tests/rustdoc-html/macro/generated_macro.rs

// This test ensures that the macro generated by the proc macro has the correct
// "item-decl" code block.
// Regression test for <https://github.com/rust-lang/rust/issues/79289>.

//@ aux-build:generated_macro.rs

#![crate_name = "foo"]

extern crate generated_macro;

//@ has 'foo/macro.my_generated_macro.html'
//@ matches - '//*[@class="rust item-decl"]/code' \
// 'macro_rules! my_generated_macro \{\s+\(\$my_macro_parameter:expr\) => \{ ... \};\s+\}'

#[derive(generated_macro::MyDeriveMacro)]
struct MyStruct {}