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#!/usr/bin/env node
"use strict";
var tape = require('blue-tape');
var Zmodem = Object.assign(
{},
require('../src/zcrc')
);
var zcrc = Zmodem.CRC;
tape('crc16', function(t) {
t.deepEqual(
zcrc.crc16( [ 0x0d, 0x0a ] ),
[ 0xd7, 0x16 ],
'crc16 - first test'
);
t.deepEqual(
zcrc.crc16( [ 0x11, 0x17, 0, 0, 0 ] ),
[ 0xe4, 0x81 ],
'crc16 - second test'
);
t.end();
} );
tape('verify16', function(t) {
t.doesNotThrow(
() => zcrc.verify16( [ 0x0d, 0x0a ], [ 0xd7, 0x16 ] ),
'verify16 - no throw on good'
);
var err;
try { zcrc.verify16( [ 0x0d, 0x0a ], [ 0xd7, 16 ] ) }
catch(e) { err = e };
t.ok(
/215,16.*215,22/.test(err.message),
'verify16 - throw on bad (message)'
);
t.ok(
err instanceof Zmodem.Error,
'verify16 - typed error'
);
t.ok(
err.type,
'verify16 - error type'
);
t.end();
} );
//----------------------------------------------------------------------
// The crc32 logic is unused for now, but some misbehaving ZMODEM
// implementation might send CRC32 regardless of that we don’t
// advertise it.
//----------------------------------------------------------------------
tape('crc32', function(t) {
const tests = [
[ [ 4, 0, 0, 0, 0 ], [ 0xdd, 0x51, 0xa2, 0x33 ] ],
[ [ 11, 17, 0, 0, 0 ], [ 0xf6, 0xf6, 0x57, 0x59 ] ],
[ [ 3, 0, 0, 0, 0 ], [ 205, 141, 130, 129 ] ],
];
// } [ 3, 0, 0, 0, 0 ] [ 205, 141, 131, -127 ]
//2172816845
//crc32 [ 3, 0, 0, 0, 0 ] -2122150451
tests.forEach( (cur_t) => {
let [ input, output ] = cur_t;
t.deepEqual(
zcrc.crc32(input),
output,
"crc32: " + input.join(", ")
);
} );
t.end();
} );
tape('verify32', function(t) {
t.doesNotThrow(
() => zcrc.verify32( [ 4, 0, 0, 0, 0 ], [ 0xdd, 0x51, 0xa2, 0x33 ] ),
'verify32 - no throw on good'
);
var err;
try { zcrc.verify32( [ 4, 0, 0, 0, 0 ], [ 1,2,3,4 ] ) }
catch(e) { err = e };
t.ok(
/1,2,3,4.*221,81,162,51/.test(err.message),
'verify32 - throw on bad (message)'
);
t.ok(
err instanceof Zmodem.Error,
'verify32 - typed error'
);
t.ok(
err.type,
'verify32 - error type'
);
t.end();
} );
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