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// =============================================================================
// Copyright (c) 2025 - 2026 Haixing Hu.
//
// SPDX-License-Identifier: Apache-2.0
//
// Licensed under the Apache License, Version 2.0.
// =============================================================================
// ============================================================================
// BoxTransformer Tests - Immutable, single ownership
// ============================================================================
#[cfg(test)]
mod arc_conditional_tests {
use qubit_function::{
ArcTransformer,
Transformer,
};
#[test]
fn test_when_or_else() {
let double_fn = |x: i32| x * 2;
let negate_fn = |x: i32| -x;
let result = ArcTransformer::new(double_fn)
.when(|x: &i32| *x > 0)
.or_else(negate_fn);
assert_eq!(result.apply(5), 10);
assert_eq!(result.apply(-5), 5);
}
#[test]
fn test_when_or_else_with_closure() {
let double_fn = |x: i32| x * 2;
let result = ArcTransformer::new(double_fn)
.when(|x: &i32| *x > 0)
.or_else(|x: i32| -x);
assert_eq!(result.apply(5), 10);
assert_eq!(result.apply(-5), 5);
assert_eq!(result.apply(0), 0);
}
#[test]
fn test_conditional_or_else() {
let double_fn = |x: i32| x * 2;
let result = ArcTransformer::new(double_fn)
.when(|x: &i32| *x > 0)
.or_else(|x: i32| -x);
assert_eq!(result.apply(5), 10);
assert_eq!(result.apply(-5), 5);
}
}