Zig 0.17.0-dev (Split by item)

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testCalcWtf8Len

unicode.testCalcWtf8Len

fn testCalcWtf8Len() !void

File

lib/std/unicode.zig:2150

Code

fn testCalcWtf8Len() !void {
    const L = utf8ToUtf16LeStringLiteral;
    try testing.expectEqual(@as(usize, 1), calcWtf8Len(L("a")));
    try testing.expectEqual(@as(usize, 10), calcWtf8Len(L("abcdefghij")));
    // unpaired surrogate
    try testing.expectEqual(@as(usize, 3), calcWtf8Len(&[_]u16{
        mem.nativeToLittle(u16, 0xD800),
    }));
    try testing.expectEqual(@as(usize, 15), calcWtf8Len(L("こんにちは")));
    // First codepoints that are encoded as 1, 2, 3, and 4 bytes
    try testing.expectEqual(@as(usize, 1 + 2 + 3 + 4), calcWtf8Len(L("\u{0}\u{80}\u{800}\u{10000}")));
}