diff --git a/tests/unit/style/parsing/mod.rs b/tests/unit/style/parsing/mod.rs
index b75e3a7ce42..6f76b2efea6 100644
--- a/tests/unit/style/parsing/mod.rs
+++ b/tests/unit/style/parsing/mod.rs
@@ -19,9 +19,15 @@ where F: for<'t> Fn(&ParserContext, &mut Parser<'static, 't>) -> Result<T, Parse
 fn parse_input<'i: 't, 't, T, F>(f: F, input: &'t mut ParserInput<'i>) -> Result<T, ParseError<'i>>
 where F: Fn(&ParserContext, &mut Parser<'i, 't>) -> Result<T, ParseError<'i>> {
     let url = ::servo_url::ServoUrl::parse("http://localhost").unwrap();
-    let context = ParserContext::new(Origin::Author, &url, Some(CssRuleType::Style),
-                                     ParsingMode::DEFAULT,
-                                     QuirksMode::NoQuirks, None);
+    let context = ParserContext::new(
+        Origin::Author,
+        &url,
+        Some(CssRuleType::Style),
+        ParsingMode::DEFAULT,
+        QuirksMode::NoQuirks,
+        None,
+        None,
+    );
     let mut parser = Parser::new(input);
     f(&context, &mut parser)
 }
diff --git a/tests/unit/style/properties/mod.rs b/tests/unit/style/properties/mod.rs
index 725aabc42a4..5210b663168 100644
--- a/tests/unit/style/properties/mod.rs
+++ b/tests/unit/style/properties/mod.rs
@@ -24,9 +24,15 @@ where
     F: Fn(&ParserContext, &mut Parser<'i, 't>) -> Result<T, ParseError<'i>>,
 {
     let url = ::servo_url::ServoUrl::parse("http://localhost").unwrap();
-    let context = ParserContext::new(Origin::Author, &url, Some(CssRuleType::Style),
-                                     ParsingMode::DEFAULT,
-                                     QuirksMode::NoQuirks, None);
+    let context = ParserContext::new(
+        Origin::Author,
+        &url,
+        Some(CssRuleType::Style),
+        ParsingMode::DEFAULT,
+        QuirksMode::NoQuirks,
+        None,
+        None,
+    );
     let mut parser = Parser::new(input);
     f(&context, &mut parser)
 }
diff --git a/tests/unit/style/viewport.rs b/tests/unit/style/viewport.rs
index 9243dbcb403..a8d01651c3d 100644
--- a/tests/unit/style/viewport.rs
+++ b/tests/unit/style/viewport.rs
@@ -301,9 +301,15 @@ fn multiple_stylesheets_cascading() {
 #[test]
 fn constrain_viewport() {
     let url = ServoUrl::parse("http://localhost").unwrap();
-    let context = ParserContext::new(Origin::Author, &url, Some(CssRuleType::Viewport),
-                                     ParsingMode::DEFAULT,
-                                     QuirksMode::NoQuirks, None);
+    let context = ParserContext::new(
+        Origin::Author,
+        &url,
+        Some(CssRuleType::Viewport),
+        ParsingMode::DEFAULT,
+        QuirksMode::NoQuirks,
+        None,
+        None,
+    );
 
     macro_rules! from_css {
         ($css:expr) => {