101 lines
2.6 KiB
C++
101 lines
2.6 KiB
C++
// Copyright 2014 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "emugl/common/message_channel.h"
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#include "emugl/common/testing/test_thread.h"
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#include <gtest/gtest.h>
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#include <string>
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namespace emugl {
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namespace {
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struct PingPongState {
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MessageChannel<std::string, 3U> in;
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MessageChannel<std::string, 3U> out;
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};
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void* pingPongFunction(void* param) {
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for (;;) {
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PingPongState* s = static_cast<PingPongState*>(param);
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std::string str;
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s->in.receive(&str);
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s->out.send(str);
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if (str == "quit") {
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break;
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}
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}
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return 0;
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}
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} // namespace
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TEST(MessageChannel, SingleThreadWithInt) {
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MessageChannel<int, 3U> channel;
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channel.send(1);
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channel.send(2);
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channel.send(3);
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int ret;
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channel.receive(&ret);
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EXPECT_EQ(1, ret);
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channel.receive(&ret);
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EXPECT_EQ(2, ret);
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channel.receive(&ret);
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EXPECT_EQ(3, ret);
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}
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TEST(MessageChannel, SingleThreadWithStdString) {
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MessageChannel<std::string, 5U> channel;
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channel.send(std::string("foo"));
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channel.send(std::string("bar"));
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channel.send(std::string("zoo"));
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std::string str;
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channel.receive(&str);
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EXPECT_STREQ("foo", str.c_str());
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channel.receive(&str);
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EXPECT_STREQ("bar", str.c_str());
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channel.receive(&str);
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EXPECT_STREQ("zoo", str.c_str());
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}
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TEST(MessageChannel, TwoThreadsPingPong) {
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PingPongState state;
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TestThread* thread = new TestThread(pingPongFunction, &state);
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std::string str;
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const size_t kCount = 100;
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for (size_t n = 0; n < kCount; ++n) {
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state.in.send(std::string("foo"));
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state.in.send(std::string("bar"));
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state.in.send(std::string("zoo"));
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state.out.receive(&str);
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EXPECT_STREQ("foo", str.c_str());
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state.out.receive(&str);
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EXPECT_STREQ("bar", str.c_str());
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state.out.receive(&str);
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EXPECT_STREQ("zoo", str.c_str());
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}
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state.in.send(std::string("quit"));
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state.out.receive(&str);
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EXPECT_STREQ("quit", str.c_str());
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thread->join();
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}
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} // namespace emugl
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