ripr 0.9.0

Find static mutation-exposure gaps before expensive mutation testing
Documentation 
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use crate::domain::{OracleKind, OracleStrength};

use super::patterns::{
    is_broad_error_assertion, is_clear_exact_custom_assertion_helper, is_custom_assertion_helper,
    is_duplicative_equality_assertion, is_exact_error_variant_assertion, is_exact_value_assertion,
    is_mock_expectation_line, is_side_effect_observer_assertion, is_snapshot_assertion,
    is_whole_object_equality_assertion,
};

#[derive(Clone, Debug, PartialEq, Eq)]
pub(crate) struct OracleClassification {
    pub(crate) kind: OracleKind,
    pub(crate) strength: OracleStrength,
}

pub(crate) fn classify_assertion(line: &str) -> OracleClassification {
    if is_exact_error_variant_assertion(line) {
        OracleClassification {
            kind: OracleKind::ExactErrorVariant,
            strength: OracleStrength::Strong,
        }
    } else if is_broad_error_assertion(line) {
        OracleClassification {
            kind: OracleKind::BroadError,
            strength: OracleStrength::Weak,
        }
    } else if is_duplicative_equality_assertion(line) {
        OracleClassification {
            kind: OracleKind::RelationalCheck,
            strength: OracleStrength::Weak,
        }
    } else if is_whole_object_equality_assertion(line) {
        OracleClassification {
            kind: OracleKind::WholeObjectEquality,
            strength: OracleStrength::Strong,
        }
    } else if is_exact_value_assertion(line) {
        OracleClassification {
            kind: OracleKind::ExactValue,
            strength: OracleStrength::Strong,
        }
    } else if is_snapshot_assertion(line) {
        OracleClassification {
            kind: OracleKind::Snapshot,
            strength: OracleStrength::Medium,
        }
    } else if line.contains(".unwrap(")
        || line.contains(".expect(")
        || line.contains("is_ok")
        || line.contains("is_some")
        || line.contains("is_none")
    {
        OracleClassification {
            kind: OracleKind::SmokeOnly,
            strength: OracleStrength::Smoke,
        }
    } else if is_mock_expectation_line(line) || is_side_effect_observer_assertion(line) {
        OracleClassification {
            kind: OracleKind::MockExpectation,
            strength: OracleStrength::Medium,
        }
    } else if is_clear_exact_custom_assertion_helper(line) {
        OracleClassification {
            kind: OracleKind::ExactValue,
            strength: OracleStrength::Strong,
        }
    } else if is_custom_assertion_helper(line) {
        OracleClassification {
            kind: OracleKind::Unknown,
            strength: OracleStrength::Unknown,
        }
    } else if line.contains("> 0")
        || line.contains('<')
        || line.contains('>')
        || line.contains("is_empty")
        || line.contains("contains")
        || line.contains("assert!")
    {
        OracleClassification {
            kind: OracleKind::RelationalCheck,
            strength: OracleStrength::Weak,
        }
    } else {
        OracleClassification {
            kind: OracleKind::Unknown,
            strength: OracleStrength::Unknown,
        }
    }
}