version 1.22.0

source tree changed
detached PIConsole and PIScreen* in "pip_console" library

lib/concurrent/test/ConditionVariableIntegrationTest.cpp

@@ -0,0 +1,200 @@
+#include "gtest/gtest.h"
+#include "piconditionvar.h"
+#include "pithread.h"
+#include "testutil.h"
+
+class ConditionVariable : public ::testing::Test, public TestUtil {
+public:
+    PIConditionLock m;
+    PIConditionVariable* variable;
+
+protected:
+    void SetUp() override {
+        variable = new PIConditionVariable();
+        adapterFunctionDefault = [&](){
+            m.lock();
+            variable->wait(m);
+            m.unlock();
+        };
+    }
+};
+
+TEST_F(ConditionVariable, wait_is_block) {
+    createThread();
+    ASSERT_FALSE(thread->waitForFinish(WAIT_THREAD_TIME_MS));
+}
+
+TEST_F(ConditionVariable, wait_is_block_when_notifyOne_before_wait) {
+    variable->notifyOne();
+    createThread();
+    ASSERT_FALSE(thread->waitForFinish(WAIT_THREAD_TIME_MS));
+}
+
+TEST_F(ConditionVariable, wait_is_block_when_notifyAll_before_wait) {
+    variable->notifyAll();
+    createThread();
+    ASSERT_FALSE(thread->waitForFinish(WAIT_THREAD_TIME_MS));
+}
+
+TEST_F(ConditionVariable, wait_is_unblock_when_notifyOne_after_wait) {
+    createThread();
+    variable->notifyOne();
+    ASSERT_TRUE(thread->waitForFinish(WAIT_THREAD_TIME_MS));
+}
+
+TEST_F(ConditionVariable, wait_is_unblock_when_notifyAll_after_wait) {
+    PIVector<PIThread*> threads;
+
+    for (int i = 0; i < THREAD_COUNT; ++i) {
+        threads.push_back(new PIThread([=](){ adapterFunctionDefault(); }));
+    }
+
+    piForeach(PIThread* thread, threads) thread->startOnce();
+    piMSleep(WAIT_THREAD_TIME_MS * THREAD_COUNT);
+    variable->notifyAll();
+    PITimeMeasurer measurer;
+    piForeach(PIThread* thread, threads) {
+        int timeout = WAIT_THREAD_TIME_MS * THREAD_COUNT - (int)measurer.elapsed_m();
+        thread->waitForFinish(timeout > 0 ? timeout : 0);
+    }
+    for (size_t i = 0; i < threads.size(); ++i) EXPECT_FALSE(threads[i]->isRunning()) << "Thread " << i << " still running";
+    piForeach(PIThread* thread, threads) delete thread;
+}
+
+TEST_F(ConditionVariable, wait_is_one_unblock_when_notifyOne) {
+    PIVector<PIThread*> threads;
+
+    for (int i = 0; i < THREAD_COUNT; ++i) {
+        threads.push_back(new PIThread(adapterFunctionDefault));
+    }
+
+    piForeach(PIThread* thread, threads) thread->startOnce();
+    piMSleep(WAIT_THREAD_TIME_MS * THREAD_COUNT);
+    variable->notifyOne();
+    piMSleep(WAIT_THREAD_TIME_MS * THREAD_COUNT);
+    int runningThreadCount = 0;
+    piForeach(PIThread* thread, threads) if (thread->isRunning()) runningThreadCount++;
+    ASSERT_EQ(runningThreadCount, THREAD_COUNT - 1);
+}
+
+TEST_F(ConditionVariable, wait_is_protected_unblock_when_notifyOne) {
+    createThread([&](){
+        m.lock();
+        variable->wait(m);
+        piMSleep(2 * WAIT_THREAD_TIME_MS);
+        // Missing unlock
+    });
+    variable->notifyOne();
+    msleep(WAIT_THREAD_TIME_MS);
+    ASSERT_FALSE(m.tryLock());
+}
+
+TEST_F(ConditionVariable, wait_condition_is_block) {
+    createThread([&](){
+        m.lock();
+        variable->wait(m, [](){ return false; });
+        m.unlock();
+    });
+    ASSERT_FALSE(thread->waitForFinish(WAIT_THREAD_TIME_MS));
+}
+
+TEST_F(ConditionVariable, wait_condition_is_check_condition_before_block) {
+    bool isConditionChecked = false;
+    createThread([&](){
+        m.lock();
+        variable->wait(m, [&](){
+            isConditionChecked = true;
+            return false;
+        });
+        m.unlock();
+    });
+    m.lock();
+    ASSERT_TRUE(isConditionChecked);
+    m.unlock();
+}
+
+TEST_F(ConditionVariable, wait_condition_is_check_condition_when_notifyOne) {
+    bool isConditionChecked;
+    createThread([&](){
+        m.lock();
+        variable->wait(m, [&](){
+            isConditionChecked = true;
+            return false;
+        });
+        m.unlock();
+    });
+    m.lock();
+    isConditionChecked = false;
+    m.unlock();
+    variable->notifyOne();
+    msleep(threadStartTime + 1);
+    m.lock();
+    ASSERT_TRUE(isConditionChecked);
+    m.unlock();
+}
+
+TEST_F(ConditionVariable, wait_condition_is_unblock_when_condition_and_notifyOne) {
+    bool condition = false;
+    createThread([&](){
+        m.lock();
+        variable->wait(m, [&](){ return condition; });
+        m.unlock();
+    });
+    m.lock();
+    condition = true;
+    m.unlock();
+    variable->notifyOne();
+    ASSERT_TRUE(thread->waitForFinish(WAIT_THREAD_TIME_MS));
+}
+
+TEST_F(ConditionVariable, DISABLED_waitFor_is_block_before_timeout) {
+    createThread([&](){
+        PITimeMeasurer measurer;
+        m.lock();
+        variable->waitFor(m, WAIT_THREAD_TIME_MS * 2);
+        m.unlock();
+        // Not reliable because spurious wakeup may happen
+        ASSERT_GE(measurer.elapsed_m(), WAIT_THREAD_TIME_MS);
+    });
+    EXPECT_TRUE(thread->waitForFinish(WAIT_THREAD_TIME_MS * 3));
+}
+
+TEST_F(ConditionVariable, waitFor_is_unblock_when_timeout) {
+    volatile bool isUnblock = false;
+    createThread([&](){
+        m.lock();
+        variable->waitFor(m, WAIT_THREAD_TIME_MS);
+        isUnblock = true;
+        m.unlock();
+    });
+    // Test failed if suspend forever
+    EXPECT_TRUE(thread->waitForFinish(2 * WAIT_THREAD_TIME_MS));
+    ASSERT_TRUE(isUnblock);
+}
+
+TEST_F(ConditionVariable, waitFor_is_false_when_timeout) {
+    bool waitRet = true;
+    createThread([&](){
+        m.lock();
+        waitRet = variable->waitFor(m, WAIT_THREAD_TIME_MS);
+        m.unlock();
+    });
+    EXPECT_TRUE(thread->waitForFinish(2 * WAIT_THREAD_TIME_MS));
+    ASSERT_FALSE(waitRet);
+}
+
+TEST_F(ConditionVariable, waitFor_is_unblock_when_condition_and_notifyOne) {
+    bool condition = false;
+    createThread([&](){
+        m.lock();
+        variable->waitFor(m, 3 * WAIT_THREAD_TIME_MS, [&](){ return condition; });
+        m.unlock();
+    });
+    EXPECT_TRUE(thread->isRunning());
+    m.lock();
+    condition = true;
+    m.unlock();
+    variable->notifyOne();
+    msleep(WAIT_THREAD_TIME_MS);
+    ASSERT_FALSE(thread->isRunning());
+}