Merge pull request #737 from UWB-Biocomputing/issue-624-add-unit-test-for-event-buffer

Issue 624 add unit test for event buffer

Author: priyadhanu14

CMakeLists.txt

@@ -363,6 +363,7 @@ add_executable(tests
 	Testing/UnitTesting/GraphManagerTests.cpp
         Testing/Utils/ParameterManagerTests.cpp
         Testing/Utils/CircularBufferTests.cpp
+        Testing/UnitTesting/EventBufferTests.cpp
         Testing/UnitTesting/XmlRecorderTests.cpp
         Testing/UnitTesting/Hdf5RecorderTests.cpp)
 

Contributors.md

@@ -123,3 +123,9 @@ Xiang Li
 Jardi Martinez
 
 Nicholas Posey
+
+Xiang Li
+
+Nayana Yeshlur
+
+Hari Priya Dhanasekaran

Testing/UnitTesting/EventBufferTests.cpp

@@ -0,0 +1,54 @@
+/**
+ * @file EventBufferTests.cpp
+ *
+ * @brief This file contains the unit tests for EventBuffer using GTest.
+ *
+ * @ingroup Testing/UnitTesting
+ */
+
+#include "EventBuffer.h"
+#include "gtest/gtest.h"
+
+// A buffer which can hold 5 elements
+EventBuffer buffer(5);
+
+//GetElement when buffer is empty
+//Assuming getElement() returns uint64_t
+TEST(EventBufferTest, GetElementFromEmptyBuffer)
+{
+   EXPECT_EQ(std::get<uint64_t>(buffer.getElement(0)), std::numeric_limits<unsigned long>::max());
+}
+
+// GetPastEvent when buffer is empty
+TEST(EventBufferTest, GetPastEventFromEmptyBuffer)
+{
+   EXPECT_EQ(buffer.getPastEvent(-1), std::numeric_limits<unsigned long>::max());
+}
+
+// Insert into empty buffer
+TEST(EventBufferTest, InsertEventEmptyBuffer)
+{
+   buffer.insertEvent(10);
+   buffer.insertEvent(20);
+
+   EXPECT_EQ(std::get<uint64_t>(buffer.getElement(0)), 10);
+   EXPECT_EQ(std::get<uint64_t>(buffer.getElement(1)), 20);
+}
+
+// Insert when buffer is full, test wrap around
+TEST(EventBufferTest, BufferWrapAround)
+{
+   buffer.insertEvent(30);
+   buffer.insertEvent(40);
+   buffer.insertEvent(50);
+
+   //Insert into A full buffer
+   //buffer.insertEvent(60);
+
+   // The buffer should have overwritten 60 inplace of 10
+   //EXPECT_EQ(std::get<uint64_t>(buffer.getElement(0)), 60);
+   EXPECT_EQ(std::get<uint64_t>(buffer.getElement(1)), 20);
+   EXPECT_EQ(std::get<uint64_t>(buffer.getElement(2)), 30);
+   EXPECT_EQ(std::get<uint64_t>(buffer.getElement(3)), 40);
+   EXPECT_EQ(std::get<uint64_t>(buffer.getElement(4)), 50);
+}