Create dummy binops library

.clang-format

@@ -0,0 +1,148 @@
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+

.gitignore

@@ -0,0 +1,2 @@
+.DS_Store
+build/

CMakeLists.txt

@@ -4,11 +4,13 @@ project(cpp-opencv-example-1)
 
 add_executable(main main.cpp)
 
-
 find_package(OpenCV REQUIRED)
 target_include_directories(main PRIVATE ${OpenCV_INCLUDE_DIRS})
 target_link_libraries(main PRIVATE ${OpenCV_LIBS})
 
 find_package(LibLZMA REQUIRED)
 target_include_directories(main PRIVATE ${LIBLZMA_INCLUDE_DIRS})
-target_link_libraries(main PRIVATE ${LIBLZMA_LIBRARIES})
+target_link_libraries(main PRIVATE ${LIBLZMA_LIBRARIES})
+
+add_subdirectory(lib/binops)
+target_link_libraries(main PRIVATE binops)

lib/binops/CMakeLists.txt

@@ -0,0 +1,8 @@
+include(GoogleTest)
+add_executable(runtests test/main test/addition_tests.cpp)
+find_package(GTest REQUIRED)
+target_link_libraries(runtests PRIVATE GTest::GTest GTest::Main binops)
+gtest_discover_tests(runtests)
+
+add_library(binops SHARED include/binops.hpp src/addition.cpp)
+set_target_properties(binops PROPERTIES PUBLIC_HEADER include/binops.hpp)

lib/binops/include/binops.hpp

@@ -0,0 +1,23 @@
+#ifndef binops_hpp
+#define binops_hpp
+
+#include <stdio.h>
+
+namespace BinOps {
+class Addition {
+ public:
+  void setLHS(int lhs);
+  void setRHS(int rhs);
+
+  int getLHS();
+  int getRHS();
+
+  int perform();
+
+ private:
+  int lhs;
+  int rhs;
+};
+}  // namespace BinOps
+
+#endif

lib/binops/src/addition.cpp

@@ -0,0 +1,13 @@
+#include "../include/binops.hpp"
+
+using namespace BinOps;
+
+void Addition::setLHS(int lhs) { this->lhs = lhs; }
+
+void Addition::setRHS(int rhs) { this->rhs = rhs; }
+
+int Addition::getLHS() { return this->lhs; }
+
+int Addition::getRHS() { return this->rhs; }
+
+int Addition::perform() { return this->lhs + this->rhs; }

lib/binops/test/addition_tests.cpp

@@ -0,0 +1,61 @@
+#include <gtest/gtest.h>
+#include <stdio.h>
+#include "../include/binops.hpp"
+
+using namespace BinOps;
+
+TEST(AdditionTests, TestItIsNotNil) {
+  // when
+  Addition a = Addition();
+
+  // then
+  ASSERT_NE(&a, nullptr);
+}
+
+TEST(AdditionTests, TestItSetsTheLHS) {
+  // given
+  Addition a = Addition();
+
+  // when
+  a.setLHS(3);
+
+  // then
+  ASSERT_EQ(a.getLHS(), 3);
+}
+
+TEST(AdditionTests, TestItSetsTheRHS) {
+  // given
+  Addition a = Addition();
+
+  // when
+  a.setRHS(100);
+
+  // then
+  ASSERT_EQ(a.getRHS(), 100);
+}
+
+TEST(AdditionTests, TestItGivesTheExpectedResultFor3And5) {
+  // given
+  Addition a = Addition();
+  a.setLHS(3);
+  a.setRHS(5);
+
+  // when
+  int result = a.perform();
+
+  // then
+  ASSERT_EQ(result, 8);
+}
+
+TEST(AdditionTests, TestItGivesTheExpectedResultFor1And2) {
+  // given
+  Addition a = Addition();
+  a.setLHS(1);
+  a.setRHS(2);
+
+  // when
+  int result = a.perform();
+
+  // then
+  ASSERT_EQ(result, 3);
+}

lib/binops/test/main.cpp

@@ -0,0 +1,7 @@
+#include <gtest/gtest.h>
+#include <stdio.h>
+
+int main(int argc, char **argv) {
+  ::testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}

main.cpp

@@ -1,50 +1,52 @@
+#include <iostream>
 #include <opencv2/core/core.hpp>
 #include <opencv2/highgui/highgui.hpp>
 #include <opencv2/imgproc/imgproc.hpp>
-#include "helper_functions.h"
-#include <iostream>
+#include "lib/binops/include/binops.hpp"
 
 using namespace cv;
 using namespace std;
 
-int main(int argc, const char * argv[]) {
-    if (argc !=2) {
-        cout << "Usage wrong" << endl;
-        return -1;
-    }
-
-    Mat image;
-    image = imread(argv[1], CV_LOAD_IMAGE_COLOR);
-
-    if(! image.data )
-    {
-        cout <<  "Could not open or find the image" << std::endl ;
-        return -1;
-    }
-
-    namedWindow( "Display window", WINDOW_AUTOSIZE );
-    imshow( "Display window", image );
-
-    waitKey(0);
-
-    Mat image_bw;
-    cvtColor(image, image_bw, COLOR_RGB2GRAY);
-
-    namedWindow( "Display window - b&w", WINDOW_AUTOSIZE );
-    imshow( "Display window - b&w", image_bw);
-
-    waitKey(0);
-
-    Mat image_bin;
-    threshold(image_bw, image_bin, 125, 255, THRESH_BINARY);
-
-    namedWindow( "Display window - bin", WINDOW_AUTOSIZE );
-    imshow( "Display window - bin", image_bin);
-
-    waitKey(0);
-
-    int aux = rgb2gray(4, 4);
-
-    std::cout << "Hello, Lena!\n" << aux << endl;
-    return 0;
+int main(int argc, const char* argv[]) {
+  if (argc != 2) {
+    cout << "Usage wrong" << endl;
+    return -1;
+  }
+
+  Mat image;
+  image = imread(argv[1], CV_LOAD_IMAGE_COLOR);
+
+  if (!image.data) {
+    cout << "Could not open or find the image" << std::endl;
+    return -1;
+  }
+
+  namedWindow("Display window", WINDOW_AUTOSIZE);
+  imshow("Display window", image);
+
+  waitKey(0);
+
+  Mat image_bw;
+  cvtColor(image, image_bw, COLOR_RGB2GRAY);
+
+  namedWindow("Display window - b&w", WINDOW_AUTOSIZE);
+  imshow("Display window - b&w", image_bw);
+
+  waitKey(0);
+
+  Mat image_bin;
+  threshold(image_bw, image_bin, 125, 255, THRESH_BINARY);
+
+  namedWindow("Display window - bin", WINDOW_AUTOSIZE);
+  imshow("Display window - bin", image_bin);
+
+  waitKey(0);
+
+  BinOps::Addition a = BinOps::Addition();
+  a.setLHS(4);
+  a.setRHS(4);
+  int result = a.perform();
+
+  std::cout << "Hello, Lena!\n" << result << endl;
+  return 0;
 }