1 files changed, 53 insertions, 0 deletions
diff --git a/vendor/darling-0.14.4/tests/from_type_param_default.rs b/vendor/darling-0.14.4/tests/from_type_param_default.rs
new file mode 100644
index 000000000..9d65665bb
--- /dev/null
+++ b/vendor/darling-0.14.4/tests/from_type_param_default.rs
@@ -0,0 +1,53 @@
+use darling::FromTypeParam;
+use syn::{parse_quote, DeriveInput, GenericParam, TypeParam};
+
+#[derive(Default, FromTypeParam)]
+#[darling(attributes(lorem), default)]
+struct Lorem {
+    foo: bool,
+    bar: Option<String>,
+    default: Option<syn::Type>,
+}
+
+fn extract_type(param: &GenericParam) -> &TypeParam {
+    match *param {
+        GenericParam::Type(ref ty) => ty,
+        _ => unreachable!("Not a type param"),
+    }
+}
+
+#[test]
+#[allow(clippy::bool_assert_comparison)]
+fn expand_many() {
+    let di: DeriveInput = parse_quote! {
+        struct Baz<
+            #[lorem(foo)] T,
+            #[lorem(bar = "x")] U: Eq + ?Sized,
+            #[lorem(foo = false)] V = (),
+        >(T, U, V);
+    };
+    let params = di.generics.params;
+
+    {
+        let ty = extract_type(&params[0]);
+        let lorem = Lorem::from_type_param(ty).unwrap();
+        assert_eq!(lorem.foo, true);
+        assert_eq!(lorem.bar, None);
+    }
+
+    {
+        let ty = extract_type(&params[1]);
+        let lorem = Lorem::from_type_param(ty).unwrap();
+        assert_eq!(lorem.foo, false);
+        assert_eq!(lorem.bar, Some("x".to_string()));
+        assert!(lorem.default.is_none());
+    }
+
+    {
+        let ty = extract_type(&params[2]);
+        let lorem = Lorem::from_type_param(ty).unwrap();
+        assert_eq!(lorem.foo, false);
+        assert_eq!(lorem.bar, None);
+        assert!(lorem.default.is_some());
+    }
+}