[Hacker Rank]: Warmup: Solve Me Firs. Solved ✅

src/lib/exercises/include/exercises/hackerrank/warmup/solve_me_first.hpp

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+#pragma once
+
+#include <cstdint>
+
+namespace hackerrank::warmup {
+int solveMeFirst(int a, int b);
+};

src/lib/exercises/src/hackerrank/warmup/solve_me_first.cpp

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+#include <exercises/hackerrank/warmup/solve_me_first.hpp>
+
+namespace hackerrank::warmup {
+int solveMeFirst(int a, int b) { return a + b; }
+} // namespace hackerrank::warmup

src/tests/unit/lib/hackerrank/warmup/solve_me_first.test.cpp

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+#include <catch2/catch_test_macros.hpp>
+
+#include <exercises/hackerrank/warmup/solve_me_first.hpp>
+#include <filesystem>
+#include <fstream>
+#include <nlohmann/json.hpp>
+#include <vector>
+
+using json = nlohmann::json;
+
+TEST_CASE("solveMeFirst", "[warmup]") {
+  std::filesystem::path cwd = std::filesystem::current_path();
+  std::string path =
+      cwd.string() +
+      "/unit/lib/hackerrank/warmup/solve_me_first.testcases.json";
+
+  INFO("solveMeFirst JSON test cases FILE: " << path);
+
+  std::ifstream f(path);
+  json data = json::parse(f);
+
+  for (auto testcase : data) {
+    int result = hackerrank::warmup::solveMeFirst(testcase["a"], testcase["b"]);
+    CHECK(result == testcase["expected"]);
+  }
+}

src/tests/unit/lib/hackerrank/warmup/solve_me_first.testcases.json

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+[
+  { "a": 0, "b": 0, "expected": 0 },
+  { "a": 2, "b": 3, "expected": 5 },
+  { "a": 0, "b": 7, "expected": 7 },
+  { "a": 7, "b": 0, "expected": 7 },
+  { "a": 7, "b": 7, "expected": 14 }
+]