MT5-EA-Sniper-Strategy/docs/PERFORMANCE_REGRESSION_FRAMEWORK.md

📊 Performance Regression Testing Framework

🎯 Objective

Establish automated performance regression testing to ensure new features don't degrade EA performance and maintain consistent trading results across development iterations.

📋 Regression Testing Strategy

Core Performance Metrics to Track

Primary Metrics:
- Profit Factor (target: >1.2)
- Win Rate (target: 45-65%)
- Maximum Drawdown (target: <15%)
- Total Net Profit
- Risk per Trade (must be exactly 1.0%)

Secondary Metrics:
- Average R:R Ratio (target: >2.0:1)
- Total Trades Count
- Average Trade Duration
- Largest Loss Trade
- Maximum Consecutive Losses

Pattern Detection Metrics:
- Order Blocks Detected per Day
- Fair Value Gaps Detected per Day
- BOS Events per Day
- Liquidity Sweeps per Day
- Valid Setup Conversion Rate

Baseline Performance Database

File: performance_baseline.json

{
  "baseline_version": "1.0.0",
  "test_date": "2024-09-25",
  "test_period": "2024-07-01 to 2024-09-25",
  "test_symbol": "EURUSD",
  "test_timeframe": "M1",
  "metrics": {
    "profit_factor": 1.45,
    "win_rate": 58.5,
    "max_drawdown_percent": 12.3,
    "total_net_profit": 1250.00,
    "total_trades": 87,
    "average_rr_ratio": 2.15,
    "risk_per_trade": 1.0,
    "pattern_detection": {
      "order_blocks_per_day": 18.5,
      "fvg_per_day": 8.2,
      "bos_per_day": 5.7,
      "sweeps_per_day": 3.4,
      "setup_conversion_rate": 15.2
    }
  },
  "test_configuration": {
    "deposit": 10000,
    "leverage": 100,
    "risk_percent": 1.0,
    "min_rr": 2.0,
    "max_positions": 10
  }
}

🔧 Automated Regression Testing Scripts

Main Regression Test Script

File: run_regression_test.ps1

param(
    [string]$EAName = "SniperEA",
    [string]$TestSymbol = "EURUSD",
    [string]$StartDate = "2024-07-01",
    [string]$EndDate = "2024-09-25",
    [string]$BaselineFile = "performance_baseline.json"
)

Write-Host "=== Performance Regression Test ===" -ForegroundColor Green
Write-Host "EA: $EAName" -ForegroundColor Yellow
Write-Host "Symbol: $TestSymbol" -ForegroundColor Yellow
Write-Host "Period: $StartDate to $EndDate" -ForegroundColor Yellow

# Load baseline performance
if (Test-Path $BaselineFile) {
    $Baseline = Get-Content $BaselineFile | ConvertFrom-Json
    Write-Host "Baseline loaded: Version $($Baseline.baseline_version)" -ForegroundColor Cyan
} else {
    Write-Host "WARNING: No baseline file found. This will become the new baseline." -ForegroundColor Yellow
    $CreateBaseline = $true
}

# Strategy Tester automation would go here
# For now, we'll simulate the process and provide manual steps

Write-Host "`n=== Manual Strategy Tester Steps ===" -ForegroundColor Magenta
Write-Host "1. Open Strategy Tester (Ctrl+R)" -ForegroundColor White
Write-Host "2. Configure settings:" -ForegroundColor White
Write-Host "   - Expert: $EAName" -ForegroundColor Gray
Write-Host "   - Symbol: $TestSymbol" -ForegroundColor Gray
Write-Host "   - Period: M1" -ForegroundColor Gray
Write-Host "   - Dates: $StartDate to $EndDate" -ForegroundColor Gray
Write-Host "   - Model: Every tick" -ForegroundColor Gray
Write-Host "3. Click Start and wait for completion" -ForegroundColor White
Write-Host "4. Run this script again with results" -ForegroundColor White

# Prompt for manual results input
Write-Host "`n=== Enter Test Results ===" -ForegroundColor Green
$Results = @{}
$Results.profit_factor = Read-Host "Profit Factor"
$Results.win_rate = Read-Host "Win Rate (%)"
$Results.max_drawdown_percent = Read-Host "Maximum Drawdown (%)"
$Results.total_net_profit = Read-Host "Total Net Profit"
$Results.total_trades = Read-Host "Total Trades"

# Calculate performance comparison
if (-not $CreateBaseline) {
    Write-Host "`n=== Performance Comparison ===" -ForegroundColor Green
    
    $ProfitFactorChange = [math]::Round((([double]$Results.profit_factor - $Baseline.metrics.profit_factor) / $Baseline.metrics.profit_factor) * 100, 2)
    $WinRateChange = [math]::Round([double]$Results.win_rate - $Baseline.metrics.win_rate, 2)
    $DrawdownChange = [math]::Round([double]$Results.max_drawdown_percent - $Baseline.metrics.max_drawdown_percent, 2)
    
    Write-Host "Profit Factor: $($Results.profit_factor) ($($ProfitFactorChange)%)" -ForegroundColor $(if($ProfitFactorChange -ge 0){"Green"}else{"Red"})
    Write-Host "Win Rate: $($Results.win_rate)% ($($WinRateChange)%)" -ForegroundColor $(if($WinRateChange -ge 0){"Green"}else{"Red"})
    Write-Host "Max Drawdown: $($Results.max_drawdown_percent)% ($($DrawdownChange)%)" -ForegroundColor $(if($DrawdownChange -le 0){"Green"}else{"Red"})
    
    # Regression analysis
    $RegressionIssues = @()
    
    if ($ProfitFactorChange -lt -10) {
        $RegressionIssues += "Profit Factor decreased by more than 10%"
    }
    if ($WinRateChange -lt -5) {
        $RegressionIssues += "Win Rate decreased by more than 5%"
    }
    if ($DrawdownChange -gt 3) {
        $RegressionIssues += "Maximum Drawdown increased by more than 3%"
    }
    
    if ($RegressionIssues.Count -eq 0) {
        Write-Host "`n✅ REGRESSION TEST PASSED" -ForegroundColor Green
        Write-Host "Performance maintained or improved" -ForegroundColor Green
    } else {
        Write-Host "`n❌ REGRESSION TEST FAILED" -ForegroundColor Red
        Write-Host "Issues detected:" -ForegroundColor Red
        foreach ($Issue in $RegressionIssues) {
            Write-Host "  - $Issue" -ForegroundColor Yellow
        }
    }
}

# Save results
$TestResults = @{
    test_date = Get-Date -Format "yyyy-MM-dd HH:mm:ss"
    ea_version = "current"
    test_period = "$StartDate to $EndDate"
    test_symbol = $TestSymbol
    metrics = $Results
    regression_status = if($RegressionIssues.Count -eq 0){"PASS"}else{"FAIL"}
    issues = $RegressionIssues
}

$ResultsFile = "regression_test_$(Get-Date -Format 'yyyyMMdd_HHmmss').json"
$TestResults | ConvertTo-Json -Depth 3 | Out-File $ResultsFile
Write-Host "`nResults saved to: $ResultsFile" -ForegroundColor Cyan

Performance Tracking Database

File: performance_tracker.ps1

# Performance History Tracker
param(
    [string]$Action = "add", # add, view, compare
    [string]$Version = "",
    [string]$ResultsFile = ""
)

$DatabaseFile = "performance_history.json"

# Initialize database if it doesn't exist
if (-not (Test-Path $DatabaseFile)) {
    $Database = @{
        created = Get-Date -Format "yyyy-MM-dd HH:mm:ss"
        tests = @()
    }
    $Database | ConvertTo-Json -Depth 4 | Out-File $DatabaseFile
}

$Database = Get-Content $DatabaseFile | ConvertFrom-Json

switch ($Action) {
    "add" {
        if ($ResultsFile -and (Test-Path $ResultsFile)) {
            $TestResult = Get-Content $ResultsFile | ConvertFrom-Json
            $TestResult | Add-Member -NotePropertyName "version" -NotePropertyValue $Version
            
            $Database.tests += $TestResult
            $Database | ConvertTo-Json -Depth 4 | Out-File $DatabaseFile
            
            Write-Host "Test result added to performance database" -ForegroundColor Green
        } else {
            Write-Host "Results file not found: $ResultsFile" -ForegroundColor Red
        }
    }
    
    "view" {
        Write-Host "=== Performance History ===" -ForegroundColor Green
        foreach ($Test in $Database.tests) {
            Write-Host "`nVersion: $($Test.version) - $($Test.test_date)" -ForegroundColor Yellow
            Write-Host "Profit Factor: $($Test.metrics.profit_factor)" -ForegroundColor Cyan
            Write-Host "Win Rate: $($Test.metrics.win_rate)%" -ForegroundColor Cyan
            Write-Host "Max Drawdown: $($Test.metrics.max_drawdown_percent)%" -ForegroundColor Cyan
            Write-Host "Status: $($Test.regression_status)" -ForegroundColor $(if($Test.regression_status -eq "PASS"){"Green"}else{"Red"})
        }
    }
    
    "compare" {
        if ($Database.tests.Count -ge 2) {
            $Latest = $Database.tests[-1]
            $Previous = $Database.tests[-2]
            
            Write-Host "=== Performance Comparison ===" -ForegroundColor Green
            Write-Host "Latest: $($Latest.version) vs Previous: $($Previous.version)" -ForegroundColor Yellow
            
            $PFChange = [math]::Round((([double]$Latest.metrics.profit_factor - [double]$Previous.metrics.profit_factor) / [double]$Previous.metrics.profit_factor) * 100, 2)
            $WRChange = [math]::Round([double]$Latest.metrics.win_rate - [double]$Previous.metrics.win_rate, 2)
            
            Write-Host "Profit Factor: $($Latest.metrics.profit_factor) ($($PFChange)%)" -ForegroundColor $(if($PFChange -ge 0){"Green"}else{"Red"})
            Write-Host "Win Rate: $($Latest.metrics.win_rate)% ($($WRChange)%)" -ForegroundColor $(if($WRChange -ge 0){"Green"}else{"Red"})
        } else {
            Write-Host "Need at least 2 test results for comparison" -ForegroundColor Yellow
        }
    }
}

📊 Regression Test Execution Workflow

Pre-Development Regression Test

# Before starting new feature development
.\run_regression_test.ps1 -EAName "SniperEA" -TestSymbol "EURUSD"
.\performance_tracker.ps1 -Action "add" -Version "pre-feature-X" -ResultsFile "regression_test_*.json"

Post-Development Regression Test

# After completing feature development
.\run_regression_test.ps1 -EAName "SniperEA" -TestSymbol "EURUSD"
.\performance_tracker.ps1 -Action "add" -Version "post-feature-X" -ResultsFile "regression_test_*.json"
.\performance_tracker.ps1 -Action "compare"

Multi-Symbol Regression Testing

File: multi_symbol_regression.ps1

$TestSymbols = @("EURUSD", "GBPUSD", "XAUUSD")
$Results = @()

foreach ($Symbol in $TestSymbols) {
    Write-Host "Testing $Symbol..." -ForegroundColor Yellow
    
    # Manual testing prompt for each symbol
    Write-Host "Configure Strategy Tester for $Symbol and press Enter when complete..."
    Read-Host
    
    # Collect results
    $SymbolResults = @{}
    $SymbolResults.symbol = $Symbol
    $SymbolResults.profit_factor = Read-Host "Profit Factor for $Symbol"
    $SymbolResults.win_rate = Read-Host "Win Rate for $Symbol"
    $SymbolResults.max_drawdown = Read-Host "Max Drawdown for $Symbol"
    
    $Results += $SymbolResults
}

# Analyze multi-symbol performance
Write-Host "`n=== Multi-Symbol Results ===" -ForegroundColor Green
foreach ($Result in $Results) {
    Write-Host "$($Result.symbol): PF=$($Result.profit_factor), WR=$($Result.win_rate)%, DD=$($Result.max_drawdown)%" -ForegroundColor Cyan
}

# Save multi-symbol results
$MultiSymbolResults = @{
    test_date = Get-Date -Format "yyyy-MM-dd HH:mm:ss"
    test_type = "multi_symbol_regression"
    results = $Results
}

$MultiSymbolFile = "multi_symbol_regression_$(Get-Date -Format 'yyyyMMdd_HHmmss').json"
$MultiSymbolResults | ConvertTo-Json -Depth 3 | Out-File $MultiSymbolFile
Write-Host "Multi-symbol results saved to: $MultiSymbolFile" -ForegroundColor Green

🎯 Integration with Development Workflow

Regression Testing Schedule

Daily: Quick regression test on EURUSD (30 minutes)
Weekly: Multi-symbol regression test (2-3 hours)
Before Major Releases: Comprehensive regression suite (4-6 hours)
After Bug Fixes: Targeted regression test (1 hour)

Automated Alerts

# Add to regression test script
if ($RegressionIssues.Count -gt 0) {
    # Create alert file
    $Alert = @{
        timestamp = Get-Date -Format "yyyy-MM-dd HH:mm:ss"
        severity = "HIGH"
        message = "Performance regression detected"
        issues = $RegressionIssues
    }
    
    $Alert | ConvertTo-Json | Out-File "REGRESSION_ALERT.json"
    Write-Host "🚨 REGRESSION ALERT CREATED" -ForegroundColor Red
}

📋 Regression Testing Checklist

Before Each Feature Development:

• Run baseline regression test
• Document current performance metrics
• Save results to performance database
• Verify all metrics within acceptable ranges

After Each Feature Implementation:

• Run regression test with new feature
• Compare results with baseline
• Identify any performance degradation
• Document changes and improvements

Weekly Performance Review:

• Run multi-symbol regression tests
• Analyze performance trends
• Identify optimization opportunities
• Update baseline if consistently improved

---

Next Action: Set up the regression testing framework and run your first baseline test using the Strategy Tester you currently have open. This will establish your performance benchmark for all future development.