rsql_formatters 0.19.3

rsql formatters to output rsql results in various formats
Documentation 
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use crate::error::Result;
use crate::formatter::FormatterOptions;
use crate::writers::Output;
use crate::{Results, table};
use async_trait::async_trait;
use tabled::settings::{Style, Theme};

/// A formatter for ASCII tables
#[derive(Debug, Default)]
pub struct Formatter;

#[async_trait]
impl crate::Formatter for Formatter {
    fn identifier(&self) -> &'static str {
        "ascii"
    }

    async fn format(
        &self,
        options: &FormatterOptions,
        results: &mut Results,
        output: &mut Output,
    ) -> Result<()> {
        let theme = Theme::from_style(Style::ascii());
        table::format(theme, options, results, output).await
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    use crate::Formatter;
    use crate::writers::Output;
    use indoc::indoc;
    use rsql_drivers::{MemoryQueryResult, Value};
    use std::time::Duration;

    fn query_result() -> Results {
        let query_result =
            MemoryQueryResult::new(vec!["id".to_string()], vec![vec![Value::I64(12345)]]);

        Results::Query(Box::new(query_result))
    }

    #[tokio::test]
    async fn test_format() -> anyhow::Result<()> {
        let mut results = query_result();
        let output = &mut Output::default();
        let options = FormatterOptions {
            color: false,
            elapsed: Duration::from_nanos(5678),
            ..Default::default()
        };
        let formatter = Formatter;

        formatter.format(&options, &mut results, output).await?;

        let ascii_output = output.to_string().replace("\r\n", "\n");
        let expected = indoc! {r"
            +--------+
            |   id   |
            +--------+
            | 12,345 |
            +--------+
            1 row (5µs 678ns)
        "};
        assert_eq!(ascii_output, expected);
        Ok(())
    }
}