ladybird/AK/Tests/TestHashMap.cpp
2020-03-06 11:22:23 +01:00

134 lines
4 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <AK/TestSuite.h>
#include <AK/String.h>
#include <AK/HashMap.h>
TEST_CASE(construct)
{
typedef HashMap<int, int> IntIntMap;
EXPECT(IntIntMap().is_empty());
EXPECT_EQ(IntIntMap().size(), 0u);
}
TEST_CASE(populate)
{
HashMap<int, String> number_to_string;
number_to_string.set(1, "One");
number_to_string.set(2, "Two");
number_to_string.set(3, "Three");
EXPECT_EQ(number_to_string.is_empty(), false);
EXPECT_EQ(number_to_string.size(), 3u);
}
TEST_CASE(range_loop)
{
HashMap<int, String> number_to_string;
number_to_string.set(1, "One");
number_to_string.set(2, "Two");
number_to_string.set(3, "Three");
int loop_counter = 0;
for (auto& it : number_to_string) {
EXPECT_EQ(it.value.is_null(), false);
++loop_counter;
}
EXPECT_EQ(loop_counter, 3);
}
TEST_CASE(map_remove)
{
HashMap<int, String> number_to_string;
number_to_string.set(1, "One");
number_to_string.set(2, "Two");
number_to_string.set(3, "Three");
number_to_string.remove(1);
EXPECT_EQ(number_to_string.size(), 2u);
EXPECT(number_to_string.find(1) == number_to_string.end());
number_to_string.remove(3);
EXPECT_EQ(number_to_string.size(), 1u);
EXPECT(number_to_string.find(3) == number_to_string.end());
EXPECT(number_to_string.find(2) != number_to_string.end());
}
TEST_CASE(case_insensitive)
{
HashMap<String, int, CaseInsensitiveStringTraits> casemap;
EXPECT_EQ(String("nickserv").to_lowercase(), String("NickServ").to_lowercase());
casemap.set("nickserv", 3);
casemap.set("NickServ", 3);
EXPECT_EQ(casemap.size(), 1u);
}
TEST_CASE(assert_on_iteration_during_clear)
{
struct Object {
~Object()
{
m_map->begin();
}
HashMap<int, Object>* m_map;
};
HashMap<int, Object> map;
map.set(0, { &map });
map.clear();
}
TEST_CASE(hashmap_of_nonnullownptr_get)
{
struct Object {
Object(const String& s) : string(s) {}
String string;
};
HashMap<int, NonnullOwnPtr<Object>> objects;
objects.set(1, make<Object>("One"));
objects.set(2, make<Object>("Two"));
objects.set(3, make<Object>("Three"));
{
auto x = objects.get(2);
EXPECT_EQ(x.has_value(), true);
EXPECT_EQ(x.value()->string, "Two");
}
{
// Do it again to make sure that peeking into the map above didn't
// remove the value from the map.
auto x = objects.get(2);
EXPECT_EQ(x.has_value(), true);
EXPECT_EQ(x.value()->string, "Two");
}
EXPECT_EQ(objects.size(), 3u);
}
TEST_MAIN(HashMap)