Fix hue clamping in Context2D

It goes from 0..359, not 0..255.

Task-number: QTBUG-47894
Change-Id: I0612a9d5e4999afae7703b5c49741b94fb0da07f
Reviewed-by: Mitch Curtis <mitch.curtis@theqtcompany.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/tests/auto/quick/qquickcanvasitem/data/tst_context.qml b/tests/auto/quick/qquickcanvasitem/data/tst_context.qml
index f266c16d76..566ad9d3d5 100644
--- a/tests/auto/quick/qquickcanvasitem/data/tst_context.qml
+++ b/tests/auto/quick/qquickcanvasitem/data/tst_context.qml
@@ -182,4 +182,22 @@ Canvas {
             }
         }
     }
+
+    TestCase {
+        name: "Colors"
+        when: canvas.available
+
+        function test_colors() {
+            wait(100);
+            compare(contextSpy.count, 1);
+
+            var ctx = canvas.getContext("2d");
+            // QTBUG-47894
+            ctx.strokeStyle = 'hsl(255, 100%, 50%)';
+            var c1 = ctx.strokeStyle.toString();
+            ctx.strokeStyle = 'hsl(320, 100%, 50%)';
+            var c2 = ctx.strokeStyle.toString();
+            verify(c1 !== c2);
+        }
+    }
 }