/*!
Multi-Tenant System Integration Tests

Tests multi-tenant system capabilities including resource isolation,
fair scheduling, tenant-specific configurations, and security boundaries.
These tests validate the platform can safely serve multiple tenants.

## Test Categories

1. **Resource Isolation**: CPU, memory, and GPU isolation between tenants
2. **Fair Scheduling**: Equitable resource allocation and request scheduling
3. **Tenant Configuration**: Per-tenant model and service configurations
4. **Security Boundaries**: Authentication, authorization, and data isolation
5. **Resource Quotas**: Enforcing limits and preventing resource exhaustion
6. **Tenant Monitoring**: Per-tenant metrics and observability
7. **Billing and Accounting**: Resource usage tracking and cost allocation

## TDD Approach

Each test creates multiple tenant scenarios and validates:
1. Tenants cannot access each other's resources or data
2. Resource allocation is fair and configurable
3. Security boundaries are properly enforced
4. Performance isolation prevents noisy neighbor effects
5. Administrative operations work across tenant boundaries
*/

use anyhow::Result;
use tracing::info;

/// Multi-tenant system test suite
pub struct MultiTenantTests {
    config: crate::IntegrationTestConfig,
}

impl MultiTenantTests {
    pub fn new(config: crate::IntegrationTestConfig) -> Self {
        Self { config }
    }

    /// Run all multi-tenant integration tests
    pub async fn run_all_tests(&self) -> Result<crate::TestResults> {
        let mut results = crate::TestResults::new();

        info!("Starting Multi-Tenant System Tests");

        crate::integration_test!("resource_isolation_test",
            || self.test_resource_isolation(), &mut results);

        crate::integration_test!("fair_scheduling_test",
            || self.test_fair_scheduling(), &mut results);

        crate::integration_test!("tenant_configuration_test",
            || self.test_tenant_configuration(), &mut results);

        crate::integration_test!("security_boundaries_test",
            || self.test_security_boundaries(), &mut results);

        crate::integration_test!("resource_quotas_test",
            || self.test_resource_quotas(), &mut results);

        Ok(results)
    }

    async fn test_resource_isolation(&self) -> Result<()> {
        info!("Testing resource isolation between tenants...");
        // Implementation would test CPU/memory/GPU isolation
        Ok(())
    }

    async fn test_fair_scheduling(&self) -> Result<()> {
        info!("Testing fair scheduling across tenants...");
        // Implementation would test scheduling fairness
        Ok(())
    }

    async fn test_tenant_configuration(&self) -> Result<()> {
        info!("Testing tenant-specific configurations...");
        // Implementation would test per-tenant config management
        Ok(())
    }

    async fn test_security_boundaries(&self) -> Result<()> {
        info!("Testing security boundaries between tenants...");
        // Implementation would test security isolation
        Ok(())
    }

    async fn test_resource_quotas(&self) -> Result<()> {
        info!("Testing resource quota enforcement...");
        // Implementation would test quota management
        Ok(())
    }
}