Files
c3c/test/unit/stdlib/conv_tests.c3
Christoffer Lerno 25bccf4883 New faults and syntax (#2034)
- Remove `[?]` syntax.
- Change `int!` to `int?` syntax.
- New `fault` declarations.
- Enum associated values can reference the calling enum.
2025-03-10 00:11:35 +01:00

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module conv_tests;
import std::io;
fn void? comparison_helper_32_to_8(Char32 c32, String expected_output)
{
char[8] out;
usz len = conv::char32_to_utf8(c32, &out)!;
assert(len == expected_output.len, "Len should be 1");
foreach (i, c : expected_output)
{
assert(out[i] == c, "Expected other value");
}
}
fn void? comparison_helper_8_to_32(String in, Char32 c32)
{
usz len = in.len;
Char32 res = conv::utf8_to_char32(in.ptr, &len)!;
assert(len == in.len, "All len should be used.");
assert(res == c32, "Expected character match.");
}
fn void assert_utf8_is_error(String in)
{
usz len = in.len;
assert(@catch(conv::utf8_to_char32(in.ptr, &len)), "Expected error");
}
fn void test_char32_ut8_boundary() @test
{
// First sequence per len
comparison_helper_32_to_8(0x00000000, { 0 })!!;
comparison_helper_32_to_8(0x00000080, { 0xc2, 0x80 })!!;
comparison_helper_32_to_8(0x00000800, { 0xe0, 0xa0, 0x80 })!!;
comparison_helper_32_to_8(0x00010000, { 0xf0, 0x90, 0x80, 0x80 })!!;
assert(@catch(comparison_helper_32_to_8(0x10ffff + 1, { 0 })), "Expected error");
// Last seq per len
comparison_helper_32_to_8(0x0000007f, { 0x7f })!!;
comparison_helper_32_to_8(0x000007ff, { 0xdf, 0xbf })!!;
comparison_helper_32_to_8(0x0000ffff, { 0xef, 0xbf, 0xbf })!!;
comparison_helper_32_to_8(0x0010ffff, { 0xf4, 0x8f, 0xbf, 0xbf })!!;
// Other boundaries
comparison_helper_32_to_8(0x0000d7ff, { 0xed, 0x9f, 0xbf})!!;
comparison_helper_32_to_8(0x0000e000, { 0xee, 0x80, 0x80 })!!;
comparison_helper_32_to_8(0x0000fffd, { 0xef, 0xbf, 0xbd })!!;
}
fn void test_utf8_to_char32_boundary() @test
{
// First sequence per len
comparison_helper_8_to_32("\0", 0x0 )!!;
comparison_helper_8_to_32({ 0xc2, 0x80 }, 0x80)!!;
comparison_helper_8_to_32({ 0xe0, 0xa0, 0x80 }, 0x800 )!!;
comparison_helper_8_to_32({ 0xf0, 0x90, 0x80, 0x80 }, 0x10000)!!;
// Last seq per len
comparison_helper_8_to_32({ 0x7f }, 0x7f)!!;
comparison_helper_8_to_32({ 0xdf, 0xbf }, 0x7ff )!!;
comparison_helper_8_to_32({ 0xef, 0xbf, 0xbf }, 0xffff)!!;
comparison_helper_8_to_32({ 0xf4, 0x8f, 0xbf, 0xbf }, 0x10ffff)!!;
// Other boundaries
comparison_helper_8_to_32({ 0xed, 0x9f, 0xbf }, 0xd7ff)!!;
comparison_helper_8_to_32({ 0xee, 0x80, 0x80 }, 0xe000)!!;
comparison_helper_8_to_32({ 0xef, 0xbf, 0xbd }, 0xfffd)!!;
assert_utf8_is_error({ 0x80 });
assert_utf8_is_error({ 0xbf });
assert_utf8_is_error({ 0xfe });
assert_utf8_is_error({ 0xff });
assert_utf8_is_error({ 0xfe, 0xfe, 0xff, 0xff });
// Overlong
assert_utf8_is_error({ 0xc0, 0xaf });
assert_utf8_is_error({ 0xe0, 0x80, 0xaf });
assert_utf8_is_error({ 0xf0, 0x80, 0x80, 0xaf });
assert_utf8_is_error({ 0xf8, 0x80, 0x80, 0xaf });
assert_utf8_is_error({ 0xfc, 0x80, 0x80, 0x80, 0xaf });
}