1 files changed, 71 insertions, 0 deletions
diff --git a/tests/at_tests.cpp b/tests/at_tests.cpp
new file mode 100644
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--- /dev/null
+++ b/tests/at_tests.cpp
@@ -0,0 +1,71 @@
+/////////////////////////////////////////////////////////////////////////////// 
+// 
+// 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 <UnitTest++/UnitTest++.h> 
+#include <gsl/gsl>
+#include <vector>
+#include <initializer_list>
+
+using namespace std;
+using namespace gsl;
+
+SUITE(at_tests)
+{
+    TEST(static_array)
+    {
+        int a[] = { 1, 2, 3, 4 };
+
+        for (int i = 0; i < 4; ++i)
+            CHECK(at(a, i) == i+1);
+
+        CHECK_THROW(at(a, 4), fail_fast);
+    }
+
+    TEST(std_array)
+    {
+        std::array<int,4> a = { 1, 2, 3, 4 };
+
+        for (int i = 0; i < 4; ++i)
+            CHECK(at(a, i) == i+1);
+
+        CHECK_THROW(at(a, 4), fail_fast);
+    }
+
+    TEST(StdVector)
+    {
+        std::vector<int> a = { 1, 2, 3, 4 };
+
+        for (int i = 0; i < 4; ++i)
+            CHECK(at(a, i) == i+1);
+
+        CHECK_THROW(at(a, 4), fail_fast);
+    }
+
+    TEST(InitializerList)
+    {
+        std::initializer_list<int> a = { 1, 2, 3, 4 };
+
+        for (int i = 0; i < 4; ++i)
+            CHECK(at(a, i) == i+1);
+
+        CHECK_THROW(at(a, 4), fail_fast);
+    }
+}
+
+int main(int, const char *[])
+{
+    return UnitTest::RunAllTests();
+}