intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 92 insertions, 0 deletions

diff --git a/library/cpp/threading/queue/basic_ut.cpp b/library/cpp/threading/queue/basic_ut.cpp
new file mode 100644
index 0000000000..5f56f8583e
--- /dev/null
+++ b/library/cpp/threading/queue/basic_ut.cpp
@@ -0,0 +1,92 @@
+#include <library/cpp/testing/unittest/registar.h>
+#include <util/generic/vector.h>
+#include <util/system/thread.h>
+
+#include "ut_helpers.h"
+
+template <typename TQueueType>
+class TQueueTestsInSingleThread: public TTestBase {
+private:
+    using TSelf = TQueueTestsInSingleThread<TQueueType>;
+    using TLink = TIntrusiveLink;
+
+    UNIT_TEST_SUITE_DEMANGLE(TSelf);
+    UNIT_TEST(OnePushOnePop)
+    UNIT_TEST(OnePushOnePop_Repeat1M)
+    UNIT_TEST(Threads8_Repeat1M_Push1Pop1)
+    UNIT_TEST_SUITE_END();
+
+public:
+    void OnePushOnePop() {
+        TQueueType queue;
+
+        auto popped = queue.Pop();
+        UNIT_ASSERT_VALUES_EQUAL(popped, nullptr);
+
+        TLink msg;
+        queue.Push(&msg);
+        popped = queue.Pop();
+        UNIT_ASSERT_VALUES_EQUAL(&msg, popped);
+
+        popped = queue.Pop();
+        UNIT_ASSERT_VALUES_EQUAL(popped, nullptr);
+    };
+
+    void OnePushOnePop_Repeat1M() {
+        TQueueType queue;
+        TLink msg;
+
+        auto popped = queue.Pop();
+        UNIT_ASSERT_VALUES_EQUAL(popped, nullptr);
+
+        for (int i = 0; i < 1000000; ++i) {
+            queue.Push(&msg);
+            popped = queue.Pop();
+            UNIT_ASSERT_VALUES_EQUAL(&msg, popped);
+
+            popped = queue.Pop();
+            UNIT_ASSERT_VALUES_EQUAL(popped, nullptr);
+        }
+    }
+
+    template <size_t NUMBER_OF_THREADS>
+    void RepeatPush1Pop1_InManyThreads() {
+        class TCycleThread: public ISimpleThread {
+        public:
+            void* ThreadProc() override {
+                TQueueType queue;
+                TLink msg;
+                auto popped = queue.Pop();
+                UNIT_ASSERT_VALUES_EQUAL(popped, nullptr);
+
+                for (size_t i = 0; i < 1000000; ++i) {
+                    queue.Push(&msg);
+                    popped = queue.Pop();
+                    UNIT_ASSERT_VALUES_EQUAL(popped, &msg);
+
+                    popped = queue.Pop();
+                    UNIT_ASSERT_VALUES_EQUAL(popped, nullptr);
+                }
+                return nullptr;
+            }
+        };
+
+        TVector<TAutoPtr<TCycleThread>> cyclers;
+
+        for (size_t i = 0; i < NUMBER_OF_THREADS; ++i) {
+            cyclers.emplace_back(new TCycleThread);
+            cyclers.back()->Start();
+        }
+
+        for (size_t i = 0; i < NUMBER_OF_THREADS; ++i) {
+            cyclers[i]->Join();
+        }
+    }
+
+    void Threads8_Repeat1M_Push1Pop1() {
+        RepeatPush1Pop1_InManyThreads<8>();
+    }
+};
+
+REGISTER_TESTS_FOR_ALL_ORDERED_QUEUES(TQueueTestsInSingleThread);
+REGISTER_TESTS_FOR_ALL_UNORDERED_QUEUES(TQueueTestsInSingleThread)