--- /dev/null
+use super::*;
+
+use crate::{edition, SessionGlobals};
+
+#[test]
+fn interner_tests() {
+ let mut i: Interner = Interner::default();
+ // first one is zero:
+ assert_eq!(i.intern("dog"), Symbol::new(0));
+ // re-use gets the same entry:
+ assert_eq!(i.intern("dog"), Symbol::new(0));
+ // different string gets a different #:
+ assert_eq!(i.intern("cat"), Symbol::new(1));
+ assert_eq!(i.intern("cat"), Symbol::new(1));
+ // dog is still at zero
+ assert_eq!(i.intern("dog"), Symbol::new(0));
+}
+
+#[test]
+fn without_first_quote_test() {
+ SESSION_GLOBALS.set(&SessionGlobals::new(edition::DEFAULT_EDITION), || {
+ let i = Ident::from_str("'break");
+ assert_eq!(i.without_first_quote().name, kw::Break);
+ });
+}