{"id":57209,"library":"predicates","title":"Predicates","description":"An implementation of boolean-valued predicate functions for Rust.","status":"active","version":"3.1.4","language":"rust","source_language":null,"source_url":"https://github.com/assert-rs/predicates-rs","tags":["testing","predicate","assertion"],"install":[{"cmd":"# Cargo.toml\n[dependencies]\npredicates = \"3.1.4\"","lang":"toml","label":"Cargo.toml"},{"cmd":"cargo add predicates","lang":"bash","label":"cargo add"}],"dependencies":[],"imports":[{"symbol":"predicate","correct":"use predicates::prelude::*;"}],"quickstart":{"code":"use predicates::prelude::*;\n\nfn main() {\n    let pred = predicate::eq(5);\n    assert!(pred.eval(&5));\n    assert!(!pred.eval(&10));\n}","lang":"rust","description":"Use a predicate to check equality."},"warnings":[],"env_vars":null,"search_vec":"'assert':14 'boolean':6 'boolean-valu':5 'function':9 'implement':3 'predic':1,8,13 'rust':11 'test':12 'valu':7","created_at":"2026-06-16T15:32:56.047789+00:00","updated_at":"2026-06-16T15:32:56.047789+00:00","problems":[],"ecosystem":"crates","meta_description":null,"install_score":null,"quickstart_score":null,"quickstart_tag":null,"pypi_latest":null,"cli_name":null,"cli_version":null,"type":"library","homepage":"https://github.com/assert-rs/predicates-rs","github":"https://github.com/assert-rs/predicates-rs","docs":"https://docs.rs/predicates/","changelog":null,"pypi":null,"npm":null,"openapi_spec":null,"status_page":null,"smithery":null,"categories":["testing"],"base_url":null,"auth_type":null,"provenance":{"verified_status":null,"verified_at":null,"last_verified":"2026-06-16","next_check":"2026-12-13","install_tag":null}}