See how calculator outputs are checked.
Identity, boundary and cross-reference tests applied to Casino Calculated’s interactive tools.
Identity tests
Simple formulas must reproduce hand-calculable examples: zero action produces zero loss; a 2% edge on $100 action produces $2 expected loss; fair odds invert probability correctly.
Boundary tests
Inputs at zero, payout transitions, rule changes and strategy thresholds are checked explicitly. Invalid negative quantities are constrained or explained.
Cross-reference tests
Selected results are compared with independently published analysis only when rules and denominators match.
Interface tests
Every input requires a visible label; results update after valid changes; calculators remain usable with a keyboard and narrow viewport.
Release discipline
A calculator change triggers formula fixtures, link validation, metadata checks and a changelog entry.
Evidence record
The exact rules, wager schedule and stated strategy.
Expected value is the probability-weighted sum of net outcomes.
Examples illustrate method; posted casino rules control.