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<!DOCTYPE html>
<html>
<head>
<title>CSS Selectors Invalidation: :is()</title>
<link rel="author" title="Victoria Su" href="mailto:victoriaytsu@google.com">
<link rel="help" href="https://drafts.csswg.org/selectors-4/#matches">
<meta name="assert" content="This tests that the :is() selector is effective">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
.b {
color: yellow;
}
/*Simple selector arguments */
.a :is(.b, .c) {
color: red;
}
/*Compound selector arguments */
.a :is(.c#d, .e) {
color: green;
}
/* Complex selector arguments */
.a .g>.b {
color: black;
}
.a :is(.e+.f, .g>.b, .h) {
color: blue;
}
.g>.b {
color: black;
}
.a .h {
color: black;
}
/* Nested */
.a+.c>.e {
color: black;
}
.c>.a+.e {
color: black;
}
.a+:is(.b+.f, :is(.c>.e, .g)) {
color: red;
}
.c>.e {
color: black;
}
/* Non-Subject Compound */
.a:is(.b *) .c{
color: blue;
}
</style>
</head>
<body>
<div id="a1">
<div class="b" id="b1">
Red
</div>
<div class="c" id="c1">
Red
</div>
<div class="c" id="d">
Green
</div>
<div class="e" id="e1">
Green
</div>
<div class="f" id="f1">
Blue
</div>
<div class="g">
<div class="b" id="b2">
Blue
<div class="b" id="b3">
Red
</div>
</div>
</div>
<div class="h" id="h1">
Blue
</div>
</div>
<div class="c" id="c2">
<div id="a2"></div>
<div class="e" id="e2">
Red
</div>
</div>
<div id=b4>
<div>
<div class=a>
<div class=c id="c3">
Blue
</div>
</div>
</div>
</div>
<script>
document.body.offsetTop;
var black = "rgb(0, 0, 0)";
var blue = "rgb(0, 0, 255)";
var green = "rgb(0, 128, 0)";
var red = "rgb(255, 0, 0)";
var yellow = "rgb(255, 255, 0)";
test(() => {
assert_equals(getComputedStyle(b1).color, yellow);
assert_equals(getComputedStyle(b2).color, black);
assert_equals(getComputedStyle(b3).color, yellow);
assert_equals(getComputedStyle(c1).color, black);
assert_equals(getComputedStyle(d).color, black);
assert_equals(getComputedStyle(e1).color, black);
assert_equals(getComputedStyle(e2).color, black);
assert_equals(getComputedStyle(f1).color, black);
assert_equals(getComputedStyle(h1).color, black);
}, "Preconditions.");
test(() => {
a1.className = "a";
assert_equals(getComputedStyle(b1).color, red);
assert_equals(getComputedStyle(b3).color, red);
assert_equals(getComputedStyle(c1).color, red);
}, "Invalidate :is() for simple selector arguments.");
test(() => {
a1.className = "a";
assert_equals(getComputedStyle(d).color, green);
}, "Invalidate :is() for compound selector arguments.");
test(() => {
a1.className = "a";
assert_equals(getComputedStyle(b2).color, blue);
assert_equals(getComputedStyle(b3).color, red);
assert_equals(getComputedStyle(f1).color, blue);
}, "Invalidate :is() for complex selector arguments.");
test(() => {
a1.className = "a";
assert_equals(getComputedStyle(e2).color, black);
a2.className = "a";
assert_equals(getComputedStyle(e2).color, red);
}, "Invalidate nested :is().");
test(() => {
a1.className = "a";
assert_equals(getComputedStyle(b2).color, blue);
assert_equals(getComputedStyle(h1).color, blue);
}, "Test specificity of :is().");
test(() => {
b4.className = "b";
assert_equals(getComputedStyle(c3).color, blue);
b4.className = "";
assert_equals(getComputedStyle(c3).color, red);
b4.className = "b";
assert_equals(getComputedStyle(c3).color, blue);
}, "Invalidate :is() in non-subject compound");
</script>
</body>
</html>
|
