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<!doctype html>
<title>Test for :placeholder-shown on input elements and invalid values.</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/EventUtils.js"></script>
<style>
input {
border: 1px solid purple;
}
input:placeholder-shown {
border-color: blue;
}
</style>
<input type="number" placeholder="foo">
<script>
SimpleTest.waitForExplicitFinish();
SimpleTest.waitForFocus(function() {
test();
SimpleTest.finish();
});
function test() {
let input = document.querySelector('input');
input.focus();
is(getComputedStyle(input).borderLeftColor, "rgb(0, 0, 255)",
":placeholder-shown should apply")
sendString("x");
isnot(getComputedStyle(input).borderLeftColor, "rgb(0, 0, 255)",
":placeholder-shown should not apply, even though the value is invalid")
}
</script>
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