[cpp] Add catch and qt examples

cpp/catch2/CMakeLists.txt

@@ -0,0 +1,31 @@
+################################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Practice project for testing with catch2 framework                  ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+
+cmake_minimum_required(VERSION 3.15)
+
+project(
+    #[[NAME]]       Catch2
+    VERSION         1.0
+    DESCRIPTION     "Practice project for learning Catch2"
+    LANGUAGES       CXX
+)
+
+add_compile_options(-Wall)
+
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/bin)
+
+Include(FetchContent)
+FetchContent_Declare(
+    Catch2
+    GIT_REPOSITORY https://github.com/catchorg/Catch2.git
+    GIT_TAG        v3.0.1
+)
+FetchContent_MakeAvailable(Catch2)
+
+add_subdirectory(src)
+add_subdirectory(test)

cpp/catch2/include/klips.hpp

@@ -0,0 +1,10 @@
+
+#ifndef KLIPS_KLIPS_H
+#define KLIPS_KLIPS_H
+
+
+class klips { };
+
+unsigned int factorial(unsigned int);
+
+#endif  // KLIPS_KLIPS_H

cpp/catch2/include/type_name.hpp

@@ -0,0 +1,29 @@
+// Authored by 康桓瑋 on SO: https://stackoverflow.com/a/56766138
+#ifndef CATCH2_TYPE_NAME_HPP
+
+#include <string_view>
+
+template <typename T>
+constexpr auto type_name() {
+  std::string_view name, prefix, suffix;
+#ifdef __clang__
+  name = __PRETTY_FUNCTION__;
+  prefix = "auto type_name() [T = ";
+  suffix = "]";
+#elif defined(__GNUC__)
+  name = __PRETTY_FUNCTION__;
+  prefix = "constexpr auto type_name() [with T = ";
+  suffix = "]";
+#elif defined(_MSC_VER)
+  name = __FUNCSIG__;
+  prefix = "auto __cdecl type_name<";
+  suffix = ">(void)";
+#endif
+  name.remove_prefix(prefix.size());
+  name.remove_suffix(suffix.size());
+  return name;
+}
+
+#define CATCH2_TYPE_NAME_HPP
+
+#endif  // CATCH2_TYPE_NAME_HPP

cpp/catch2/src/CMakeLists.txt

@@ -0,0 +1,22 @@
+################################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Practice project for testing with catch2 framework                  ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+
+cmake_minimum_required(VERSION 3.15)
+
+project(
+    #[[NAME]]       Catch2
+    VERSION         1.0
+    DESCRIPTION     "Practice project for learning Catch2"
+    LANGUAGES       CXX
+)
+
+add_compile_options(-Wall)
+add_definitions("-std=c++17")
+
+add_library(klips SHARED klips.cpp)
+target_include_directories(klips PRIVATE ${CMAKE_SOURCE_DIR}/include)

cpp/catch2/src/klips.cpp

@@ -0,0 +1,4 @@
+
+unsigned int factorial( unsigned int number ) {
+  return number <= 1 ? number : factorial(number-1)*number;
+}

cpp/catch2/test/CMakeLists.txt

@@ -0,0 +1,22 @@
+################################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Practice project for testing with catch2 framework                  ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+
+cmake_minimum_required(VERSION 3.15)
+
+project(
+    #[[NAME]]       Catch2
+    VERSION         1.0
+    DESCRIPTION     "Practice project for learning Catch2"
+    LANGUAGES       CXX
+)
+
+add_compile_options(-Wall)
+
+add_executable(test_klips test_klips.cpp)
+target_link_libraries(test_klips PRIVATE Catch2::Catch2WithMain klips)
+target_include_directories(test_klips PRIVATE ${CMAKE_SOURCE_DIR}/include)

cpp/catch2/test/test_klips.cpp

@@ -0,0 +1,147 @@
+#define CATCH_CONFIG_MAIN
+
+#include <iostream>
+
+#include "../bin/catch.hpp"
+#include "klips.hpp"
+#include "type_name.hpp"
+
+#define TT() std::cout << "T = " << type_name<TestType>() << std::endl;
+#define TD(x)                                                                  \
+  std::cout << type_name<decltype(x)>() << " " << #x << " = " << x << std::endl;
+#define T(x) std::cout << "T = " << type_name<x>() << std::endl;
+
+TEST_CASE("factorials are computed", "[factorial]") {
+  REQUIRE(factorial(1) == 1);
+  REQUIRE(factorial(2) == 2);
+  REQUIRE(factorial(3) == 6);
+  REQUIRE(factorial(10) == 3628800);
+}
+
+TEST_CASE("Generators") {
+  auto i = GENERATE(1, 3, 5);
+  TD(i);
+}
+
+TEST_CASE("Generators 2") {
+  auto i = GENERATE(1, 2);
+  SECTION("one") {
+    auto j = GENERATE(-3, -2);
+    REQUIRE(j < i);
+    std::cout << "i = " << i << "; j = " << j << std::endl;
+  }
+  SECTION("two") {
+    auto k = GENERATE(4, 5, 6);
+    REQUIRE(i != k);
+    std::cout << "i = " << i << "; k = " << k << std::endl;
+  }
+}
+
+TEST_CASE("Complex mix of sections and generates") {
+  auto i = GENERATE(1, 2);
+  SECTION("A") {
+    std::cout << "i = " << i << "; A passed" << std::endl;
+    SUCCEED("A");
+  }
+  std::cout << "left A\n";
+  auto j = GENERATE(3, 4);
+  std::cout << "i = " << i << "; j = " << j << std::endl;
+  SECTION("B") {
+    std::cout << "i = " << i << "; j = " << j << "; B passed;" << std::endl;
+    SUCCEED("B");
+  }
+  auto k = GENERATE(5, 6);
+  std::cout << "i = " << i << "; k = " << k << std::endl;
+  SUCCEED();
+}
+
+TEST_CASE("Test generaators 3", "[test]") { GENERATE(values({1, 2})); }
+
+TEMPLATE_TEST_CASE("Testing template tests", "[test][template]", int8_t,
+                   int16_t, int32_t, int64_t) {
+  TT();
+}
+
+template <typename T> struct Foo {
+  size_t size() { return 0; }
+};
+
+template <typename T> struct Test {
+  T test() {
+    T x;
+    return x;
+  }
+};
+
+TEMPLATE_PRODUCT_TEST_CASE("A Template product test case",
+                           "[template][product]", (std::vector, Test),
+                           (int, float)) {
+  TT();
+}
+
+TEMPLATE_PRODUCT_TEST_CASE("Product with differing arities",
+                           "[template][product]", std::tuple,
+                           (int, (int, double), (int, double, float))) {
+  TT();
+}
+
+using types = std::tuple<int8_t, int16_t, int32_t, int64_t>;
+
+TEMPLATE_LIST_TEST_CASE("Testing template list tests", "[test][template][list]",
+                        types) {
+  TT();
+}
+
+TEMPLATE_TEST_CASE_SIG(
+    "TemplateTestSig: arrays can be created from NTTP arguments",
+    "[vector][template][nttp]", ((typename T, int V), T, V), (int, 5),
+    (float, 4), (std::string, 15), ((std::tuple<int, float>), 6)) {
+  T(T);
+  std::cout << "V = " << V;
+  std::array<T, V> v;
+  REQUIRE(v.size() > 1);
+}
+
+template <typename T, size_t S> struct Bar {
+  size_t size() { return S; }
+};
+
+TEMPLATE_PRODUCT_TEST_CASE_SIG(
+    "A Template product test case with array signature",
+    "[template][product][nttp]", ((typename T, size_t S), T, S),
+    (std::array, Bar), ((int, 9), (float, 42))) {
+  TT();
+  TestType x;
+  REQUIRE(x.size() > 0);
+}
+
+template <typename T> struct test_config_get {
+  template <bool must_find> void run() {
+    //    Config c{};
+    //    std::string key{"the_key"};
+    //    std::string value{"the_value"};
+    //    c.set(key, value);
+    if constexpr (must_find) {
+      std::cout << "Test 1 ran";
+    } else {
+      std::cout << "Test 2 ran";
+    }
+  }
+};
+template <> template <bool must_find> void test_config_get<std::string>::run() {
+  if constexpr (must_find) {
+    std::cout << "Test 1 ran for strings";
+  } else {
+    std::cout << "Test 2 ran for strings";
+  }
+}
+
+TEMPLATE_PRODUCT_TEST_CASE("Test", "[test]", test_config_get,
+                           (int, std::string)) {
+  TT();
+  TestType t;
+  test_config_get<int> s;
+  s.template run<true>();
+  //  TestType t;
+  //  t.run<true>();
+}