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// Copyright 2015, Tobias Hermann and the FunctionalPlus contributors.
// https://github.com/Dobiasd/FunctionalPlus
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
#include "doctest/doctest.h"
#include <fplus/fplus.hpp>
#include <vector>
namespace {
auto is_even_int = [](int x){ return x % 2 == 0; };
auto is_bigger_than_3_int = [](int x){ return x > 3; };
typedef std::vector<int> IntVector;
}
TEST_CASE("maps_test, transform_map_values")
{
using namespace fplus;
typedef std::vector<std::pair<std::string, int>> StringIntPairs;
StringIntPairs stringIntPairs = {{"a", 1}, {"a", 2}, {"b", 6}, {"a", 4}};
auto stringIntPairsAsMapGrouped = pairs_to_map_grouped(stringIntPairs);
auto groupNameToMedianMap = transform_map_values(median<std::vector<int>>, stringIntPairsAsMapGrouped);
typedef std::map<std::string, int> StringIntMap;
REQUIRE_EQ(groupNameToMedianMap, StringIntMap({{"a", 2}, {"b", 6}}));
}
TEST_CASE("maps_test, choose")
{
using namespace fplus;
REQUIRE_EQ((choose<int, char>({{1, 'a'}, {2, 'b'}}, 2)), just('b'));
REQUIRE_EQ((choose<int, char>({{1, 'a'}, {1, 'b'}}, 1)), nothing<char>());
REQUIRE_EQ((choose<int, char>({{1, 'a'}, {2, 'b'}}, 3)), nothing<char>());
REQUIRE_EQ((choose<int, char>({}, 2)), nothing<char>());
}
TEST_CASE("maps_test, choose_by")
{
using namespace fplus;
REQUIRE_EQ((choose_by<int, char>({{is_even_int, 'a'}, {is_bigger_than_3_int, 'b'}}, 2)), just('a'));
REQUIRE_EQ((choose_by<int, char>({{is_even_int, 'a'}, {is_bigger_than_3_int, 'b'}}, 5)), just('b'));
REQUIRE_EQ((choose_by<int, char>({{is_even_int, 'a'}, {is_bigger_than_3_int, 'b'}}, 1)), nothing<char>());
REQUIRE_EQ((choose_by<int, char>({{is_even_int, 'a'}, {is_bigger_than_3_int, 'b'}}, 4)), nothing<char>());
REQUIRE_EQ((choose_by<int, char>({}, 2)), nothing<char>());
}
TEST_CASE("maps_test, choose_lazy")
{
using namespace fplus;
typedef std::function<char()> char_stub;
const char_stub a_stub = []() -> char { return 'a'; };
const char_stub b_stub = []() -> char { return 'b'; };
REQUIRE_EQ((choose_lazy<int, char_stub>({{1, a_stub}, {2, b_stub}}, 2)), just('b'));
REQUIRE_EQ((choose_lazy<int, char_stub>({{1, a_stub}, {1, b_stub}}, 1)), nothing<char>());
REQUIRE_EQ((choose_lazy<int, char_stub>({{1, a_stub}, {2, b_stub}}, 3)), nothing<char>());
REQUIRE_EQ((choose_lazy<int, char_stub>({}, 2)), nothing<char>());
}
TEST_CASE("maps_test, choose_by_lazy")
{
using namespace fplus;
typedef std::function<char()> char_stub;
const char_stub a_stub = []() -> char { return 'a'; };
const char_stub b_stub = []() -> char { return 'b'; };
REQUIRE_EQ((choose_by_lazy<int, char_stub>({{is_even_int, a_stub}, {is_bigger_than_3_int, b_stub}}, 2)), just('a'));
REQUIRE_EQ((choose_by_lazy<int, char_stub>({{is_even_int, a_stub}, {is_bigger_than_3_int, b_stub}}, 5)), just('b'));
REQUIRE_EQ((choose_by_lazy<int, char_stub>({{is_even_int, a_stub}, {is_bigger_than_3_int, b_stub}}, 1)), nothing<char>());
REQUIRE_EQ((choose_by_lazy<int, char_stub>({{is_even_int, a_stub}, {is_bigger_than_3_int, b_stub}}, 4)), nothing<char>());
REQUIRE_EQ((choose_by_lazy<int, char_stub>({}, 2)), nothing<char>());
}
TEST_CASE("maps_test, choose_def")
{
using namespace fplus;
REQUIRE_EQ((choose_def<int>('c', {{1, 'a'}, {2, 'b'}}, 2)), 'b');
REQUIRE_EQ((choose_def<int>('c', {{1, 'a'}, {1, 'b'}}, 1)), 'c');
REQUIRE_EQ((choose_def<int>('c', {{1, 'a'}, {2, 'b'}}, 3)), 'c');
REQUIRE_EQ((choose_def<int>('c', {}, 2)), 'c');
}
TEST_CASE("maps_test, choose_by_def")
{
using namespace fplus;
REQUIRE_EQ((choose_by_def<int, char>('c', {{is_even_int, 'a'}, {is_bigger_than_3_int, 'b'}}, 2)), 'a');
REQUIRE_EQ((choose_by_def<int, char>('c', {{is_even_int, 'a'}, {is_bigger_than_3_int, 'b'}}, 5)), 'b');
REQUIRE_EQ((choose_by_def<int, char>('c', {{is_even_int, 'a'}, {is_bigger_than_3_int, 'b'}}, 1)), 'c');
REQUIRE_EQ((choose_by_def<int, char>('c', {{is_even_int, 'a'}, {is_bigger_than_3_int, 'b'}}, 4)), 'c');
REQUIRE_EQ((choose_by_def<int, char>('c', {}, 2)), 'c');
}
TEST_CASE("maps_test, choose_def_lazy")
{
using namespace fplus;
typedef std::function<char()> char_stub;
const char_stub a_stub = []() -> char { return 'a'; };
const char_stub b_stub = []() -> char { return 'b'; };
const char_stub c_stub = []() -> char { return 'c'; };
REQUIRE_EQ((choose_def_lazy<int>(c_stub, {{1, a_stub}, {2, b_stub}}, 2)), 'b');
REQUIRE_EQ((choose_def_lazy<int>(c_stub, {{1, a_stub}, {1, b_stub}}, 1)), 'c');
REQUIRE_EQ((choose_def_lazy<int>(c_stub, {{1, a_stub}, {2, b_stub}}, 3)), 'c');
REQUIRE_EQ((choose_def_lazy<int>(c_stub, {}, 2)), 'c');
}
TEST_CASE("maps_test, choose_by_def_lazy")
{
using namespace fplus;
typedef std::function<char()> char_stub;
const char_stub a_stub = []() -> char { return 'a'; };
const char_stub b_stub = []() -> char { return 'b'; };
const char_stub c_stub = []() -> char { return 'c'; };
REQUIRE_EQ((choose_by_def_lazy<int, char_stub>(c_stub, {{is_even_int, a_stub}, {is_bigger_than_3_int, b_stub}}, 2)), 'a');
REQUIRE_EQ((choose_by_def_lazy<int, char_stub>(c_stub, {{is_even_int, a_stub}, {is_bigger_than_3_int, b_stub}}, 5)), 'b');
REQUIRE_EQ((choose_by_def_lazy<int, char_stub>(c_stub, {{is_even_int, a_stub}, {is_bigger_than_3_int, b_stub}}, 1)), 'c');
REQUIRE_EQ((choose_by_def_lazy<int, char_stub>(c_stub, {{is_even_int, a_stub}, {is_bigger_than_3_int, b_stub}}, 4)), 'c');
REQUIRE_EQ((choose_by_def_lazy<int, char_stub>(c_stub, {}, 2)), 'c');
}
TEST_CASE("maps_test, map functions")
{
using namespace fplus;
typedef std::map<int, std::string> IntStringMap;
typedef std::map<std::string, int> StringIntMap;
IntStringMap intStringMap = {{1, "2"}, {4, "53"}, {7, "21"}};
StringIntMap stringIntMap = {{ "2", 1}, { "53", 4}, { "21", 7}};
REQUIRE_EQ(swap_keys_and_values(intStringMap), stringIntMap);
typedef std::vector<std::string> StringVector;
REQUIRE_EQ(get_map_keys(intStringMap), IntVector({1, 4, 7}));
REQUIRE_EQ(get_map_values(intStringMap), StringVector({"2", "53", "21"}));
typedef std::unordered_map<int, std::string> IntStringUnorderedMap;
typedef std::unordered_map<std::string, int> StringIntUnorderedMap;
IntStringUnorderedMap intStringUnorderedMap = { { 1, "2" },{ 4, "53" },{ 7, "21" } };
StringIntUnorderedMap stringIntUnorderedMapSwapped = { { "2", 1 },{ "53", 4 },{ "21", 7 } };
REQUIRE_EQ(swap_keys_and_values(intStringUnorderedMap), stringIntUnorderedMapSwapped);
REQUIRE_EQ(convert_container<IntStringUnorderedMap>(intStringMap), intStringUnorderedMap);
REQUIRE_EQ(convert_container<IntStringMap>(intStringUnorderedMap), intStringMap);
std::vector<int> mapInts = { 1, 4, 7 };
std::vector<std::string> mapStrings = { "2", "53", "21" };
REQUIRE_EQ(create_map(mapInts, mapStrings), intStringMap);
REQUIRE_EQ(create_unordered_map(mapInts, mapStrings), intStringUnorderedMap);
IntStringMap intsAsStringsMap = {{1, "1"}, {4, "4"}, {7, "7"}};
REQUIRE_EQ(create_map_with(show<int>, mapInts), intsAsStringsMap);
IntStringUnorderedMap intsAsStringsUnorderedMap = {{1, "1"}, {4, "4"}, {7, "7"}};
REQUIRE_EQ(create_unordered_map_with(show<int>, mapInts), intsAsStringsUnorderedMap);
const auto is_int_string_map_key_even =
[&](const IntStringMap::value_type& p) -> bool
{
return is_even_int(p.first);
};
REQUIRE_EQ(keep_if(is_int_string_map_key_even, IntStringMap({{4, "4"}, {7, "7"}})), IntStringMap({{4, "4"}}));
REQUIRE_EQ(get_from_map(intStringMap, 1), just<std::string>("2"));
REQUIRE_EQ(get_from_map(intStringMap, 9), nothing<std::string>());
REQUIRE_EQ(get_from_map_with_def(intStringMap, std::string("n/a"), 1), "2");
REQUIRE_EQ(get_from_map_with_def(intStringMap, std::string("n/a"), 9), "n/a");
REQUIRE_EQ(map_contains(intStringMap, 1), true);
REQUIRE_EQ(map_contains(intStringMap, 9), false);
REQUIRE_EQ(get_first_from_map(intStringMap, IntVector({4, 1})), just<std::string>("53"));
REQUIRE_EQ(get_first_from_map(intStringMap, IntVector({5, 1})), just<std::string>("2"));
REQUIRE_EQ(get_first_from_map(intStringMap, IntVector({5, 2})), nothing<std::string>());
REQUIRE_EQ(get_first_from_map_with_def(intStringMap, std::string("n/a"), IntVector({4, 1})), "53");
REQUIRE_EQ(get_first_from_map_with_def(intStringMap, std::string("n/a"), IntVector({5, 1})), "2");
REQUIRE_EQ(get_first_from_map_with_def(intStringMap, std::string("n/a"), IntVector({5, 2})), "n/a");
IntStringMap union_map_1 = {{0, "a"}, {1, "b"}};
IntStringMap union_map_2 = {{0, "c"}, {2, "d"}};
IntStringMap union_map_res = {{0, "a"}, {1, "b"}, {2, "d"}};
IntStringMap union_map_with_res = {{0, "ac"}, {1, "b"}, {2, "d"}};
REQUIRE_EQ(map_union(union_map_1, union_map_2), union_map_res);
REQUIRE_EQ(map_union_with(append<std::string>, union_map_1, union_map_2), union_map_with_res);
IntStringUnorderedMap union_umap_1 = {{0, "a"}, {1, "b"}};
IntStringUnorderedMap union_umap_2 = {{0, "c"}, {2, "d"}};
IntStringUnorderedMap union_umap_res = {{0, "a"}, {1, "b"}, {2, "d"}};
IntStringUnorderedMap union_umap_with_res = {{0, "ac"}, {1, "b"}, {2, "d"}};
REQUIRE_EQ(map_union(union_umap_1, union_umap_2), union_umap_res);
REQUIRE_EQ(map_union_with(append<std::string>, union_umap_1, union_umap_2), union_umap_with_res);
typedef std::map<std::string::value_type, int> CharIntMap;
typedef std::map<int, std::string::value_type> IntCharMap;
CharIntMap charIntMap = {{'a', 1}, {'b', 2}, {'A', 3}, {'C', 4}};
IntCharMap intCharMap = {{1, 'a'}, {2, 'b'}, {3, 'A'}, {4, 'C'}};
const auto is_upper = [](std::string::value_type c) -> bool
{
return (std::isupper(c) != 0);
};
const auto is_lower = [](std::string::value_type c) -> bool
{
return (std::islower(c) != 0);
};
REQUIRE_EQ(map_keep_if(is_upper, charIntMap), CharIntMap({{'A', 3}, {'C', 4}}));
REQUIRE_EQ(map_drop_if(is_lower, charIntMap), CharIntMap({{'A', 3}, {'C', 4}}));
typedef std::vector<std::string::value_type> CharVector;
REQUIRE_EQ(map_keep(CharVector({'b', 'F'}), charIntMap), CharIntMap({{'b', 2}}));
REQUIRE_EQ(map_drop(CharVector({'a', 'A', 'C', 'F'}), charIntMap), CharIntMap({{'b', 2}}));
REQUIRE_EQ(map_keep_if_value(is_upper, intCharMap), IntCharMap({{3, 'A'}, {4, 'C'}}));
REQUIRE_EQ(map_drop_if_value(is_lower, intCharMap), IntCharMap({{3, 'A'}, {4, 'C'}}));
REQUIRE_EQ(map_keep_values(CharVector({'b', 'F'}), intCharMap), IntCharMap({{2, 'b'}}));
REQUIRE_EQ(map_drop_values(CharVector({'a', 'A', 'C', 'F'}), intCharMap), IntCharMap({{2, 'b'}}));
typedef std::vector<CharIntMap> CharIntMaps;
typedef std::vector<maybe<int>> MaybeInts;
REQUIRE_EQ(
map_pluck('a', CharIntMaps({{{'a',1}, {'b',2}}, {{'a',3}}, {{'c',4}}})),
MaybeInts({1, 3, {}}));
}
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