1 files changed, 58 insertions, 0 deletions
diff --git a/rand/rand-derive/tests/rand_macros.rs b/rand/rand-derive/tests/rand_macros.rs
new file mode 100644
index 0000000..938f2b0
--- /dev/null
+++ b/rand/rand-derive/tests/rand_macros.rs
@@ -0,0 +1,58 @@
+#![allow(dead_code)]
+
+extern crate rand;
+#[macro_use]
+extern crate rand_derive;
+
+use rand::Rng;
+
+#[derive(Rand)]
+struct Struct {
+    x: u16,
+    y: Option<f64>,
+}
+
+#[derive(Rand)]
+struct Tuple(i16, Option<f64>);
+
+#[derive(Rand)]
+struct Unit;
+
+#[derive(Rand)]
+enum EnumUnit {
+    X,
+}
+
+#[derive(Rand)]
+enum Enum1 {
+    X(u8, f32),
+}
+
+#[derive(Rand)]
+enum Enum2 {
+    X(bool),
+    Y,
+}
+
+#[derive(Rand)]
+enum Enum3 {
+    X { x: u8, y: isize },
+    Y([bool; 4]),
+    Z,
+}
+
+#[test]
+fn smoke() {
+    let mut rng = rand::XorShiftRng::new_unseeded();
+
+    // check nothing horrible happens internally:
+    for _ in 0..100 {
+        let _ = rng.gen::<Struct>();
+        let _ = rng.gen::<Tuple>();
+        let _ = rng.gen::<Unit>();
+        let _ = rng.gen::<EnumUnit>();
+        let _ = rng.gen::<Enum1>();
+        let _ = rng.gen::<Enum2>();
+        let _ = rng.gen::<Enum3>();
+    }
+}