diff options
Diffstat (limited to 'layout/style/test/test_border_device_pixel_rounding_initial_style.html')
| -rw-r--r-- | layout/style/test/test_border_device_pixel_rounding_initial_style.html | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/layout/style/test/test_border_device_pixel_rounding_initial_style.html b/layout/style/test/test_border_device_pixel_rounding_initial_style.html new file mode 100644 index 0000000000..a8b5b0546d --- /dev/null +++ b/layout/style/test/test_border_device_pixel_rounding_initial_style.html @@ -0,0 +1,20 @@ +<!doctype html> +<script src="/tests/SimpleTest/SimpleTest.js"></script> +<link rel="stylesheet" href="/tests/SimpleTest/test.css"> +<iframe id="frame"></iframe> +<script> +SimpleTest.waitForExplicitFinish(); +SpecialPowers.pushPrefEnv({ "set": [["layout.css.devPixelsPerPx", "1.25"]] }, + function() { + is(window.devicePixelRatio, 1.25, "devPixelsPerPx should work"); + const frame = document.getElementById("frame"); + frame.addEventListener("load", function() { + let doc = frame.contentDocument; + let win = frame.contentWindow; + is(win.devicePixelRatio, 1.25, "devPixelsPerPx should work inside the frame"); + is(win.getComputedStyle(doc.querySelector("div")).borderTopWidth, "0.8px", "Shouldn't incorrectly round with 60 app units after getting the initial style"); + SimpleTest.finish(); + }); + frame.srcdoc = "<div style='border: 1px solid; display: none;'></div>"; + }); +</script> |