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Telegram/ThirdParty/GSL/tests/assertion_tests.cpp

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+///////////////////////////////////////////////////////////////////////////////
+//
+// Copyright (c) 2015 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 "deathTestCommon.h"
+#include <gsl/assert> // for Ensures, Expects
+#include <gtest/gtest.h>
+
+using namespace gsl;
+
+namespace
+{
+
+int f(int i)
+{
+    Expects(i > 0 && i < 10);
+    return i;
+}
+
+int g(int i)
+{
+    i++;
+    Ensures(i > 0 && i < 10);
+    return i;
+}
+} // namespace
+
+TEST(assertion_tests, expects)
+{
+    const auto terminateHandler = std::set_terminate([] {
+        std::cerr << "Expected Death. expects";
+        std::abort();
+    });
+
+    EXPECT_TRUE(f(2) == 2);
+    EXPECT_DEATH(f(10), GetExpectedDeathString(terminateHandler));
+}
+
+TEST(assertion_tests, ensures)
+{
+    const auto terminateHandler = std::set_terminate([] {
+        std::cerr << "Expected Death. ensures";
+        std::abort();
+    });
+
+    EXPECT_TRUE(g(2) == 3);
+    EXPECT_DEATH(g(9), GetExpectedDeathString(terminateHandler));
+}