import std.conv : to;
import std.format : format;
import std.uni : unicode;

// This was originally using Cyrillic script.
// Unfortunately this is a pretty active range for changes,
// and hence broke in an update.
// Therefore the range Basic latin was used instead as it
// unlikely to ever change.

assert(unicode.InBasic_latin.to!string == "[0..128)");

// The specs '%s' and '%d' are equivalent to the to!string call above.
assert(format("%d", unicode.InBasic_latin) == unicode.InBasic_latin.to!string);

assert(format("%#x", unicode.InBasic_latin) == "[0..0x80)");
assert(format("%#X", unicode.InBasic_latin) == "[0..0X80)");