clap_logger 0.3.3

env_logger integration for clap
Documentation 
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#[cfg(feature = "env")]
use std::env;

use clap::{arg, ArgMatches, Command};
use log::{debug, error, info, trace, warn, LevelFilter};

#[cfg(feature = "env")]
use crate::init_logger::{EnvLogLevelHandling, PrintEnvWarning};
use crate::{ClapInitLogger, ClapLoglevelArg};

/*#[derive(Parser)]
struct ClapDerive {
	// TODO find a way to add integrate with clap parse
}*/

/*#[test]
fn clap_derive() {
	// TODO parse clap derive example
}*/

#[test]
fn clap_command() {
	let m: ArgMatches = Command::new("clap_command_test")
		.arg(arg!(-a --alpha "bla"))
		.add_loglevel_arg(LevelFilter::Info)
		.get_matches_from(["clap_logger", "--loglevel", "OFF"]);
	m.init_logger().expect("Failed to initialize logger");
	trace!("trace");
	debug!("debug");
	info!("info");
	warn!("warn");
	error!("error");
}

#[cfg(feature = "env")]
#[test]
fn env_loglevel_invalid() {
	env::set_var("TEST_LOGLEVEL", "abc");

	let m: ArgMatches = Command::new("clap_command_test")
		.arg(arg!(-a --alpha "bla"))
		.add_loglevel_arg(LevelFilter::Info)
		.get_matches_from(["clap_logger", "--loglevel", "OFF"]);
	m.init_logger_env(
		EnvLogLevelHandling::OverwriteDefault("TEST_LOGLEVEL".to_string()),
		PrintEnvWarning::Yes,
	)
	.expect("Failed to initialize logger");

	trace!("trace");
	debug!("debug");
	info!("info");
	warn!("warn");
	error!("error");
}