From 4e32b5e430d52a3d30d0a0975bb3280e3044794e Mon Sep 17 00:00:00 2001
From: alexlapa <lapa.alex@ex.ua>
Date: Fri, 15 Mar 2019 14:27:18 -0600
Subject: [PATCH] add read_optional_enum_attribute to webidl-tests/enums

---
 crates/webidl-tests/enums.js     |  8 ++++++++
 crates/webidl-tests/enums.rs     | 14 ++++++++++++++
 crates/webidl-tests/enums.webidl |  4 ++++
 3 files changed, 26 insertions(+)

diff --git a/crates/webidl-tests/enums.js b/crates/webidl-tests/enums.js
index fa23ec818..1750f69e2 100644
--- a/crates/webidl-tests/enums.js
+++ b/crates/webidl-tests/enums.js
@@ -18,4 +18,12 @@ global.Shape = class Shape {
   getShape() {
     return this.kind;
   }
+
+  get shapeTypeNone() {
+    return null;
+  }
+
+  get shapeTypeSome() {
+    return this.kind;
+  }
 };
diff --git a/crates/webidl-tests/enums.rs b/crates/webidl-tests/enums.rs
index b5e0949e7..23f258c22 100644
--- a/crates/webidl-tests/enums.rs
+++ b/crates/webidl-tests/enums.rs
@@ -35,3 +35,17 @@ fn invalid_enum_return() {
         _ => {} // Success
     };
 }
+
+#[wasm_bindgen_test]
+fn read_optional_enum_attribute_none() {
+    let shape = Shape::new(ShapeType::Circle).unwrap();
+    let shape_type: Option<ShapeType> = shape.shape_type_none();
+    assert_eq!(shape_type, None);
+}
+
+#[wasm_bindgen_test]
+fn read_optional_enum_attribute_some() {
+    let shape = Shape::new(ShapeType::Circle).unwrap();
+    let shape_type: Option<ShapeType> = shape.shape_type_some();
+    assert_eq!(shape_type, Some(ShapeType::Circle));
+}
diff --git a/crates/webidl-tests/enums.webidl b/crates/webidl-tests/enums.webidl
index acd043b31..b200888d3 100644
--- a/crates/webidl-tests/enums.webidl
+++ b/crates/webidl-tests/enums.webidl
@@ -12,4 +12,8 @@ interface Shape {
 
   [Pure]
     ShapeType getShape();
+
+  readonly attribute ShapeType? shapeTypeNone;
+
+  readonly attribute ShapeType? shapeTypeSome;
 };