1 files changed, 45 insertions, 0 deletions

diff --git a/crates/libanalysis/tests/tests.rs b/crates/libanalysis/tests/tests.rs
new file mode 100644
index 000000000..9ef5200af
--- /dev/null
+++ b/crates/libanalysis/tests/tests.rs
@@ -0,0 +1,45 @@
+extern crate libanalysis;
+extern crate assert_eq_text;
+
+use std::path::PathBuf;
+
+use libanalysis::{WorldState, FileId};
+use assert_eq_text::assert_eq_dbg;
+
+
+#[test]
+fn test_resolve_module() {
+    let mut world = WorldState::new();
+    world.change_file(FileId(1), Some("mod foo;".to_string()));
+    world.change_file(FileId(2), Some("".to_string()));
+
+    let snap = world.snapshot(|id, path| {
+        assert_eq!(id, FileId(1));
+        if path == PathBuf::from("../foo/mod.rs") {
+            return None;
+        }
+        assert_eq!(path, PathBuf::from("../foo.rs"));
+        Some(FileId(2))
+    });
+    let symbols = snap.approximately_resolve_symbol(FileId(1), 4.into())
+        .unwrap();
+    assert_eq_dbg(
+        r#"[(FileId(2), FileSymbol { name: "foo", node_range: [0; 0), kind: MODULE })]"#,
+        &symbols,
+    );
+
+    let snap = world.snapshot(|id, path| {
+        assert_eq!(id, FileId(1));
+        if path == PathBuf::from("../foo.rs") {
+            return None;
+        }
+        assert_eq!(path, PathBuf::from("../foo/mod.rs"));
+        Some(FileId(2))
+    });
+    let symbols = snap.approximately_resolve_symbol(FileId(1), 4.into())
+        .unwrap();
+    assert_eq_dbg(
+        r#"[(FileId(2), FileSymbol { name: "foo", node_range: [0; 0), kind: MODULE })]"#,
+        &symbols,
+    );
+}