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add utils.hash test.

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This commit is contained in:
Christopher Jeffrey 2016-01-04 15:46:05 -08:00
parent 10fce032b7
commit 6da3fbac3a
2 changed files with 38 additions and 16 deletions
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6
lib/bcoin/utils.js
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@ -832,8 +832,8 @@ utils.now = function now() {
};
utils.hash = function hash(obj, enc) {
if (!obj)
return obj;
if (obj == null)
throw new Error('Cannot get hash of null');
if (typeof obj === 'string')
return enc === 'hex' ? obj : utils.toArray(obj, 'hex');
@ -850,5 +850,5 @@ utils.hash = function hash(obj, enc) {
if (obj._hash)
return hash(obj._hash, enc);
return obj;
throw new Error('Cannot get hash of object');
};

48
test/utils-test.js
View File

@ -1,44 +1,66 @@
var assert = require('assert');
var bn = require('bn.js');
var bcoin = require('../');
var utils = bcoin.utils;
describe('Utils', function() {
it('should encode/decode base58', function() {
var arr = [ 0, 0, 0, 0xde, 0xad, 0xbe, 0xef ];
var b = bcoin.utils.toBase58(arr);
var b = utils.toBase58(arr);
assert.equal(b, '1116h8cQN');
assert.deepEqual(bcoin.utils.fromBase58(b), arr);
assert.deepEqual(utils.fromBase58(b), arr);
});
it('should translate bits to target', function() {
var bits = 0x1900896c;
var hash = bcoin.utils.toArray(
var hash = utils.toArray(
'672b3f1bb11a994267ea4171069ba0aa4448a840f38e8f340000000000000000',
'hex'
);
var target = bcoin.utils.bitsToTarget(bits);
assert(bcoin.utils.testTarget(target, hash));
var target = utils.fromCompact(bits);
assert(utils.testTarget(target, hash));
});
it('should convert satoshi to btc', function() {
var btc = bcoin.utils.toBTC(new bn(5460));
var btc = utils.toBTC(new bn(5460));
assert.equal(btc, '0.0000546');
btc = bcoin.utils.toBTC(new bn(54678).mul(new bn(1000000)));
btc = utils.toBTC(new bn(54678).mul(new bn(1000000)));
assert.equal(btc, '546.78');
btc = bcoin.utils.toBTC(new bn(5460).mul(new bn(10000000)));
btc = utils.toBTC(new bn(5460).mul(new bn(10000000)));
assert.equal(btc, '546.0');
btc = bcoin.utils.toBTC(new bn(5460).mul(new bn(10000000)).toArray());
btc = utils.toBTC(new bn(5460).mul(new bn(10000000)).toArray());
assert.equal(btc, '546.0');
btc = bcoin.utils.toBTC(new bn(5460).mul(new bn(10000000)).toString('hex'));
btc = utils.toBTC(new bn(5460).mul(new bn(10000000)).toString('hex'));
assert.equal(btc, '546.0');
});
it('should convert btc to satoshi', function() {
var btc = bcoin.utils.fromBTC('0.0000546');
var btc = utils.fromBTC('0.0000546');
assert(btc.cmp(new bn(5460)) === 0);
btc = bcoin.utils.fromBTC('546.78');
btc = utils.fromBTC('546.78');
assert(btc.cmp(new bn(54678).mul(new bn(1000000))) === 0);
btc = bcoin.utils.fromBTC('546.0');
btc = utils.fromBTC('546.0');
assert(btc.cmp(new bn(5460).mul(new bn(10000000))) === 0);
});
it('should convert objects to hashes', function() {
var b1 = '00';
var b2 = [0];
var b3 = { hash: function(enc) { return enc === 'hex' ? '00' : [0]; } };
var b4 = { hash: '00' };
var b5 = { _hash: '00' };
var b6 = { hash: [0] };
var b7 = { _hash: [0] };
[b1, b2, b3, b4, b5, b6, b7].forEach(function(b, i) {
utils.assert.equal(utils.hash(b, 'hex'), '00');
utils.assert(utils.isEqual(utils.hash(b), [0]));
});
var thrown = true;
try {
utils.hash(1, 'hex');
} catch (e) {
thrown = true;
}
assert.equal(thrown, true);
});
});