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Testing Redis / Cache Context

The core SyntropyLog package does not include Redis or a Redis mock. There is no BeaconRedisMock or built-in Redis client.

How to test​

  • Context and correlation — Use createTestHelper() from syntropylog/testing. The mock’s getContextManager() gives you an in-memory context manager; test your app’s context and correlation behavior without Redis.
  • Redis or cache logic — Use your own Redis mock, in-memory store, or integration test against a real Redis. SyntropyLog only provides logging and context; it does not provide or mock Redis.

Example: testing context behavior​

import { createTestHelper } from 'syntropylog/testing';

const testHelper = createTestHelper(vi.fn);

it('should propagate correlation ID in flow', async () => {
  const ctx = testHelper.mockSyntropyLog.getContextManager();
  await ctx.run(async () => {
    ctx.set('userId', 'user-123');
    const logger = testHelper.mockSyntropyLog.getLogger('test');
    logger.info('Step done');
    expect(ctx.getCorrelationId()).toBeDefined();
  });
});

For services that talk to Redis, inject a test double (e.g. an in-memory Map or a Redis mock from another library) and keep using createTestHelper() for the SyntropyLog side.

See also​