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use std::path::PathBuf;
use super::split_extern_opt;
use crate::EarlyDiagCtxt;
use crate::config::UnstableOptions;
/// Verifies split_extern_opt handles the supported cases.
#[test]
fn test_split_extern_opt() {
let early_dcx = EarlyDiagCtxt::new(<_>::default());
let unstable_opts = &UnstableOptions::default();
let extern_opt =
split_extern_opt(&early_dcx, unstable_opts, "priv,noprelude:foo=libbar.rlib").unwrap();
assert_eq!(extern_opt.crate_name, "foo");
assert_eq!(extern_opt.path, Some(PathBuf::from("libbar.rlib")));
assert_eq!(extern_opt.options, Some("priv,noprelude".to_string()));
let extern_opt = split_extern_opt(&early_dcx, unstable_opts, "priv,noprelude:foo").unwrap();
assert_eq!(extern_opt.crate_name, "foo");
assert_eq!(extern_opt.path, None);
assert_eq!(extern_opt.options, Some("priv,noprelude".to_string()));
let extern_opt = split_extern_opt(&early_dcx, unstable_opts, "foo=libbar.rlib").unwrap();
assert_eq!(extern_opt.crate_name, "foo");
assert_eq!(extern_opt.path, Some(PathBuf::from("libbar.rlib")));
assert_eq!(extern_opt.options, None);
let extern_opt = split_extern_opt(&early_dcx, unstable_opts, "foo").unwrap();
assert_eq!(extern_opt.crate_name, "foo");
assert_eq!(extern_opt.path, None);
assert_eq!(extern_opt.options, None);
}
/// Tests some invalid cases for split_extern_opt.
#[test]
fn test_split_extern_opt_invalid() {
let early_dcx = EarlyDiagCtxt::new(<_>::default());
let unstable_opts = &UnstableOptions::default();
// too many `:`s
let result = split_extern_opt(&early_dcx, unstable_opts, "priv:noprelude:foo=libbar.rlib");
assert!(result.is_err());
let _ = result.map_err(|e| e.cancel());
// can't nest externs without the unstable flag
let result = split_extern_opt(&early_dcx, unstable_opts, "noprelude:foo::bar=libbar.rlib");
assert!(result.is_err());
let _ = result.map_err(|e| e.cancel());
}
/// Tests some cases for split_extern_opt with nested crates like `foo::bar`.
#[test]
fn test_split_extern_opt_nested() {
let early_dcx = EarlyDiagCtxt::new(<_>::default());
let unstable_opts = &UnstableOptions { namespaced_crates: true, ..Default::default() };
let extern_opt =
split_extern_opt(&early_dcx, unstable_opts, "priv,noprelude:foo::bar=libbar.rlib").unwrap();
assert_eq!(extern_opt.crate_name, "foo::bar");
assert_eq!(extern_opt.path, Some(PathBuf::from("libbar.rlib")));
assert_eq!(extern_opt.options, Some("priv,noprelude".to_string()));
let extern_opt =
split_extern_opt(&early_dcx, unstable_opts, "priv,noprelude:foo::bar").unwrap();
assert_eq!(extern_opt.crate_name, "foo::bar");
assert_eq!(extern_opt.path, None);
assert_eq!(extern_opt.options, Some("priv,noprelude".to_string()));
let extern_opt = split_extern_opt(&early_dcx, unstable_opts, "foo::bar=libbar.rlib").unwrap();
assert_eq!(extern_opt.crate_name, "foo::bar");
assert_eq!(extern_opt.path, Some(PathBuf::from("libbar.rlib")));
assert_eq!(extern_opt.options, None);
let extern_opt = split_extern_opt(&early_dcx, unstable_opts, "foo::bar").unwrap();
assert_eq!(extern_opt.crate_name, "foo::bar");
assert_eq!(extern_opt.path, None);
assert_eq!(extern_opt.options, None);
}
/// Tests some invalid cases for split_extern_opt with nested crates like `foo::bar`.
#[test]
fn test_split_extern_opt_nested_invalid() {
let early_dcx = EarlyDiagCtxt::new(<_>::default());
let unstable_opts = &UnstableOptions { namespaced_crates: true, ..Default::default() };
// crates can only be nested one deep.
let result =
split_extern_opt(&early_dcx, unstable_opts, "priv,noprelude:foo::bar::baz=libbar.rlib");
assert!(result.is_err());
let _ = result.map_err(|e| e.cancel());
}
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