1 files changed, 94 insertions, 0 deletions
diff --git a/src/tools/rustfmt/tests/target/comments-in-lists/format-doc-comments.rs b/src/tools/rustfmt/tests/target/comments-in-lists/format-doc-comments.rs
new file mode 100644
index 000000000..be4b7a8c4
--- /dev/null
+++ b/src/tools/rustfmt/tests/target/comments-in-lists/format-doc-comments.rs
@@ -0,0 +1,94 @@
+// rustfmt-format_code_in_doc_comments: true
+
+// https://github.com/rust-lang/rustfmt/issues/4420
+enum Minimal {
+    Example,
+    //[thisisremoved thatsleft
+    // canbeanything
+}
+
+struct Minimal2 {
+    Example: usize,
+    //[thisisremoved thatsleft
+    // canbeanything
+}
+
+pub enum E {
+    // Expand as needed, numbers should be ascending according to the stage
+    // through the inclusion pipeline, or according to the descriptions
+    Variant1,
+    // Expand as needed, numbers should be ascending according to the stage
+    // through the inclusion pipeline, or according to the descriptions
+    Variant2,
+    // Expand as needed, numbers should be ascending according to the stage
+    // through the inclusion pipeline, or according to the descriptions
+}
+
+pub enum E2 {
+    // Expand as needed, numbers should be ascending according to the stage
+    // through the inclusion pipeline, or according to the descriptions
+}
+
+pub struct S {
+    // Expand as needed, numbers should be ascending according to the stage
+    // through the inclusion pipeline, or according to the descriptions
+    some_field: usize,
+    // Expand as needed, numbers should be ascending according to the stage
+    // through the inclusion pipeline, or according to the descriptions
+    last_field: usize,
+    // Expand as needed, numbers should be ascending according to the stage
+    // through the inclusion pipeline, or according to the descriptions
+}
+
+pub struct S2 {
+    // Expand as needed, numbers should be ascending according to the stage
+    // through the inclusion pipeline, or according to the descriptions
+}
+
+fn foo(
+    // Expand as needed, numbers should be ascending according to the stage
+    // through the inclusion pipeline, or according to the descriptions
+    a: usize,
+    // Expand as needed, numbers should be ascending according to the stage
+    // through the inclusion pipeline, or according to the descriptions
+    b: usize,
+    // Expand as needed, numbers should be ascending according to the stage
+    // through the inclusion pipeline, or according to the descriptions
+) -> usize {
+    5
+}
+
+fn foo2(// Expand as needed, numbers should be ascending according to the stage
+    // through the inclusion pipeline, or according to the descriptions
+) -> usize {
+    5
+}
+
+fn main() {
+    let v = vec![
+        // Expand as needed, numbers should be ascending according to the stage
+        // through the inclusion pipeline, or according to the descriptions
+        1,
+        // Expand as needed, numbers should be ascending according to the stage
+        // through the inclusion pipeline, or according to the descriptions
+        2,
+        // Expand as needed, numbers should be ascending according to the stage
+        // through the inclusion pipeline, or according to the descriptions
+    ];
+
+    let v2: Vec<i32> = vec![
+        // Expand as needed, numbers should be ascending according to the stage
+        // through the inclusion pipeline, or according to the descriptions
+    ];
+
+    match a {
+        // Expand as needed, numbers should be ascending according to the stage
+        // through the inclusion pipeline, or according to the descriptions
+        b => c,
+        // Expand as needed, numbers should be ascending according to the stage
+        // through the inclusion pipeline, or according to the descriptions
+        d => e,
+        // Expand as needed, numbers should be ascending according to the stage
+        // through the inclusion pipeline, or according to the descriptions
+    }
+}