ladybird/Tests/AK/TestBinaryHeap.cpp
Linus Groh 6e19ab2bbc AK+Everywhere: Rename String to DeprecatedString
We have a new, improved string type coming up in AK (OOM aware, no null
state), and while it's going to use UTF-8, the name UTF8String is a
mouthful - so let's free up the String name by renaming the existing
class.
Making the old one have an annoying name will hopefully also help with
quick adoption :^)
2022-12-06 08:54:33 +01:00

68 lines
1.6 KiB
C++

/*
* Copyright (c) 2021, Idan Horowitz <idan.horowitz@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibTest/TestCase.h>
#include <AK/BinaryHeap.h>
#include <AK/DeprecatedString.h>
TEST_CASE(construct)
{
BinaryHeap<int, int, 5> empty;
EXPECT(empty.is_empty());
EXPECT(empty.size() == 0);
}
TEST_CASE(construct_from_existing)
{
int keys[] = { 3, 2, 1 };
char values[] = { 'c', 'b', 'a' };
BinaryHeap<int, char, 5> from_existing(keys, values, 3);
EXPECT(from_existing.size() == 3);
EXPECT_EQ(from_existing.pop_min(), 'a');
EXPECT_EQ(from_existing.pop_min(), 'b');
EXPECT_EQ(from_existing.pop_min(), 'c');
}
TEST_CASE(populate_int)
{
BinaryHeap<int, int, 5> ints;
ints.insert(1, 10);
ints.insert(3, 20);
ints.insert(2, 30);
EXPECT_EQ(ints.size(), 3u);
EXPECT_EQ(ints.pop_min(), 10);
EXPECT_EQ(ints.size(), 2u);
EXPECT_EQ(ints.pop_min(), 30);
EXPECT_EQ(ints.size(), 1u);
EXPECT_EQ(ints.pop_min(), 20);
EXPECT_EQ(ints.size(), 0u);
}
TEST_CASE(populate_string)
{
BinaryHeap<int, DeprecatedString, 5> strings;
strings.insert(1, "ABC");
strings.insert(2, "DEF");
EXPECT_EQ(strings.size(), 2u);
EXPECT_EQ(strings.pop_min(), "ABC");
EXPECT_EQ(strings.pop_min(), "DEF");
EXPECT(strings.is_empty());
}
TEST_CASE(large_populate_reverse)
{
BinaryHeap<int, int, 1024> ints;
for (int i = 1023; i >= 0; i--) {
ints.insert(i, i);
}
EXPECT_EQ(ints.size(), 1024u);
for (int i = 0; i < 1024; i++) {
EXPECT_EQ(ints.peek_min(), i);
EXPECT_EQ(ints.pop_min(), i);
}
}