css/css-easing/step-timing-functions-syntax.html

<!DOCTYPE html>
<meta charset=utf-8>
<meta name="assert"
content="This test checks the syntax output of step timing functions" />
<title>Step timing function syntax tests</title>
<link rel="help"
      href="https://drafts.csswg.org/css-easing-1/#step-timing-functions">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="testcommon.js"></script>
<script src="/css/support/parsing-testcommon.js"></script>
<body>
<div id="log"></div>
<script>
"use strict";

test_valid_value("animation-timing-function", "step-start", "steps(1, start)");
test_valid_value("animation-timing-function", "step-end", "steps(1)");
test_valid_value("animation-timing-function", "steps(1, start)");
test_valid_value("animation-timing-function", "steps(1, end)", "steps(1)");
test_valid_value("animation-timing-function", "steps(1, jump-start)");
test_valid_value("animation-timing-function", "steps(1, jump-end)", "steps(1)");
test_valid_value("animation-timing-function", "steps(1, jump-both)");
test_valid_value("animation-timing-function", "steps(2, jump-none)");

test_invalid_value("animation-timing-function", "steps(0, start)");
test_invalid_value("animation-timing-function", "steps(0, end)");
test_invalid_value("animation-timing-function", "steps(0, jump-start)");
test_invalid_value("animation-timing-function", "steps(0, jump-end)");
test_invalid_value("animation-timing-function", "steps(0, jump-both)");
test_invalid_value("animation-timing-function", "steps(1, jump-none)");
test_invalid_value("animation-timing-function", "steps(calc(0/0), jump-none)");

</script>
</body>