Make VFS join methods fallible

1 files changed, 16 insertions, 0 deletions

diff --git a/crates/ra_hir_def/src/nameres/tests/mod_resolution.rs b/crates/ra_hir_def/src/nameres/tests/mod_resolution.rs
index e9a5e4cba..753684201 100644
--- a/crates/ra_hir_def/src/nameres/tests/mod_resolution.rs
+++ b/crates/ra_hir_def/src/nameres/tests/mod_resolution.rs
@@ -335,6 +335,22 @@ fn module_resolution_relative_path_2() {
 }
 
 #[test]
+fn module_resolution_relative_path_outside_root() {
+    let map = def_map(
+        r###"
+        //- /main.rs
+
+        #[path="../../../../../outside.rs"]
+        mod foo;
+        "###,
+    );
+
+    assert_snapshot!(map, @r###"
+        ⋮crate
+    "###);
+}
+
+#[test]
 fn module_resolution_explicit_path_mod_rs_2() {
     let map = def_map(
         r###"