Add regression test for generic args showing `host` param

1 files changed, 12 insertions, 0 deletions

diff --git a/tests/rustdoc/const-effect-param.rs b/tests/rustdoc/const-effect-param.rs
new file mode 100644
index 00000000000..b1155dd9d8f
--- /dev/null
+++ b/tests/rustdoc/const-effect-param.rs
@@ -0,0 +1,12 @@
+#![crate_name = "foo"]
+#![feature(effects, const_trait_impl)]
+
+#[const_trait]
+pub trait Tr {
+    fn f();
+}
+
+// @has foo/fn.g.html
+// @has - '//pre[@class="rust item-decl"]' 'pub const fn g<T: Tr<host>>()'
+/// foo
+pub const fn g<T: ~const Tr>() {}