Edit File: test-buffer-compare-offset.js
'use strict'; var Buffer = require('../../').Buffer; var assert = require('assert'); var a = Buffer.from([1, 2, 3, 4, 5, 6, 7, 8, 9, 0]); var b = Buffer.from([5, 6, 7, 8, 9, 0, 1, 2, 3, 4]); assert.equal(-1, a.compare(b)); // Equivalent to a.compare(b). assert.equal(-1, a.compare(b, 0)); assert.equal(-1, a.compare(b, '0')); // Equivalent to a.compare(b). assert.equal(-1, a.compare(b, 0, undefined, 0)); // Zero-length targer, return 1 assert.equal(1, a.compare(b, 0, 0, 0)); assert.equal(1, a.compare(b, '0', '0', '0')); // Equivalent to Buffer.compare(a, b.slice(6, 10)) assert.equal(1, a.compare(b, 6, 10)); // Zero-length source, return -1 assert.equal(-1, a.compare(b, 6, 10, 0, 0)); // Equivalent to Buffer.compare(a.slice(4), b.slice(0, 5)) assert.equal(1, a.compare(b, 0, 5, 4)); // Equivalent to Buffer.compare(a.slice(1), b.slice(5)) assert.equal(1, a.compare(b, 5, undefined, 1)); // Equivalent to Buffer.compare(a.slice(2), b.slice(2, 4)) assert.equal(-1, a.compare(b, 2, 4, 2)); // Equivalent to Buffer.compare(a.slice(4), b.slice(0, 7)) assert.equal(-1, a.compare(b, 0, 7, 4)); // Equivalent to Buffer.compare(a.slice(4, 6), b.slice(0, 7)); assert.equal(-1, a.compare(b, 0, 7, 4, 6)); // zero length target assert.equal(1, a.compare(b, 0, null)); // coerces to targetEnd == 5 assert.equal(-1, a.compare(b, 0, {valueOf: () => 5})); // zero length target assert.equal(1, a.compare(b, Infinity, -Infinity)); // zero length target because default for targetEnd <= targetSource assert.equal(1, a.compare(b, '0xff')); var oor = /out of range index/; assert.throws(() => a.compare(b, 0, 100, 0), oor); assert.throws(() => a.compare(b, 0, 1, 0, 100), oor); assert.throws(() => a.compare(b, -1), oor); assert.throws(() => a.compare(b, 0, '0xff'), oor); assert.throws(() => a.compare(b, 0, Infinity), oor); assert.throws(() => a.compare(b, -Infinity, Infinity), oor); assert.throws(() => a.compare(), /Argument must be a Buffer/);
Back to File Manager