042047b96f
Automatic update from web-platform-tests Test getRangeAt() returning the same object (#29773) * Test getRangeAt() returning the same object * add test for different ranges * add no range test * syntax update -- wpt-commits: 0713d2563a42bc88c0de0aee3d7ca9868b59a2a5 wpt-pr: 29773
33 lines
1.0 KiB
HTML
33 lines
1.0 KiB
HTML
<!DOCTYPE html>
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<title>The getRangeAt method</title>
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<script src=/resources/testharness.js></script>
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<script src=/resources/testharnessreport.js></script>
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<link rel="help" href="https://w3c.github.io/selection-api/#dom-selection-getrangeat">
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<body>
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<script>
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const sel = getSelection();
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test(function() {
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var range = document.createRange();
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sel.addRange(range);
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assert_throws_dom("INDEX_SIZE_ERR", function() { sel.getRangeAt(-1); })
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assert_throws_dom("INDEX_SIZE_ERR", function() { sel.getRangeAt(1); })
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}, "Only supports index 0");
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test(() => {
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sel.removeAllRanges();
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assert_throws_dom("INDEX_SIZE_ERR", () => sel.getRangeAt(0))
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}, "Throws when with no range");
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test(() => {
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sel.addRange(document.createRange());
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assert_equals(sel.getRangeAt(0), sel.getRangeAt(0));
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}, "Returns the same range object when with no selection change");
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test(() => {
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const range = sel.getRangeAt(0);
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sel.collapse(document.body);
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assert_not_equals(range, sel.getRangeAt(0));
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}, "Returns a different range object when with selection change");
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</script>
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