integration test for relative path go-to definition

Summary: I noticed these broke in a change I'm making. before the change, I'd like to show that they still work.

Reviewed By: SamChou19815

Differential Revision: D75472820

fbshipit-source-id: 3eb84cce7d40b3d80aed47b74978270ae0f6ca80

Author: kinto0

pyrefly/lib/test/lsp/lsp_interaction.rs

@@ -177,6 +177,21 @@ fn test_go_to_def_no_folder_capability() {
     test_go_to_def_basic(&root, None);
 }
 
+#[test]
+fn test_go_to_def_relative_path() {
+    test_go_to_def(
+        &get_test_files_root(),
+        None,
+        "foo_relative.py",
+        vec![
+            (5, 14, "bar.py".to_owned(), 0, 0, 0, 0),
+            (6, 17, "bar.py".to_owned(), 6, 6, 6, 9),
+            (8, 9, "bar.py".to_owned(), 7, 4, 7, 7),
+            (9, 7, "bar.py".to_owned(), 6, 6, 6, 9),
+        ],
+    );
+}
+
 #[test]
 fn definition_in_builtins_enabled() {
     let root = get_test_files_root();

pyrefly/lib/test/lsp/test_files/foo_relative.py

@@ -0,0 +1,10 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+from . import bar
+from .bar import Bar
+
+Bar().foo
+bar.Bar().foo