testIp6ParseTransform

fn testIp6ParseTransform(expected: []const u8, input: []const u8) !void {
    const ua = switch (Ip6Address.Unresolved.parse(input)) {
        .success => |p| p,
        else => |x| {
            std.debug.print("failed to parse \"{s}\": {any}\n", .{ input, x });
            return error.TestFailed;
        },
    };
    var buffer: [100]u8 = undefined;
    const result = try std.mem.print(&buffer, "{f}", .{ua});
    try std.testing.expectEqualStrings(expected, result);
}