stubr 0.2.0-alpha2

Wiremock implemented in Rust
Documentation 
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use std::{convert::TryFrom, ops::{BitXor, Not}};

use itertools::Itertools;
use wiremock::{Match, Request};

use super::{HttpQueryParamsDto, super::matcher::RequestMatcherDto};

pub struct QueryAbsentMatcher(String, bool);

impl Match for QueryAbsentMatcher {
    fn matches(&self, req: &Request) -> bool {
        let is_absent = req.url.query_pairs().all(|(k, _)| k.to_string().ne(&self.0));
        (is_absent.bitxor(self.1)).not()
    }
}

impl From<&HttpQueryParamsDto> for Vec<QueryAbsentMatcher> {
    fn from(queries: &HttpQueryParamsDto) -> Self {
        queries.get_queries().iter()
            .filter(|it| it.is_absent())
            .map(QueryAbsentMatcher::try_from).flatten()
            .collect_vec()
    }
}

impl TryFrom<&RequestMatcherDto> for QueryAbsentMatcher {
    type Error = anyhow::Error;

    fn try_from(query: &RequestMatcherDto) -> anyhow::Result<Self> {
        query.value.as_ref()
            .filter(|_| query.is_absent())
            .map(|it| QueryAbsentMatcher(query.key.to_string(), it.absent.unwrap_or_default()))
            .ok_or_else(|| anyhow::Error::msg("No query absent matcher found"))
    }
}