Module simulation 

Game Simulation Testing Framework

This module implements the Monte Carlo simulation testing framework as specified in docs/qa/game-replay-testing.md.

Tiered Testing Strategy

• Tier 1 (Smoke): 1 seed, deterministic, < 10 seconds
• Tier 2 (Regression): 50 seeds, 95% confidence, < 5 minutes
• Tier 3 (Full): 1000 seeds, 99% confidence, < 30 minutes

Structs

FailureReplay

Failure replay artifact for deterministic reproduction

FuzzGenerator

Hostile input generator for boundary testing (fuzzing)

GameStateSnapshot

Game state snapshot for failure replay

MonteCarloConfig

Monte Carlo test configuration

TimestampedInput

Input event for replay

Enums

InvariantViolation

Invariant violation types

TestResult

Test result for Monte Carlo harness

TestTier

Test tier for Monte Carlo simulation

Functions

check_invariants

Check game state invariants