"fmt"
"io/ioutil"
"os"
+ "syscall"
"testing"
"time"
)
-func TempUnixVolume(t *testing.T, serialize bool) UnixVolume {
+func TempUnixVolume(t *testing.T, serialize bool, readonly bool) *UnixVolume {
d, err := ioutil.TempDir("", "volume_test")
if err != nil {
t.Fatal(err)
}
- return MakeUnixVolume(d, serialize)
+ return &UnixVolume{
+ root: d,
+ serialize: serialize,
+ readonly: readonly,
+ }
}
-func _teardown(v UnixVolume) {
- if v.queue != nil {
- close(v.queue)
- }
+func _teardown(v *UnixVolume) {
os.RemoveAll(v.root)
}
-// store writes a Keep block directly into a UnixVolume, for testing
-// UnixVolume methods.
-//
-func _store(t *testing.T, vol UnixVolume, filename string, block []byte) {
+// _store writes a Keep block directly into a UnixVolume, bypassing
+// the overhead and safeguards of Put(). Useful for storing bogus data
+// and isolating unit tests from Put() behavior.
+func _store(t *testing.T, vol *UnixVolume, filename string, block []byte) {
blockdir := fmt.Sprintf("%s/%s", vol.root, filename[:3])
if err := os.MkdirAll(blockdir, 0755); err != nil {
t.Fatal(err)
}
func TestGet(t *testing.T) {
- v := TempUnixVolume(t, false)
+ v := TempUnixVolume(t, false, false)
defer _teardown(v)
_store(t, v, TEST_HASH, TEST_BLOCK)
}
func TestGetNotFound(t *testing.T) {
- v := TempUnixVolume(t, false)
+ v := TempUnixVolume(t, false, false)
defer _teardown(v)
_store(t, v, TEST_HASH, TEST_BLOCK)
}
func TestPut(t *testing.T) {
- v := TempUnixVolume(t, false)
+ v := TempUnixVolume(t, false, false)
defer _teardown(v)
err := v.Put(TEST_HASH, TEST_BLOCK)
}
func TestPutBadVolume(t *testing.T) {
- v := TempUnixVolume(t, false)
+ v := TempUnixVolume(t, false, false)
defer _teardown(v)
os.Chmod(v.root, 000)
}
}
+func TestUnixVolumeReadonly(t *testing.T) {
+ v := TempUnixVolume(t, false, false)
+ defer _teardown(v)
+
+ // First write something before marking readonly
+ err := v.Put(TEST_HASH, TEST_BLOCK)
+ if err != nil {
+ t.Error("got err %v, expected nil", err)
+ }
+
+ v.readonly = true
+
+ _, err = v.Get(TEST_HASH)
+ if err != nil {
+ t.Error("got err %v, expected nil", err)
+ }
+
+ err = v.Put(TEST_HASH, TEST_BLOCK)
+ if err != MethodDisabledError {
+ t.Error("got err %v, expected MethodDisabledError", err)
+ }
+
+ err = v.Touch(TEST_HASH)
+ if err != MethodDisabledError {
+ t.Error("got err %v, expected MethodDisabledError", err)
+ }
+
+ err = v.Delete(TEST_HASH)
+ if err != MethodDisabledError {
+ t.Error("got err %v, expected MethodDisabledError", err)
+ }
+}
+
+// TestPutTouch
+// Test that when applying PUT to a block that already exists,
+// the block's modification time is updated.
+func TestPutTouch(t *testing.T) {
+ v := TempUnixVolume(t, false, false)
+ defer _teardown(v)
+
+ if err := v.Put(TEST_HASH, TEST_BLOCK); err != nil {
+ t.Error(err)
+ }
+
+ // We'll verify { t0 < threshold < t1 }, where t0 is the
+ // existing block's timestamp on disk before Put() and t1 is
+ // its timestamp after Put().
+ threshold := time.Now().Add(-time.Second)
+
+ // Set the stored block's mtime far enough in the past that we
+ // can see the difference between "timestamp didn't change"
+ // and "timestamp granularity is too low".
+ {
+ oldtime := time.Now().Add(-20 * time.Second).Unix()
+ if err := syscall.Utime(v.blockPath(TEST_HASH),
+ &syscall.Utimbuf{oldtime, oldtime}); err != nil {
+ t.Error(err)
+ }
+
+ // Make sure v.Mtime() agrees the above Utime really worked.
+ if t0, err := v.Mtime(TEST_HASH); err != nil || t0.IsZero() || !t0.Before(threshold) {
+ t.Errorf("Setting mtime failed: %v, %v", t0, err)
+ }
+ }
+
+ // Write the same block again.
+ if err := v.Put(TEST_HASH, TEST_BLOCK); err != nil {
+ t.Error(err)
+ }
+
+ // Verify threshold < t1
+ t1, err := v.Mtime(TEST_HASH)
+ if err != nil {
+ t.Error(err)
+ }
+ if t1.Before(threshold) {
+ t.Errorf("t1 %v must be >= threshold %v after v.Put ",
+ t1, threshold)
+ }
+}
+
// Serialization tests: launch a bunch of concurrent
//
// TODO(twp): show that the underlying Read/Write operations executed
//
func TestGetSerialized(t *testing.T) {
// Create a volume with I/O serialization enabled.
- v := TempUnixVolume(t, true)
+ v := TempUnixVolume(t, true, false)
defer _teardown(v)
_store(t, v, TEST_HASH, TEST_BLOCK)
func TestPutSerialized(t *testing.T) {
// Create a volume with I/O serialization enabled.
- v := TempUnixVolume(t, true)
+ v := TempUnixVolume(t, true, false)
defer _teardown(v)
sem := make(chan int)
}
func TestIsFull(t *testing.T) {
- v := TempUnixVolume(t, false)
+ v := TempUnixVolume(t, false, false)
defer _teardown(v)
full_path := v.root + "/full"
t.Errorf("%s: should no longer be full", v)
}
}
+
+func TestNodeStatus(t *testing.T) {
+ v := TempUnixVolume(t, false, false)
+ defer _teardown(v)
+
+ // Get node status and make a basic sanity check.
+ volinfo := v.Status()
+ if volinfo.MountPoint != v.root {
+ t.Errorf("GetNodeStatus mount_point %s, expected %s", volinfo.MountPoint, v.root)
+ }
+ 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)
+ }
+}
projects / arvados.git / blobdiff