qubit-function 0.18.2

Functional programming traits and Box/Rc/Arc adapters for Rust, inspired by Java functional interfaces
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// =============================================================================
//    Copyright (c) 2025 - 2026 Haixing Hu.
//
//    SPDX-License-Identifier: Apache-2.0
//
//    Licensed under the Apache License, Version 2.0.
// =============================================================================

//! Unit tests for the predicate module.

use qubit_function::predicates::Predicate;

#[cfg(test)]
mod closure_predicate_tests {
    use super::Predicate;

    #[test]
    fn test_closure_implements_predicate() {
        let is_positive = |x: &i32| *x > 0;
        assert!(is_positive.test(&5));
        assert!(!is_positive.test(&-3));
        assert!(!is_positive.test(&0));
    }
}