| '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/); |
| |