Fix Heartbeat Test Runs before 9am UTC

[matmanna]

ts should make the tests for #1138 pass

[greptile-apps]

Greptile Summary

This PR fixes a flaky test that failed when run before 9am UTC. The daily_streaks_for_users query filters heartbeats with .where(time: start_date..Time.current), so heartbeats created at beginning_of_day + 9.hours were excluded from results when the wall-clock time was earlier than 9am. Wrapping the test body in travel_to(Time.utc(2026, 1, 1, 12, 0, 0)) pins time to noon UTC, ensuring the 9am heartbeats always fall within the query window.

Confidence Score: 5/5

Safe to merge — test-only change with a correct, targeted fix for a timing-dependent flake.

No production code is changed. The fix correctly pins time to noon UTC using the standard Rails travel_to helper, ensuring heartbeats at 9am UTC always fall within the daily_streaks_for_users query window (start_date..Time.current). No P0 or P1 issues found.

No files require special attention.

Important Files Changed

Filename	Overview
test/models/heartbeat_test.rb	Wraps time-sensitive test in travel_to(noon UTC) to prevent failures when tests run before 9am UTC

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[Test runs at real clock time T] --> B{Is T before 9am UTC?}
    B -- Yes --> C[beginning_of_day + 9h is a future timestamp]
    C --> D[daily_streaks_for_users filters time up to Time.current]
    D --> E[Heartbeat excluded from query window]
    E --> F[streak = 0 — assertion fails]
    B -- No --> G[beginning_of_day + 9h is a past timestamp]
    G --> H[Heartbeat included in query window]
    H --> I[streak = 1 — test passes]
    J[Fix: travel_to noon UTC] --> G

Loading

_{Reviews (1): Last reviewed commit: "fix: heatrbeat test 9am issue" | Re-trigger Greptile}