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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /intersection-observer/observer-exceptions.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<meta name="viewport" content="width=device-width,initial-scale=1">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
test(function () {
assert_throws_js(RangeError, function() {
new IntersectionObserver(e => {}, {threshold: [1.1]})
})
}, "IntersectionObserver constructor with { threshold: [1.1] }");
test(function () {
assert_throws_js(TypeError, function() {
new IntersectionObserver(e => {}, {threshold: ["foo"]})
})
}, 'IntersectionObserver constructor with { threshold: ["foo"] }');
test(function () {
assert_throws_dom("SYNTAX_ERR", function() {
new IntersectionObserver(e => {}, {rootMargin: "1"})
})
}, 'IntersectionObserver constructor with { rootMargin: "1" }');
test(function () {
assert_throws_dom("SYNTAX_ERR", function() {
new IntersectionObserver(e => {}, {rootMargin: "2em"})
})
}, 'IntersectionObserver constructor with { rootMargin: "2em" }');
test(function () {
assert_throws_dom("SYNTAX_ERR", function() {
new IntersectionObserver(e => {}, {rootMargin: "auto"})
})
}, 'IntersectionObserver constructor with { rootMargin: "auto" }');
test(function () {
assert_throws_dom("SYNTAX_ERR", function() {
new IntersectionObserver(e => {}, {rootMargin: "calc(1px + 2px)"})
})
}, 'IntersectionObserver constructor with { rootMargin: "calc(1px + 2px)" }');
test(function () {
assert_throws_dom("SYNTAX_ERR", function() {
new IntersectionObserver(e => {}, {rootMargin: "1px !important"})
})
}, 'IntersectionObserver constructor with { rootMargin: "1px !important" }');
test(function () {
assert_throws_dom("SYNTAX_ERR", function() {
new IntersectionObserver(e => {}, {rootMargin: "1px 1px 1px 1px 1px"})
})
}, 'IntersectionObserver constructor with { rootMargin: "1px 1px 1px 1px 1px" }');
test(function () {
assert_throws_js(TypeError, function() {
let observer = new IntersectionObserver(c => {}, {});
observer.observe("foo");
})
}, 'IntersectionObserver.observe("foo")');
</script>