3 files changed, 49 insertions, 0 deletions
diff --git a/tests/rustdoc-ui/doc-cfg-check-cfg.rs b/tests/rustdoc-ui/doc-cfg-check-cfg.rs
new file mode 100644
index 00000000000..e3420dc0789
--- /dev/null
+++ b/tests/rustdoc-ui/doc-cfg-check-cfg.rs
@@ -0,0 +1,16 @@
+// Ensure that `doc(cfg())` respects `check-cfg`
+// Currently not properly working
+#![feature(doc_cfg)]
+#![deny(unexpected_cfgs)]
+
+//@revisions: no_check cfg_empty cfg_foo
+//@[cfg_empty] compile-flags: --check-cfg cfg()
+//@[cfg_foo] compile-flags: --check-cfg cfg(foo)
+
+//@[no_check] check-pass
+//@[cfg_empty] check-pass
+//@[cfg_empty] known-bug: #138358
+//@[cfg_foo] check-pass
+
+#[doc(cfg(foo))]
+pub fn foo() {}
diff --git a/tests/rustdoc-ui/doc-cfg-unstable.rs b/tests/rustdoc-ui/doc-cfg-unstable.rs
new file mode 100644
index 00000000000..14c2e83ec85
--- /dev/null
+++ b/tests/rustdoc-ui/doc-cfg-unstable.rs
@@ -0,0 +1,10 @@
+// #138113: rustdoc didn't gate unstable predicates inside `doc(cfg(..))`
+#![feature(doc_cfg)]
+
+// `cfg_boolean_literals`
+#[doc(cfg(false))] //~ ERROR `cfg(false)` is experimental and subject to change
+pub fn cfg_boolean_literals() {}
+
+// `cfg_version`
+#[doc(cfg(sanitize = "thread"))] //~ ERROR `cfg(sanitize)` is experimental and subject to change
+pub fn cfg_sanitize() {}
diff --git a/tests/rustdoc-ui/doc-cfg-unstable.stderr b/tests/rustdoc-ui/doc-cfg-unstable.stderr
new file mode 100644
index 00000000000..54de3b178ed
--- /dev/null
+++ b/tests/rustdoc-ui/doc-cfg-unstable.stderr
@@ -0,0 +1,23 @@
+error[E0658]: `cfg(false)` is experimental and subject to change
+  --> $DIR/doc-cfg-unstable.rs:5:11
+   |
+LL | #[doc(cfg(false))]
+   |           ^^^^^
+   |
+   = note: see issue #131204 <https://github.com/rust-lang/rust/issues/131204> for more information
+   = help: add `#![feature(cfg_boolean_literals)]` to the crate attributes to enable
+   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
+
+error[E0658]: `cfg(sanitize)` is experimental and subject to change
+  --> $DIR/doc-cfg-unstable.rs:9:11
+   |
+LL | #[doc(cfg(sanitize = "thread"))]
+   |           ^^^^^^^^^^^^^^^^^^^
+   |
+   = note: see issue #39699 <https://github.com/rust-lang/rust/issues/39699> for more information
+   = help: add `#![feature(cfg_sanitize)]` to the crate attributes to enable
+   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
+
+error: aborting due to 2 previous errors
+
+For more information about this error, try `rustc --explain E0658`.