TASK00 - Добавление функции генерации рандомного числа

src/helpers/helpers.cpp

@@ -1,5 +1,6 @@
 #include <iostream>
 #include <string>
+#include <random>
 
 #include <boost/algorithm/string.hpp>
 #include <boost/format.hpp>
@@ -115,4 +116,13 @@ std::string ToHex(std::byte* src, size_t len)
 
   return ret;
 }
+
+uint64_t Random()
+{
+  std::random_device device;
+  std::mt19937 random_generator(device());
+  std::uniform_int_distribution<std::mt19937::result_type> dist(0,UINT64_MAX);
+
+  return dist(random_generator);
+}
 } // namespace uad

src/helpers/helpers.h

@@ -11,4 +11,6 @@ std::string PathCat(boost::beast::string_view base, boost::beast::string_view pa
 void Fail(boost::beast::error_code ec, char const* what);
 
 std::string ToHex(std::byte* src, size_t len);
+
+uint64_t Random();
 } // namespace uad

tests/helpers/helpers_TEST.cpp

@@ -52,3 +52,39 @@ BOOST_AUTO_TEST_CASE(ToHex_should_return_empty_string_if_no_arr_or_no_length)
   BOOST_CHECK_EQUAL(ToHex(&a1, 0), ""s);
   BOOST_CHECK_EQUAL(ToHex(nullptr, 1), ""s);
 }
+
+BOOST_AUTO_TEST_CASE(Random_should_return_different_numbers_on_multiple_calls)
+{
+  auto a1 = Random();
+  auto a2 = Random();
+  auto a3 = Random();
+  auto a4 = Random();
+  auto a5 = Random();
+  auto a6 = Random();
+  auto a7 = Random();
+  auto a8 = Random();
+  auto a9 = Random();
+  auto a10 = Random();
+
+  auto b1 = Random();
+  auto b2 = Random();
+  auto b3 = Random();
+  auto b4 = Random();
+  auto b5 = Random();
+  auto b6 = Random();
+  auto b7 = Random();
+  auto b8 = Random();
+  auto b9 = Random();
+  auto b10 = Random();
+
+  BOOST_CHECK(a1 != b1);
+  BOOST_CHECK(a2 != b2);
+  BOOST_CHECK(a3 != b3);
+  BOOST_CHECK(a4 != b4);
+  BOOST_CHECK(a5 != b5);
+  BOOST_CHECK(a6 != b6);
+  BOOST_CHECK(a7 != b7);
+  BOOST_CHECK(a8 != b8);
+  BOOST_CHECK(a9 != b9);
+  BOOST_CHECK(a10 != b10);
+}