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Added LiteSVM tests for writing, updating, and validating favorites on-chain.
Updated dependencies (@solana/web3.js → ^1.98.4, added litesvm).
Updated TypeScript config (es2020, nodenext).
Renamed test files and cleaned up deprecated/obsolete code.

Test Coverage:
Both test suites cover the same scenarios:

  • Writes our favorites to the blockchain
  • Updates the favorites
  • Rejects transactions from unauthorized signers

All tests pass:
✅ LiteSVM: Favorites — 3 passing
✅ Anchor: Favorites — 3 passing

cc: @Perelyn-sama @jacobcreech

- Implement tests for writing, updating, and validating favorite data on the blockchain.
- Ensure unauthorized transactions are rejected correctly.
- Utilize LiteSVM for transaction simulation and account state verification.
- Upgrade @solana/web3.js from ^1.95.2 to ^1.98.4.
- Add litesvm dependency with version ^0.4.0.
- Update lockfile to reflect changes in dependencies and their versions.
- Change target and module to es2020 and nodenext respectively.
- Update lib to include es2020 for improved compatibility.
- Update test descriptions for clarity.
- Replace deprecated error handling with assertions for unauthorized signer checks.
- Simplify transaction execution and data validation for favorites.
- Ensure consistent usage of BN for big number handling.
- Delete @solana-developers/helpers and related references from package.json and pnpm-lock.yaml.
- Remove favorites-bankrun.test.ts and system-errors.ts files as they are no longer needed.
- Clean up the project structure by eliminating obsolete code and dependencies.
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@Perelyn-sama Perelyn-sama merged commit 6a712e5 into solana-developers:main Dec 30, 2025
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2 participants