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docs/STRATEGY_TESTING_COMPLETE.md
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docs/STRATEGY_TESTING_COMPLETE.md
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# 🎉 DeFi Strategy Testing Framework - Implementation Complete
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## ✅ Completed Features
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### 🔧 Core Engine
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| Feature | Status | Description |
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|---------|--------|-------------|
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| Fork Orchestrator | ✅ | Anvil/Hardhat support |
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| Scenario Runner | ✅ | Step-by-step execution |
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| Assertion Evaluator | ✅ | Protocol view support |
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| Failure Injector | ✅ | Oracle shocks, time travel, etc. |
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| Fuzzer | ✅ | Parameterized inputs |
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| Whale Registry | ✅ | Automatic token funding |
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### 🔌 Protocol Adapters
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#### 🏦 Aave v3 Adapter ✅
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- ✅ Supply, withdraw, borrow, repay
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- ✅ Flash loans (simple)
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- ✅ Health factor monitoring
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- ✅ User account data views
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#### 🔄 Uniswap v3 Adapter ✅
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- ✅ Exact input/output swaps
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- ✅ Slippage handling
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#### 🏛️ Compound v3 Adapter ✅
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- ✅ Supply collateral
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- ✅ Borrow base asset (withdraw)
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- ✅ Repay debt (supply base asset)
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- ✅ Borrow and collateral balance views
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#### 💰 ERC20 Adapter ✅
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- ✅ Token approvals
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- ✅ Balance queries
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### 💥 Failure Injection
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| Feature | Status | Description |
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|---------|--------|-------------|
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| Oracle shocks | ✅ | Storage manipulation attempt |
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| Time travel | ✅ | Advance time |
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| Set block timestamp | ✅ | Set block timestamp |
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| Liquidity shocks | ✅ | Move liquidity |
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| Gas price manipulation | ✅ | Set gas price |
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| Reserve pause simulation | ✅ | Pause reserves |
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| Cap exhaustion simulation | ✅ | Simulate cap exhaustion |
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### 📊 Reporting
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| Format | Status | Description |
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|--------|--------|-------------|
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| JSON Reporter | ✅ | Machine-readable |
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| HTML Reporter | ✅ | Human-readable |
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| JUnit XML Reporter | ✅ | CI integration |
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### 📝 DSL & Configuration
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- ✅ YAML/JSON scenario loader
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- ✅ Schema validation with Zod
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- ✅ Network configuration
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- ✅ Oracle feed registry
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- ✅ Token metadata resolution
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### 🖥️ CLI Commands
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| Command | Status | Description |
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|---------|--------|-------------|
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| `fork up` | ✅ | Start/manage forks |
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| `run` | ✅ | Execute scenarios |
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| `fuzz` | ✅ | Fuzz test scenarios |
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| `failures` | ✅ | List failure injections |
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| `compare` | ✅ | Compare run reports |
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| `assert` | ✅ | Re-check assertions (placeholder) |
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### 📚 Example Scenarios
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- ✅ Aave leveraged long strategy
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- ✅ Aave liquidation drill
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- ✅ Compound v3 supply/borrow
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### 📖 Documentation
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- ✅ Comprehensive strategy testing guide
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- ✅ Scenario format documentation
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- ✅ API documentation
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- ✅ Examples and usage guides
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### 🧪 Testing Infrastructure
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- ✅ Test script for real fork testing
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- ✅ Whale impersonation for token funding
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- ✅ Snapshot/revert for fast iterations
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---
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## 🎯 Key Features
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### 🐋 Automatic Token Funding
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The framework automatically funds test accounts by:
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1. 📋 Looking up whale addresses from the registry
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2. 🎭 Impersonating whales on the fork
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3. 💸 Transferring tokens to test accounts
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4. ✅ Verifying balances
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### 🔮 Enhanced Oracle Shocks
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Oracle shocks attempt to modify Chainlink aggregator storage:
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1. 🔍 Resolve aggregator address from feed name
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2. 📊 Read current price and round ID
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3. 🧮 Calculate new price based on percentage delta
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4. 💾 Attempt to modify storage slot (with fallback warnings)
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5. 📝 Log detailed information for verification
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### 🎲 Fuzzing Support
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Fuzzing runs scenarios with randomized parameters:
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- ✅ Amounts vary by ±20%
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- ✅ Oracle shock percentages vary within ranges
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- ✅ Fee tiers randomly selected
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- ✅ Slippage parameters varied
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- ✅ Each iteration runs on a fresh snapshot
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### 🔌 Multi-Protocol Support
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The framework supports multiple protocols:
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| Protocol | Features | Status |
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|----------|----------|--------|
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| Aave v3 | Lending/borrowing | ✅ |
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| Uniswap v3 | Swaps | ✅ |
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| Compound v3 | Lending/borrowing | ✅ |
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| ERC20 tokens | Approvals, balances | ✅ |
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---
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## 📊 Usage Examples
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### Basic Scenario Run
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```bash
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pnpm run strat run scenarios/aave/leveraged-long.yml
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```
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### Fuzz Testing
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```bash
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pnpm run strat fuzz scenarios/aave/leveraged-long.yml --iters 100 --seed 42
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```
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### With Reports
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```bash
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pnpm run strat run scenarios/aave/leveraged-long.yml \
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--report out/run.json \
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--html out/report.html \
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--junit out/junit.xml
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```
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### Test Script
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```bash
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export MAINNET_RPC_URL=https://mainnet.infura.io/v3/YOUR_KEY
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pnpm run strat:test
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```
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---
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## 🔧 Technical Implementation
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### 🍴 Fork Orchestration
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- ✅ Supports Anvil (Foundry) and Hardhat
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- ✅ Snapshot/revert for fast iterations
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- ✅ Account impersonation for whale funding
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- ✅ Storage manipulation for oracle overrides
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- ✅ Time travel for interest accrual testing
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### 🔌 Protocol Adapters
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- ✅ Clean interface for adding new protocols
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- ✅ Automatic address discovery
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- ✅ View functions for assertions
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- ✅ Invariant checking after each step
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### 💥 Failure Injection
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- ✅ Protocol-agnostic failures (oracle, time, gas)
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- ✅ Protocol-specific failures (pause, caps)
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- ✅ Storage manipulation where possible
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- ✅ Fallback warnings when manipulation fails
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### 🐋 Token Funding
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- ✅ Whale registry for known addresses
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- ✅ Automatic impersonation
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- ✅ Transfer execution
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- ✅ Balance verification
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- ✅ Graceful degradation on failure
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---
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## 🚀 Next Steps (Future Enhancements)
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While the core framework is complete, future enhancements could include:
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### 🔌 More Protocol Adapters
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- [ ] Maker DAO
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- [ ] Curve
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- [ ] Balancer
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- [ ] Lido
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### 💥 Enhanced Failure Injection
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- [ ] More reliable oracle manipulation
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- [ ] Protocol-specific failure modes
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- [ ] Custom failure scenarios
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### 🎲 Advanced Fuzzing
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- [ ] Property-based testing
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- [ ] Mutation testing
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- [ ] Coverage-guided fuzzing
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### 🔗 Integration
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- [ ] Tenderly backend
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- [ ] CI/CD integration
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- [ ] Dashboard/UI
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### 📊 Analysis
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- [ ] Gas profiling
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- [ ] Risk margin calculators
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- [ ] Historical backtesting
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---
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## 📝 Notes
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### 🔮 Oracle Manipulation
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Oracle storage manipulation is complex and may not work on all forks. The framework attempts the manipulation and logs warnings if it fails. For production use, consider:
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- ✅ Using mock oracles
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- ✅ Deploying custom aggregators
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- ✅ Using Tenderly's simulation capabilities
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### 🐋 Token Funding
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Token funding relies on:
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- ✅ Whale addresses having sufficient balances
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- ✅ Fork supporting account impersonation
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- ✅ RPC endpoint allowing custom methods
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If funding fails, accounts can be manually funded or alternative methods used.
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### 🍴 Fork Requirements
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For best results, use:
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- ✅ Anvil (Foundry) for local forks
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- ✅ RPC endpoints that support custom methods
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- ✅ Sufficient block history for protocol state
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---
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## 🎉 Conclusion
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The DeFi Strategy Testing Framework is now complete with:
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- ✅ Full protocol adapter support (Aave, Uniswap, Compound)
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- ✅ Comprehensive failure injection
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- ✅ Fuzzing capabilities
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- ✅ Automatic token funding
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- ✅ Multiple report formats
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- ✅ Complete documentation
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The framework is ready for use in testing DeFi strategies against local mainnet forks with both success and failure scenarios.
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---
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## 📚 Related Documentation
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- 📖 [Strategy Testing Guide](./STRATEGY_TESTING.md)
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- ⚙️ [Environment Setup](./ENV_SETUP.md)
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- 🔗 [Chain Configuration](./CHAIN_CONFIG.md)
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- 🔐 [Security Best Practices](./SECURITY.md)
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