docs/TESTING_AND_DEPLOYMENT.md

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+# QuantEngine - Testing & Deployment Guide
+
+**Status**: Phase 6 (Testing) & Phase 8 (Deployment) - Configuration & Documentation
+
+---
+
+## Phase 6: Testing & Optimization
+
+### 6.1 Unit Testing (bUnit)
+
+#### Setup
+```bash
+cd src/dotnet
+dotnet add package bunit
+dotnet add package bunit.web
+```
+
+#### Example Test: Dashboard Component
+```csharp
+// Tests/Pages/DashboardTests.cs
+[TestFixture]
+public class DashboardTests
+{
+    [Test]
+    public void Dashboard_Renders_KPICards()
+    {
+        // Arrange
+        var cut = new TestContext().RenderComponent<Dashboard>();
+
+        // Act & Assert
+        var kpiCards = cut.FindAll(".mud-card-kpi");
+        kpiCards.Count.Should().Be(4);
+    }
+
+    [Test]
+    public async Task Dashboard_LoadsAssets_OnInitialize()
+    {
+        // Arrange
+        var httpClient = new HttpClientStub();
+        var cut = new TestContext();
+        cut.Services.AddScoped(sp => httpClient);
+        var dashboard = cut.RenderComponent<Dashboard>();
+
+        // Act
+        await Task.Delay(100); // Wait for async init
+
+        // Assert
+        httpClient.Requests.Should().Contain(r => r.Url.Contains("/api/portfolio"));
+    }
+}
+```
+
+#### Test Coverage Targets
+- Dashboard rendering (4 KPI cards)
+- Users list (search, filter, pagination)
+- Portfolio components (asset table, categories)
+- Form fields (all input types)
+- Dialogs (confirm/cancel actions)
+
+#### Run Tests
+```bash
+dotnet test src/dotnet/QuantEngine.Web.Client.Tests
+dotnet test src/dotnet/QuantEngine.Web.Tests
+```
+
+### 6.2 Integration Tests
+
+#### Database Test Setup
+```csharp
+[TestFixture]
+public class RepositoryIntegrationTests
+{
+    private IDbConnectionFactory _connectionFactory;
+    private ICollectionRepository _repository;
+
+    [OneTimeSetUp]
+    public void OneTimeSetUp()
+    {
+        _connectionFactory = new DbConnectionFactory(
+            "Host=localhost;Database=quantengine_test;..."
+        );
+    }
+
+    [Test]
+    public async Task SaveCollectionRun_Persists_ToDatabase()
+    {
+        // Arrange
+        var run = new CollectionRun { RunId = Guid.NewGuid().ToString(), ... };
+
+        // Act
+        await _repository.SaveRunAsync(run);
+
+        // Assert
+        var retrieved = await _repository.GetRunAsync(run.RunId);
+        retrieved.Should().NotBeNull();
+        retrieved.RunId.Should().Be(run.RunId);
+    }
+}
+```
+
+### 6.3 Performance Optimization
+
+#### Bundle Size Optimization
+```bash
+# Check bundle sizes
+dotnet publish -c Release --output ./publish
+du -sh publish/wwwroot/_framework/*
+```
+
+**Targets**:
+- dotnet.wasm: < 2MB
+- app.js: < 500KB
+- Total: < 5MB
+
+#### Loading Time Optimization
+```csharp
+// Use lazy loading for pages
+[lazy: Dashboard]
+@rendermode InteractiveWebAssembly
+
+// Pre-load critical resources
+<link rel="prefetch" href="/_framework/QuantEngine.Web.Client.wasm" />
+```
+
+### 6.4 Accessibility Testing (WCAG 2.1 AA)
+
+#### Automated Checks
+```bash
+dotnet add package Deque.AxeCore.Selenium
+```
+
+#### Manual Checklist
+- [ ] Keyboard navigation (Tab, Enter, Escape)
+- [ ] Screen reader support (NVDA, JAWS)
+- [ ] Color contrast (4.5:1 for text)
+- [ ] Form labels properly associated
+- [ ] Error messages clear and descriptive
+- [ ] Focus indicators visible
+- [ ] No automatic content changes
+
+---
+
+## Phase 8: Deployment & Operations
+
+### 8.1 Production Build
+
+#### Release Build Configuration
+```bash
+# Build Release configuration
+cd src/dotnet
+dotnet build -c Release
+
+# Publish for deployment
+dotnet publish -c Release -o ./publish/quantengine
+
+# Size check
+ls -lh publish/quantengine/
+```
+
+#### Build Output
+- `publish/quantengine/` - Complete deployment package
+- `publish/quantengine/wwwroot/` - Static assets
+- `publish/quantengine/QuantEngine.Web.exe` - Server executable
+- `publish/quantengine/appsettings.production.json` - Configuration
+
+### 8.2 Docker Deployment
+
+#### Dockerfile
+```dockerfile
+FROM mcr.microsoft.com/dotnet/aspnet:9.0 AS base
+WORKDIR /app
+EXPOSE 80 443
+
+FROM mcr.microsoft.com/dotnet/sdk:9.0 AS build
+WORKDIR /src
+COPY ["src/dotnet/QuantEngine.Web/QuantEngine.Web.csproj", "QuantEngine.Web/"]
+RUN dotnet restore "QuantEngine.Web/QuantEngine.Web.csproj"
+
+COPY src/dotnet/ .
+RUN dotnet build "QuantEngine.Web/QuantEngine.Web.csproj" -c Release -o /app/build
+
+FROM build AS publish
+RUN dotnet publish "QuantEngine.Web/QuantEngine.Web.csproj" -c Release -o /app/publish
+
+FROM base AS final
+WORKDIR /app
+COPY --from=publish /app/publish .
+ENTRYPOINT ["dotnet", "QuantEngine.Web.dll"]
+```
+
+#### Docker Build & Run
+```bash
+# Build image
+docker build -t quantengine:latest .
+
+# Run container
+docker run -d \
+  -p 5265:80 \
+  -e ConnectionStrings__DefaultConnection="Host=db;Database=quantenginedb;..." \
+  -e ASPNETCORE_ENVIRONMENT=Production \
+  quantengine:latest
+
+# Check logs
+docker logs -f <container_id>
+```
+
+### 8.3 Nginx Reverse Proxy
+
+#### Nginx Configuration
+```nginx
+upstream quantengine {
+    server 127.0.0.1:5000;
+    server 127.0.0.1:5001;
+}
+
+server {
+    listen 80;
+    server_name quantengine.example.com;
+
+    # Redirect to HTTPS
+    return 301 https://$server_name$request_uri;
+}
+
+server {
+    listen 443 ssl http2;
+    server_name quantengine.example.com;
+
+    ssl_certificate /etc/ssl/certs/cert.pem;
+    ssl_certificate_key /etc/ssl/private/key.pem;
+
+    location / {
+        proxy_pass http://quantengine;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        
+        # WebSocket support
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection "upgrade";
+    }
+
+    location ~* \.(js|css|wasm|svg|woff2)$ {
+        expires 30d;
+        add_header Cache-Control "public, immutable";
+    }
+}
+```
+
+### 8.4 Environment Configuration
+
+#### appsettings.production.json
+```json
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "System": "Warning",
+      "Microsoft": "Warning"
+    }
+  },
+  "ConnectionStrings": {
+    "DefaultConnection": "Host=prod-db-host;Database=quantenginedb;Username=quantengine_app;Password=***;SslMode=Require;",
+    "HangfireConnection": "Host=prod-db-host;Database=quantengine_hangfire;..."
+  },
+  "AdminSettings": {
+    "Username": "admin",
+    "Password": "***"
+  },
+  "Kestrel": {
+    "Endpoints": {
+      "Http": {
+        "Url": "http://0.0.0.0:5000"
+      }
+    }
+  }
+}
+```
+
+### 8.5 Deployment Checklist
+
+#### Pre-Deployment
+- [ ] All tests pass (`dotnet test`)
+- [ ] Code reviewed and approved
+- [ ] Security vulnerabilities scanned (`dotnet package-search`)
+- [ ] Database migrations tested
+- [ ] Hangfire schedules configured
+- [ ] Secrets properly managed (not in code)
+- [ ] Environment variables documented
+
+#### Deployment Steps
+```bash
+# 1. Create backup
+pg_dump -h prod-db-host -U quantengine_app quantenginedb > backup-$(date +%Y%m%d).sql
+
+# 2. Deploy application
+docker pull quantengine:latest
+docker stop quantengine
+docker run -d --name quantengine -p 5000:80 quantengine:latest
+
+# 3. Health check
+curl https://quantengine.example.com/health
+
+# 4. Monitor logs
+docker logs -f quantengine
+
+# 5. Verify features
+- [ ] Login works
+- [ ] Dashboard loads
+- [ ] Data collection runs
+- [ ] Hangfire jobs scheduled
+```
+
+#### Post-Deployment
+- [ ] Monitor error logs (Serilog, Telegram alerts)
+- [ ] Check Hangfire dashboard
+- [ ] Verify scheduled jobs running
+- [ ] Monitor database performance
+- [ ] Check API response times (< 200ms)
+
+### 8.6 Monitoring & Observability
+
+#### Health Checks
+```csharp
+app.MapHealthChecks("/health", new HealthCheckOptions
+{
+    Predicate = _ => true,
+    ResponseWriter = WriteResponse
+});
+
+// Add health checks
+builder.Services.AddHealthChecks()
+    .AddDbContextCheck<QuantEngineDbContext>()
+    .AddCheck("Database", () => HealthCheckResult.Healthy())
+    .AddCheck("KIS API", () => CheckKisApiAsync());
+```
+
+#### Logging (Serilog)
+```csharp
+Log.Information("Collection run completed: {RunId}, {Count} items", runId, itemCount);
+Log.Warning("API rate limit warning: {Remaining}", remaining);
+Log.Error(ex, "Collection failed: {RunId}", runId);
+```
+
+#### Monitoring Metrics
+- Request rate (requests/sec)
+- Error rate (errors/requests)
+- Database query time (p50, p95, p99)
+- Hangfire job success rate
+- API response time by endpoint
+
+### 8.7 Rollback Plan
+
+#### If Deployment Fails
+```bash
+# 1. Stop current deployment
+docker stop quantengine
+
+# 2. Restore previous version
+docker run -d --name quantengine -p 5000:80 quantengine:v1.0.0
+
+# 3. Restore database from backup
+psql -h prod-db-host -U quantengine_app -d quantenginedb < backup-20260705.sql
+
+# 4. Verify health
+curl https://quantengine.example.com/health
+```
+
+---
+
+## Deployment Timeline
+
+| Milestone | Target Date | Status |
+|-----------|-------------|--------|
+| Phase 6: Tests | 2026-07-06 | 📋 |
+| Phase 7: Hangfire | 2026-07-05 | ✅ |
+| Phase 8: Deploy | 2026-07-07 | 📋 |
+| Production Release | 2026-07-10 | 📅 |
+
+---
+
+## Success Criteria
+
+**Phase 6**:
+- [ ] 80%+ test coverage
+- [ ] All component tests passing
+- [ ] WCAG AA compliance verified
+- [ ] Bundle size < 5MB
+
+**Phase 8**:
+- [ ] Docker image builds successfully
+- [ ] Production config validated
+- [ ] Database backups automated
+- [ ] Rollback plan documented
+- [ ] Monitoring alerts configured
+- [ ] 99.5% uptime target established
+
+---
+
+**Next**: Execute deployment pipeline and monitor production metrics.