Introduce a script::test module to expose the APIs needed for unit tests.

components/script/test.rs

@@ -0,0 +1,55 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+pub use dom::bindings::str::{ByteString, DOMString};
+pub use dom::headers::normalize_value;
+
+pub mod size_of {
+    use dom::characterdata::CharacterData;
+    use dom::element::Element;
+    use dom::eventtarget::EventTarget;
+    use dom::htmldivelement::HTMLDivElement;
+    use dom::htmlelement::HTMLElement;
+    use dom::htmlspanelement::HTMLSpanElement;
+    use dom::node::Node;
+    use dom::text::Text;
+    use layout_wrapper::ServoThreadSafeLayoutNode;
+    use std::mem::size_of;
+
+    pub fn CharacterData() -> usize {
+        size_of::<CharacterData>()
+    }
+
+    pub fn Element() -> usize {
+        size_of::<Element>()
+    }
+
+    pub fn EventTarget() -> usize {
+        size_of::<EventTarget>()
+    }
+
+    pub fn HTMLDivElement() -> usize {
+        size_of::<HTMLDivElement>()
+    }
+
+    pub fn HTMLElement() -> usize {
+        size_of::<HTMLElement>()
+    }
+
+    pub fn HTMLSpanElement() -> usize {
+        size_of::<HTMLSpanElement>()
+    }
+
+    pub fn Node() -> usize {
+        size_of::<Node>()
+    }
+
+    pub fn ServoThreadSafeLayoutNode() -> usize {
+        size_of::<ServoThreadSafeLayoutNode>()
+    }
+
+    pub fn Text() -> usize {
+        size_of::<Text>()
+    }
+}