browserslist/queries/
last_n_x_browsers.rsuse super::{count_android_filter, should_filter_android, Distrib, QueryResult};
use crate::{data::caniuse::get_browser_stat, error::Error, opts::Opts};
pub(super) fn last_n_x_browsers(count: usize, name: &str, opts: &Opts) -> QueryResult {
let (name, stat) = get_browser_stat(name, opts.mobile_to_desktop)
.ok_or_else(|| Error::BrowserNotFound(name.to_string()))?;
let count = if should_filter_android(name, opts.mobile_to_desktop) {
count_android_filter(count, opts.mobile_to_desktop)
} else {
count
};
let distribs = stat
.version_list
.iter()
.filter(|version| version.release_date.is_some())
.rev()
.take(count)
.map(|version| Distrib::new(name, &*version.version))
.collect();
Ok(distribs)
}
#[cfg(test)]
mod tests {
use super::*;
use crate::test::run_compare;
use test_case::test_case;
#[test_case("last 2 ie versions"; "basic")]
#[test_case("last 2 safari versions"; "do not include unreleased versions")]
#[test_case("last 1 ie version"; "support pluralization")]
#[test_case("last 01 Explorer version"; "alias")]
#[test_case("Last 01 IE Version"; "case insensitive")]
#[test_case("last 4 android versions"; "android 1")]
#[test_case("last 31 android versions"; "android 2")]
fn valid(query: &str) {
run_compare(query, &Opts::new());
}
}