3 files changed, 52 insertions, 6 deletions

diff --git a/crates/ra_hir_ty/src/tests/macros.rs b/crates/ra_hir_ty/src/tests/macros.rs
index 652420ea8..53cd81d46 100644
--- a/crates/ra_hir_ty/src/tests/macros.rs
+++ b/crates/ra_hir_ty/src/tests/macros.rs
@@ -4,7 +4,7 @@ use insta::assert_snapshot;
 use ra_db::fixture::WithFixture;
 
 #[test]
-fn cfg_impl_block() {
+fn cfg_impl_def() {
     let (db, pos) = TestDB::with_position(
         r#"
 //- /main.rs crate:main deps:foo cfg:test
@@ -347,17 +347,17 @@ mod m {
 m::foo!(foo);
 use foo as bar;
 fn f() -> bar { 0 }
-fn main() {  
+fn main() {
     let _a  = f();
 }
 "#),
         @r###"
         [159; 164) '{ 0 }': u64
         [161; 162) '0': u64
-        [175; 199) '{     ...f(); }': ()
-        [187; 189) '_a': u64
-        [193; 194) 'f': fn f() -> u64
-        [193; 196) 'f()': u64        
+        [175; 197) '{     ...f(); }': ()
+        [185; 187) '_a': u64
+        [191; 192) 'f': fn f() -> u64
+        [191; 194) 'f()': u64
     "###
     );
 }
diff --git a/crates/ra_hir_ty/src/tests/method_resolution.rs b/crates/ra_hir_ty/src/tests/method_resolution.rs
index 644d59e17..f9b394f05 100644
--- a/crates/ra_hir_ty/src/tests/method_resolution.rs
+++ b/crates/ra_hir_ty/src/tests/method_resolution.rs
@@ -839,6 +839,24 @@ fn test() { (&S).foo()<|>; }
 }
 
 #[test]
+fn method_resolution_unsize_array() {
+    let t = type_at(
+        r#"
+//- /main.rs
+#[lang = "slice"]
+impl<T> [T] {
+    fn len(&self) -> usize { loop {} }
+}
+fn test() {
+    let a = [1, 2, 3];
+    a.len()<|>;
+}
+"#,
+    );
+    assert_eq!(t, "usize");
+}
+
+#[test]
 fn method_resolution_trait_from_prelude() {
     let (db, pos) = TestDB::with_position(
         r#"
diff --git a/crates/ra_hir_ty/src/tests/traits.rs b/crates/ra_hir_ty/src/tests/traits.rs
index 7d796d0b9..547010b35 100644
--- a/crates/ra_hir_ty/src/tests/traits.rs
+++ b/crates/ra_hir_ty/src/tests/traits.rs
@@ -568,6 +568,34 @@ mod ops {
 }
 
 #[test]
+fn infer_ops_index_autoderef() {
+    let (db, pos) = TestDB::with_position(
+        r#"
+//- /main.rs crate:main deps:std
+fn test() {
+    let a = &[1u32, 2, 3];
+    let b = a[1];
+    b<|>;
+}
+
+//- /std.rs crate:std
+impl<T> ops::Index<u32> for [T] {
+    type Output = T;
+}
+
+#[prelude_import] use ops::*;
+mod ops {
+    #[lang = "index"]
+    pub trait Index<Idx> {
+        type Output;
+    }
+}
+"#,
+    );
+    assert_eq!("u32", type_at_pos(&db, pos));
+}
+
+#[test]
 fn deref_trait() {
     let t = type_at(
         r#"