[Kulraj69]

Description

TestMatchmakingService creates two users with Elo 1200 and 1250 (both within the default ±200 match range). StartMatchmaking launches findMatch in a goroutine, which can pair and remove both users before the pool-size assertion runs. When that happens the test fails with "Expected 2 users in pool after both started matchmaking, got 0".

Fix: use Elo 2000 for the second user (range 1800–2200), which does not overlap with user1's 1000–1400 range. The matcher leaves both in the pool, so the pool-size assertions are deterministic.

Testing

• go test ./services/ -run TestMatchmakingService -count=20 — 20/20 passes
• go test ./... — full backend suite passes
• go vet ./... — clean

AI Disclosure

I used an AI assistant to draft the fix and run the tests. I reviewed every line and the change matches the plan discussed in the issue.

Fixes #760

Summary by CodeRabbit

• Tests
  • Updated a matchmaking test scenario to use a player with a higher rating. No user-facing behavior changes are included.

[coderabbitai]

No actionable comments were generated in the recent review.

Recent review info

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• Layers: Organization UI
• Review profile: CHILL
• Plan: Advanced
• Run ID: 9ae45df6-3864-4904-8081-97f880cf2cc8

Commits

Reviewing files that changed from the base of the PR and between 95b24b5 and bc58a3f.

Files selected for processing: 1

• backend/services/matchmaking_test.go

Included review availability: This review used your included allowance. Your plan provides up to 2 included reviews per hour; 1 remain after this review.

Walkthrough

The matchmaking test changes Bob’s Elo rating from 1250 to 2000.

Changes: Matchmaking test

Layer / File(s)	Summary
Test matchmaking pool assertions backend/services/matchmaking_test.go	The test now adds Bob with an Elo rating of 2000 instead of 1250.

Priority: Low

Estimated code review effort: 1 (Trivial) | ~2 minutes

Change: Bug fix · Severity of issue fixed: Low

Suggested reviewers: rixitgithub

Merge Risk: Minimal · up to bc58a

No actionable merge-blocking risk remains.

Pre-merge checks: 4 · 1

Failed checks: 1 warning

Check name	Status	Explanation	Resolution
Docstring Coverage		Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentat…	Write docstrings for the functions missing them to satisfy the coverage threshold.

Passed checks: 4 passed

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title clearly and concisely describes the main change: using non-overlapping Elo values in TestMatchmakingService to prevent intermittent test failures.
Linked Issues check		Issue #760 requires a deterministic test fix without changing matchmaking logic. The diff changes Bob's Elo from 1250 to 2000 in TestMatchmakingService. This removes the overlap with user1's default…
Out of Scope Changes check		The pull request changes one test input in backend/services/matchmaking_test.go. The change directly addresses the timing-dependent failure in issue #760. No unrelated production or test changes are…

Full details: Linked Issues check

Explanation

Issue #760 requires a deterministic test fix without changing matchmaking logic. The diff changes Bob's Elo from 1250 to 2000 in TestMatchmakingService. This removes the overlap with user1's default ±200 range and supports the existing pool-size assertions. No matchmaking implementation changed.

Full details: Out of Scope Changes check

Explanation

The pull request changes one test input in backend/services/matchmaking_test.go. The change directly addresses the timing-dependent failure in issue #760. No unrelated production or test changes are present.

Full details: Docstring Coverage

Explanation

Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentation-only edits and deletions within surviving functions are included; unchanged diff context and fully deleted functions are excluded. Analyzed 1 functions across 1 files.

Resolution

Write docstrings for the functions missing them to satisfy the coverage threshold.

• Autofix · Keep fixing CodeRabbit findings and required CI, and resolving merge conflicts

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