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40 lines
1.1 KiB
40 lines
1.1 KiB
'use strict'; |
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var Buffer = require('../../').Buffer; |
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var assert = require('assert'); |
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var zero = []; |
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var one = [ Buffer.from('asdf') ]; |
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var long = []; |
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for (var i = 0; i < 10; i++) long.push(Buffer.from('asdf')); |
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var flatZero = Buffer.concat(zero); |
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var flatOne = Buffer.concat(one); |
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var flatLong = Buffer.concat(long); |
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var flatLongLen = Buffer.concat(long, 40); |
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assert(flatZero.length === 0); |
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assert(flatOne.toString() === 'asdf'); |
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// A special case where concat used to return the first item, |
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// if the length is one. This check is to make sure that we don't do that. |
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assert(flatOne !== one[0]); |
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assert(flatLong.toString() === (new Array(10 + 1).join('asdf'))); |
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assert(flatLongLen.toString() === (new Array(10 + 1).join('asdf'))); |
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assertWrongList(); |
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assertWrongList(null); |
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assertWrongList(Buffer.from('hello')); |
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assertWrongList([42]); |
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assertWrongList(['hello', 'world']); |
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assertWrongList(['hello', Buffer.from('world')]); |
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function assertWrongList(value) { |
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assert.throws(function() { |
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Buffer.concat(value); |
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}, function(err) { |
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return err instanceof TypeError && |
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err.message === '"list" argument must be an Array of Buffers'; |
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}); |
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} |
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