summaryrefslogtreecommitdiffstats
path: root/dom/base/test/meta_viewport/test_meta_viewport_initial_scale_0_5.html
diff options
context:
space:
mode:
Diffstat (limited to 'dom/base/test/meta_viewport/test_meta_viewport_initial_scale_0_5.html')
-rw-r--r--dom/base/test/meta_viewport/test_meta_viewport_initial_scale_0_5.html33
1 files changed, 33 insertions, 0 deletions
diff --git a/dom/base/test/meta_viewport/test_meta_viewport_initial_scale_0_5.html b/dom/base/test/meta_viewport/test_meta_viewport_initial_scale_0_5.html
new file mode 100644
index 0000000000..99fb5c1d36
--- /dev/null
+++ b/dom/base/test/meta_viewport/test_meta_viewport_initial_scale_0_5.html
@@ -0,0 +1,33 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+ <meta charset="utf-8">
+ <title>initial-scale=0.5 in meta viewport</title>
+ <script src="/tests/SimpleTest/SimpleTest.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+ <meta name="viewport" content="initial-scale=0.5">
+ <script src="viewport_helpers.js"></script>
+</head>
+<body>
+ <p>initial-scale=0.5</p>
+ <script type="application/javascript">
+ "use strict";
+
+ add_task(async function initial_scale_0_5() {
+ await SpecialPowers.pushPrefEnv(scaleRatio(1.0));
+
+ let info = getViewportInfo(800, 480);
+ // 'min-width' is 'display width / initial-scale', thus the value will be
+ // bigger than the display width in the case where the initial-scale is
+ // less than 1, thus the final viewport width will be the 'min-width'.
+ // See 'Resolve initial width and height from min/max descriptors' section
+ // in the spec for more detail.
+ // height is calculated by the same rule.
+ // https://drafts.csswg.org/css-device-adapt/#resolve-initial-width-height
+ is(info.width, 1600, "width should be scaled by 1 / initial-scale");
+ is(info.height, 960, "height should be scaled by 1 / initial-scale");
+ is(info.defaultZoom, 0.5, "initial-scale should be 0.5");
+ });
+ </script>
+</body>
+</html>