5 files changed, 80 insertions, 0 deletions
diff --git a/tests/rustdoc-gui/src/macro_expansion/Cargo.lock b/tests/rustdoc-gui/src/macro_expansion/Cargo.lock
new file mode 100644
index 00000000000..9c5cee8fb9d
--- /dev/null
+++ b/tests/rustdoc-gui/src/macro_expansion/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "macro_expansion"
+version = "0.1.0"
diff --git a/tests/rustdoc-gui/src/macro_expansion/Cargo.toml b/tests/rustdoc-gui/src/macro_expansion/Cargo.toml
new file mode 100644
index 00000000000..6d362850fc5
--- /dev/null
+++ b/tests/rustdoc-gui/src/macro_expansion/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "macro_expansion"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+path = "lib.rs"
diff --git a/tests/rustdoc-gui/src/macro_expansion/lib.rs b/tests/rustdoc-gui/src/macro_expansion/lib.rs
new file mode 100644
index 00000000000..62a92d5d15e
--- /dev/null
+++ b/tests/rustdoc-gui/src/macro_expansion/lib.rs
@@ -0,0 +1,56 @@
+// Test crate used to check the `--generate-macro-expansion` option.
+//@ compile-flags: -Zunstable-options --generate-macro-expansion --generate-link-to-definition
+
+mod other;
+
+#[macro_export]
+macro_rules! bar {
+    ($x:ident) => {{
+        $x += 2;
+        $x *= 2;
+    }}
+}
+
+macro_rules! bar2 {
+    () => {
+        fn foo2() -> impl std::fmt::Display {
+            String::new()
+        }
+    }
+}
+
+macro_rules! bar3 {
+    () => {
+        fn foo3() {}
+        fn foo4() -> String { String::new() }
+    }
+}
+
+bar2!();
+bar3!();
+
+#[derive(Debug, PartialEq)]
+pub struct Bar;
+
+#[derive(Debug
+)]
+pub struct Bar2;
+
+fn y_f(_: &str, _: &str, _: &str) {}
+
+fn foo() {
+    let mut y = 0;
+    bar!(y);
+    println!("
+    {y}
+    ");
+    // comment
+    println!("
+    {y}
+    ");
+    let s = y_f("\
+bla", stringify!(foo), stringify!(bar));
+
+    // Macro from another file.
+    other_macro!(y);
+}
diff --git a/tests/rustdoc-gui/src/macro_expansion/other.rs b/tests/rustdoc-gui/src/macro_expansion/other.rs
new file mode 100644
index 00000000000..8661b01be38
--- /dev/null
+++ b/tests/rustdoc-gui/src/macro_expansion/other.rs
@@ -0,0 +1,6 @@
+#[macro_export]
+macro_rules! other_macro {
+    ($x:ident) => {{
+        $x += 2;
+    }}
+}
diff --git a/tests/rustdoc-gui/src/test_docs/lib.rs b/tests/rustdoc-gui/src/test_docs/lib.rs
index 623f5b33e9b..42f2fbd93b1 100644
--- a/tests/rustdoc-gui/src/test_docs/lib.rs
+++ b/tests/rustdoc-gui/src/test_docs/lib.rs
@@ -161,6 +161,10 @@ pub enum AnEnum {
 /// Some keyword.
 pub mod keyword {}
 
+#[doc(attribute = "forbid")]
+/// Some attribute.
+pub mod repr {}
+
 /// Just some type alias.
 pub type SomeType = u32;