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262e412634
ladybird/Tests/AK/TestStringUtils.cpp
Timothy Flynn 262e412634 AK: Implement method to convert a String/StringView to title case 
This implementation preserves consecutive spaces in the orginal string.
2021-08-26 22:04:09 +01:00

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/*
* Copyright (c) 2020, Fei Wu <f.eiwu@yahoo.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibTest/TestCase.h>
#include <AK/StringUtils.h>
TEST_CASE(matches_null)
{
EXPECT(AK::StringUtils::matches(StringView(), StringView()));
EXPECT(!AK::StringUtils::matches(StringView(), ""));
EXPECT(!AK::StringUtils::matches(StringView(), "*"));
EXPECT(!AK::StringUtils::matches(StringView(), "?"));
EXPECT(!AK::StringUtils::matches(StringView(), "a"));
EXPECT(!AK::StringUtils::matches("", StringView()));
EXPECT(!AK::StringUtils::matches("a", StringView()));
}
TEST_CASE(matches_empty)
{
EXPECT(AK::StringUtils::matches("", ""));
EXPECT(AK::StringUtils::matches("", "*"));
EXPECT(!AK::StringUtils::matches("", "?"));
EXPECT(!AK::StringUtils::matches("", "a"));
EXPECT(!AK::StringUtils::matches("a", ""));
}
TEST_CASE(matches_case_sensitive)
{
EXPECT(AK::StringUtils::matches("a", "a", CaseSensitivity::CaseSensitive));
EXPECT(!AK::StringUtils::matches("a", "A", CaseSensitivity::CaseSensitive));
EXPECT(!AK::StringUtils::matches("A", "a", CaseSensitivity::CaseSensitive));
}
TEST_CASE(matches_case_insensitive)
{
EXPECT(!AK::StringUtils::matches("aa", "a"));
EXPECT(AK::StringUtils::matches("aa", "*"));
EXPECT(!AK::StringUtils::matches("cb", "?a"));
EXPECT(AK::StringUtils::matches("adceb", "a*b"));
EXPECT(!AK::StringUtils::matches("acdcb", "a*c?b"));
}
TEST_CASE(matches_with_positions)
{
Vector<AK::MaskSpan> spans;
EXPECT(AK::StringUtils::matches("abbb", "a*", CaseSensitivity::CaseSensitive, &spans));
EXPECT(spans == Vector<AK::MaskSpan>({ { 1, 3 } }));
spans.clear();
EXPECT(AK::StringUtils::matches("abbb", "?*", CaseSensitivity::CaseSensitive, &spans));
EXPECT_EQ(spans, Vector<AK::MaskSpan>({ { 0, 1 }, { 1, 3 } }));
spans.clear();
EXPECT(AK::StringUtils::matches("acdcxb", "a*c?b", CaseSensitivity::CaseSensitive, &spans));
EXPECT_EQ(spans, Vector<AK::MaskSpan>({ { 1, 2 }, { 4, 1 } }));
spans.clear();
EXPECT(AK::StringUtils::matches("aaaa", "A*", CaseSensitivity::CaseInsensitive, &spans));
EXPECT_EQ(spans, Vector<AK::MaskSpan>({ { 1, 3 } }));
}
// #4607
TEST_CASE(matches_trailing)
{
EXPECT(AK::StringUtils::matches("ab", "ab*"));
EXPECT(AK::StringUtils::matches("ab", "ab****"));
EXPECT(AK::StringUtils::matches("ab", "*ab****"));
}
TEST_CASE(convert_to_int)
{
auto value = AK::StringUtils::convert_to_int(StringView());
EXPECT(!value.has_value());
value = AK::StringUtils::convert_to_int("");
EXPECT(!value.has_value());
value = AK::StringUtils::convert_to_int("a");
EXPECT(!value.has_value());
value = AK::StringUtils::convert_to_int("+");
EXPECT(!value.has_value());
value = AK::StringUtils::convert_to_int("-");
EXPECT(!value.has_value());
auto actual = AK::StringUtils::convert_to_int("0");
EXPECT_EQ(actual.has_value(), true);
EXPECT_EQ(actual.value(), 0);
actual = AK::StringUtils::convert_to_int("1");
EXPECT_EQ(actual.has_value(), true);
EXPECT_EQ(actual.value(), 1);
actual = AK::StringUtils::convert_to_int("+1");
EXPECT_EQ(actual.has_value(), true);
EXPECT_EQ(actual.value(), 1);
actual = AK::StringUtils::convert_to_int("-1");
EXPECT_EQ(actual.has_value(), true);
EXPECT_EQ(actual.value(), -1);
actual = AK::StringUtils::convert_to_int("01");
EXPECT_EQ(actual.has_value(), true);
EXPECT_EQ(actual.value(), 1);
actual = AK::StringUtils::convert_to_int("12345");
EXPECT_EQ(actual.has_value(), true);
EXPECT_EQ(actual.value(), 12345);
actual = AK::StringUtils::convert_to_int("-12345");
EXPECT_EQ(actual.has_value(), true);
EXPECT_EQ(actual.value(), -12345);
actual = AK::StringUtils::convert_to_int(" \t-12345 \n\n");
EXPECT_EQ(actual.has_value(), true);
EXPECT_EQ(actual.value(), -12345);
auto actual_i8 = AK::StringUtils::convert_to_int<i8>("-1");
EXPECT(actual_i8.has_value());
EXPECT_EQ(actual_i8.value(), -1);
EXPECT_EQ(sizeof(actual_i8.value()), (size_t)1);
actual_i8 = AK::StringUtils::convert_to_int<i8>("128");
EXPECT(!actual_i8.has_value());
auto actual_i16 = AK::StringUtils::convert_to_int<i16>("-1");
EXPECT(actual_i16.has_value());
EXPECT_EQ(actual_i16.value(), -1);
EXPECT_EQ(sizeof(actual_i16.value()), (size_t)2);
actual_i16 = AK::StringUtils::convert_to_int<i16>("32768");
EXPECT(!actual_i16.has_value());
auto actual_i32 = AK::StringUtils::convert_to_int<i32>("-1");
EXPECT(actual_i32.has_value());
EXPECT_EQ(actual_i32.value(), -1);
EXPECT_EQ(sizeof(actual_i32.value()), (size_t)4);
actual_i32 = AK::StringUtils::convert_to_int<i32>("2147483648");
EXPECT(!actual_i32.has_value());
auto actual_i64 = AK::StringUtils::convert_to_int<i64>("-1");
EXPECT(actual_i64.has_value());
EXPECT_EQ(actual_i64.value(), -1);
EXPECT_EQ(sizeof(actual_i64.value()), (size_t)8);
actual_i64 = AK::StringUtils::convert_to_int<i64>("9223372036854775808");
EXPECT(!actual_i64.has_value());
}
TEST_CASE(convert_to_uint)
{
auto value = AK::StringUtils::convert_to_uint(StringView());
EXPECT(!value.has_value());
value = AK::StringUtils::convert_to_uint("");
EXPECT(!value.has_value());
value = AK::StringUtils::convert_to_uint("a");
EXPECT(!value.has_value());
value = AK::StringUtils::convert_to_uint("+");
EXPECT(!value.has_value());
value = AK::StringUtils::convert_to_uint("-");
EXPECT(!value.has_value());
value = AK::StringUtils::convert_to_uint("+1");
EXPECT(!value.has_value());
value = AK::StringUtils::convert_to_uint("-1");
EXPECT(!value.has_value());
auto actual = AK::StringUtils::convert_to_uint("0");
EXPECT_EQ(actual.has_value(), true);
EXPECT_EQ(actual.value(), 0u);
actual = AK::StringUtils::convert_to_uint("1");
EXPECT_EQ(actual.has_value(), true);
EXPECT_EQ(actual.value(), 1u);
actual = AK::StringUtils::convert_to_uint("01");
EXPECT_EQ(actual.has_value(), true);
EXPECT_EQ(actual.value(), 1u);
actual = AK::StringUtils::convert_to_uint("12345");
EXPECT_EQ(actual.has_value(), true);
EXPECT_EQ(actual.value(), 12345u);
actual = AK::StringUtils::convert_to_uint(" \t12345 \n\n");
EXPECT_EQ(actual.has_value(), true);
EXPECT_EQ(actual.value(), 12345u);
auto actual_u8 = AK::StringUtils::convert_to_uint<u8>("255");
EXPECT(actual_u8.has_value());
EXPECT_EQ(actual_u8.value(), 255u);
EXPECT_EQ(sizeof(actual_u8.value()), (size_t)1);
actual_u8 = AK::StringUtils::convert_to_uint<u8>("256");
EXPECT(!actual_u8.has_value());
auto actual_u16 = AK::StringUtils::convert_to_uint<u16>("65535");
EXPECT(actual_u16.has_value());
EXPECT_EQ(actual_u16.value(), 65535u);
EXPECT_EQ(sizeof(actual_u16.value()), (size_t)2);
actual_u16 = AK::StringUtils::convert_to_uint<u16>("65536");
EXPECT(!actual_u16.has_value());
auto actual_u32 = AK::StringUtils::convert_to_uint<u32>("4294967295");
EXPECT(actual_u32.has_value());
EXPECT_EQ(actual_u32.value(), 4294967295ul);
EXPECT_EQ(sizeof(actual_u32.value()), (size_t)4);
actual_u32 = AK::StringUtils::convert_to_uint<u32>("4294967296");
EXPECT(!actual_u32.has_value());
auto actual_u64 = AK::StringUtils::convert_to_uint<u64>("18446744073709551615");
EXPECT(actual_u64.has_value());
EXPECT_EQ(actual_u64.value(), 18446744073709551615ull);
EXPECT_EQ(sizeof(actual_u64.value()), (size_t)8);
actual_u64 = AK::StringUtils::convert_to_uint<u64>("18446744073709551616");
EXPECT(!actual_u64.has_value());
}
TEST_CASE(ends_with)
{
String test_string = "ABCDEF";
EXPECT(AK::StringUtils::ends_with(test_string, "DEF", CaseSensitivity::CaseSensitive));
EXPECT(AK::StringUtils::ends_with(test_string, "ABCDEF", CaseSensitivity::CaseSensitive));
EXPECT(!AK::StringUtils::ends_with(test_string, "ABCDE", CaseSensitivity::CaseSensitive));
EXPECT(!AK::StringUtils::ends_with(test_string, "ABCDEFG", CaseSensitivity::CaseSensitive));
EXPECT(AK::StringUtils::ends_with(test_string, "def", CaseSensitivity::CaseInsensitive));
EXPECT(!AK::StringUtils::ends_with(test_string, "def", CaseSensitivity::CaseSensitive));
}
TEST_CASE(starts_with)
{
String test_string = "ABCDEF";
EXPECT(AK::StringUtils::starts_with(test_string, "ABC", CaseSensitivity::CaseSensitive));
EXPECT(AK::StringUtils::starts_with(test_string, "ABCDEF", CaseSensitivity::CaseSensitive));
EXPECT(!AK::StringUtils::starts_with(test_string, "BCDEF", CaseSensitivity::CaseSensitive));
EXPECT(!AK::StringUtils::starts_with(test_string, "ABCDEFG", CaseSensitivity::CaseSensitive));
EXPECT(AK::StringUtils::starts_with(test_string, "abc", CaseSensitivity::CaseInsensitive));
EXPECT(!AK::StringUtils::starts_with(test_string, "abc", CaseSensitivity::CaseSensitive));
}
TEST_CASE(contains)
{
String test_string = "ABCDEFABCXYZ";
EXPECT(AK::StringUtils::contains(test_string, "ABC", CaseSensitivity::CaseSensitive));
EXPECT(AK::StringUtils::contains(test_string, "ABC", CaseSensitivity::CaseInsensitive));
EXPECT(AK::StringUtils::contains(test_string, "AbC", CaseSensitivity::CaseInsensitive));
EXPECT(AK::StringUtils::contains(test_string, "BCX", CaseSensitivity::CaseSensitive));
EXPECT(AK::StringUtils::contains(test_string, "BCX", CaseSensitivity::CaseInsensitive));
EXPECT(AK::StringUtils::contains(test_string, "BcX", CaseSensitivity::CaseInsensitive));
EXPECT(!AK::StringUtils::contains(test_string, "xyz", CaseSensitivity::CaseSensitive));
EXPECT(AK::StringUtils::contains(test_string, "xyz", CaseSensitivity::CaseInsensitive));
EXPECT(!AK::StringUtils::contains(test_string, "EFG", CaseSensitivity::CaseSensitive));
EXPECT(!AK::StringUtils::contains(test_string, "EfG", CaseSensitivity::CaseInsensitive));
EXPECT(AK::StringUtils::contains(test_string, "", CaseSensitivity::CaseSensitive));
EXPECT(AK::StringUtils::contains(test_string, "", CaseSensitivity::CaseInsensitive));
EXPECT(!AK::StringUtils::contains("", test_string, CaseSensitivity::CaseSensitive));
EXPECT(!AK::StringUtils::contains("", test_string, CaseSensitivity::CaseInsensitive));
EXPECT(!AK::StringUtils::contains(test_string, "L", CaseSensitivity::CaseSensitive));
EXPECT(!AK::StringUtils::contains(test_string, "L", CaseSensitivity::CaseInsensitive));
}
TEST_CASE(is_whitespace)
{
EXPECT(AK::StringUtils::is_whitespace(""));
EXPECT(AK::StringUtils::is_whitespace(" "));
EXPECT(AK::StringUtils::is_whitespace(" \t"));
EXPECT(AK::StringUtils::is_whitespace(" \t\n"));
EXPECT(AK::StringUtils::is_whitespace(" \t\n\r\v"));
EXPECT(!AK::StringUtils::is_whitespace(" a "));
EXPECT(!AK::StringUtils::is_whitespace("a\t"));
}
TEST_CASE(find)
{
String test_string = "1234567";
EXPECT_EQ(AK::StringUtils::find(test_string, "1").value_or(1), 0u);
EXPECT_EQ(AK::StringUtils::find(test_string, "2").value_or(2), 1u);
EXPECT_EQ(AK::StringUtils::find(test_string, "3").value_or(3), 2u);
EXPECT_EQ(AK::StringUtils::find(test_string, "4").value_or(4), 3u);
EXPECT_EQ(AK::StringUtils::find(test_string, "5").value_or(5), 4u);
EXPECT_EQ(AK::StringUtils::find(test_string, "34").value_or(3), 2u);
EXPECT_EQ(AK::StringUtils::find(test_string, "78").has_value(), false);
}
TEST_CASE(to_snakecase)
{
EXPECT_EQ(AK::StringUtils::to_snakecase("foobar"), "foobar");
EXPECT_EQ(AK::StringUtils::to_snakecase("Foobar"), "foobar");
EXPECT_EQ(AK::StringUtils::to_snakecase("FOOBAR"), "foobar");
EXPECT_EQ(AK::StringUtils::to_snakecase("fooBar"), "foo_bar");
EXPECT_EQ(AK::StringUtils::to_snakecase("FooBar"), "foo_bar");
EXPECT_EQ(AK::StringUtils::to_snakecase("fooBAR"), "foo_bar");
EXPECT_EQ(AK::StringUtils::to_snakecase("FOOBar"), "foo_bar");
EXPECT_EQ(AK::StringUtils::to_snakecase("foo_bar"), "foo_bar");
EXPECT_EQ(AK::StringUtils::to_snakecase("FBar"), "f_bar");
EXPECT_EQ(AK::StringUtils::to_snakecase("FooB"), "foo_b");
}
TEST_CASE(to_titlecase)
{
EXPECT_EQ(AK::StringUtils::to_titlecase(""sv), ""sv);
EXPECT_EQ(AK::StringUtils::to_titlecase("f"sv), "F"sv);
EXPECT_EQ(AK::StringUtils::to_titlecase("foobar"sv), "Foobar"sv);
EXPECT_EQ(AK::StringUtils::to_titlecase("Foobar"sv), "Foobar"sv);
EXPECT_EQ(AK::StringUtils::to_titlecase("FOOBAR"sv), "Foobar"sv);
EXPECT_EQ(AK::StringUtils::to_titlecase("foo bar"sv), "Foo Bar"sv);
EXPECT_EQ(AK::StringUtils::to_titlecase("foo bAR"sv), "Foo Bar"sv);
EXPECT_EQ(AK::StringUtils::to_titlecase("foo bar"sv), "Foo Bar"sv);
EXPECT_EQ(AK::StringUtils::to_titlecase("foo bar"sv), "Foo Bar"sv);
EXPECT_EQ(AK::StringUtils::to_titlecase(" foo bar "sv), " Foo Bar "sv);
}
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