t/greeting-test/source/greeting-test.cpp

#include <greeting/greeting.hpp>

#define CATCH_CONFIG_MAIN
#include <catch/catch.hpp>

TEST_CASE("greeting generation") {
  using greeting::make_greeting;
  REQUIRE(make_greeting("Matthias") == "Hello Matthias!");
  REQUIRE(make_greeting("world") == "Hello world!");
  REQUIRE(make_greeting("") == "Hello!");
}