"No tests found"

[tomhampshire]

I'm getting a "No tests found" error. Tests run fine using vim-test, cargo test and cargo nextest run. See below for the example lib.rs that fails to run:

use std::env;
use std::error::Error;
use std::fs;

pub struct Config {
    pub filename: String,
    pub query: String,
    pub ignore_case: bool,
}
impl Config {
    pub fn new(args: &[String]) -> Result<Config, &'static str> {
        if args.len() < 3 {
            return Err("Not enough arguments");
        }
        let query = args[1].clone();
        let filename = args[2].clone();
        let ignore_case = env::var("IGNORE_CASE").is_ok();
        Ok(Config {
            filename,
            query,
            ignore_case,
        })
    }
}

pub fn run(config: Config) -> Result<(), Box<dyn Error>> {
    let contents = fs::read_to_string(config.filename)?;
    for line in search(&config.query, &contents, config.ignore_case) {
        println!("{}", line);
    }
    Ok(())
}

pub fn search<'a>(query: &str, contents: &'a str, case_insensitive: bool) -> Vec<&'a str> {
    let query = if case_insensitive {
        query.to_lowercase()
    } else {
        query.to_string()
    };
    let mut results = vec![];
    if case_insensitive {
        for line in contents.lines() {
            if line.to_lowercase().contains(&query) {
                results.push(line);
            }
        }
    } else {
        for line in contents.lines() {
            if line.contains(&query) {
                results.push(line);
            }
        }
    }
    results
}

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

    #[test]
    fn case_sensitive_test() {
        let query = "duct";
        let contents = "\
Rust:
safe, fast, productive.
Duct tape.
Pick three.";
        assert_eq!(
            vec!["safe, fast, productive.",],
            search(query, contents, false)
        );
    }
    #[test]
    fn case_insensitive_test() {
        let query = "dUCt";
        let contents = "\
Rust:
safe, fast, productive.
Duct tape.
Pick three.";
        assert_eq!(
            vec!["safe, fast, productive.", "Duct tape."],
            search(query, contents, true)
        );
    }
}

[rouge8]

Hmm, this file works for me. Do you have nvim-treesitter installed and the Rust grammar installed for that?

[tomhampshire]

I'm a numpty. This was exactly the problem...
I've just ported my nvim.init over to lua. That's my excuse, anyway...

[tomhampshire]

Thanks for your help.

[tomhampshire]

We should feed this info back to the neotest repo maintainer. It would be useful to have the information in the 'installation' section that the relevant treesitter languages must be installed...