File: deep_to_string.cpp

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// This file is part of CAF, the C++ Actor Framework. See the file LICENSE in
// the main distribution directory for license terms and copyright or visit
// https://github.com/actor-framework/actor-framework/blob/master/LICENSE.

#define CAF_SUITE deep_to_string

#include "caf/deep_to_string.hpp"

#include "core-test.hpp"

using namespace caf;

#define CHECK_DEEP_TO_STRING(val, str) CHECK_EQ(deep_to_string(val), str)

CAF_TEST(timespans use the highest unit available when printing) {
  CHECK_EQ(to_string(config_value{timespan{0}}), "0s");
  CHECK_DEEP_TO_STRING(timespan{0}, "0s");
  CHECK_DEEP_TO_STRING(timespan{1}, "1ns");
  CHECK_DEEP_TO_STRING(timespan{1'000}, "1us");
  CHECK_DEEP_TO_STRING(timespan{1'000'000}, "1ms");
  CHECK_DEEP_TO_STRING(timespan{1'000'000'000}, "1s");
  CHECK_DEEP_TO_STRING(timespan{60'000'000'000}, "1min");
}

CAF_TEST(lists use square brackets) {
  int i32_array[] = {1, 2, 3, 4};
  using i32_array_type = std::array<int, 4>;
  CHECK_DEEP_TO_STRING(std::list<int>({1, 2, 3, 4}), "[1, 2, 3, 4]");
  CHECK_DEEP_TO_STRING(std::vector<int>({1, 2, 3, 4}), "[1, 2, 3, 4]");
  CHECK_DEEP_TO_STRING(std::set<int>({1, 2, 3, 4}), "[1, 2, 3, 4]");
  CHECK_DEEP_TO_STRING(i32_array_type({{1, 2, 3, 4}}), "[1, 2, 3, 4]");
  CHECK_DEEP_TO_STRING(i32_array, "[1, 2, 3, 4]");
  bool bool_array[] = {false, true};
  using bool_array_type = std::array<bool, 2>;
  CHECK_DEEP_TO_STRING(std::list<bool>({false, true}), "[false, true]");
  CHECK_DEEP_TO_STRING(std::vector<bool>({false, true}), "[false, true]");
  CHECK_DEEP_TO_STRING(std::set<bool>({false, true}), "[false, true]");
  CHECK_DEEP_TO_STRING(bool_array_type({{false, true}}), "[false, true]");
  CHECK_DEEP_TO_STRING(bool_array, "[false, true]");
}

CAF_TEST(pointers and optionals use dereference syntax) {
  auto i = 42;
  CHECK_DEEP_TO_STRING(&i, "*42");
  CHECK_DEEP_TO_STRING(static_cast<int*>(nullptr), "null");
  CHECK_DEEP_TO_STRING(optional<int>{}, "null");
  CHECK_DEEP_TO_STRING(optional<int>{23}, "*23");
}

CAF_TEST(buffers) {
  // Use `signed char` explicitly to make sure all compilers agree.
  std::vector<signed char> buf;
  CHECK_EQ(deep_to_string(buf), "[]");
  buf.push_back(-1);
  CHECK_EQ(deep_to_string(buf), "[-1]");
  buf.push_back(0);
  CHECK_EQ(deep_to_string(buf), "[-1, 0]");
  buf.push_back(127);
  CHECK_EQ(deep_to_string(buf), "[-1, 0, 127]");
  buf.push_back(10);
  CHECK_EQ(deep_to_string(buf), "[-1, 0, 127, 10]");
  buf.push_back(16);
  CHECK_EQ(deep_to_string(buf), "[-1, 0, 127, 10, 16]");
}