cpp-useful-iterators/recursive_iterator_mixed_container.t.h

//
//  recursive_iterator_mixed_container.t.h
//  iterator
//
//  Created by Sam Jaffe on 2/18/17.
//

#pragma once

#include <cxxtest/TestSuite.h>

#include "recursive_iterator.hpp"

class recursive_iterator_mixed_container_TestSuite : public CxxTest::TestSuite {
public:
  void test_map_vector_iterator_matches_size() {
    std::map<int, std::vector<int>> const obj{{1, {1, 2}}, {2, {3, 4, 5}}};
    std::vector<std::tuple<int, int>> const expected{{1, 1}, {1, 2}, {2, 3}, {2, 4}, {2, 5}};
    auto rit = make_recursive_iterator(obj);
    decltype(rit) end{ };
    TS_ASSERT_EQUALS(std::distance(rit, end), expected.size());
  }
  
  void test_map_vector_iterator_matches_data() {
    std::map<int, std::vector<int>> const obj{{1, {1, 2}}, {2, {3, 4, 5}}};
    std::vector<std::tuple<int, int>> const expected{{1, 1}, {1, 2}, {2, 3}, {2, 4}, {2, 5}};
    auto rit = make_recursive_iterator(obj);
    for (auto it = expected.begin(), end = expected.end(); it != end; ++it, ++rit) {
      TS_ASSERT_EQUALS(*it, *rit);
    }
  }

  void test_map_vector_iterator_can_edit_data() {
    std::map<int, std::vector<int>> obj{{1, {1, 2}}, {2, {3, 4, 5}}};
    auto rit = make_recursive_iterator(obj);
    std::get<1>(*rit) = 6;
    TS_ASSERT_EQUALS(obj[1][0], 6);
  }
  
  void test_vector_map_iterator_matches_size() {
    std::vector<std::map<int, int>> const obj{{{1, 1}, {2, 2}}, {{3, 3}, {4, 4}, {5, 5}}};
    std::vector<std::tuple<int, int>> const expected{{1, 1}, {2, 2}, {3, 3}, {4, 4}, {5, 5}};
    auto rit = make_recursive_iterator(obj);
    decltype(rit) end{ };
    TS_ASSERT_EQUALS(std::distance(rit, end), expected.size());
  }
  
  void test_vector_map_iterator_matches_data() {
    std::vector<std::map<int, int>> const obj{{{1, 1}, {2, 2}}, {{3, 3}, {4, 4}, {5, 5}}};
    std::vector<std::tuple<int, int>> const expected{{1, 1}, {2, 2}, {3, 3}, {4, 4}, {5, 5}};
    auto rit = make_recursive_iterator(obj);
    for (auto it = expected.begin(), end = expected.end(); it != end; ++it, ++rit) {
      TS_ASSERT_EQUALS(*it, *rit);
    }
  }
  
  void test_vector_map_iterator_can_edit_data() {
    std::vector<std::map<int, int>> obj{{{1, 1}, {2, 2}}, {{3, 3}, {4, 4}, {5, 5}}};
    auto rit = make_recursive_iterator(obj);
    std::get<1>(*rit) = 6;
    TS_ASSERT_EQUALS(obj[0][1], 6);
  }
  
  void test_map_vector_map_iterator() {
    std::map<int, std::vector<std::map<int, int>>> const obj{{1, {{{1, 1}, {2, 2}}}}};
    std::vector<std::tuple<int, int, int>> const expected{{1, 1, 1}, {1, 2, 2}};
    auto rit = make_recursive_iterator(obj);
    decltype(rit) end{ };
    TS_ASSERT_EQUALS(std::distance(rit, end), expected.size());
  }
};