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| -rw-r--r-- | layout/reftests/image/image-object-fit-with-background-2.html | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/layout/reftests/image/image-object-fit-with-background-2.html b/layout/reftests/image/image-object-fit-with-background-2.html new file mode 100644 index 0000000000..6f0219a289 --- /dev/null +++ b/layout/reftests/image/image-object-fit-with-background-2.html @@ -0,0 +1,40 @@ +<!DOCTYPE html> +<!-- + Any copyright is dedicated to the Public Domain. + http://creativecommons.org/publicdomain/zero/1.0/ +--> +<!-- + This testcase ensures that we paint the background around an opaque image, + when the image is kept from filling the container via 'object-fit' (and + the img element is fragmented). This is an interesting case because, by + default, images fill their container, which means we can often optimize + away the background completely. BUT, if "object-fit" prevents the image + from filling its container, we can't optimize away the background; it need + to be painted in the uncovered area. +--> +<html class="reftest-paged"> + <head> + <meta charset="utf-8"> + <style type="text/css"> + img.test { + background: salmon; + object-fit: none; + width: 32px; + /* We make the height 6in larger than the image's intrinsic height, + * which gives us the following happy results: + * (1) the <img> will split over several 3in tall reftest-paged cards + * (so, we get to test fragmentation). + * (2) the image pixels end up on the second fragment (not the first), + * so we get to test image-data painting on later fragments. + * (3) the reference case can easily match us using a simple img + * with 3in-tall divs before & after it. + */ + height: calc(32px + 6in); + display: block; /* Required for fragmentation */ + } + </style> + </head> + <body> + <img class="test" src="blue-32x32.png"> + </body> +</html> |