1 files changed, 35 insertions, 0 deletions
diff --git a/tests/ui/deriving/deriving-show.rs b/tests/ui/deriving/deriving-show.rs
new file mode 100644
index 000000000..eb3a8948f
--- /dev/null
+++ b/tests/ui/deriving/deriving-show.rs
@@ -0,0 +1,35 @@
+// run-pass
+#![allow(dead_code)]
+#[derive(Debug)]
+struct Unit;
+
+#[derive(Debug)]
+struct Tuple(isize, usize);
+
+#[derive(Debug)]
+struct Struct { x: isize, y: usize }
+
+#[derive(Debug)]
+enum Enum {
+    Nullary,
+    Variant(isize, usize),
+    StructVariant { x: isize, y : usize }
+}
+
+#[derive(Debug)]
+struct Pointers(*const dyn Send, *mut dyn Sync);
+
+macro_rules! t {
+    ($x:expr, $expected:expr) => {
+        assert_eq!(format!("{:?}", $x), $expected.to_string())
+    }
+}
+
+pub fn main() {
+    t!(Unit, "Unit");
+    t!(Tuple(1, 2), "Tuple(1, 2)");
+    t!(Struct { x: 1, y: 2 }, "Struct { x: 1, y: 2 }");
+    t!(Enum::Nullary, "Nullary");
+    t!(Enum::Variant(1, 2), "Variant(1, 2)");
+    t!(Enum::StructVariant { x: 1, y: 2 }, "StructVariant { x: 1, y: 2 }");
+}