flagsmith-flag-engine 0.6.0

This project is the rust clone of flagsmith flag engine: https://github.com/Flagsmith/flagsmith-engine
Documentation 
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use flagsmith_flag_engine::identities;
use flagsmith_flag_engine::segments;
use rstest::*;
mod fixtures;
use fixtures::identity;

#[rstest]
#[case(fixtures::empty_segment(), vec![], false)]
#[case(fixtures::segment_single_condition(), vec![], false)]
#[case(fixtures::segment_single_condition(), vec![fixtures::trait_1()], true)]
#[case(fixtures::segment_multiple_conditions_all(), vec![], false)]
#[case(fixtures::segment_multiple_conditions_all(), vec![fixtures::trait_1()], false)]
#[case(fixtures::segment_multiple_conditions_all(), vec![fixtures::trait_1(), fixtures::trait_2()], true)]
#[case(fixtures::segment_multiple_conditions_any(), vec![], false)]
#[case(fixtures::segment_multiple_conditions_any(), vec![fixtures::trait_1()], true)]
#[case(fixtures::segment_multiple_conditions_any(), vec![fixtures::trait_2()], true)]
#[case(fixtures::segment_multiple_conditions_any(), vec![fixtures::trait_1(), fixtures::trait_2()], true)]
#[case(fixtures::segment_nested_rules_all(), vec![], false)]
#[case(fixtures::segment_nested_rules_all(), vec![fixtures::trait_1()], false)]
#[case(fixtures::segment_nested_rules_all(), vec![fixtures::trait_2()], false)]
#[case(fixtures::segment_nested_rules_all(), vec![fixtures::trait_1(), fixtures::trait_2()], false)]
#[case(fixtures::segment_nested_rules_all(), vec![fixtures::trait_1(), fixtures::trait_2(), fixtures::trait_3()], true)]
#[case(fixtures::segment_conditions_and_nested_rules(), vec![], false)]
#[case(fixtures::segment_conditions_and_nested_rules(), vec![fixtures::trait_1()], false)]
#[case(fixtures::segment_conditions_and_nested_rules(), vec![fixtures::trait_2()], false)]
#[case(fixtures::segment_conditions_and_nested_rules(), vec![fixtures::trait_1(), fixtures::trait_2()], false)]
#[case(fixtures::segment_conditions_and_nested_rules(), vec![fixtures::trait_1(), fixtures::trait_2(), fixtures::trait_3()], true)]
fn test_evaluate_identity_in_segment(
    #[case] segment: segments::Segment,
    #[case] identity_traits: Vec<identities::Trait>,
    #[case] expected_result: bool,
    mut identity: identities::Identity,
) {
    identity.identity_traits = identity_traits;
    assert_eq!(
        segments::evaluator::evaluate_identity_in_segment(&identity, &segment, None),
        expected_result
    );
}