[Testing] Zero test coverage for `useStellarWallet` hook — wallet creation, import, and balance refresh

[cybermax4200]

Why this matters now: useStellarWallet.ts handles all wallet operations: Freighter connection, Lobstr deep-link connection, in-app wallet creation, wallet import, balance refresh, and disconnection. It's the primary interface between the app and the Stellar blockchain. A bug here could prevent users from connecting wallets, lose funds on import, or show stale balances.

Problem / What: src/hooks/useStellarWallet.ts (233 lines) — no test file. The hook has five wallet operations, two balance refresh functions, error handling with setIsConnecting/setError state, and integration with stellar.ts, lobstr.ts, and walletVault.ts.

Key Challenges:

• Mock stellar.ts functions: createTestnetAccount, getBalance, getTokenBalance, isValidSecretKey, getPublicKeyFromSecret.
• Mock lobstr.ts: isLobstrInstalled, openLobstrForSigning.
• Mock walletVault.ts: saveInAppSecret, clearInAppSecret.
• Mock useWalletStore Zustand store.
• Test: connectFreighter — success, extension not found, not connected.
• Test: connectLobstr — success, not installed, signing cancelled.
• Test: createInAppWallet — success, network failure.
• Test: importWallet — valid key, invalid key.
• Test: disconnectWallet — clears vault and store.
• Test: refreshBalance — success, network failure.

Acceptance Criteria:

• Test file src/__tests__/useStellarWallet.test.ts with 15+ test cases.
• All five wallet operations covered.
• Error scenarios for each operation.
• Balance refresh with mocked Horizon responses.
• Disconnect clears vault entry.
• All tests pass with npm test.

Relevant files/functions:

• src/hooks/useStellarWallet.ts (entire file)
• src/__tests__/useStellarWallet.test.ts (new)

Out of scope: Real Stellar network interaction tests.

Labels: testing, advanced, wallet

[benzy018]

Hello Maintainer I’d like to work on this issue. I can deliver it according to the requirements and submit a PR within 2 days. Thank you

[Sensei-Victor]

I have experience

[grantfox-oss]

🦊 GrantFox — @benzy018 has been assigned to this issue as part of the Third Campaign campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #68)
2. Your PR will be reviewed by the ecotask-network maintainers

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[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox as part of the Third Campaign campaign!

@benzy018's PR #118 was approved and merged by @cybermax4200.

🏆 @benzy018: You earned 35 FoxPoints for this contribution! Your current tier: Explorer (487 total points). Track your full progress on GrantFox.

👏 Great work, @benzy018! Keep contributing to ecotask-network.