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63 lines
1.6 KiB
63 lines
1.6 KiB
'use strict'; |
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var Buffer = require('../../').Buffer; |
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var assert = require('assert'); |
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var buffer = require('../../'); |
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var Buffer = buffer.Buffer; |
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var SlowBuffer = buffer.SlowBuffer; |
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var ones = [1, 1, 1, 1]; |
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// should create a Buffer |
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var sb = SlowBuffer(4); |
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assert(sb instanceof Buffer); |
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assert.strictEqual(sb.length, 4); |
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sb.fill(1); |
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for (var [key, value] of sb.entries()) { |
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assert.deepStrictEqual(value, ones[key]); |
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} |
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// underlying ArrayBuffer should have the same length |
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assert.strictEqual(sb.buffer.byteLength, 4); |
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// should work without new |
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sb = SlowBuffer(4); |
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assert(sb instanceof Buffer); |
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assert.strictEqual(sb.length, 4); |
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sb.fill(1); |
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for (var [key, value] of sb.entries()) { |
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assert.deepStrictEqual(value, ones[key]); |
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} |
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// should work with edge cases |
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assert.strictEqual(SlowBuffer(0).length, 0); |
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try { |
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assert.strictEqual( |
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SlowBuffer(buffer.kMaxLength).length, buffer.kMaxLength); |
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} catch (e) { |
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assert.equal(e.message, 'Array buffer allocation failed'); |
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} |
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// should work with number-coercible values |
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assert.strictEqual(SlowBuffer('6').length, 6); |
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assert.strictEqual(SlowBuffer(true).length, 1); |
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// should create zero-length buffer if parameter is not a number |
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assert.strictEqual(SlowBuffer().length, 0); |
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assert.strictEqual(SlowBuffer(NaN).length, 0); |
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assert.strictEqual(SlowBuffer({}).length, 0); |
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assert.strictEqual(SlowBuffer('string').length, 0); |
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// should throw with invalid length |
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assert.throws(function() { |
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SlowBuffer(Infinity); |
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}, 'invalid Buffer length'); |
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assert.throws(function() { |
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SlowBuffer(-1); |
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}, 'invalid Buffer length'); |
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assert.throws(function() { |
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SlowBuffer(buffer.kMaxLength + 1); |
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}, 'invalid Buffer length'); |
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