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js-crc32
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node 4.x Buffer.from fix

This commit is contained in:
SheetJS 2018-07-07 21:02:33 -04:00
parent 238dc0e647
commit 58bae10e50
1 changed files with 12 additions and 4 deletions
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16
test.js
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@ -20,6 +20,14 @@ function msieversion()
return parseInt (ua.substring (msie+5, ua.indexOf (".", msie )));
}
var Buffer_from = function(){};
if(typeof Buffer !== 'undefined') {
var nbfs = !Buffer.from;
if(!nbfs) try { Buffer.from("foo", "utf8"); } catch(e) { nbfs = true; }
Buffer_from = nbfs ? function(buf, enc) { return (enc) ? new Buffer(buf, enc) : new Buffer(buf); } : Buffer.from.bind(Buffer);
}
describe('crc32 table', function() {
it('should match fixed table', function() {
var overflow = 0;
@ -40,7 +48,7 @@ describe('crc32 bits', function() {
it(msg, function() {
if(i[2] === 1) assert.equal(X.bstr(i[0]), L);
assert.equal(X.str(i[0]), i[1]|0);
if(typeof Buffer !== 'undefined') assert.equal(X.buf(new Buffer(i[0])), L);
if(typeof Buffer !== 'undefined') assert.equal(X.buf(Buffer_from(i[0])), L);
var len = i[0].length, step = len < 20000 ? 1 : len < 50000 ? Math.ceil(len / 20000) : Math.ceil(len / 2000);
for(var x = 0; x < len; x += step) {
if(i[0].charCodeAt(x) >= 0xD800 && i[0].charCodeAt(x) < 0xE000) continue;
@ -51,7 +59,7 @@ describe('crc32 bits', function() {
var strcrc = X.str(i[0].substr(x), X.str(i[0].substr(0, x)));
assert.equal(strcrc, i[1]|0);
if(typeof Buffer !== 'undefined') {
var buf = new Buffer(i[0]);
var buf = Buffer_from(i[0]);
var bufcrc = X.buf(buf.slice(x), X.buf(buf.slice(0, x)));
assert.equal(bufcrc, L);
}
@ -74,9 +82,9 @@ if(typeof require !== 'undefined') describe("unicode", function() {
var cc = corpus[ucidx], dd = X.str(c);
assert.equal(dd, cc, ":" + ucidx + ":" + c + ":" + cc + ":" + dd);
if(typeof Buffer !== 'undefined') {
var ee = X.buf(new Buffer(c, "utf8"));
var ee = X.buf(Buffer_from(c, "utf8"));
assert.equal(ee, cc, ":" + ucidx + ":" + c + ":" + cc + ":" + ee);
var ff = X.bstr(String.fromCharCode.apply(null, new Buffer(c, "utf8")));
var ff = X.bstr(String.fromCharCode.apply(null, Buffer_from(c, "utf8")));
assert.equal(ff, cc, ":" + ucidx + ":" + c + ":" + cc + ":" + ff);
}
};