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/// Author: Daniel Poetzl
/// \file Tests for small map
#include <testing-utils/use_catch.h>
#include <util/small_map.h>
// This method is a friend of small_map
void small_map_test()
{
SECTION("Basic")
{
small_mapt<int> m;
REQUIRE(m.empty());
REQUIRE(m.size() == 0);
int &i = m[0];
i = 7;
REQUIRE(!m.empty());
REQUIRE(m.size() == 1);
int &j = m[5];
j = 3;
REQUIRE(m.size() == 2);
int &k = m[6];
k = 9;
REQUIRE(m.size() == 3);
auto it1 = m.find(2);
REQUIRE(it1 == m.end());
auto it2 = m.find(5);
REQUIRE(it2 != m.end());
std::size_t n1 = m.erase(2);
REQUIRE(!n1);
std::size_t n2 = m.erase(5);
REQUIRE(n2 == 1);
}
SECTION("Iterator")
{
small_mapt<unsigned int> m;
m[0] = 0;
m[3] = 3;
m[7] = 7;
REQUIRE(m.size() == 3);
REQUIRE(m.begin() != m.end());
auto it1 = m.begin()++;
it1++;
auto it2 = ++m.begin();
REQUIRE(it1 == it2);
int cnt = 0;
for(auto it = m.begin(); it != m.end(); it++)
{
REQUIRE(it->first == it->second);
REQUIRE((*it).first == (*it).second);
cnt++;
}
REQUIRE(cnt == 3);
m.erase(0);
m.erase(3);
m.erase(7);
REQUIRE(m.begin() == m.end());
}
SECTION("Copy")
{
small_mapt<int> m1;
m1[3] = 3;
m1[5] = 5;
small_mapt<int> m2(m1);
REQUIRE(m1.size() == m2.size());
REQUIRE(m1[3] == m2[3]);
REQUIRE(m1[5] == m2[5]);
m2[3] = 4;
REQUIRE(m1[3] != m2[3]);
REQUIRE(m1.size() == m2.size());
m2[4] = 4;
REQUIRE(m1.size() != m2.size());
}
SECTION("Copy and modify")
{
small_mapt<int> m;
m[0] = 1;
m[1] = 2;
m[3] = 3;
m[7] = 4;
REQUIRE(m.size() == 4);
small_mapt<int> *p = m.copy_and_erase(3);
REQUIRE(p->size() == 3);
REQUIRE((*p)[0] == 1);
REQUIRE((*p)[1] == 2);
REQUIRE((*p)[7] == 4);
delete p;
p = m.copy_and_insert(6, 4);
REQUIRE(p->size() == 5);
REQUIRE((*p)[0] == 1);
REQUIRE((*p)[1] == 2);
REQUIRE((*p)[3] == 3);
REQUIRE((*p)[6] == 4);
REQUIRE((*p)[7] == 4);
delete p;
}
SECTION("Boundary")
{
small_mapt<int> m;
for(std::size_t i = 0; i < small_mapt<int>::NUM; i++)
{
m[i] = i;
}
for(std::size_t i = 0; i < small_mapt<int>::NUM; i++)
{
m.erase(i);
}
REQUIRE(m.empty());
}
SECTION("Value iterator")
{
small_mapt<int> m;
m[0] = 0;
m[1] = 1;
m[4] = 4;
auto v_it = m.value_begin();
REQUIRE(v_it != m.value_end());
REQUIRE(*v_it == 4);
v_it++;
REQUIRE(*v_it == 1);
v_it++;
REQUIRE(*v_it == 0);
v_it++;
REQUIRE(v_it == m.value_end());
}
SECTION("Non-default arguments")
{
small_mapt<int, uint32_t, 4> m;
m[0] = 1;
m[1] = 2;
m[2] = 3;
m[3] = 4;
REQUIRE(m.size() == 4);
REQUIRE(m[0] == 1);
REQUIRE(m[1] == 2);
REQUIRE(m[2] == 3);
REQUIRE(m[3] == 4);
std::size_t n;
n = m.erase(1);
REQUIRE(n == 1);
REQUIRE(m.size() == 3);
n = m.erase(3);
REQUIRE(n == 1);
REQUIRE(m.size() == 2);
n = m.erase(3);
REQUIRE(n == 0);
REQUIRE(m.size() == 2);
auto it = m.find(2);
REQUIRE(it != m.end());
}
}
TEST_CASE("Small map")
{
small_map_test();
}
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