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-rw-r--r--gfx/wr/wrench/reftests/scrolling/viewport-offset.yaml23
1 files changed, 23 insertions, 0 deletions
diff --git a/gfx/wr/wrench/reftests/scrolling/viewport-offset.yaml b/gfx/wr/wrench/reftests/scrolling/viewport-offset.yaml
new file mode 100644
index 0000000000..171e69a63d
--- /dev/null
+++ b/gfx/wr/wrench/reftests/scrolling/viewport-offset.yaml
@@ -0,0 +1,23 @@
+# The test assures that the viewport offset is correctly getting
+# the reference_frame_relative_offset applied when flattening
+# a scroll frame.
+---
+root:
+ items:
+ - type: stacking-context
+ bounds: 0 100 0 0
+ items:
+ - type: scroll-frame
+ id: 2
+ bounds: 0 0 1000 1000
+ clip-to-frame: true
+ items:
+ - type: sticky-frame
+ bounds: 0 -50 1000 50
+ margin-top: -50
+ vertical-offset-bounds: [0, 2000]
+ items:
+ - type: rect
+ bounds: 0 -50 1000 100
+ color: red
+ clip-chain: [2]