test: remove toMatchSnapshot and removed snapshot files in notifications tests

[cortisiko]

Description

Removes Jest snapshot coverage for several notification detail components and deletes the associated .snap files.

Updates NotificationBadge, NetworkFeeField, and Header tests to assert specific rendered output instead of toMatchSnapshot() (e.g., presence of key testIDs and title/description text, and explicitly expecting null renders where applicable).

Changelog

CHANGELOG entry:

Related issues

Fixes:

Manual testing steps

Feature: my feature name

  Scenario: user [verb for user action]
    Given [describe expected initial app state]

    When user [verb for user action]
    Then [describe expected outcome]

Screenshots/Recordings

Before

After

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Mobile Coding Standards.
• I've completed the PR template to the best of my ability
• I've included tests if applicable
• I've documented my code using JSDoc format if applicable
• I've applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Performance checks (if applicable)

• I've tested on Android
  • Ideally on a mid-range device; emulator is acceptable
• I've tested with a power user scenario
  • Use these power-user SRPs to import wallets with many accounts and tokens
• I've instrumented key operations with Sentry traces for production performance metrics
  • See trace() for usage and addToken for an example

For performance guidelines and tooling, see the Performance Guide.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

---

Note

Low Risk
Test-only changes that remove snapshot reliance; low product risk but may reduce coverage of UI regressions previously caught by snapshots.

Overview
Removes Jest snapshot files for several notification components and updates their tests to stop using toMatchSnapshot().

Tests now assert specific rendered output instead (e.g., presence of key testIDs/text) and explicitly check null rendering for NetworkFeeField where applicable.

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[github-actions]

🔍 Smart E2E Test Selection

• Selected E2E tags: None (no tests recommended)
• Selected Performance tags: None (no tests recommended)
• Risk Level: low
• AI Confidence: 99%

click to see 🤖 AI reasoning details

E2E Test Selection:
All 10 changed files are unit test files (.test.jsx, .test.tsx) and their associated snapshot files (snapshots/*.snap) for Notification components. The changes are purely unit test refactoring — migrating from snapshot-based assertions (toMatchSnapshot()) to explicit element-based assertions (getByTestId(), getByText(), toBeOnTheScreen()). No application source code was modified, no E2E test infrastructure was touched, no controllers or Engine code was changed, and no shared components that could affect E2E test flows were altered. These changes have zero impact on E2E test behavior and do not require any E2E test tags to be run.

Performance Test Selection:
No application source code was changed — only unit test files and snapshot files were modified. There is no performance impact from refactoring unit test assertions, so no performance tests are needed.

View GitHub Actions results

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

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

See analysis details on SonarQube Cloud