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1708af369b
PR-URL: https://github.com/nodejs/node/pull/18925 Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net>
42 lines
1.1 KiB
JavaScript
42 lines
1.1 KiB
JavaScript
// Flags: --expose_internals
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'use strict';
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require('../common');
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const assert = require('assert');
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const BufferList = require('internal/streams/BufferList');
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const util = require('util');
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// Test empty buffer list.
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const emptyList = new BufferList();
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emptyList.shift();
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assert.deepStrictEqual(emptyList, new BufferList());
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assert.strictEqual(emptyList.join(','), '');
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assert.deepStrictEqual(emptyList.concat(0), Buffer.alloc(0));
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const buf = Buffer.from('foo');
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// Test buffer list with one element.
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const list = new BufferList();
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list.push(buf);
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const copy = list.concat(3);
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assert.notStrictEqual(copy, buf);
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assert.deepStrictEqual(copy, buf);
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assert.strictEqual(list.join(','), 'foo');
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const shifted = list.shift();
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assert.strictEqual(shifted, buf);
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assert.deepStrictEqual(list, new BufferList());
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const tmp = util.inspect.defaultOptions.colors;
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util.inspect.defaultOptions = { colors: true };
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const color = util.inspect.colors[util.inspect.styles.number];
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assert.strictEqual(
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util.inspect(list),
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`BufferList { length: \u001b[${color[0]}m0\u001b[${color[1]}m }`);
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util.inspect.defaultOptions = { colors: tmp };
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