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diff --git a/testing/web-platform/tests/css/css-flexbox/flexbox-min-height-auto-002c.html b/testing/web-platform/tests/css/css-flexbox/flexbox-min-height-auto-002c.html new file mode 100644 index 0000000000..3093c65e5f --- /dev/null +++ b/testing/web-platform/tests/css/css-flexbox/flexbox-min-height-auto-002c.html @@ -0,0 +1,71 @@ +<!DOCTYPE html> +<!-- + Any copyright is dedicated to the Public Domain. + http://creativecommons.org/publicdomain/zero/1.0/ +--> +<html> + <head> + <meta charset="utf-8"> + <title>CSS Test: Testing min-height:auto</title> + <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"> + <link rel="help" href="http://www.w3.org/TR/css-flexbox-1/#min-size-auto"> + <link rel="match" href="flexbox-min-height-auto-002-ref.html"> +<!-- + This testcase tests the used value of "min-height:auto" (the property's + initial value) on flex items in a vertical flex container. + + It's supposed to resolve to the smallest of: + a) The used 'flex-basis' (taken from 'height'), if 'flex-basis' is at its + initial value. + b) The computed 'max-height' property + c) If there's no intrinsic aspect ratio: the item's min-content height. + d) If there is an intrinsic aspect ratio: the item's height derived from + the ratio & constraints in the other dimension. + + We measure what the used value is by putting flex items in a small flex + container, which will shrink its items down to their min-height. + + This test checks for situations where we should resolve the min-height as + (d) above, with "constraints in the other dimension" being + max-width-clamped "width". +--> + <style> + .flexbox { + display: flex; + flex-direction: column; + height: 1px; /* No available space; shrink flex items to min-height */ + margin-right: 2px; /* (Just for spacing things out, visually) */ + float: left; + } + + .flexbox > * { + /* Flex items have purple border: */ + border: 2px dotted purple; + /* Flex items have sizing constraint in cross axis: */ + max-width: 30px; + width: 60px; + } + </style> + </head> + <body> + <!-- Check for min-height:auto resolving correctly when the smallest + candidate value is: --> + + <!-- *** (d) (with intrinsic aspect ratio) The height derived from ratio + and constraints in the other dimension *** --> + <!-- First, with a larger candidate 'flex-basis' value (from 'height') --> + <div class="flexbox"> + <img style="height: 100px" src="support/solidblue.png" alt="blue square"> + </div> + <!-- ...and now with a larger explicit 'flex-basis' value (which shouldn't + be considered for 'min-height:auto' anyway) --> + <div class="flexbox"> + <img style="flex-basis: 100px" src="support/solidblue.png" alt="blue square"> + </div> + <!-- ...and now with a smaller explicit 'flex-basis' value (which shouldn't + be considered for 'min-height:auto' anyway) --> + <div class="flexbox"> + <img style="flex-basis: 10px" src="support/solidblue.png" alt="blue square"> + </div> + </body> +</html> |