diff --git a/tests/unit/style/animated_properties.rs b/tests/unit/style/animated_properties.rs
index 8fa45a6305f3..dd233f01b893 100644
--- a/tests/unit/style/animated_properties.rs
+++ b/tests/unit/style/animated_properties.rs
@@ -92,53 +92,3 @@ fn test_transform_interpolation_on_scale() {
         Transform(vec![TransformOperation::Scale3D(1.5, 3.0, 1.5)])
     );
 }
-
-#[test]
-fn test_transform_interpolation_on_rotate() {
-    use style::values::computed::Angle;
-
-    let from = Transform(vec![TransformOperation::Rotate3D(
-        0.0,
-        0.0,
-        1.0,
-        Angle::from_radians(0.0),
-    )]);
-    let to = Transform(vec![TransformOperation::Rotate3D(
-        0.0,
-        0.0,
-        1.0,
-        Angle::from_radians(100.0),
-    )]);
-    assert_eq!(
-        from.animate(&to, Procedure::Interpolate { progress: 0.5 })
-            .unwrap(),
-        Transform(vec![TransformOperation::Rotate3D(
-            0.0,
-            0.0,
-            1.0,
-            Angle::from_radians(50.0)
-        )])
-    );
-}
-
-#[test]
-fn test_transform_interpolation_on_skew() {
-    use style::values::computed::Angle;
-
-    let from = Transform(vec![TransformOperation::Skew(
-        Angle::from_radians(0.0),
-        Some(Angle::from_radians(100.0)),
-    )]);
-    let to = Transform(vec![TransformOperation::Skew(
-        Angle::from_radians(100.0),
-        Some(Angle::from_radians(0.0)),
-    )]);
-    assert_eq!(
-        from.animate(&to, Procedure::Interpolate { progress: 0.5 })
-            .unwrap(),
-        Transform(vec![TransformOperation::Skew(
-            Angle::from_radians(50.0),
-            Some(Angle::from_radians(50.0)),
-        )])
-    );
-}
diff --git a/tests/unit/style/custom_properties.rs b/tests/unit/style/custom_properties.rs
index b24ca3b132a6..5b5741d26905 100644
--- a/tests/unit/style/custom_properties.rs
+++ b/tests/unit/style/custom_properties.rs
@@ -7,30 +7,30 @@ use servo_arc::Arc;
 use style::custom_properties::{
     CssEnvironment, CustomPropertiesBuilder, CustomPropertiesMap, Name, SpecifiedValue,
 };
-use style::properties::CustomDeclarationValue;
+use style::properties::{CustomDeclaration, CustomDeclarationValue};
+use style::stylesheets::Origin;
 use test::{self, Bencher};
 
 fn cascade(
     name_and_value: &[(&str, &str)],
     inherited: Option<&Arc<CustomPropertiesMap>>,
 ) -> Option<Arc<CustomPropertiesMap>> {
-    let values = name_and_value
+    let declarations = name_and_value
         .iter()
         .map(|&(name, value)| {
             let mut input = ParserInput::new(value);
             let mut parser = Parser::new(&mut input);
-            (
-                Name::from(name),
-                SpecifiedValue::parse(&mut parser).unwrap(),
-            )
+            let name = Name::from(name);
+            let value = CustomDeclarationValue::Value(SpecifiedValue::parse(&mut parser).unwrap());
+            CustomDeclaration { name, value }
         })
         .collect::<Vec<_>>();
 
     let env = CssEnvironment;
     let mut builder = CustomPropertiesBuilder::new(inherited, &env);
 
-    for &(ref name, ref val) in &values {
-        builder.cascade(name, &CustomDeclarationValue::Value(val.clone()));
+    for declaration in &declarations {
+        builder.cascade(declaration, Origin::Author);
     }
 
     builder.build()