ladybird/Tests/AK/TestTrie.cpp
Ali Mohammad Pur 5e1499d104 Everywhere: Rename {Deprecated => Byte}String
This commit un-deprecates DeprecatedString, and repurposes it as a byte
string.
As the null state has already been removed, there are no other
particularly hairy blockers in repurposing this type as a byte string
(what it _really_ is).

This commit is auto-generated:
  $ xs=$(ack -l \bDeprecatedString\b\|deprecated_string AK Userland \
    Meta Ports Ladybird Tests Kernel)
  $ perl -pie 's/\bDeprecatedString\b/ByteString/g;
    s/deprecated_string/byte_string/g' $xs
  $ clang-format --style=file -i \
    $(git diff --name-only | grep \.cpp\|\.h)
  $ gn format $(git ls-files '*.gn' '*.gni')
2023-12-17 18:25:10 +03:30

67 lines
2.1 KiB
C++

/*
* Copyright (c) 2020, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibTest/TestCase.h>
#include <AK/StringView.h>
#include <AK/Trie.h>
TEST_CASE(normal_behavior)
{
Trie<char, ByteString> dictionary('/', "");
constexpr StringView data[] { "test"sv, "example"sv, "foo"sv, "foobar"sv };
constexpr size_t total_chars = 18; // root (1), 'test' (4), 'example' (7), 'foo' (3), 'foobar' (3, "foo" already stored).
for (auto& view : data) {
auto it = view.begin();
MUST(dictionary.insert(it, view.end(), view, [](auto& parent, auto& it) -> Optional<ByteString> { return ByteString::formatted("{}{}", parent.metadata_value(), *it); }));
}
size_t i = 0;
MUST(dictionary.for_each_node_in_tree_order([&](auto&) {
++i;
}));
EXPECT_EQ(i, total_chars);
for (auto& view : data) {
auto it = view.begin();
auto& node = dictionary.traverse_until_last_accessible_node(it, view.end());
EXPECT(it.is_end());
EXPECT(node.metadata().has_value());
EXPECT_EQ(view, node.metadata_value());
}
constexpr StringView test_data_with_prefix_in_dict[] { "testx"sv, "exampley"sv, "fooa"sv, "foobarb"sv, "fox"sv, "text"sv };
for (auto& view : test_data_with_prefix_in_dict) {
auto it = view.begin();
auto& node = dictionary.traverse_until_last_accessible_node(it, view.end());
EXPECT(!it.is_end());
EXPECT(node.metadata().has_value());
EXPECT(view.starts_with(node.metadata_value()));
}
}
TEST_CASE(iterate)
{
Trie<int> bunch_of_numbers { 0 };
Array<int, 64> input;
for (size_t i = 0; i < input.size(); ++i)
input[i] = i;
MUST(bunch_of_numbers.insert(input.begin(), input.end()));
// Iteration order is preorder (order between adjacent nodes is not defined, but parents come before children)
// in this case, the tree is linear.
size_t i = 0;
bool is_root = true;
MUST(bunch_of_numbers.for_each_node_in_tree_order([&](auto& node) {
if (is_root) {
is_root = false;
return;
}
EXPECT_EQ(input[i], node.value());
++i;
}));
}