serenity/AK/Tests/TestFormat.cpp

117 lines
4 KiB
C++

/*
* Copyright (c) 2020, the SerenityOS developers.
* 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/StringBuilder.h>
TEST_CASE(format_string_literals)
{
EXPECT_EQ(String::formatted("prefix-{}-suffix", "abc"), "prefix-abc-suffix");
EXPECT_EQ(String::formatted("{}{}{}", "a", "b", "c"), "abc");
}
TEST_CASE(format_integers)
{
EXPECT_EQ(String::formatted("{}", 42u), "42");
EXPECT_EQ(String::formatted("{:4}", 42u), " 42");
EXPECT_EQ(String::formatted("{:08}", 42u), "00000042");
EXPECT_EQ(String::formatted("{:7}", -17), " -17");
EXPECT_EQ(String::formatted("{}", -17), "-17");
EXPECT_EQ(String::formatted("{:04}", 13), "0013");
EXPECT_EQ(String::formatted("{:08x}", 4096), "00001000");
EXPECT_EQ(String::formatted("{:x}", 0x1111222233334444ull), "1111222233334444");
EXPECT_EQ(String::formatted("{:4}", 12345678), "12345678");
}
TEST_CASE(reorder_format_arguments)
{
EXPECT_EQ(String::formatted("{1}{0}", "a", "b"), "ba");
EXPECT_EQ(String::formatted("{0}{1}", "a", "b"), "ab");
EXPECT_EQ(String::formatted("{0}{0}{0}", "a", "b"), "aaa");
EXPECT_EQ(String::formatted("{1}{}{0}", "a", "b", "c"), "baa");
}
TEST_CASE(escape_braces)
{
EXPECT_EQ(String::formatted("{{{}", "foo"), "{foo");
EXPECT_EQ(String::formatted("{}}}", "bar"), "bar}");
}
TEST_CASE(everything)
{
EXPECT_EQ(String::formatted("{{{:04}/{}/{0:8}/{1}", 42u, "foo"), "{0042/foo/ 42/foo");
}
TEST_CASE(string_builder)
{
StringBuilder builder;
builder.appendff(" {} ", 42);
builder.appendff("{1}{0} ", 1, 2);
EXPECT_EQ(builder.to_string(), " 42 21 ");
}
TEST_CASE(format_without_arguments)
{
EXPECT_EQ(String::formatted("foo"), "foo");
}
TEST_CASE(format_upper_case_integer)
{
EXPECT_EQ(String::formatted("{:4X}", 0xff), " FF");
EXPECT_EQ(String::formatted("{:#4X}", 0xff), "0XFF");
EXPECT_EQ(String::formatted("{:b}", 0xff), "11111111");
EXPECT_EQ(String::formatted("{:B}", 0xff), "11111111");
EXPECT_EQ(String::formatted("{:#b}", 0xff), "0b11111111");
}
TEST_CASE(format_aligned)
{
EXPECT_EQ(String::formatted("{:*<8}", 13), "13******");
EXPECT_EQ(String::formatted("{:*^8}", 13), "***13***");
EXPECT_EQ(String::formatted("{:*>8}", 13), "******13");
EXPECT_EQ(String::formatted("{:*>+8}", 13), "*****+13");
EXPECT_EQ(String::formatted("{:*^ 8}", 13), "** 13***");
}
TEST_CASE(format_octal)
{
EXPECT_EQ(String::formatted("{:o}", 0744), "744");
EXPECT_EQ(String::formatted("{:#o}", 0744), "0744");
}
TEST_CASE(zero_pad)
{
EXPECT_EQ(String::formatted("{: <010}", 42), "42 ");
EXPECT_EQ(String::formatted("{:010}", 42), "0000000042");
EXPECT_EQ(String::formatted("{:/^010}", 42), "////42////");
}
TEST_MAIN(Format)