chromium/third_party/blink/web_tests/fast/css/deprecated-flexbox-auto-min-size.html

<!DOCTYPE html>
<style>
.flexbox {
    display: -webkit-box;
    width: 30px;
    height: 30px;
}
.item {
    -webkit-box-flex: 1;
    width: 20px;
    height: 20px;
}
.item:nth-child(1) {
    background-color: salmon;
    min-width: 0;
    min-height: 0;
}
.item:nth-child(2) {
    background-color: lightblue;
    min-width: auto;
    min-height: auto;
}
.item:nth-child(3) {
    background-color: orange;
    min-width: 30px;
    min-height: 30px;
}
.inline {
    display: inline-block;
    width: 20px;
    height: 20px;
}
.vertical {
    -webkit-box-orient: vertical;
}
</style>

<script src="../../resources/check-layout.js"></script>
<body onload="checkLayout('.flexbox')">

Tests that deprecated flexboxes treat min-width/min-height:auto as 0px.

<div class="flexbox horizontal">
    <div class="item" data-expected-width=0 data-expected-height=20><div class="inline"></div></div>
    <div class="item" data-expected-width=0 data-expected-height=20><div class="inline"></div></div>
    <div class="item" data-expected-width=30 data-expected-height=30><div class="inline"></div></div>
</div>

<div class="flexbox vertical">
    <div class="item" data-expected-width=20 data-expected-height=0><div class="inline"></div></div>
    <div class="item" data-expected-width=20 data-expected-height=0><div class="inline"></div></div>
    <div class="item" data-expected-width=30 data-expected-height=30><div class="inline"></div></div>
</div>
</body>