Description

Reason for change: In the Cash section (homepage), the "Claim bonus" CTA was shown even when the claimable mUSD bonus was less than $0.01 (e.g. dust after claiming). Small amounts like 0.007401 were also displayed as "0.01" because the formatting logic rounded to 2 decimals instead of showing "< 0.01".

Improvement / solution:

1. MusdAggregatedRow (Cash section): Only show the "Claim bonus" button when the claimable reward is at least $0.01. Introduced MIN_CLAIMABLE_BONUS_USD and isClaimableBonusAboveThreshold(reward); below that threshold the row shows the static "3% bonus" text instead of the CTA.

2. useMerklRewards: Removed use of renderFromTokenMinimalUnit, which only treated values below 0.00001 as "< 0.00001" and rounded everything else (e.g. 0.007401 → "0.01"). The hook now computes the decimal value as unclaimedBaseUnits / 10^tokenDecimals and formats it as "< 0.01" when < 0.01, otherwise toFixed(2). This ensures amounts like 0.007401 display as "< 0.01" and the Cash section threshold logic works correctly.

3. Tests: MusdAggregatedRow tests for the claimable-bonus threshold (hide CTA for "< 0.01", "0.01", "0.005"; show for "0.02"). useMerklRewards tests updated to assert outcomes instead of mocking renderFromTokenMinimalUnit; added case for 7401 with 6 decimals → "< 0.01".

Changelog

CHANGELOG entry: Fixed Cash section showing "Claim bonus" for amounts under $0.01 and corrected display of small claimable amounts as "< 0.01"

Related issues

Fixes: https://consensyssoftware.atlassian.net/browse/MUSD-513

Manual testing steps

Feature: Cash section claim bonus threshold and small-amount display

  Scenario: Claim bonus CTA hidden when claimable amount is below $0.01
    Given I am on the Wallet home screen with the Cash section visible
    And my claimable mUSD bonus is less than $0.01 (e.g. dust after claiming)

    When I view the mUSD row in the Cash section
    Then I should see "3% bonus" (green text) instead of "Claim bonus"
    And I should not see a tappable "Claim bonus" link

  Scenario: Claim bonus CTA shown when claimable amount is at least $0.01
    Given I am on the Wallet home screen with the Cash section visible
    And my claimable mUSD bonus is at least $0.01

    When I view the mUSD row in the Cash section
    Then I should see the "Claim bonus" link
    And tapping it should start the claim flow

Screenshots/Recordings

Before

After

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Pre-merge reviewer checklist

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