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54 lines
2.1 KiB
TypeScript
54 lines
2.1 KiB
TypeScript
import { describe, it, expect } from 'vitest';
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import { hashMessageIdInt32, GROUP_MESSAGE_EVENT, PRIVATE_MESSAGE_EVENT } from '../src/message-id';
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describe('hashMessageIdInt32', () => {
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it('returns consistent hash for same inputs', () => {
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const id1 = hashMessageIdInt32(100, 12345, GROUP_MESSAGE_EVENT);
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const id2 = hashMessageIdInt32(100, 12345, GROUP_MESSAGE_EVENT);
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expect(id1).toBe(id2);
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});
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it('preserves negative hashes as valid message IDs', () => {
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expect(hashMessageIdInt32(1, 12345, PRIVATE_MESSAGE_EVENT)).toBe(-585543322);
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});
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it('returns non-zero', () => {
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// The function ensures id !== 0 by setting it to 1
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const id = hashMessageIdInt32(0, 0, '');
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expect(id).not.toBe(0);
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});
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it('returns different values for different sequences', () => {
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const id1 = hashMessageIdInt32(1, 12345, GROUP_MESSAGE_EVENT);
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const id2 = hashMessageIdInt32(2, 12345, GROUP_MESSAGE_EVENT);
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expect(id1).not.toBe(id2);
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});
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it('returns different values for different sessions', () => {
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const id1 = hashMessageIdInt32(100, 11111, GROUP_MESSAGE_EVENT);
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const id2 = hashMessageIdInt32(100, 22222, GROUP_MESSAGE_EVENT);
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expect(id1).not.toBe(id2);
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});
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it('returns different values for different event names', () => {
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const id1 = hashMessageIdInt32(100, 12345, GROUP_MESSAGE_EVENT);
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const id2 = hashMessageIdInt32(100, 12345, PRIVATE_MESSAGE_EVENT);
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expect(id1).not.toBe(id2);
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});
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it('returns 32-bit integer', () => {
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const id = hashMessageIdInt32(999999, 123456789, GROUP_MESSAGE_EVENT);
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expect(id).toBeGreaterThanOrEqual(-2147483648);
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expect(id).toBeLessThanOrEqual(2147483647);
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});
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it('handles non-finite inputs gracefully', () => {
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const id1 = hashMessageIdInt32(NaN, 0, 'test');
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const id2 = hashMessageIdInt32(Infinity, 0, 'test');
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expect(typeof id1).toBe('number');
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expect(typeof id2).toBe('number');
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// Both should map to sequence=0
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expect(id1).toBe(id2);
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});
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});
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