca068ffaddf22cbd0"
-var TEST_HASH_PUT_RESPONSE = "e4d909c290d0fb1ca068ffaddf22cbd0+44\n"
+var TestBlock = []byte("The quick brown fox jumps over the lazy dog.")
+var TestHash = "e4d909c290d0fb1ca068ffaddf22cbd0"
+var TestHashPutResp = "e4d909c290d0fb1ca068ffaddf22cbd0+44\n"
-var TEST_BLOCK_2 = []byte("Pack my box with five dozen liquor jugs.")
-var TEST_HASH_2 = "f15ac516f788aec4f30932ffb6395c39"
+var TestBlock2 = []byte("Pack my box with five dozen liquor jugs.")
+var TestHash2 = "f15ac516f788aec4f30932ffb6395c39"
-var TEST_BLOCK_3 = []byte("Now is the time for all good men to come to the aid of their country.")
-var TEST_HASH_3 = "eed29bbffbc2dbe5e5ee0bb71888e61f"
+var TestBlock3 = []byte("Now is the time for all good men to come to the aid of their country.")
+var TestHash3 = "eed29bbffbc2dbe5e5ee0bb71888e61f"
-// BAD_BLOCK is used to test collisions and corruption.
+// BadBlock is used to test collisions and corruption.
// It must not match any test hashes.
-var BAD_BLOCK = []byte("The magic words are squeamish ossifrage.")
+var BadBlock = []byte("The magic words are squeamish ossifrage.")
// TODO(twp): Tests still to be written
//
// Prepare two test Keep volumes. Our block is stored on the second volume.
KeepVM = MakeTestVolumeManager(2)
- defer func() { KeepVM.Quit() }()
+ defer KeepVM.Close()
- vols := KeepVM.Volumes()
- if err := vols[1].Put(TEST_HASH, TEST_BLOCK); err != nil {
+ vols := KeepVM.AllReadable()
+ if err := vols[1].Put(TestHash, TestBlock); err != nil {
t.Error(err)
}
// Check that GetBlock returns success.
- result, err := GetBlock(TEST_HASH)
+ result, err := GetBlock(TestHash)
if err != nil {
t.Errorf("GetBlock error: %s", err)
}
- if fmt.Sprint(result) != fmt.Sprint(TEST_BLOCK) {
- t.Errorf("expected %s, got %s", TEST_BLOCK, result)
+ if fmt.Sprint(result) != fmt.Sprint(TestBlock) {
+ t.Errorf("expected %s, got %s", TestBlock, result)
}
}
// Create two empty test Keep volumes.
KeepVM = MakeTestVolumeManager(2)
- defer func() { KeepVM.Quit() }()
+ defer KeepVM.Close()
// Check that GetBlock returns failure.
- result, err := GetBlock(TEST_HASH)
+ result, err := GetBlock(TestHash)
if err != NotFoundError {
t.Errorf("Expected NotFoundError, got %v", result)
}
// Create two test Keep volumes and store a corrupt block in one.
KeepVM = MakeTestVolumeManager(2)
- defer func() { KeepVM.Quit() }()
+ defer KeepVM.Close()
- vols := KeepVM.Volumes()
- vols[0].Put(TEST_HASH, BAD_BLOCK)
+ vols := KeepVM.AllReadable()
+ vols[0].Put(TestHash, BadBlock)
// Check that GetBlock returns failure.
- result, err := GetBlock(TEST_HASH)
+ result, err := GetBlock(TestHash)
if err != DiskHashError {
t.Errorf("Expected DiskHashError, got %v (buf: %v)", err, result)
}
// Create two test Keep volumes.
KeepVM = MakeTestVolumeManager(2)
- defer func() { KeepVM.Quit() }()
+ defer KeepVM.Close()
// Check that PutBlock stores the data as expected.
- if err := PutBlock(TEST_BLOCK, TEST_HASH); err != nil {
+ if err := PutBlock(TestBlock, TestHash); err != nil {
t.Fatalf("PutBlock: %v", err)
}
- vols := KeepVM.Volumes()
- result, err := vols[0].Get(TEST_HASH)
+ vols := KeepVM.AllReadable()
+ result, err := vols[1].Get(TestHash)
if err != nil {
t.Fatalf("Volume #0 Get returned error: %v", err)
}
- if string(result) != string(TEST_BLOCK) {
+ if string(result) != string(TestBlock) {
t.Fatalf("PutBlock stored '%s', Get retrieved '%s'",
- string(TEST_BLOCK), string(result))
+ string(TestBlock), string(result))
}
}
// Create two test Keep volumes, but cripple one of them.
KeepVM = MakeTestVolumeManager(2)
- defer func() { KeepVM.Quit() }()
+ defer KeepVM.Close()
- vols := KeepVM.Volumes()
+ vols := KeepVM.AllWritable()
vols[0].(*MockVolume).Bad = true
// Check that PutBlock stores the data as expected.
- if err := PutBlock(TEST_BLOCK, TEST_HASH); err != nil {
+ if err := PutBlock(TestBlock, TestHash); err != nil {
t.Fatalf("PutBlock: %v", err)
}
- result, err := GetBlock(TEST_HASH)
+ result, err := GetBlock(TestHash)
if err != nil {
t.Fatalf("GetBlock: %v", err)
}
- if string(result) != string(TEST_BLOCK) {
+ if string(result) != string(TestBlock) {
t.Error("PutBlock/GetBlock mismatch")
t.Fatalf("PutBlock stored '%s', GetBlock retrieved '%s'",
- string(TEST_BLOCK), string(result))
+ string(TestBlock), string(result))
}
}
// Create two test Keep volumes.
KeepVM = MakeTestVolumeManager(2)
- defer func() { KeepVM.Quit() }()
+ defer KeepVM.Close()
// Check that PutBlock returns the expected error when the hash does
// not match the block.
- if err := PutBlock(BAD_BLOCK, TEST_HASH); err != RequestHashError {
+ if err := PutBlock(BadBlock, TestHash); err != RequestHashError {
t.Error("Expected RequestHashError, got %v", err)
}
// Confirm that GetBlock fails to return anything.
- if result, err := GetBlock(TEST_HASH); err != NotFoundError {
+ if result, err := GetBlock(TestHash); err != NotFoundError {
t.Errorf("GetBlock succeeded after a corrupt block store (result = %s, err = %v)",
string(result), err)
}
// Create two test Keep volumes.
KeepVM = MakeTestVolumeManager(2)
- defer func() { KeepVM.Quit() }()
+ defer KeepVM.Close()
- // Store a corrupted block under TEST_HASH.
- vols := KeepVM.Volumes()
- vols[0].Put(TEST_HASH, BAD_BLOCK)
- if err := PutBlock(TEST_BLOCK, TEST_HASH); err != nil {
+ // Store a corrupted block under TestHash.
+ vols := KeepVM.AllWritable()
+ vols[0].Put(TestHash, BadBlock)
+ if err := PutBlock(TestBlock, TestHash); err != nil {
t.Errorf("PutBlock: %v", err)
}
- // The block on disk should now match TEST_BLOCK.
- if block, err := GetBlock(TEST_HASH); err != nil {
+ // The block on disk should now match TestBlock.
+ if block, err := GetBlock(TestHash); err != nil {
t.Errorf("GetBlock: %v", err)
- } else if bytes.Compare(block, TEST_BLOCK) != 0 {
+ } else if bytes.Compare(block, TestBlock) != 0 {
t.Errorf("GetBlock returned: '%s'", string(block))
}
}
-// PutBlockCollision
+// TestPutBlockCollision
// PutBlock returns a 400 Collision error when attempting to
// store a block that collides with another block on disk.
//
// Prepare two test Keep volumes.
KeepVM = MakeTestVolumeManager(2)
- defer func() { KeepVM.Quit() }()
+ defer KeepVM.Close()
// Store one block, then attempt to store the other. Confirm that
// PutBlock reported a CollisionError.
}
}
-// ========================================
-// FindKeepVolumes tests.
-// ========================================
-
-// TestFindKeepVolumes
-// Confirms that FindKeepVolumes finds tmpfs volumes with "/keep"
-// directories at the top level.
+// TestPutBlockTouchFails
+// When PutBlock is asked to PUT an existing block, but cannot
+// modify the timestamp, it should write a second block.
//
-func TestFindKeepVolumes(t *testing.T) {
- var tempVols [2]string
- var err error
+func TestPutBlockTouchFails(t *testing.T) {
+ defer teardown()
- defer func() {
- for _, path := range tempVols {
- os.RemoveAll(path)
- }
- }()
+ // Prepare two test Keep volumes.
+ KeepVM = MakeTestVolumeManager(2)
+ defer KeepVM.Close()
+ vols := KeepVM.AllWritable()
+
+ // Store a block and then make the underlying volume bad,
+ // so a subsequent attempt to update the file timestamp
+ // will fail.
+ vols[0].Put(TestHash, BadBlock)
+ oldMtime, err := vols[0].Mtime(TestHash)
+ if err != nil {
+ t.Fatalf("vols[0].Mtime(%s): %s\n", TestHash, err)
+ }
- // Create two directories suitable for using as keep volumes.
+ // vols[0].Touch will fail on the next call, so the volume
+ // manager will store a copy on vols[1] instead.
+ vols[0].(*MockVolume).Touchable = false
+ if err := PutBlock(TestBlock, TestHash); err != nil {
+ t.Fatalf("PutBlock: %v", err)
+ }
+ vols[0].(*MockVolume).Touchable = true
+
+ // Now the mtime on the block on vols[0] should be unchanged, and
+ // there should be a copy of the block on vols[1].
+ newMtime, err := vols[0].Mtime(TestHash)
+ if err != nil {
+ t.Fatalf("vols[0].Mtime(%s): %s\n", TestHash, err)
+ }
+ if !newMtime.Equal(oldMtime) {
+ t.Errorf("mtime was changed on vols[0]:\noldMtime = %v\nnewMtime = %v\n",
+ oldMtime, newMtime)
+ }
+ result, err := vols[1].Get(TestHash)
+ if err != nil {
+ t.Fatalf("vols[1]: %v", err)
+ }
+ if bytes.Compare(result, TestBlock) != 0 {
+ t.Errorf("new block does not match test block\nnew block = %v\n", result)
+ }
+}
+
+func TestDiscoverTmpfs(t *testing.T) {
+ var tempVols [4]string
+ var err error
+
+ // Create some directories suitable for using as keep volumes.
for i := range tempVols {
if tempVols[i], err = ioutil.TempDir("", "findvol"); err != nil {
t.Fatal(err)
}
+ defer os.RemoveAll(tempVols[i])
tempVols[i] = tempVols[i] + "/keep"
if err = os.Mkdir(tempVols[i], 0755); err != nil {
t.Fatal(err)
}
}
- // Set up a bogus PROC_MOUNTS file.
- if f, err := ioutil.TempFile("", "keeptest"); err == nil {
- for _, vol := range tempVols {
- fmt.Fprintf(f, "tmpfs %s tmpfs opts\n", path.Dir(vol))
+ // Set up a bogus ProcMounts file.
+ f, err := ioutil.TempFile("", "keeptest")
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer os.Remove(f.Name())
+ for i, vol := range tempVols {
+ // Add readonly mount points at odd indexes.
+ var opts string
+ switch i % 2 {
+ case 0:
+ opts = "rw,nosuid,nodev,noexec"
+ case 1:
+ opts = "nosuid,nodev,noexec,ro"
}
- f.Close()
- PROC_MOUNTS = f.Name()
-
- // Check that FindKeepVolumes finds the temp volumes.
- resultVols := FindKeepVolumes()
- if len(tempVols) != len(resultVols) {
- t.Fatalf("set up %d volumes, FindKeepVolumes found %d\n",
- len(tempVols), len(resultVols))
+ fmt.Fprintf(f, "tmpfs %s tmpfs %s 0 0\n", path.Dir(vol), opts)
+ }
+ f.Close()
+ ProcMounts = f.Name()
+
+ var resultVols volumeSet
+ added := resultVols.Discover()
+
+ if added != len(resultVols) {
+ t.Errorf("Discover returned %d, but added %d volumes",
+ added, len(resultVols))
+ }
+ if added != len(tempVols) {
+ t.Errorf("Discover returned %d but we set up %d volumes",
+ added, len(tempVols))
+ }
+ for i, tmpdir := range tempVols {
+ if tmpdir != resultVols[i].(*UnixVolume).root {
+ t.Errorf("Discover returned %s, expected %s\n",
+ resultVols[i].(*UnixVolume).root, tmpdir)
}
- for i := range tempVols {
- if tempVols[i] != resultVols[i] {
- t.Errorf("FindKeepVolumes returned %s, expected %s\n",
- resultVols[i], tempVols[i])
- }
+ if expectReadonly := i%2 == 1; expectReadonly != resultVols[i].(*UnixVolume).readonly {
+ t.Errorf("Discover added %s with readonly=%v, should be %v",
+ tmpdir, !expectReadonly, expectReadonly)
}
-
- os.Remove(f.Name())
}
}
-// TestFindKeepVolumesFail
-// When no Keep volumes are present, FindKeepVolumes returns an empty slice.
-//
-func TestFindKeepVolumesFail(t *testing.T) {
+func TestDiscoverNone(t *testing.T) {
defer teardown()
- // Set up a bogus PROC_MOUNTS file with no Keep vols.
- if f, err := ioutil.TempFile("", "keeptest"); err == nil {
- fmt.Fprintln(f, "rootfs / rootfs opts 0 0")
- fmt.Fprintln(f, "sysfs /sys sysfs opts 0 0")
- fmt.Fprintln(f, "proc /proc proc opts 0 0")
- fmt.Fprintln(f, "udev /dev devtmpfs opts 0 0")
- fmt.Fprintln(f, "devpts /dev/pts devpts opts 0 0")
- f.Close()
- PROC_MOUNTS = f.Name()
-
- // Check that FindKeepVolumes returns an empty array.
- resultVols := FindKeepVolumes()
- if len(resultVols) != 0 {
- t.Fatalf("FindKeepVolumes returned %v", resultVols)
- }
-
- os.Remove(PROC_MOUNTS)
+ // Set up a bogus ProcMounts file with no Keep vols.
+ f, err := ioutil.TempFile("", "keeptest")
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer os.Remove(f.Name())
+ fmt.Fprintln(f, "rootfs / rootfs opts 0 0")
+ fmt.Fprintln(f, "sysfs /sys sysfs opts 0 0")
+ fmt.Fprintln(f, "proc /proc proc opts 0 0")
+ fmt.Fprintln(f, "udev /dev devtmpfs opts 0 0")
+ fmt.Fprintln(f, "devpts /dev/pts devpts opts 0 0")
+ f.Close()
+ ProcMounts = f.Name()
+
+ var resultVols volumeSet
+ added := resultVols.Discover()
+ if added != 0 || len(resultVols) != 0 {
+ t.Fatalf("got %d, %v; expected 0, []", added, resultVols)
}
}
// Include multiple blocks on different volumes, and
// some metadata files.
KeepVM = MakeTestVolumeManager(2)
- defer func() { KeepVM.Quit() }()
-
- vols := KeepVM.Volumes()
- vols[0].Put(TEST_HASH, TEST_BLOCK)
- vols[1].Put(TEST_HASH_2, TEST_BLOCK_2)
- vols[0].Put(TEST_HASH_3, TEST_BLOCK_3)
- vols[0].Put(TEST_HASH+".meta", []byte("metadata"))
- vols[1].Put(TEST_HASH_2+".meta", []byte("metadata"))
-
- index := vols[0].Index("") + vols[1].Index("")
- index_rows := strings.Split(index, "\n")
- sort.Strings(index_rows)
- sorted_index := strings.Join(index_rows, "\n")
- expected := `^\n` + TEST_HASH + `\+\d+ \d+\n` +
- TEST_HASH_3 + `\+\d+ \d+\n` +
- TEST_HASH_2 + `\+\d+ \d+$`
-
- match, err := regexp.MatchString(expected, sorted_index)
+ defer KeepVM.Close()
+
+ vols := KeepVM.AllReadable()
+ vols[0].Put(TestHash, TestBlock)
+ vols[1].Put(TestHash2, TestBlock2)
+ vols[0].Put(TestHash3, TestBlock3)
+ vols[0].Put(TestHash+".meta", []byte("metadata"))
+ vols[1].Put(TestHash2+".meta", []byte("metadata"))
+
+ buf := new(bytes.Buffer)
+ vols[0].IndexTo("", buf)
+ vols[1].IndexTo("", buf)
+ indexRows := strings.Split(string(buf.Bytes()), "\n")
+ sort.Strings(indexRows)
+ sortedIndex := strings.Join(indexRows, "\n")
+ expected := `^\n` + TestHash + `\+\d+ \d+\n` +
+ TestHash3 + `\+\d+ \d+\n` +
+ TestHash2 + `\+\d+ \d+$`
+
+ match, err := regexp.MatchString(expected, sortedIndex)
if err == nil {
if !match {
- t.Errorf("IndexLocators returned:\n%s", index)
+ t.Errorf("IndexLocators returned:\n%s", string(buf.Bytes()))
}
} else {
t.Errorf("regexp.MatchString: %s", err)
}
}
-// TestNodeStatus
-// Test that GetNodeStatus returns valid info about available volumes.
-//
-// TODO(twp): set up appropriate interfaces to permit more rigorous
-// testing.
-//
-func TestNodeStatus(t *testing.T) {
- defer teardown()
-
- // Set up test Keep volumes with some blocks.
- KeepVM = MakeTestVolumeManager(2)
- defer func() { KeepVM.Quit() }()
-
- vols := KeepVM.Volumes()
- vols[0].Put(TEST_HASH, TEST_BLOCK)
- vols[1].Put(TEST_HASH_2, TEST_BLOCK_2)
-
- // Get node status and make a basic sanity check.
- st := GetNodeStatus()
- for i := range vols {
- volinfo := st.Volumes[i]
- mtp := volinfo.MountPoint
- if mtp != "/bogo" {
- t.Errorf("GetNodeStatus mount_point %s, expected /bogo", mtp)
- }
- if volinfo.DeviceNum == 0 {
- t.Errorf("uninitialized device_num in %v", volinfo)
- }
- if volinfo.BytesFree == 0 {
- t.Errorf("uninitialized bytes_free in %v", volinfo)
- }
- if volinfo.BytesUsed == 0 {
- t.Errorf("uninitialized bytes_used in %v", volinfo)
- }
- }
-}
-
// ========================================
// Helper functions for unit tests.
// ========================================
-// MakeTestVolumeManager
-// Creates and returns a RRVolumeManager with the specified number
-// of MockVolumes.
-//
-func MakeTestVolumeManager(num_volumes int) VolumeManager {
- vols := make([]Volume, num_volumes)
+// MakeTestVolumeManager returns a RRVolumeManager with the specified
+// number of MockVolumes.
+func MakeTestVolumeManager(numVolumes int) VolumeManager {
+ vols := make([]Volume, numVolumes)
for i := range vols {
vols[i] = CreateMockVolume()
}
return MakeRRVolumeManager(vols)
}
-// teardown
-// Cleanup to perform after each test.
-//
+// teardown cleans up after each test.
func teardown() {
data_manager_token = ""
- enforce_permissions = false
+ enforcePermissions = false
PermissionSecret = nil
KeepVM = nil
}
projects / arvados.git / blobdiff