1 files changed, 15 insertions, 0 deletions
diff --git a/tests/ui/proc-macro/is-available.rs b/tests/ui/proc-macro/is-available.rs
new file mode 100644
index 000000000..b32bb61b4
--- /dev/null
+++ b/tests/ui/proc-macro/is-available.rs
@@ -0,0 +1,15 @@
+// run-pass
+
+extern crate proc_macro;
+
+// aux-build:is-available.rs
+extern crate is_available;
+
+fn main() {
+    let a = proc_macro::is_available();
+    let b = is_available::from_inside_proc_macro!();
+    let c = proc_macro::is_available();
+    assert!(!a);
+    assert!(b);
+    assert!(!c);
+}