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Warnings — informational, address before merging:

• Description section is empty. Describe what changed and why.
• Related issues section is empty. Add Fixes: #123 / Closes: <URL> / Refs: <Jira key>, or write a short rationale after the colon.
• Manual testing steps still contain template content (the Gherkin example title or a [...] placeholder). Replace with real steps, or write N/A — <reason>.
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🧪 Flaky unit test detection

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Historical failure rate is a hint, not proof — review each suggestion in context. See the flaky-test-detection skill for the full pattern reference and manual audit workflow.

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AI-detected flaky patterns

app/components/Views/TrendingView/tabs/NowTab.test.tsx

• J3 — Missing jest.clearAllMocks() / jest.resetAllMocks() in beforeEach (high)
  • jest.clearAllMocks() is called inside the arrangeMocks() helper rather than in a beforeEach hook. Every describe block delegates to arrangeMocks() (via arrangePerpsMoversMocks(), arrangeCryptoMoversMocks(), etc.), so in the current test suite this works. However, this is a fragile pattern: any future test that is added without calling arrangeMocks() — or that calls it after some side-effectful setup — will inherit stale call counts and mock implementations from the previous test. Jest runs tests in file order by default, but --randomize or parallel sharding can expose the ordering dependency. The fix is to move jest.clearAllMocks() (and the default mock implementations) into a top-level beforeEach so isolation is guaranteed unconditionally.
  • Suggested fix in app/components/Views/TrendingView/tabs/NowTab.test.tsx:248:

    -const arrangeMocks = () => {
    -  jest.clearAllMocks();
    -  mockUseIsFocused.mockReturnValue(true);
    -
    -  const mockUseSelector = useSelector as jest.MockedFunction<
    -    typeof useSelector
    -  >;
    -  const mockUseTokensFeed = useTokensFeed as jest.MockedFunction<
    -    typeof useTokensFeed
    -  >;
    -
    -  mockUseSelector.mockImplementation(
    -    createMockSelectorImpl({
    -      perpsEnabled: false,
    -      predictEnabled: false,
    -      whatsHappeningEnabled: false,
    -    }),
    -  );
    -  // ... (rest of mock setup)
    -};
    +// Add a top-level beforeEach that always clears mocks and restores defaults.
    +// Keep arrangeMocks() for the per-describe overrides, but remove the
    +// jest.clearAllMocks() call from inside it.
    +
    +beforeEach(() => {
    +  jest.clearAllMocks();
    +  // Restore module-level mock defaults so every test starts from a known state.
    +  mockUseIsFocused.mockReturnValue(true);
    +  mockSubscribeToSymbols.mockReturnValue(jest.fn());
    +  mockWhatsHappeningRefresh.mockReset();
    +  mockUseWhatsHappening.mockReturnValue({
    +    items: [{ id: 'trend-0' }],
    +    isLoading: false,
    +    error: null,
    +    refresh: mockWhatsHappeningRefresh,
    +  });
    +});
    +
    +// Inside arrangeMocks(), remove the jest.clearAllMocks() line:
    +const arrangeMocks = () => {
    +  // jest.clearAllMocks(); ← remove this line
    +  const mockUseSelector = useSelector as jest.MockedFunction<typeof useSelector>;
    +  // ... rest of per-describe setup unchanged
    +};

• J9 — Module-level mutable let bindings not reset in beforeEach (high)
  • All module-level mock functions (mockNavigate, mockUseIsFocused, mockSubscribeToSymbols, mockWhatsHappeningRefresh, mockUseWhatsHappening, mockNavigateToPerpsMarketList, mockPredictionsCarouselSection) are declared at module scope and their call history / implementations are only reset inside arrangeMocks(), which is called manually per test. If a test is skipped, fails early, or is added without calling arrangeMocks(), the accumulated call counts and overridden implementations from the previous test bleed into the next one. For example, mockUseIsFocused is set to false in one 'live movers subscription gating' test and is never explicitly restored to true unless arrangeMocks() is called next. Moving the reset to beforeEach eliminates this ordering dependency.
  • Suggested fix in app/components/Views/TrendingView/tabs/NowTab.test.tsx:5:

    -const mockNavigate = jest.fn();
    -const mockUseIsFocused = jest.fn(() => true);
    -
    -// ...
    -
    -const mockSubscribeToSymbols = jest.fn(() => jest.fn());
    -
    -// ...
    -
    -const mockWhatsHappeningRefresh = jest.fn();
    -const mockUseWhatsHappening = jest.fn(() => ({
    -  items: [] as { id: string }[],
    -  isLoading: false,
    -  error: null as string | null,
    -  refresh: mockWhatsHappeningRefresh,
    -}));
    -
    -// ...
    -
    -const mockNavigateToPerpsMarketList = jest.fn();
    -const mockPredictionsCarouselSection = jest.fn(/* ... */);
    +// At the top level of the describe block (or file), add:
    +beforeEach(() => {
    +  jest.clearAllMocks();
    +  // Re-apply default implementations for every module-level mock:
    +  mockUseIsFocused.mockReturnValue(true);
    +  mockSubscribeToSymbols.mockImplementation(() => jest.fn());
    +  mockUsePerpsFeed.mockReturnValue({
    +    data: [],
    +    isLoading: false,
    +    refetch: jest.fn(),
    +    defaultSortOptionId: 'priceChange' as const,
    +  });
    +  mockUseWhatsHappening.mockReturnValue({
    +    items: [],
    +    isLoading: false,
    +    error: null,
    +    refresh: mockWhatsHappeningRefresh,
    +  });
    +});

This check is informational only and does not block merging.

Codecov Report

❌ Patch coverage is 94.53125% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 84.38%. Comparing base (9aad058) to head (daa855c).
⚠️ Report is 51 commits behind head on main.

@@            Coverage Diff             @@
##             main   #33150      +/-   ##
==========================================
+ Coverage   84.31%   84.38%   +0.06%     
==========================================
  Files        6080     6129      +49     
  Lines      162378   163629    +1251     
  Branches    39577    39903     +326     
==========================================
+ Hits       136905   138074    +1169     
- Misses      16021    16046      +25     
- Partials     9452     9509      +57     

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🔍 Smart E2E Test Selection

• Selected E2E tags: SmokeWalletPlatform, SmokePerps, SmokePredictions, SmokeConfirmations
• Selected Performance tags: @PerformancePreps
• Risk Level: medium
• AI Confidence: 85%

View GitHub Actions results

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
97.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

⚡ Performance Test Results

ℹ️ Performance test results are currently non-blocking and will not block this PR.

✅ All tests passed · 2 tests · 1 device

Branch: fix/oversubscription-perps-top-movers · Build: Normal · Commit: d3a166c · View full run