58 lines
3.3 KiB
JavaScript
58 lines
3.3 KiB
JavaScript
import { Slab } from './slab';
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import BN from 'bn.js';
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const SLAB_BUFFER = Buffer.from(
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'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',
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'hex',
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);
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describe('slab', () => {
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let slab;
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it('parses', () => {
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slab = Slab.decode(SLAB_BUFFER);
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expect(slab).toBeTruthy();
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expect(slab.header.bumpIndex).toBe(9);
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expect(slab.nodes).toHaveLength(9);
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});
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it('finds nodes', () => {
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expect(slab.get(new BN('123456789012345678901234567890')).ownerSlot).toBe(
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1,
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);
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expect(slab.get(new BN('100000000000000000000000000000')).ownerSlot).toBe(
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2,
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);
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expect(slab.get(new BN('200000000000000000000000000000')).ownerSlot).toBe(
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3,
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);
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expect(slab.get(4).ownerSlot).toBe(4);
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});
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it('does not find nonexistant nodes', () => {
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expect(slab.get(0)).toBeNull();
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expect(slab.get(3)).toBeNull();
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expect(slab.get(5)).toBeNull();
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expect(slab.get(6)).toBeNull();
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expect(slab.get(new BN('200000000000000000000000000001'))).toBeNull();
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expect(slab.get(new BN('100000000000000000000000000001'))).toBeNull();
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expect(slab.get(new BN('123456789012345678901234567889'))).toBeNull();
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expect(slab.get(new BN('123456789012345678901234567891'))).toBeNull();
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expect(slab.get(new BN('99999999999999999999999999999'))).toBeNull();
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});
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it('iterates', () => {
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expect(Array.from(slab)).toHaveLength(4);
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});
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it('iterates in order', () => {
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let previous = null;
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for (const item of slab) {
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if (previous) {
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expect(item.key.gt(previous.key)).toBeTruthy();
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}
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previous = item;
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}
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});
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});
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