Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 75 insertions, 0 deletions

diff --git a/third_party/rust/darling/tests/happy_path.rs b/third_party/rust/darling/tests/happy_path.rs
new file mode 100644
index 0000000000..df1bfadd75
--- /dev/null
+++ b/third_party/rust/darling/tests/happy_path.rs
@@ -0,0 +1,75 @@
+#[macro_use]
+extern crate darling;
+#[macro_use]
+extern crate syn;
+#[macro_use]
+extern crate quote;
+
+use darling::FromDeriveInput;
+
+#[derive(Default, FromMeta, PartialEq, Debug)]
+#[darling(default)]
+struct Lorem {
+    ipsum: bool,
+    dolor: Option<String>,
+}
+
+#[derive(FromDeriveInput, PartialEq, Debug)]
+#[darling(attributes(darling_demo))]
+struct Core {
+    ident: syn::Ident,
+    vis: syn::Visibility,
+    generics: syn::Generics,
+    lorem: Lorem,
+}
+
+#[derive(FromDeriveInput, PartialEq, Debug)]
+#[darling(attributes(darling_demo))]
+struct TraitCore {
+    ident: syn::Ident,
+    generics: syn::Generics,
+    lorem: Lorem,
+}
+
+#[test]
+fn simple() {
+    let di = parse_quote! {
+        #[derive(Foo)]
+        #[darling_demo(lorem(ipsum))]
+        pub struct Bar;
+    };
+
+    assert_eq!(
+        Core::from_derive_input(&di).unwrap(),
+        Core {
+            ident: parse_quote!(Bar),
+            vis: parse_quote!(pub),
+            generics: Default::default(),
+            lorem: Lorem {
+                ipsum: true,
+                dolor: None,
+            },
+        }
+    );
+}
+
+#[test]
+fn trait_type() {
+    let di = parse_quote! {
+        #[derive(Foo)]
+        #[darling_demo(lorem(dolor = "hello"))]
+        pub struct Bar;
+    };
+
+    assert_eq!(
+        TraitCore::from_derive_input(&di).unwrap(),
+        TraitCore {
+            ident: parse_quote!(Bar),
+            generics: Default::default(),
+            lorem: Lorem {
+                ipsum: false,
+                dolor: Some("hello".to_owned()),
+            }
+        }
+    );
+}