Zero-value entries-read argument omitted from XGROUP tokensData & SerializationMediumPreparing

00:00

Incident Dossier

Zero-value entries-read argument omitted from XGROUP tokens

A caller passes the ENTRIESREAD option set to 0 to XGROUP CREATE or XGROUP SETID. The argument builder should emit the ENTRIESREAD keyword and a '0' token. Instead, when the option value is exactly 0, the trailing ENTRIESREAD and '0' tokens are missing from the produced array.

Initial failing signalENTRIESREAD 0 drops trailing tokensExpected behavior: For both XGROUP CREATE (key, group, '$') and XGROUP SETID (key, group, '0') called with { ENTRIESREAD: 0 }, the returned token array ends with 'ENTRIESREAD', '0'. · actual behavior: For both commands, when called with { ENTRIESREAD: 0 }, the returned token array omits the trailing 'ENTRIESREAD', '0' pair.

Progress

1Reproduce the bugRun checks

2Edit the fixOpen

3Pass checksOpen

4Submit fixOpen

Reproduction Steps

Install dependencies in the repo snapshot.
Run the visible regression test command.
Trace from the failing test into the changed runtime source files.

Focus Mode

Start

packages/client/lib/commands/XGROUP_CREATE.spec.ts

Likely area

packages/client/lib/commands/XGROUP_CREATE.ts
packages/client/lib/commands/XGROUP_SETID.ts

Repo scale

1476 files
Real redis/node-redis repo snapshot

Challenge Coach

Hints reveal broad direction first, then narrow toward the suspect path without showing hidden tests or exact solution code.

TopicData & Serialization

DifficultyMedium

Est. time30 min

Workspacepreparing

Explorer

Loading files

Evidence Map

Failing signal loaded from challenge API
Workspace files loaded from workspace API
Results rendered only after API run/submit

Autosaved

workspace

Outputread-onlyready$ prepare workspace

Preparing workspace

Initial failing signalBaseline

ENTRIESREAD 0 drops trailing tokens

Expected behaviorFor both XGROUP CREATE (key, group, '$') and XGROUP SETID (key, group, '0') called with { ENTRIESREAD: 0 }, the returned token array ends with 'ENTRIESREAD', '0'.

Actual behaviorFor both commands, when called with { ENTRIESREAD: 0 }, the returned token array omits the trailing 'ENTRIESREAD', '0' pair.

Related checkInstall dependencies

Check suite

2 visible

Install dependenciesPrepares this workspace.

not run

Visible OSS regression testRuns the visible regression check.

not run

Hidden validationRuns only on submit; details stay server-side.

locked

Submit readinessincomplete

Workspace ready
Run the checks at least once
Changes saved (no syntax/save errors)

Complete the steps above, then Submit Fix becomes available in the top bar.