diff --git a/lib/tests/filter_globset.rs b/lib/tests/filter_globset.rs
index b4e38c2..fad6be1 100644
--- a/lib/tests/filter_globset.rs
+++ b/lib/tests/filter_globset.rs
@@ -347,6 +347,37 @@ async fn multipath_allow_on_any_one_pass() {
 	assert!(filterer.check_event(&event).unwrap());
 }
 
+#[tokio::test]
+async fn extensions_and_filters_glob() {
+	let filterer = filt(&["*/justfile"], &[], &["md", "css"]).await;
+
+	filterer.file_does_pass("justfile");
+	filterer.file_does_pass("foo/justfile");
+	filterer.file_does_pass("bar.md");
+	filterer.file_does_pass("qux.css");
+	filterer.file_doesnt_pass("nope.py");
+}
+
+#[tokio::test]
+async fn extensions_and_filters_slash() {
+	let filterer = filt(&["/justfile"], &[], &["md", "css"]).await;
+
+	filterer.file_does_pass("justfile");
+	filterer.file_does_pass("bar.md");
+	filterer.file_does_pass("qux.css");
+	filterer.file_doesnt_pass("nope.py");
+}
+
+#[tokio::test]
+async fn leading_single_glob_file() {
+	let filterer = filt(&["*/justfile"], &[], &[]).await;
+
+	filterer.file_does_pass("justfile");
+	filterer.file_does_pass("foo/justfile");
+	filterer.file_doesnt_pass("notfile");
+	filterer.file_doesnt_pass("not/thisfile");
+}
+
 #[tokio::test]
 async fn nonpath_event_passes() {
 	use watchexec::{