recaptcha 0.5.0

recaptcha response verification
Documentation 
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use std::collections::HashSet;
use crate::error::Code;

#[derive(Debug, Deserialize)]
pub struct RecaptchaResponse {
    pub success: bool,
    #[serde(rename="error-codes")]
    pub error_codes: Option<HashSet<Code>>
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn decoding_test() {
        use serde_json::json;
        use crate::error::Code::*;

        let response = json!({
            "success": true,
            "error-codes": ["missing-input-secret", "foo"],
        });
        let response: RecaptchaResponse = serde_json::from_value(response).unwrap();

        assert!(response.success);
        assert!(response.error_codes.is_some());

        let errors = response.error_codes.unwrap();
        assert!(errors.len() == 2);
        assert!(errors.contains(&MissingSecret));
        assert!(errors.contains(&Unknown("foo".to_string())));
    }
}