From 4d9bc1868dafb79f48a14c06111a9ea6dc51235b Mon Sep 17 00:00:00 2001
From: Galik <galik.bool@gmail.com>
Date: Tue, 9 May 2017 04:04:01 +0100
Subject: [PATCH] added thread_tests.cpp

---
 tests/CMakeLists.txt   |   7 +++
 tests/thread_tests.cpp | 140 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 147 insertions(+)
 create mode 100644 tests/thread_tests.cpp

diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index eb08360..d8ce5c2 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -42,6 +42,12 @@ target_compile_options(gsl_tests_config INTERFACE
     >
 )
 
+target_link_libraries(gsl_tests_config INTERFACE
+    $<$<NOT:$<CXX_COMPILER_ID:MSVC>>:
+        -pthread
+    >
+)
+
 # set test to include the unittest-cpp headers
 # this shiuld be removed when UnitTest++ has the proper headers
 target_include_directories(gsl_tests_config INTERFACE
@@ -80,3 +86,4 @@ add_gsl_test(utils_tests)
 add_gsl_test(owner_tests)
 add_gsl_test(byte_tests)
 add_gsl_test(algorithm_tests)
+add_gsl_test(thread_tests)
diff --git a/tests/thread_tests.cpp b/tests/thread_tests.cpp
new file mode 100644
index 0000000..4e9dc24
--- /dev/null
+++ b/tests/thread_tests.cpp
@@ -0,0 +1,140 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+// Copyright (c) 2017 Microsoft Corporation. All rights reserved.
+//
+// This code is licensed under the MIT License (MIT).
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include <UnitTest++/UnitTest++.h>
+
+#include <atomic>
+#include <chrono>
+#include <thread>
+
+#include <gsl/gsl_assert>
+#include <gsl/gsl_thread>
+
+using std::chrono::steady_clock;
+using std::this_thread::sleep_for;
+
+const auto t_100ms = std::chrono::milliseconds(100);
+
+SUITE(raii_thread_tests)
+{
+    TEST(raii_thread_same_scope_clock_test)
+    {
+        auto start_time = steady_clock::now();
+
+        gsl::raii_thread t{[&]{ sleep_for(t_100ms); }};
+
+        auto end_time = steady_clock::now();
+
+        CHECK(end_time - start_time < t_100ms);
+    }
+
+    TEST(raii_thread_different_scope_clock_test)
+    {
+        auto start_time = steady_clock::now();
+
+        {
+            gsl::raii_thread t{[&]{ sleep_for(t_100ms); }};
+        }
+
+        auto end_time = steady_clock::now();
+
+        CHECK(end_time - start_time >= t_100ms);
+    }
+
+    TEST(raii_thread_ctor_test)
+    {
+        auto start_time = steady_clock::now();
+
+        gsl::raii_thread t1{[&]{ sleep_for(t_100ms); }};
+
+        {
+            gsl::raii_thread t2{std::move(t1)};
+        }
+
+        auto end_time = steady_clock::now();
+
+        CHECK(end_time - start_time >= t_100ms);
+    }
+
+    TEST(raii_thread_assign_test)
+    {
+        auto start_time = steady_clock::now();
+
+        gsl::raii_thread t1{[&]{ sleep_for(t_100ms); }};
+
+        {
+            gsl::raii_thread t2;
+            t2 = std::move(t1);
+        }
+
+        auto end_time = steady_clock::now();
+
+        CHECK(end_time - start_time >= t_100ms);
+    }
+
+    TEST(raii_thread_std_thread_ctor_test)
+    {
+        auto start_time = steady_clock::now();
+
+        std::thread t1{[&]{ sleep_for(t_100ms); }};
+
+        {
+            gsl::raii_thread t2{std::move(t1)};
+        }
+
+        auto end_time = steady_clock::now();
+
+        CHECK(end_time - start_time >= t_100ms);
+    }
+
+    TEST(raii_thread_std_thread_assign_test)
+    {
+        auto start_time = steady_clock::now();
+
+        std::thread t1{[&]{ sleep_for(t_100ms); }};
+
+        {
+            gsl::raii_thread t2;
+            t2 = std::move(t1);
+        }
+
+        auto end_time = steady_clock::now();
+
+        CHECK(end_time - start_time >= t_100ms);
+    }
+
+    TEST(raii_thread_swap_test)
+    {
+        gsl::raii_thread t1{[&]{ sleep_for(t_100ms); }};
+        gsl::raii_thread t2{[&]{ sleep_for(t_100ms); }};
+
+        auto id1 = t1.get_id();
+        auto id2 = t2.get_id();
+
+        std::swap(t1, t2);
+
+        CHECK(t1.get_id() == id2);
+        CHECK(t2.get_id() == id1);
+
+        t1.swap(t2);
+
+        CHECK(t1.get_id() == id1);
+        CHECK(t2.get_id() == id2);
+    }
+}
+
+int main() { return UnitTest::RunAllTests(); }
+