144 lines
4.0 KiB
Go
144 lines
4.0 KiB
Go
/*
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*
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* Copyright 2014, Google Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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package grpc
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import (
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"bytes"
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"sync"
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"testing"
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"google.golang.org/grpc/test/codec_perf"
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)
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func marshalAndUnmarshal(t *testing.T, protoCodec Codec, expectedBody []byte) {
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p := &codec_perf.Buffer{}
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p.Body = expectedBody
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marshalledBytes, err := protoCodec.Marshal(p)
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if err != nil {
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t.Errorf("protoCodec.Marshal(_) returned an error")
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}
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if err := protoCodec.Unmarshal(marshalledBytes, p); err != nil {
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t.Errorf("protoCodec.Unmarshal(_) returned an error")
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}
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if bytes.Compare(p.GetBody(), expectedBody) != 0 {
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t.Errorf("Unexpected body; got %v; want %v", p.GetBody(), expectedBody)
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}
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}
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func TestBasicProtoCodecMarshalAndUnmarshal(t *testing.T) {
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marshalAndUnmarshal(t, protoCodec{}, []byte{1, 2, 3})
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}
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// Try to catch possible race conditions around use of pools
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func TestConcurrentUsage(t *testing.T) {
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const (
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numGoRoutines = 100
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numMarshUnmarsh = 1000
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)
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// small, arbitrary byte slices
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protoBodies := [][]byte{
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[]byte("one"),
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[]byte("two"),
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[]byte("three"),
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[]byte("four"),
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[]byte("five"),
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}
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var wg sync.WaitGroup
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codec := protoCodec{}
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for i := 0; i < numGoRoutines; i++ {
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wg.Add(1)
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go func() {
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defer wg.Done()
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for k := 0; k < numMarshUnmarsh; k++ {
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marshalAndUnmarshal(t, codec, protoBodies[k%len(protoBodies)])
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}
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}()
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}
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wg.Wait()
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}
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// TestStaggeredMarshalAndUnmarshalUsingSamePool tries to catch potential errors in which slices get
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// stomped on during reuse of a proto.Buffer.
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func TestStaggeredMarshalAndUnmarshalUsingSamePool(t *testing.T) {
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codec1 := protoCodec{}
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codec2 := protoCodec{}
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expectedBody1 := []byte{1, 2, 3}
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expectedBody2 := []byte{4, 5, 6}
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proto1 := codec_perf.Buffer{Body: expectedBody1}
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proto2 := codec_perf.Buffer{Body: expectedBody2}
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var m1, m2 []byte
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var err error
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if m1, err = codec1.Marshal(&proto1); err != nil {
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t.Errorf("protoCodec.Marshal(%v) failed", proto1)
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}
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if m2, err = codec2.Marshal(&proto2); err != nil {
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t.Errorf("protoCodec.Marshal(%v) failed", proto2)
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}
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if err = codec1.Unmarshal(m1, &proto1); err != nil {
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t.Errorf("protoCodec.Unmarshal(%v) failed", m1)
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}
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if err = codec2.Unmarshal(m2, &proto2); err != nil {
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t.Errorf("protoCodec.Unmarshal(%v) failed", m2)
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}
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b1 := proto1.GetBody()
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b2 := proto2.GetBody()
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for i, v := range b1 {
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if expectedBody1[i] != v {
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t.Errorf("expected %v at index %v but got %v", i, expectedBody1[i], v)
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}
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}
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for i, v := range b2 {
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if expectedBody2[i] != v {
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t.Errorf("expected %v at index %v but got %v", i, expectedBody2[i], v)
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}
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}
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}
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