1 files changed, 44 insertions, 0 deletions
diff --git a/servo/tests/unit/style/parsing/inherited_text.rs b/servo/tests/unit/style/parsing/inherited_text.rs
new file mode 100644
index 0000000000..abcbe5d091
--- /dev/null
+++ b/servo/tests/unit/style/parsing/inherited_text.rs
@@ -0,0 +1,44 @@
+/* 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 https://mozilla.org/MPL/2.0/. */
+
+use parsing::parse;
+use style::values::generics::text::Spacing;
+
+#[test]
+fn negative_letter_spacing_should_parse_properly() {
+    use style::properties::longhands::letter_spacing;
+    use style::values::specified::length::{Length, NoCalcLength, FontRelativeLength};
+
+    let negative_value = parse_longhand!(letter_spacing, "-0.5em");
+    let expected = Spacing::Value(Length::NoCalc(NoCalcLength::FontRelative(FontRelativeLength::Em(-0.5))));
+    assert_eq!(negative_value, expected);
+}
+
+#[test]
+fn negative_word_spacing_should_parse_properly() {
+    use style::properties::longhands::word_spacing;
+    use style::values::specified::length::{NoCalcLength, LengthPercentage, FontRelativeLength};
+
+    let negative_value = parse_longhand!(word_spacing, "-0.5em");
+    let expected = Spacing::Value(LengthPercentage::Length(
+        NoCalcLength::FontRelative(FontRelativeLength::Em(-0.5))
+    ));
+    assert_eq!(negative_value, expected);
+}
+
+#[test]
+fn line_height_should_return_number_on_plain_zero() {
+    use style::properties::longhands::line_height;
+
+    let result = parse(line_height::parse, "0").unwrap();
+    assert_eq!(result, parse_longhand!(line_height, "0"));
+}
+
+#[test]
+fn line_height_should_return_length_on_length_zero() {
+    use style::properties::longhands::line_height;
+
+    let result = parse(line_height::parse, "0px").unwrap();
+    assert_eq!(result, parse_longhand!(line_height, "0px"));
+}