add code to be tested

Author: hacksdump

CMakeLists.txt

@@ -3,4 +3,4 @@ project(gtest_coverage)
 
 set(CMAKE_CXX_STANDARD 20)
 
-add_executable(gtest_coverage main.cpp)
+add_executable(gtest_coverage main.cpp src/testsubject.cpp)

main.cpp

@@ -1,6 +1,11 @@
 #include <iostream>
 
+#include "src/testsubject.h"
+
 int main() {
-    std::cout << "Hello, World!" << std::endl;
+    int evenNum = 2;
+    int oddNum = 3;
+    std::cout << "Square of " << evenNum << " is: " << TestSubject::square(evenNum) << std::endl;
+    std::cout << "Square of " << oddNum << " is: " << TestSubject::square(oddNum) << std::endl;
     return 0;
 }

src/testsubject.cpp

@@ -0,0 +1,14 @@
+#include "testsubject.h"
+
+bool TestSubject::isEven(int x) {
+    return (x % 2 == 0);
+}
+
+int TestSubject::square(int x) {
+    if (isEven(x)) {
+        return x * x;
+    } else {
+        // Intentionally made wrong
+        return x + x;
+    }
+}

src/testsubject.h

@@ -0,0 +1,8 @@
+#pragma once
+
+class TestSubject {
+public:
+    static bool isEven(int x);
+
+    static int square(int x);
+};