internal: move tests

crates/hir_def/src/macro_expansion_tests/mbe.rs

@@ -383,3 +383,35 @@ fn baz() -> bool {
 "#]],
     );
 }
+
+#[test]
+fn test_match_group_zero_match() {
+    check(
+        r#"
+macro_rules! m { ( $($i:ident)* ) => (); }
+m!();
+"#,
+        expect![[r#"
+macro_rules! m { ( $($i:ident)* ) => (); }
+
+"#]],
+    );
+}
+
+#[test]
+fn test_match_group_in_group() {
+    check(
+        r#"
+macro_rules! m {
+    [ $( ( $($i:ident)* ) )* ] => [ x![$( ( $($i)* ) )*]; ]
+}
+m! ( (a b) );
+"#,
+        expect![[r#"
+macro_rules! m {
+    [ $( ( $($i:ident)* ) )* ] => [ x![$( ( $($i)* ) )*]; ]
+}
+x![(a b)];
+"#]],
+    )
+}

crates/mbe/src/tests/expand.rs

@@ -71,28 +71,6 @@ macro_rules! foobar {
     assert_eq!(get_text(tt::TokenId(13), T!['{']), "{");
 }
 
-#[test]
-fn test_match_group_zero_match() {
-    parse_macro(
-        r#"
-        macro_rules! foo {
-            ( $($i:ident)* ) => ();
-        }"#,
-    )
-    .assert_expand_items("foo! ();", "");
-}
-
-#[test]
-fn test_match_group_in_group() {
-    parse_macro(
-        r#"
-        macro_rules! foo {
-            { $( ( $($i:ident)* ) )* } => ( $( ( $($i)* ) )* );
-        }"#,
-    )
-    .assert_expand_items("foo! ( (a b) );", "(a b)");
-}
-
 #[test]
 fn test_expand_to_item_list() {
     let tree = parse_macro(