Added test structure and Unity usage

.gitignore

@@ -32,3 +32,5 @@
 *.out
 *.app
 
+# CMake
+build

CMakeLists.txt

@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.10)
+
+project(
+    search-algorithms
+    LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD 11 CACHE STRING "The C++ standard to use")
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
+set(EXECUTABLE_OUTPUT_PATH ${PROJECT_BINARY_DIR}/bin)
+
+add_subdirectory(src)
+
+if("${CMAKE_BUILD_TYPE}" STREQUAL "Debug")
+    add_subdirectory(test)
+endif()

src/main.cpp

@@ -0,0 +1,6 @@
+#include <iostream>
+
+int main(void) {
+    std::cout << "Hello world" << std::endl;
+    return 0;
+}

test/CMakeLists.txt

@@ -0,0 +1,7 @@
+find_package(unity REQUIRED)
+include_directories(${CMAKE_SOURCE_DIR}/src)
+add_executable(testing 
+    test.cpp
+)
+set_target_properties(testing PROPERTIES LINKER_LANGUAGE CXX)
+target_link_libraries(testing unity)

test/test.cpp

@@ -0,0 +1,21 @@
+#include <unity/unity.h>
+#include <unity/unity_internals.h>
+
+void setUp() { ; }
+void tearDown() { ; }
+
+int Math(void) {
+    return 2+2;
+}
+
+void test_Math(void) {
+    TEST_ASSERT_EQUAL_INT(4, Math());
+}
+
+
+int main(void) {
+    UNITY_BEGIN();
+    RUN_TEST(test_Math);
+    return UNITY_END();
+}
+