CI: add additional test cases

marker_uilints/tests/ui/cfg_attr_check.rs

@@ -1,7 +1,22 @@
 #![cfg_attr(marker, feature(register_tool))]
 #![cfg_attr(marker, register_tool(marker))]
 
-mod cfg_attr_scope {
+mod allow_with_simple_attr {
     #[cfg_attr(marker, allow(marker::item_with_test_name))]
     fn find_me_fn() {}
 }
+
+mod allow_with_crate_check_attr {
+    #[cfg_attr(marker = "marker_uilints", allow(marker::item_with_test_name))]
+    fn find_me_fn() {}
+}
+
+mod lint_with_unloaded_crate_attr {
+    #[cfg_attr(marker = "some_unknown_crate_that_isnt_loaded", allow(marker::item_with_test_name))]
+    fn find_me_fn() {}
+}
+
+mod unknown_lint_allow {
+    #[cfg_attr(marker, allow(marker::some_unknown_lint_that_doesnt_exist))]
+    fn foo() {}
+}

marker_uilints/tests/ui/cfg_attr_check.stderr

@@ -0,0 +1,18 @@
+warning: unknown lint: `marker::some_unknown_lint_that_doesnt_exist`
+  --> $DIR/cfg_attr_check.rs:20:30
+   |
+20 |     #[cfg_attr(marker, allow(marker::some_unknown_lint_that_doesnt_exist))]
+   |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: `#[warn(unknown_lints)]` on by default
+
+warning: found a `fn` item with a test name
+  --> $DIR/cfg_attr_check.rs:16:5
+   |
+16 |     fn find_me_fn() {}
+   |     ^^^^^^^^^^^^^^^^^^
+   |
+   = note: `#[warn(marker::item_with_test_name)]` on by default
+
+warning: 2 warnings emitted
+