neutralts 1.4.3

Neutral TS template engine is a web template designed to work with any programming language via IPC and natively as library/crate in Rust.
Documentation 
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#[cfg(test)]
mod tests {
    use crate::test_helpers::*;

    #[test]
    fn test_bif_date_timestamp() {
        use std::time::SystemTime;
        fn is_timestamp(value: u64) -> bool {
            SystemTime::UNIX_EPOCH
                .checked_add(std::time::Duration::from_secs(value))
                .is_some()
        }
        let mut template = match crate::Template::new() {
            Ok(tpl) => tpl,
            Err(error) => {
                println!("Error creating Template: {}", error);
                assert!(false);
                return;
            }
        };
        template.merge_schema_str(SCHEMA).unwrap();
        template.set_src_str("{:date; :}");
        let result = template.render().parse::<u64>().unwrap();

        assert!(!template.has_error());
        assert!(is_timestamp(result));
    }

    #[test]
    fn test_bif_date() {
        use chrono::{DateTime, Utc};
        use std::str::FromStr;
        pub fn is_valid_rfc3339(value: &str) -> bool {
            DateTime::<Utc>::from_str(value).is_ok()
        }
        let mut template = match crate::Template::new() {
            Ok(tpl) => tpl,
            Err(error) => {
                println!("Error creating Template: {}", error);
                assert!(false);
                return;
            }
        };
        template.merge_schema_str(SCHEMA).unwrap();
        template.set_src_str("{:date; %Y-%m-%d %H:%M:%S :}");
        let result = template.render();
        assert!(!template.has_error());
        assert!(!is_valid_rfc3339(&result));
    }

    #[test]
    fn test_bif_date_invalid_flag() {
        let mut template = match crate::Template::new() {
            Ok(tpl) => tpl,
            Err(error) => {
                println!("Error creating Template: {}", error);
                assert!(false);
                return;
            }
        };
        template.merge_schema_str(SCHEMA).unwrap();
        template.set_src_str("{:date; {:flg; invalid_flag :} >> %Y-%m-%d %H:%M:%S :}");
        let result = template.render();
        assert!(template.has_error());
        assert_eq!(result, "");
    }
}