zuzu-rust 0.2.0

Rust implementation of ZuzuScript
Documentation 
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from test/more import *;

requires_capability( "fs" );

from std/io import Path;
from std/string/base64 import encode, decode;

let file := Path.tempfile();
let raw := ~to_binary("ABC");
file.spew(raw);
let roundtrip := file.slurp();
is( typeof roundtrip, "BinaryString", "Path.slurp returns BinaryString", );
is( length roundtrip, length raw, "Binary slurp keeps byte length", );
ok( roundtrip == raw, "Binary slurp roundtrip preserves bytes", );
let utf8 := "héllö";
file.spew_utf8(utf8);
is( file.slurp_utf8(), utf8, "UTF-8 roundtrip keeps text", );
is( typeof file.slurp_utf8(), "String", "UTF-8 slurp returns String", );
is( to_string( to_binary(utf8) ), utf8, "Explicit conversion flow works", );
let b64 := encode(raw);
is( typeof b64, "String", "base64 encode returns String", );
let decoded := decode(b64);
is( typeof decoded, "BinaryString", "base64 decode returns BinaryString", );
ok( decoded == raw, "base64 decode roundtrip keeps binary payload", );
like( exception( function() {
	file.spew("abc");
}
), /TypeException: Path.spew expects BinaryString, got String/, "Path.spew rejects String", );
like( exception( function() {
	file.spew_utf8( to_binary("abc") );
}
), /TypeException: Path.spew_utf8 expects String, got BinaryString/, "Path.spew_utf8 rejects BinaryString",
    );
like( exception( function() {
	encode("abc");
}
), /TypeException: encode expects BinaryString, got String/, "encode rejects String", );
done_testing();