This is a program that validates your progress on the "Solana Lending Program Development" challenge using the Mollusk test harness.

The tester has been enhanced with the Mollusk framework, a lightweight test harness for Solana programs. This provides:

• Fast Execution: Direct SVM instruction execution without full validator runtime
• Precise Control: Explicit account management and instruction validation
• Better Testing: Comprehensive checks for account state, lamports, data, and more

The tester is organized into the following modules:

• src/main.rs - Entry point that initializes the tester
• src/definition.rs - Test case definitions
• src/stages/ - Test implementations organized by stage
• src/mollusk/ - Mollusk integration module
  • mod.rs - Main Mollusk management
  • program_loader.rs - Program loading utilities
  • test_context.rs - Test context for state management
• src/helpers.rs - Helper functions for testing

• Following environment variables:
  • STACKCLASS_REPOSITORY_DIR - root of the user's code submission
  • STACKCLASS_TEST_CASES_JSON - test cases in JSON format

• A binary named your_program.sh that executes the program.
• A file named stackclass.yml, with the following values: debug.

cargo build --release

The tester will automatically load and test the user's lending program using Mollusk. Ensure the program is built before running tests:

cd <user-repo>
anchor build

1. be1 - Environment Setup
2. rs2 - Rust Basics
3. sm3 - Solana Model
4. at4 - Anchor Try
5. st5 - SPL Token Basics
6. cp6 - Basic Deposit
7. tt7 - Basic Withdraw

• pa1 - PDA Concept
• pa2 - PDA Derivation
• pa3 - Bump Seeds
• pa4 - PDA Practice

• tr1 - Treasury Intro
• tr2 - Treasury Creation
• tr3 - Treasury Security
• tr4 - Treasury Practice

• as1 - Bank Account
• as2 - User Account
• as3 - Account Space
• as4 - Account Practice

• lc1 - Borrow Basics
• lc2 - Repay Basics
• lc3 - LTV Calculation
• lc4 - Core Practice

• or1 - Oracle Concept
• or2 - Pyth Integration
• or3 - Price Fetching
• or4 - Oracle Practice

• li1 - Health Factor
• li2 - Liquidation Trigger
• li3 - Liquidation Process
• li4 - Liquidation Bonus
• li5 - Liquidation Practice

• in1 - Interest Basics
• in2 - Accrued Interest
• in3 - Rate Models
• in4 - Interest Practice

• se1 - Common Vulnerabilities
• se2 - Reentrancy Protection
• se3 - Account Validation
• se4 - Security Practice

The tester uses Mollusk for efficient program testing:

use crate::mollusk::{create_lending_mollusk, LendingTestContext};

// Create Mollusk instance
let mollusk = create_lending_mollusk(&repo_dir)?;
let mut context = LendingTestContext::new(mollusk)?;

// Create accounts and execute instructions
let user = context.create_funded_account(1_000_000_000);
let instruction = create_lending_instruction(data, accounts);
context.execute_instruction(&instruction)?;

See LICENSE file for details.