From a7eb78d249b440be1091419fb3de6aa387fb8e88 Mon Sep 17 00:00:00 2001
From: Connor Skees <connor1skees@gmail.com>
Date: Mon, 17 Aug 2020 02:21:21 -0400
Subject: [PATCH] fix bug in generating complement for colors with hue under
 180deg

---
 src/color/mod.rs |  8 ++------
 tests/color.rs   | 15 ++++++++++-----
 2 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/src/color/mod.rs b/src/color/mod.rs
index 38db906..e8eb1dc 100644
--- a/src/color/mod.rs
+++ b/src/color/mod.rs
@@ -465,12 +465,8 @@ impl Color {
 
     pub fn complement(&self) -> Self {
         let (hue, saturation, luminance, alpha) = self.as_hsla();
-        let hue = if hue > Number::from(180) {
-            Number::from(360) - hue
-        } else {
-            hue + Number::from(180)
-        };
-        Color::from_hsla(hue, saturation, luminance, alpha)
+
+        Color::from_hsla(hue + Number::from(180), saturation, luminance, alpha)
     }
 }
 
diff --git a/tests/color.rs b/tests/color.rs
index 66f5057..91832d2 100644
--- a/tests/color.rs
+++ b/tests/color.rs
@@ -387,16 +387,21 @@ test!(
     "a {\n  color: gray;\n}\n"
 );
 test!(grayscale_number, "a {\n  color: grayscale(15%);\n}\n");
-// handle special functions better!
-// test!(
-//     grayscale_number_casing,
-//     "a {\n  color: grAyscaLe(15%);\n}\n"
-// );
+test!(
+    #[ignore]
+    grayscale_number_casing,
+    "a {\n  color: grAyscaLe(15%);\n}\n"
+);
 test!(
     complement,
     "a {\n  color: complement(red);\n}\n",
     "a {\n  color: aqua;\n}\n"
 );
+test!(
+    complement_hue_under_180,
+    "a {\n  color: complement(#abcdef);\n}\n",
+    "a {\n  color: #efcdab;\n}\n"
+);
 test!(
     mix_no_weight,
     "a {\n  color: mix(#f00, #00f);\n}\n",