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<!DOCTYPE html>
<link rel="help" href="https://drafts.csswg.org/css-values-5/#container-progress-func">
<link rel="author" title="sakhapov@chromium.org">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../support/numeric-testcommon.js"></script>
<div id="out-of-scope-container"></div>
<div id="extra-container">
<div id="outer-container">
<div id="inner-container">
<div id=target></div>
</div>
</div>
</div>
<style>
:root {
font-size: 10px;
}
#out-of-scope-container {
container: my-container-3 / size;
width: 1px;
height: 1px;
}
#extra-container {
container: my-container-2 / size;
width: 5051px;
height: 1337px;
}
#outer-container {
container: my-container / size;
width: 322px;
height: 228px;
}
#inner-container {
container-type: size;
width: 228px;
height: 322px;
}
#target {
font-size: 10px;
}
</style>
<script>
let width = window.innerWidth;
let height = window.innerHeight;
let extraWidth = 5051;
let extraHeight = 1337;
let innerWidth = 228;
let innerHeight = 322;
let outerWidth = 322;
let outerHeight = 228;
// Identity tests
test_math_used('container-progress(height from 0px to 1px)', innerHeight, {type:'number'});
test_math_used('container-progress(width of my-container from 0px to 1px)', outerWidth, {type:'number'});
// Nestings
test_math_used('container-progress(height from container-progress(height from 0px to 1px) * 1px to container-progress(height from 0px to 1px) * 1px)', '0', {type:'number'});
test_math_used('container-progress(height from container-progress(height from 0px to 1px) * 0.5px to container-progress(height from 0px to 1px) * 1px)', '1', {type:'number'});
test_math_used('container-progress(height from container-progress(width of my-container from 0px to 1px) * 1px to container-progress(height of my-container-2 from 0px to 1px) * 1px)', (innerHeight - outerWidth) / (extraHeight - outerWidth), {type:'number'});
// General calculations
test_math_used('calc(container-progress(width from 0px to 50px) * 10px + 100px)', (innerWidth / 50 * 10 + 100) + 'px');
test_math_used('calc(container-progress(height from 10px to sign(50px - 500em) * 10px))', (innerHeight - 10) / (-10 - 10), {type:'number'});
test_math_used('calc(container-progress(width of my-container from 0px to 50px) * 10px + 100px)', (outerWidth / 50 * 10 + 100) + 'px');
test_math_used('calc(container-progress(height of my-container from 10px to sign(50px - 500em) * 10px))', (outerHeight - 10) / (-10 - 10), {type:'number'});
// Fallback
test_math_used('container-progress(width of non-existing-container from 0px to 1px)', width, {type:'number'});
test_math_used('container-progress(height of non-existing-container from 0px to 1px)', height, {type:'number'});
test_math_used('container-progress(width of out-of-scope-container from 0px to 1px)', width, {type:'number'});
test_math_used('container-progress(height of out-of-scope-container from 0px to 1px)', height, {type:'number'});
// Type checking
test_math_used('calc(container-progress(width from 0px to 1px) * 1px)', innerWidth + 'px');
test_math_used('calc(container-progress(height of my-container from 0px to 1px) * 1s)', outerHeight + 's', {type:'time'});
test_math_used('calc(container-progress(width of my-container-2 from 0px to 1px) * 1deg)', extraWidth + 'deg', {type:'angle', approx:0.001});
</script>
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