[VOL-2193] Create mocks for Kafka Client and Etcd
This commit consists of:
1) A kafka client mock that implements the kafka client interface
under voltha-lib-go/pkg/kafka/client.go
2) An embedded Etcd server that runs in-process and represents an
Etcd server.
Change-Id: I52a36132568e08c596bb4136918bebcb654a3b99
diff --git a/vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/.gitignore b/vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/.gitignore
new file mode 100644
index 0000000..e16fb94
--- /dev/null
+++ b/vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/.gitignore
@@ -0,0 +1 @@
+cover.dat
diff --git a/vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/Makefile b/vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/Makefile
new file mode 100644
index 0000000..81be214
--- /dev/null
+++ b/vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/Makefile
@@ -0,0 +1,7 @@
+all:
+
+cover:
+ go test -cover -v -coverprofile=cover.dat ./...
+ go tool cover -func cover.dat
+
+.PHONY: cover
diff --git a/vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/decode.go b/vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/decode.go
new file mode 100644
index 0000000..258c063
--- /dev/null
+++ b/vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/decode.go
@@ -0,0 +1,75 @@
+// Copyright 2013 Matt T. Proud
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package pbutil
+
+import (
+ "encoding/binary"
+ "errors"
+ "io"
+
+ "github.com/golang/protobuf/proto"
+)
+
+var errInvalidVarint = errors.New("invalid varint32 encountered")
+
+// ReadDelimited decodes a message from the provided length-delimited stream,
+// where the length is encoded as 32-bit varint prefix to the message body.
+// It returns the total number of bytes read and any applicable error. This is
+// roughly equivalent to the companion Java API's
+// MessageLite#parseDelimitedFrom. As per the reader contract, this function
+// calls r.Read repeatedly as required until exactly one message including its
+// prefix is read and decoded (or an error has occurred). The function never
+// reads more bytes from the stream than required. The function never returns
+// an error if a message has been read and decoded correctly, even if the end
+// of the stream has been reached in doing so. In that case, any subsequent
+// calls return (0, io.EOF).
+func ReadDelimited(r io.Reader, m proto.Message) (n int, err error) {
+ // Per AbstractParser#parsePartialDelimitedFrom with
+ // CodedInputStream#readRawVarint32.
+ var headerBuf [binary.MaxVarintLen32]byte
+ var bytesRead, varIntBytes int
+ var messageLength uint64
+ for varIntBytes == 0 { // i.e. no varint has been decoded yet.
+ if bytesRead >= len(headerBuf) {
+ return bytesRead, errInvalidVarint
+ }
+ // We have to read byte by byte here to avoid reading more bytes
+ // than required. Each read byte is appended to what we have
+ // read before.
+ newBytesRead, err := r.Read(headerBuf[bytesRead : bytesRead+1])
+ if newBytesRead == 0 {
+ if err != nil {
+ return bytesRead, err
+ }
+ // A Reader should not return (0, nil), but if it does,
+ // it should be treated as no-op (according to the
+ // Reader contract). So let's go on...
+ continue
+ }
+ bytesRead += newBytesRead
+ // Now present everything read so far to the varint decoder and
+ // see if a varint can be decoded already.
+ messageLength, varIntBytes = proto.DecodeVarint(headerBuf[:bytesRead])
+ }
+
+ messageBuf := make([]byte, messageLength)
+ newBytesRead, err := io.ReadFull(r, messageBuf)
+ bytesRead += newBytesRead
+ if err != nil {
+ return bytesRead, err
+ }
+
+ return bytesRead, proto.Unmarshal(messageBuf, m)
+}
diff --git a/vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/doc.go b/vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/doc.go
new file mode 100644
index 0000000..c318385
--- /dev/null
+++ b/vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/doc.go
@@ -0,0 +1,16 @@
+// Copyright 2013 Matt T. Proud
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package pbutil provides record length-delimited Protocol Buffer streaming.
+package pbutil
diff --git a/vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/encode.go b/vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/encode.go
new file mode 100644
index 0000000..8fb59ad
--- /dev/null
+++ b/vendor/github.com/matttproud/golang_protobuf_extensions/pbutil/encode.go
@@ -0,0 +1,46 @@
+// Copyright 2013 Matt T. Proud
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package pbutil
+
+import (
+ "encoding/binary"
+ "io"
+
+ "github.com/golang/protobuf/proto"
+)
+
+// WriteDelimited encodes and dumps a message to the provided writer prefixed
+// with a 32-bit varint indicating the length of the encoded message, producing
+// a length-delimited record stream, which can be used to chain together
+// encoded messages of the same type together in a file. It returns the total
+// number of bytes written and any applicable error. This is roughly
+// equivalent to the companion Java API's MessageLite#writeDelimitedTo.
+func WriteDelimited(w io.Writer, m proto.Message) (n int, err error) {
+ buffer, err := proto.Marshal(m)
+ if err != nil {
+ return 0, err
+ }
+
+ var buf [binary.MaxVarintLen32]byte
+ encodedLength := binary.PutUvarint(buf[:], uint64(len(buffer)))
+
+ sync, err := w.Write(buf[:encodedLength])
+ if err != nil {
+ return sync, err
+ }
+
+ n, err = w.Write(buffer)
+ return n + sync, err
+}