func testAtomicDelete(t *testing.T, kv store.Store) {
key := "atomic"
value := []byte("world")
// Put the key
err := kv.Put(key, value, nil)
assert.NoError(t, err)
// Get should return the value and an incremented index
pair, err := kv.Get(key)
assert.NoError(t, err)
if assert.NotNil(t, pair) {
assert.NotNil(t, pair.Value)
}
assert.Equal(t, pair.Value, value)
assert.NotEqual(t, pair.LastIndex, 0)
tempIndex := pair.LastIndex
// AtomicDelete should fail
pair.LastIndex = 0
success, err := kv.AtomicDelete(key, pair)
assert.Error(t, err)
assert.False(t, success)
// AtomicDelete should succeed
pair.LastIndex = tempIndex
success, err = kv.AtomicDelete(key, pair)
assert.NoError(t, err)
assert.True(t, success)
}
func testAtomicPutCreate(t *testing.T, kv store.Store) {
// Use a key in a new directory to ensure Stores will create directories
// that don't yet exist.
key := "put/create"
value := []byte("putcreate")
// AtomicPut the key, previous = nil indicates create.
success, _, err := kv.AtomicPut(key, value, nil, nil)
assert.NoError(t, err)
assert.True(t, success)
// Get should return the value and an incremented index
pair, err := kv.Get(key)
assert.NoError(t, err)
if assert.NotNil(t, pair) {
assert.NotNil(t, pair.Value)
}
assert.Equal(t, pair.Value, value)
// Attempting to create again should fail.
success, _, err = kv.AtomicPut(key, value, nil, nil)
assert.Error(t, err)
assert.False(t, success)
// This CAS should succeed, since it has the value from Get()
success, _, err = kv.AtomicPut(key, []byte("PUTCREATE"), pair, nil)
assert.NoError(t, err)
assert.True(t, success)
// Delete the key, ensures runs of the test don't interfere with each other.
err = kv.DeleteTree("put")
assert.NoError(t, err)
}
func testAtomicPut(t *testing.T, kv store.Store) {
key := "hello"
value := []byte("world")
// Put the key
err := kv.Put(key, value, nil)
assert.NoError(t, err)
// Get should return the value and an incremented index
pair, err := kv.Get(key)
assert.NoError(t, err)
if assert.NotNil(t, pair) {
assert.NotNil(t, pair.Value)
}
assert.Equal(t, pair.Value, value)
assert.NotEqual(t, pair.LastIndex, 0)
// This CAS should fail: previous exists.
success, _, err := kv.AtomicPut("hello", []byte("WORLD"), nil, nil)
assert.Error(t, err)
assert.False(t, success)
// This CAS should succeed
success, _, err = kv.AtomicPut("hello", []byte("WORLD"), pair, nil)
assert.NoError(t, err)
assert.True(t, success)
// This CAS should fail, key exists.
pair.LastIndex = 0
success, _, err = kv.AtomicPut("hello", []byte("WORLDWORLD"), pair, nil)
assert.Error(t, err)
assert.False(t, success)
}
func testLockUnlock(t *testing.T, kv store.Store) {
key := "foo"
value := []byte("bar")
// We should be able to create a new lock on key
lock, err := kv.NewLock(key, &store.LockOptions{Value: value, TTL: 2 * time.Second})
assert.NoError(t, err)
assert.NotNil(t, lock)
// Lock should successfully succeed or block
lockChan, err := lock.Lock()
assert.NoError(t, err)
assert.NotNil(t, lockChan)
// Get should work
pair, err := kv.Get(key)
assert.NoError(t, err)
if assert.NotNil(t, pair) {
assert.NotNil(t, pair.Value)
}
assert.Equal(t, pair.Value, value)
assert.NotEqual(t, pair.LastIndex, 0)
// Unlock should succeed
err = lock.Unlock()
assert.NoError(t, err)
// Lock should succeed again
lockChan, err = lock.Lock()
assert.NoError(t, err)
assert.NotNil(t, lockChan)
// Get should work
pair, err = kv.Get(key)
assert.NoError(t, err)
if assert.NotNil(t, pair) {
assert.NotNil(t, pair.Value)
}
assert.Equal(t, pair.Value, value)
assert.NotEqual(t, pair.LastIndex, 0)
}
func testDeleteTree(t *testing.T, kv store.Store) {
prefix := "nodes"
firstKey := "nodes/first"
firstValue := []byte("first")
secondKey := "nodes/second"
secondValue := []byte("second")
// Put the first key
err := kv.Put(firstKey, firstValue, nil)
assert.NoError(t, err)
// Put the second key
err = kv.Put(secondKey, secondValue, nil)
assert.NoError(t, err)
// Get should work on the first Key
pair, err := kv.Get(firstKey)
assert.NoError(t, err)
if assert.NotNil(t, pair) {
assert.NotNil(t, pair.Value)
}
assert.Equal(t, pair.Value, firstValue)
assert.NotEqual(t, pair.LastIndex, 0)
// Get should work on the second Key
pair, err = kv.Get(secondKey)
assert.NoError(t, err)
if assert.NotNil(t, pair) {
assert.NotNil(t, pair.Value)
}
assert.Equal(t, pair.Value, secondValue)
assert.NotEqual(t, pair.LastIndex, 0)
// Delete Values under directory `nodes`
err = kv.DeleteTree(prefix)
assert.NoError(t, err)
// Get should fail on both keys
pair, err = kv.Get(firstKey)
assert.Error(t, err)
assert.Nil(t, pair)
pair, err = kv.Get(secondKey)
assert.Error(t, err)
assert.Nil(t, pair)
}
func testPutTTL(t *testing.T, kv store.Store, otherConn store.Store) {
firstKey := "first"
firstValue := []byte("foo")
secondKey := "second"
secondValue := []byte("bar")
// Put the first key with the Ephemeral flag
err := otherConn.Put(firstKey, firstValue, &store.WriteOptions{TTL: 2 * time.Second})
assert.NoError(t, err)
// Put a second key with the Ephemeral flag
err = otherConn.Put(secondKey, secondValue, &store.WriteOptions{TTL: 2 * time.Second})
assert.NoError(t, err)
// Get on firstKey should work
pair, err := kv.Get(firstKey)
assert.NoError(t, err)
assert.NotNil(t, pair)
// Get on secondKey should work
pair, err = kv.Get(secondKey)
assert.NoError(t, err)
assert.NotNil(t, pair)
// Close the connection
otherConn.Close()
// Let the session expire
time.Sleep(3 * time.Second)
// Get on firstKey shouldn't work
pair, err = kv.Get(firstKey)
assert.Error(t, err)
assert.Nil(t, pair)
// Get on secondKey shouldn't work
pair, err = kv.Get(secondKey)
assert.Error(t, err)
assert.Nil(t, pair)
}
func testPutGetDeleteExists(t *testing.T, kv store.Store) {
key := "testfoo"
value := []byte("bar")
// Put the key
err := kv.Put(key, value, nil)
assert.NoError(t, err)
// Get should return the value and an incremented index
pair, err := kv.Get(key)
assert.NoError(t, err)
if assert.NotNil(t, pair) {
assert.NotNil(t, pair.Value)
}
assert.Equal(t, pair.Value, value)
assert.NotEqual(t, pair.LastIndex, 0)
// Get a not exist key should return ErrKeyNotFound
pair, err = kv.Get("/testPutGetDelete_not_exist_key")
assert.Equal(t, store.ErrKeyNotFound, err)
// Exists should return true
exists, err := kv.Exists(key)
assert.NoError(t, err)
assert.True(t, exists)
// Delete the key
err = kv.Delete(key)
assert.NoError(t, err)
// Get should fail
pair, err = kv.Get(key)
assert.Error(t, err)
assert.Nil(t, pair)
// Exists should return false
exists, err = kv.Exists(key)
assert.NoError(t, err)
assert.False(t, exists)
}