Crate showcase_calculator 

Showcase Calculator - 100% Test Coverage Demo

This crate demonstrates achieving 100% test coverage across both TUI and WASM platforms using Probar’s unified testing framework.

Probar Testing Principles

• Error prevention: Type-safe operations prevent invalid states at compile time
• Anomaly: Automatic anomaly detection during calculations
• Balanced testing: Balanced test distribution across components
• Visual feedback: History tracking for visibility into operations
• Kaizen: Mutation testing for continuous improvement

Example

use showcase_calculator::prelude::*;

// Create an evaluator
let mut eval = Evaluator::new();

// Evaluate expressions
let result = eval.evaluate_str("42 * (3 + 7)").unwrap();
assert_eq!(result, 420.0);

// With Anomaly validation
let validator = AnomalyValidator::with_max_magnitude(100.0);
let mut safe_eval = Evaluator::with_validator(validator);
assert!(safe_eval.evaluate_str("50 * 3").is_err()); // Exceeds max

Modules

core

Core calculator module with 100% test coverage

driver

Unified Calculator Driver - The Probar Way

prelude

Prelude for convenient imports

tui

TUI Frontend for Calculator

wasm

WASM module - always available for testing (Mock DOM allows testing without actual browser bindings) WASM Frontend for Calculator