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ac56dc96e3
PR-URL: https://github.com/nodejs/node/pull/27588 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
41 lines
1.2 KiB
JavaScript
41 lines
1.2 KiB
JavaScript
'use strict';
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// Flags: --expose-internals
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require('../common');
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const assert = require('assert');
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const FreeList = require('internal/freelist');
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assert.strictEqual(typeof FreeList, 'function');
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const flist1 = new FreeList('flist1', 3, Object);
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// Allocating when empty, should not change the list size
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const result = flist1.alloc();
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assert.strictEqual(typeof result, 'object');
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assert.strictEqual(flist1.list.length, 0);
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// Exhaust the free list
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assert(flist1.free({ id: 'test1' }));
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assert(flist1.free({ id: 'test2' }));
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assert(flist1.free({ id: 'test3' }));
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// Now it should not return 'true', as max length is exceeded
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assert.strictEqual(flist1.free({ id: 'test4' }), false);
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assert.strictEqual(flist1.free({ id: 'test5' }), false);
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// At this point 'alloc' should just return the stored values
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assert.strictEqual(flist1.alloc().id, 'test3');
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assert.strictEqual(flist1.alloc().id, 'test2');
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assert.strictEqual(flist1.alloc().id, 'test1');
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// Check list has elements
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const flist2 = new FreeList('flist2', 2, Object);
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assert.strictEqual(flist2.hasItems(), false);
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flist2.free({ id: 'test1' });
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assert.strictEqual(flist2.hasItems(), true);
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flist2.alloc();
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assert.strictEqual(flist2.hasItems(), false);
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