Files
scylladb/tests/urchin/map_difference_test.cc
Pekka Enberg a388b088c6 map_difference: Parametrize value comparison
If map value type is lw_shared_ptr<T>, for example, we need to be able
to pass our own value comparison function to the difference() function.

Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
2015-05-27 16:22:13 +03:00

103 lines
2.5 KiB
C++

/*
* Copyright 2015 Cloudius Systems
*/
#define BOOST_TEST_DYN_LINK
#define BOOST_TEST_MODULE core
#include <boost/test/unit_test.hpp>
#include "map_difference.hh"
#include <map>
using namespace std;
BOOST_AUTO_TEST_CASE(both_empty) {
map<int, int> left;
map<int, int> right;
auto diff = difference(left, right, [](int x, int y) -> bool {
return x == y;
});
BOOST_REQUIRE(diff.entries_only_on_left.empty());
BOOST_REQUIRE(diff.entries_only_on_right.empty());
BOOST_REQUIRE(diff.entries_in_common.empty());
BOOST_REQUIRE(diff.entries_differing.empty());
}
BOOST_AUTO_TEST_CASE(left_empty) {
map<int, int> left;
map<int, int> right;
right.emplace(1, 100);
right.emplace(2, 200);
auto diff = difference(left, right, [](int x, int y) -> bool {
return x == y;
});
BOOST_REQUIRE(diff.entries_only_on_left.empty());
BOOST_REQUIRE(diff.entries_only_on_right == right);
BOOST_REQUIRE(diff.entries_in_common.empty());
BOOST_REQUIRE(diff.entries_differing.empty());
}
BOOST_AUTO_TEST_CASE(right_empty) {
map<int, int> left;
map<int, int> right;
left.emplace(1, 100);
left.emplace(2, 200);
auto diff = difference(left, right, [](int x, int y) -> bool {
return x == y;
});
BOOST_REQUIRE(diff.entries_only_on_left == left);
BOOST_REQUIRE(diff.entries_only_on_right.empty());
BOOST_REQUIRE(diff.entries_in_common.empty());
BOOST_REQUIRE(diff.entries_differing.empty());
}
BOOST_AUTO_TEST_CASE(both_same) {
map<int, int> left;
map<int, int> right;
left.emplace(1, 100);
left.emplace(2, 200);
right.emplace(1, 100);
right.emplace(2, 200);
auto diff = difference(left, right, [](int x, int y) -> bool {
return x == y;
});
BOOST_REQUIRE(diff.entries_only_on_left.empty());
BOOST_REQUIRE(diff.entries_only_on_right.empty());
BOOST_REQUIRE(diff.entries_in_common == left);
BOOST_REQUIRE(diff.entries_differing.empty());
}
BOOST_AUTO_TEST_CASE(differing_values) {
map<int, int> left;
map<int, int> right;
left.emplace(1, 100);
left.emplace(2, 200);
right.emplace(1, 1000);
right.emplace(2, 2000);
auto diff = difference(left, right, [](int x, int y) -> bool {
return x == y;
});
BOOST_REQUIRE(diff.entries_only_on_left.empty());
BOOST_REQUIRE(diff.entries_only_on_right.empty());
BOOST_REQUIRE(diff.entries_in_common.empty());
BOOST_REQUIRE(diff.entries_differing.size() == 2);
}