class MyCustomElement extends HTMLElement {};
customElements.define("custom-element", MyCustomElement);
// For documentation of the format, see README in this directory.
var browserTests = [
["foo[]",
    [["forwarddelete",""]],
    "foo{}",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<span>foo[]</span>",
    [["forwarddelete",""]],
    "<span>foo</span>{}",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<p>foo[]</p>",
    [["forwarddelete",""]],
    "<p>foo{}</p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]bar",
    [["forwarddelete",""]],
    "foo[]ar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<span>foo</span>{}<span>bar</span>",
    [["forwarddelete",""]],
    "<span>foo</span><span>{}ar</span>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<span>foo[</span><span>]bar</span>",
    [["forwarddelete",""]],
    "<span>foo[]</span><span>bar</span>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<span style=display:none>bar</span>baz",
    [["stylewithcss","true"],["forwarddelete",""]],
    "foo{}az",
    [true,true],
    {"stylewithcss":[false,false,"",false,true,""],"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<span style=display:none>bar</span>baz",
    [["stylewithcss","false"],["forwarddelete",""]],
    "foo{}az",
    [true,true],
    {"stylewithcss":[false,true,"",false,false,""],"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<script>bar</script>baz",
    [["forwarddelete",""]],
    "foo{}az",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["fo[]&ouml;bar",
    [["forwarddelete",""]],
    "fo[]bar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["fo[]o&#x308;bar",
    [["forwarddelete",""]],
    "fo[]bar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["fo[]o&#x308;&#x327;bar",
    [["forwarddelete",""]],
    "fo[]bar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["[]&ouml;bar",
    [["forwarddelete",""]],
    "{}bar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["[]o&#x308;bar",
    [["forwarddelete",""]],
    "{}bar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["[]o&#x308;&#x327;bar",
    [["forwarddelete",""]],
    "{}bar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["[]&#x5e9;&#x5c1;&#x5b8;&#x5dc;&#x5d5;&#x5b9;&#x5dd;",
    [["forwarddelete",""]],
    "{}לוֹם",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["&#x5e9;&#x5c1;&#x5b8;&#x5dc;[]&#x5d5;&#x5b9;&#x5dd;",
    [["forwarddelete",""]],
    "שָׁל[]ם",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<p>foo[]</p><p>bar</p>",
    [["defaultparagraphseparator","div"],["forwarddelete",""]],
    "<p>foo{}bar</p>",
    [true,true],
    {"defaultparagraphseparator":[false,false,"div",false,false,"div"],"forwarddelete":[false,false,"",false,false,""]}],
["<p>foo[]</p><p>bar</p>",
    [["defaultparagraphseparator","p"],["forwarddelete",""]],
    "<p>foo{}bar</p>",
    [true,true],
    {"defaultparagraphseparator":[false,false,"div",false,false,"p"],"forwarddelete":[false,false,"",false,false,""]}],
["<p>foo[]</p>bar",
    [["forwarddelete",""]],
    "<p>foo{}bar</p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<p>bar</p>",
    [["defaultparagraphseparator","div"],["forwarddelete",""]],
    "foo{}bar",
    [true,true],
    {"defaultparagraphseparator":[false,false,"p",false,false,"div"],"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<p>bar</p>",
    [["defaultparagraphseparator","p"],["forwarddelete",""]],
    "foo{}bar",
    [true,true],
    {"defaultparagraphseparator":[false,false,"div",false,false,"p"],"forwarddelete":[false,false,"",false,false,""]}],
["<p>foo[]<br></p><p>bar</p>",
    [["defaultparagraphseparator","div"],["forwarddelete",""]],
    "<p>foo{}bar</p>",
    [true,true],
    {"defaultparagraphseparator":[false,false,"p",false,false,"div"],"forwarddelete":[false,false,"",false,false,""]}],
["<p>foo[]<br></p><p>bar</p>",
    [["defaultparagraphseparator","p"],["forwarddelete",""]],
    "<p>foo{}bar</p>",
    [true,true],
    {"defaultparagraphseparator":[false,false,"div",false,false,"p"],"forwarddelete":[false,false,"",false,false,""]}],
["<p>foo[]<br></p>bar",
    [["forwarddelete",""]],
    "<p>foo{}bar</p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<br><p>bar</p>",
    [["defaultparagraphseparator","div"],["forwarddelete",""]],
    "foo{}bar",
    [true,true],
    {"defaultparagraphseparator":[false,false,"p",false,false,"div"],"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<br><p>bar</p>",
    [["defaultparagraphseparator","p"],["forwarddelete",""]],
    "foo{}bar",
    [true,true],
    {"defaultparagraphseparator":[false,false,"div",false,false,"p"],"forwarddelete":[false,false,"",false,false,""]}],
["<p>{}<br></p>foo",
    [["forwarddelete",""]],
    "<p>{}foo</p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<p>{}<span><br></span></p>foo",
    [["forwarddelete",""]],
    "<p>{}foo</p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo{}<p><br>",
    [["defaultparagraphseparator","div"],["forwarddelete",""]],
    "foo{}",
    [true,true],
    {"defaultparagraphseparator":[false,false,"p",false,false,"div"],"forwarddelete":[false,false,"",false,false,""]}],
["foo{}<p><br>",
    [["defaultparagraphseparator","p"],["forwarddelete",""]],
    "foo{}",
    [true,true],
    {"defaultparagraphseparator":[false,false,"div",false,false,"p"],"forwarddelete":[false,false,"",false,false,""]}],
["foo{}<p><span><br></span>",
    [["defaultparagraphseparator","div"],["forwarddelete",""]],
    "foo{}",
    [true,true],
    {"defaultparagraphseparator":[false,false,"p",false,false,"div"],"forwarddelete":[false,false,"",false,false,""]}],
["foo{}<p><span><br></span>",
    [["defaultparagraphseparator","p"],["forwarddelete",""]],
    "foo{}",
    [true,true],
    {"defaultparagraphseparator":[false,false,"div",false,false,"p"],"forwarddelete":[false,false,"",false,false,""]}],
["foo{}<br><p><br>",
    [["defaultparagraphseparator","div"],["forwarddelete",""]],
    "foo{}",
    [true,true],
    {"defaultparagraphseparator":[false,false,"p",false,false,"div"],"forwarddelete":[false,false,"",false,false,""]}],
["foo{}<br><p><br>",
    [["defaultparagraphseparator","p"],["forwarddelete",""]],
    "foo{}",
    [true,true],
    {"defaultparagraphseparator":[false,false,"div",false,false,"p"],"forwarddelete":[false,false,"",false,false,""]}],
["foo{}<span><br></span><p><br>",
    [["defaultparagraphseparator","div"],["forwarddelete",""]],
    "foo{}",
    [true,true],
    {"defaultparagraphseparator":[false,false,"p",false,false,"div"],"forwarddelete":[false,false,"",false,false,""]}],
["foo{}<span><br></span><p><br>",
    [["defaultparagraphseparator","p"],["forwarddelete",""]],
    "foo{}",
    [true,true],
    {"defaultparagraphseparator":[false,false,"div",false,false,"p"],"forwarddelete":[false,false,"",false,false,""]}],
["foo{}<br><p><span><br></span>",
    [["defaultparagraphseparator","div"],["forwarddelete",""]],
    "foo{}",
    [true,true],
    {"defaultparagraphseparator":[false,false,"p",false,false,"div"],"forwarddelete":[false,false,"",false,false,""]}],
["foo{}<br><p><span><br></span>",
    [["defaultparagraphseparator","p"],["forwarddelete",""]],
    "foo{}",
    [true,true],
    {"defaultparagraphseparator":[false,false,"div",false,false,"p"],"forwarddelete":[false,false,"",false,false,""]}],
["foo{}<span><br></span><p><span><br></span>",
    [["defaultparagraphseparator","div"],["forwarddelete",""]],
    "foo{}",
    [true,true],
    {"defaultparagraphseparator":[false,false,"p",false,false,"div"],"forwarddelete":[false,false,"",false,false,""]}],
["foo{}<span><br></span><p><span><br></span>",
    [["defaultparagraphseparator","p"],["forwarddelete",""]],
    "foo{}",
    [true,true],
    {"defaultparagraphseparator":[false,false,"div",false,false,"p"],"forwarddelete":[false,false,"",false,false,""]}],
["foo{}<p>",
    [["defaultparagraphseparator","div"],["forwarddelete",""]],
    "foo{}",
    [true,true],
    {"defaultparagraphseparator":[false,false,"p",false,false,"div"],"forwarddelete":[false,false,"",false,false,""]}],
["foo{}<p>",
    [["defaultparagraphseparator","p"],["forwarddelete",""]],
    "foo{}",
    [true,true],
    {"defaultparagraphseparator":[false,false,"div",false,false,"p"],"forwarddelete":[false,false,"",false,false,""]}],
["<table><tr><td>[]b</table>foo",
    [["forwarddelete",""]],
    "<table><tbody><tr><td>[]<br></td></tr></tbody></table>foo",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<table><tr><td>{}</table>foo",
    [["forwarddelete",""]],
    "<table><tbody><tr><td>{}</td></tr></tbody></table>foo",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<table><tr><td>{}<br></table>foo",
    [["forwarddelete",""]],
    "<table><tbody><tr><td>{}<br></td></tr></tbody></table>foo",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<table><tr><td>{}<span><br></span></table>foo",
    [["forwarddelete",""]],
    "<table><tbody><tr><td>{}<span><br></span></td></tr></tbody></table>foo",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div><p>foo[]</p></div><p>bar</p>",
    [["defaultparagraphseparator","div"],["forwarddelete",""]],
    "<div><p>foo{}bar</p></div>",
    [true,true],
    {"defaultparagraphseparator":[false,false,"p",false,false,"div"],"forwarddelete":[false,false,"",false,false,""]}],
["<div><p>foo[]</p></div><p>bar</p>",
    [["defaultparagraphseparator","p"],["forwarddelete",""]],
    "<div><p>foo{}bar</p></div>",
    [true,true],
    {"defaultparagraphseparator":[false,false,"div",false,false,"p"],"forwarddelete":[false,false,"",false,false,""]}],
["<p>foo[]</p><div><p>bar</p></div>",
    [["defaultparagraphseparator","div"],["forwarddelete",""]],
    "<p>foo{}bar</p>",
    [true,true],
    {"defaultparagraphseparator":[false,false,"p",false,false,"div"],"forwarddelete":[false,false,"",false,false,""]}],
["<p>foo[]</p><div><p>bar</p></div>",
    [["defaultparagraphseparator","p"],["forwarddelete",""]],
    "<p>foo{}bar</p>",
    [true,true],
    {"defaultparagraphseparator":[false,false,"div",false,false,"p"],"forwarddelete":[false,false,"",false,false,""]}],
["<div><p>foo[]</p></div><div><p>bar</p></div>",
    [["defaultparagraphseparator","div"],["forwarddelete",""]],
    "<div><p>foo{}bar</p></div>",
    [true,true],
    {"defaultparagraphseparator":[false,false,"p",false,false,"div"],"forwarddelete":[false,false,"",false,false,""]}],
["<div><p>foo[]</p></div><div><p>bar</p></div>",
    [["defaultparagraphseparator","p"],["forwarddelete",""]],
    "<div><p>foo{}bar</p></div>",
    [true,true],
    {"defaultparagraphseparator":[false,false,"div",false,false,"p"],"forwarddelete":[false,false,"",false,false,""]}],
["<div><p>foo[]</p></div>bar",
    [["forwarddelete",""]],
    "<div><p>foo{}bar</p></div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<div><p>bar</p></div>",
    [["defaultparagraphseparator","div"],["forwarddelete",""]],
    "foo{}bar",
    [true,true],
    {"defaultparagraphseparator":[false,false,"p",false,false,"div"],"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<div><p>bar</p></div>",
    [["defaultparagraphseparator","p"],["forwarddelete",""]],
    "foo{}bar",
    [true,true],
    {"defaultparagraphseparator":[false,false,"div",false,false,"p"],"forwarddelete":[false,false,"",false,false,""]}],
["<div>foo[]</div><div>bar</div>",
    [["defaultparagraphseparator","div"],["forwarddelete",""]],
    "<div>foo{}bar</div>",
    [true,true],
    {"defaultparagraphseparator":[false,false,"p",false,false,"div"],"forwarddelete":[false,false,"",false,false,""]}],
["<div>foo[]</div><div>bar</div>",
    [["defaultparagraphseparator","p"],["forwarddelete",""]],
    "<div>foo{}bar</div>",
    [true,true],
    {"defaultparagraphseparator":[false,false,"div",false,false,"p"],"forwarddelete":[false,false,"",false,false,""]}],
["<pre>foo[]</pre>bar",
    [["forwarddelete",""]],
    "<pre>foo{}bar</pre>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<br>bar",
    [["forwarddelete",""]],
    "foo{}bar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<b>foo[]</b><br>bar",
    [["forwarddelete",""]],
    "<b>foo</b>{}bar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<hr>bar",
    [["forwarddelete",""]],
    "foo{}bar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<p>foo[]<hr><p>bar",
    [["forwarddelete",""]],
    "<p>foo{}</p><p>bar</p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<p>foo[]</p><br><p>bar</p>",
    [["forwarddelete",""]],
    "<p>foo{}</p><p>bar</p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<p>foo[]</p><br><br><p>bar</p>",
    [["forwarddelete",""]],
    "<p>foo{}</p><br><p>bar</p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<p>foo[]</p><img src=/img/lion.svg><p>bar",
    [["forwarddelete",""]],
    "<p>foo{}<img src=\"/img/lion.svg\"></p><p>bar</p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<img src=/img/lion.svg>bar",
    [["forwarddelete",""]],
    "foo{}bar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<a>bar</a>",
    [["forwarddelete",""]],
    "foo<a>{}ar</a>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<a href=/>bar</a>",
    [["forwarddelete",""]],
    "foo<a href=\"/\">{}ar</a>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<a name=abc>bar</a>",
    [["forwarddelete",""]],
    "foo<a name=\"abc\">{}ar</a>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<a href=/ name=abc>bar</a>",
    [["forwarddelete",""]],
    "foo<a href=\"/\" name=\"abc\">{}ar</a>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<span><a>bar</a></span>",
    [["forwarddelete",""]],
    "foo<span><a>{}ar</a></span>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<span><a href=/>bar</a></span>",
    [["forwarddelete",""]],
    "foo<span><a href=\"/\">{}ar</a></span>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<span><a name=abc>bar</a></span>",
    [["forwarddelete",""]],
    "foo<span><a name=\"abc\">{}ar</a></span>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<span><a href=/ name=abc>bar</a></span>",
    [["forwarddelete",""]],
    "foo<span><a href=\"/\" name=\"abc\">{}ar</a></span>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<a>foo[]</a>bar",
    [["forwarddelete",""]],
    "<a>foo</a>{}ar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<a href=/>foo[]</a>bar",
    [["forwarddelete",""]],
    "<a href=\"/\">foo</a>{}ar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<a name=abc>foo[]</a>bar",
    [["forwarddelete",""]],
    "<a name=\"abc\">foo</a>{}ar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<a href=/ name=abc>foo[]</a>bar",
    [["forwarddelete",""]],
    "<a href=\"/\" name=\"abc\">foo</a>{}ar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo []&nbsp;",
    [["forwarddelete",""]],
    // The last white-space should be converted to an NBSP to keep it visible.
    "foo&nbsp;",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["[]&nbsp; foo",
    [["forwarddelete",""]],
    // The first white-space should be converted to an NBSP to keep it visible.
    "&nbsp;foo",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[] &nbsp;bar",
    [["forwarddelete",""]],
    // The single white-space between visible characters should be converted to
    // an ASCII space for making there a line break opportunity.
    "foo bar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]&nbsp; bar",
    [["forwarddelete",""]],
    // The single white-space between visible characters should be an ASCII
    // space for making there a line break opportunity.
    "foo bar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]&nbsp;&nbsp;bar",
    [["forwarddelete",""]],
    // The single white-space between visible characters should be converted to
    // an ASCII space for making there a line break opportunity.
    "foo bar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]  bar",
    [["forwarddelete",""]],
    // The white-spaces should be collapsed to a white-space.  Therefore, both
    // of them should be deleted.
    "foobar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[] &nbsp; bar",
    [["forwarddelete",""]],
    // The white-spaces between visible characters should be an NBSP and an
    // ASCII white-space.  The former is required for make both white-spaces
    // visible and the latter is required for a line break opportunity.
    // The order is not a matter in this test.
    ["foo&nbsp; bar", "foo &nbsp;bar"],
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo []&nbsp; bar",
    [["forwarddelete",""]],
    // The white-spaces between visible characters should be an NBSP and an
    // ASCII white-space.  The former is required for make both white-spaces
    // visible and the latter is required for a line break opportunity.
    // The order is not a matter in this test.
    ["foo&nbsp; bar", "foo &nbsp;bar"],
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo &nbsp;[] bar",
    [["forwarddelete",""]],
    // The white-spaces between visible characters should be an NBSP and an
    // ASCII white-space.  The former is required for make both white-spaces
    // visible and the latter is required for a line break opportunity.
    // The order is not a matter in this test.
    ["foo&nbsp; bar", "foo &nbsp;bar"],
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[] <span>&nbsp;</span> bar",
    [["forwarddelete",""]],
    // The following white-space should be an NBSP to avoid it to become
    // invisible when the preceding Text is deleted.
    "foo<span>&nbsp;</span> bar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo []<span>&nbsp;</span> bar",
    [["forwarddelete",""]],
    // The white-spaces between visible characters should be an NBSP and an
    // ASCII white-space.  The former is required for make both white-spaces
    // visible and the latter is required for a line break opportunity.
    // The order is not a matter in this test.
    ["foo&nbsp; bar", "foo &nbsp;bar"],
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo <span>&nbsp;</span>[] bar",
    [["forwarddelete",""]],
    // The white-space in the <span> should be an NBSP for avoiding to become
    // invisible when its surrounding Text is deleted.  On the other hand,
    // it's preceding white-space can be either for performance.  However,
    // basically, it should be an NBSP due to the last character of a Text.
    ["foo&nbsp;<span>&nbsp;</span>bar", "foo <span>&nbsp;</span>bar"],
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<b>foo[] </b>&nbsp;bar",
    [["forwarddelete",""]],
    // The following Text node should starts with an NBSP to avoid it to become
    // invisible when the preceding <b> is deleted.
    "<b>foo</b>&nbsp;bar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<b>foo[]&nbsp;</b> bar",
    [["forwarddelete",""]],
    // The following Text node should starts with an NBSP to avoid it to become
    // invisible when the preceding <b> is deleted.  However, it's fine to keep
    // it as an ASCII white-space since the Text node is not in the modified
    // range.
    ["<b>foo</b>&nbsp;bar", "<b>foo</b> bar"],
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<b>foo[]&nbsp;</b>&nbsp;bar",
    [["forwarddelete",""]],
    // The following Text node should starts with an NBSP to avoid it to become
    // invisible when the preceding <b> is deleted.
    "<b>foo</b>&nbsp;bar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<b>foo[] </b> bar",
    [["forwarddelete",""]],
    // The white-spaces should've been collapsed to a white-space.  Therefore,
    // they should be deleted together.
    "<b>foo</b>bar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<pre>foo []&nbsp;</pre>",
    [["forwarddelete",""]],
    "<pre>foo </pre>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<pre>[]&nbsp; foo</pre>",
    [["forwarddelete",""]],
    "<pre> foo</pre>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<pre>foo[] &nbsp;bar</pre>",
    [["forwarddelete",""]],
    "<pre>foo&nbsp;bar</pre>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<pre>foo[]&nbsp; bar</pre>",
    [["forwarddelete",""]],
    "<pre>foo bar</pre>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<pre>foo[]  bar</pre>",
    [["forwarddelete",""]],
    "<pre>foo bar</pre>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div style=white-space:pre>foo []&nbsp;</div>",
    [["forwarddelete",""]],
    "<div style=\"white-space:pre\">foo </div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div style=white-space:pre>[]&nbsp; foo</div>",
    [["forwarddelete",""]],
    "<div style=\"white-space:pre\"> foo</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div style=white-space:pre>foo[] &nbsp;bar</div>",
    [["forwarddelete",""]],
    "<div style=\"white-space:pre\">foo&nbsp;bar</div>",
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["<p>fo[o<ol><li>bar<li>baz</ol><p>q]uz",
    [["defaultparagraphseparator","div"],["forwarddelete",""]],
    "<p>fo{}uz</p>",
    [true,true],
    {"defaultparagraphseparator":[false,false,"p",false,false,"div"],"forwarddelete":[false,false,"",false,false,""]}],
["<p>fo[o<ol><li>bar<li>baz</ol><p>q]uz",
    [["defaultparagraphseparator","p"],["forwarddelete",""]],
    "<p>fo{}uz</p>",
    [true,true],
    {"defaultparagraphseparator":[false,false,"div",false,false,"p"],"forwarddelete":[false,false,"",false,false,""]}],
["<ol><li>fo[o</ol><ol><li>b]ar</ol>",
    [["forwarddelete",""]],
    "<ol><li>fo{}ar</li></ol>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ol><li>fo[o</ol><ul><li>b]ar</ul>",
    [["forwarddelete",""]],
    "<ol><li>fo{}ar</li></ol>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[<ol><li>]bar</ol>",
    [["forwarddelete",""]],
    "foo{}bar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ol><li>foo[<li>]bar</ol>",
    [["forwarddelete",""]],
    "<ol><li>foo{}bar</li></ol>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[<dl><dt>]bar<dd>baz</dl>",
    [["forwarddelete",""]],
    "foo{}bar<dl><dd>baz</dd></dl>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[<dl><dd>]bar</dl>",
    [["forwarddelete",""]],
    "foo{}bar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<dl><dt>foo[<dd>]bar</dl>",
    [["forwarddelete",""]],
    "<dl><dt>foo{}bar</dt></dl>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<dl><dt>foo[<dt>]bar<dd>baz</dl>",
    [["forwarddelete",""]],
    "<dl><dt>foo{}bar</dt><dd>baz</dd></dl>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<dl><dt>foo<dd>bar[<dd>]baz</dl>",
    [["forwarddelete",""]],
    "<dl><dt>foo</dt><dd>bar{}baz</dd></dl>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ol><li>foo</ol>{}<br><ol><li>bar</ol>",
    [["forwarddelete",""]],
    "<ol><li>foo</li></ol><ol><li>bar</li></ol>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ol><li>foo</ol><p>{}<br></p><ol><li>bar</ol>",
    [["forwarddelete",""]],
    "<ol><li>foo</li></ol><p>{}bar</p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ol><li><p>foo</ol><p>{}<br></p><ol><li>bar</ol>",
    [["forwarddelete",""]],
    "<ol><li><p>foo</p></li></ol><p>{}bar</p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ol id=a><li>foo</ol>{}<br><ol><li>bar</ol>",
    [["forwarddelete",""]],
    "<ol id=\"a\"><li>foo</li></ol><ol><li>bar</li></ol>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ol><li>foo</ol>{}<br><ol id=b><li>bar</ol>",
    [["forwarddelete",""]],
    "<ol><li>foo</li></ol><ol id=\"b\"><li>bar</li></ol>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ol id=a><li>foo</ol>{}<br><ol id=b><li>bar</ol>",
    [["forwarddelete",""]],
    "<ol id=\"a\"><li>foo</li></ol><ol id=\"b\"><li>bar</li></ol>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ol class=a><li>foo</ol>{}<br><ol class=b><li>bar</ol>",
    [["forwarddelete",""]],
    "<ol class=\"a\"><li>foo</li></ol><ol class=\"b\"><li>bar</li></ol>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ol><ol><li>foo</ol><li>{}<br><ol><li>bar</ol></ol>",
    [["forwarddelete",""]],
    "<ol><ol><li>foo</li></ol><li>{}bar</li></ol>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ol><ol><li>foo</ol><li>{}<br></li><ol><li>bar</ol></ol>",
    [["forwarddelete",""]],
    "<ol><ol><li>foo</li></ol><li>{}bar</li></ol>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ol><li>foo[</ol>bar]<ol><li>baz</ol>",
    [["forwarddelete",""]],
    "<ol><li>foo{}</li><li>baz</li></ol>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ol><li>foo[</ol><p>bar]<ol><li>baz</ol>",
    [["defaultparagraphseparator","div"],["forwarddelete",""]],
    "<ol><li>foo{}</li><li>baz</li></ol>",
    [true,true],
    {"defaultparagraphseparator":[false,false,"p",false,false,"div"],"forwarddelete":[false,false,"",false,false,""]}],
["<ol><li>foo[</ol><p>bar]<ol><li>baz</ol>",
    [["defaultparagraphseparator","p"],["forwarddelete",""]],
    "<ol><li>foo{}</li><li>baz</li></ol>",
    [true,true],
    {"defaultparagraphseparator":[false,false,"div",false,false,"p"],"forwarddelete":[false,false,"",false,false,""]}],
["<ol><li><p>foo[</ol><p>bar]<ol><li>baz</ol>",
    [["defaultparagraphseparator","div"],["forwarddelete",""]],
    "<ol><li><p>foo{}</p></li><li>baz</li></ol>",
    [true,true],
    {"defaultparagraphseparator":[false,false,"p",false,false,"div"],"forwarddelete":[false,false,"",false,false,""]}],
["<ol><li><p>foo[</ol><p>bar]<ol><li>baz</ol>",
    [["defaultparagraphseparator","p"],["forwarddelete",""]],
    "<ol><li><p>foo{}</p></li><li>baz</li></ol>",
    [true,true],
    {"defaultparagraphseparator":[false,false,"div",false,false,"p"],"forwarddelete":[false,false,"",false,false,""]}],
["<ol><li>fo[]o</ol><ol><li>bar</ol>",
    [["forwarddelete",""]],
    "<ol><li>fo[]</li></ol><ol><li>bar</li></ol>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ol><li>foo</ol>[bar<ol><li>]baz</ol>",
    [["forwarddelete",""]],
    "<ol><li>foo</li></ol><ol><li>baz</li></ol>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ol><li>foo</ol><p>[bar<ol><li>]baz</ol>",
    [["forwarddelete",""]],
    "<ol><li>foo</li></ol><p>{}baz</p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ol><li>foo</ol><p>[bar<ol><li><p>]baz</ol>",
    [["defaultparagraphseparator","div"],["forwarddelete",""]],
    "<ol><li>foo</li></ol><ol><li><p>{}baz</p></li></ol>",
    [true,true],
    {"defaultparagraphseparator":[false,false,"p",false,false,"div"],"forwarddelete":[false,false,"",false,false,""]}],
["<ol><li>foo</ol><p>[bar<ol><li><p>]baz</ol>",
    [["defaultparagraphseparator","p"],["forwarddelete",""]],
    "<ol><li>foo</li></ol><ol><li><p>{}baz</p></li></ol>",
    [true,true],
    {"defaultparagraphseparator":[false,false,"div",false,false,"p"],"forwarddelete":[false,false,"",false,false,""]}],
["<ol><li>foo</ol><ol><li>[]bar</ol>",
    [["forwarddelete",""]],
    "<ol><li>foo</li></ol><ol><li>{}ar</li></ol>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ol><ol><li>foo[</ol><li>bar</ol>baz]<ol><li>quz</ol>",
    [["forwarddelete",""]],
    "<ol><ol><li>foo{}</li></ol><li>quz</li></ol>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ul><li>foo</ul>{}<br><ul><li>bar</ul>",
    [["forwarddelete",""]],
    "<ul><li>foo</li></ul><ul><li>bar</li></ul>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ul><li>foo</ul><p>{}<br></p><ul><li>bar</ul>",
    [["forwarddelete",""]],
    "<ul><li>foo</li></ul><p>{}bar</p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ol><li>foo[<li>bar]</ol><ol><li>baz</ol><ol><li>quz</ol>",
    [["forwarddelete",""]],
    "<ol><li>foo{}</li><li>baz</li><li>quz</li></ol>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ol><li>foo</ol>{}<br><ul><li>bar</ul>",
    [["forwarddelete",""]],
    "<ol><li>foo</li></ol><ul><li>bar</li></ul>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ol><li>foo</ol><p>{}<br></p><ul><li>bar</ul>",
    [["forwarddelete",""]],
    "<ol><li>foo</li></ol><p>{}bar</p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ul><li>foo</ul>{}<br><ol><li>bar</ol>",
    [["forwarddelete",""]],
    "<ul><li>foo</li></ul><ol><li>bar</li></ol>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ul><li>foo</ul><p>{}<br></p><ol><li>bar</ol>",
    [["forwarddelete",""]],
    "<ul><li>foo</li></ul><p>{}bar</p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<p><b>[foo]</b>",
    [["forwarddelete",""]],
    "<p>{}<br></p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<p><quasit>[foo]</quasit>",
    [["forwarddelete",""]],
    "<p>{}<br></p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<p><b><i>[foo]</i></b>",
    [["forwarddelete",""]],
    "<p>{}<br></p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<p><b>{foo}</b>",
    [["forwarddelete",""]],
    "<p>{}<br></p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<p>{<b>foo</b>}",
    [["forwarddelete",""]],
    "<p>{}<br></p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<p><b>[]f</b>",
    [["forwarddelete",""]],
    "<p>{}<br></p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<b>[foo]</b>",
    [["forwarddelete",""]],
    "{}<br>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div><b>[foo]</b></div>",
    [["forwarddelete",""]],
    "<div>{}<br></div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div><div><p>foo[]</p></div></div><div></div><div><div>bar</div></div></div>",
    [["forwarddelete",""]],
    "<div><div><p>foobar</p></div></div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div>foo[]</div><div></div><div>bar</div>",
    [["forwarddelete",""]],
    "<div>foobar</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div>foo[]</div><span></span><div>bar</div>",
    [["forwarddelete",""]],
    "<div>foobar</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div>foo[]</div><!-- comment --><div>bar</div>",
    [["forwarddelete",""]],
    "<div>foobar</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div>ab[]c </div>",
    [["forwarddelete",""]],
    // The invisible trailing white-space should be deleted with the "c", but
    // it's fine to keep it because of invisible.
    ["<div>ab</div>", "<div>ab </div>"],
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div>ab[]c  </div>",
    [["forwarddelete",""]],
    // The invisible trailing white-spaces should be deleted with the "c", but
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    ["<div>ab</div>", "<div>ab  </div>"],
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div>abc[] </div>",
    [["forwarddelete",""]],
    // If there is nothing to delete due to followed only by invisible
    // white-spaces, they shouldn't be deleted for the undo buffer.
    "<div>abc </div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div>abc [] </div>",
    [["forwarddelete",""]],
    // If there is nothing to delete due to followed only by invisible
    // white-spaces, they shouldn't be deleted for the undo buffer.
    "<div>abc  </div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div>abc[] </div><div>def</div>",
    [["forwarddelete",""]],
    // The trailing white-spaces are invisible, therefore, no white-space should
    // appear after joining the paragraphs.
    "<div>abcdef</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div>abc[]  </div><div>def</div>",
    [["forwarddelete",""]],
    "<div>abcdef</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div>abc [] </div><div>def</div>",
    [["forwarddelete",""]],
    "<div>abcdef</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div>abc[]</div><div> def</div>",
    [["forwarddelete",""]],
    // The leading white-spaces are invisible, therefore, no white-space should
    // appear after joining the paragraphs.
    "<div>abcdef</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div>abc[]</div><div>  def</div>",
    [["forwarddelete",""]],
    "<div>abcdef</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div>abc[] </div><div> def</div>",
    [["forwarddelete",""]],
    // Both the leading and trailing white-spaces are invisible, therefore, no
    // white-space should appear after joining the paragraphs.
    "<div>abcdef</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div>abc [] </div><div>  def</div>",
    [["forwarddelete",""]],
    "<div>abcdef</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div>abc[]  </div> <div>  def</div>",
    [["forwarddelete",""]],
    "<div>abcdef</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<img contenteditable=false src=/img/lion.svg>bar",
    [["forwarddelete",""]],
    "foo{}bar",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<span contenteditable=false>bar</span>baz",
    [["forwarddelete",""]],
    "foo{}baz",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<span contenteditable=false>bar</span><span contenteditable=false>baz</span>qux",
    [["forwarddelete",""]],
    "foo[]<span contenteditable=\"false\">baz</span>qux",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<span contenteditable=false><span>b</span><span>a</span><span>r</span></span>baz",
    [["forwarddelete",""]],
    "foo{}baz",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<div contenteditable=false>bar</div>baz",
    [["forwarddelete",""]],
    "foo{}baz",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo[]<span contenteditable=false><b>bar</b></span>baz",
    [["forwarddelete",""]],
    "foo{}baz",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["foo<span>bar[]<span contenteditable=false>baz</span></span>qux",
    [["forwarddelete",""]],
    "foo<span>bar{}</span>qux",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<span>[abc]</span>",
    [["forwarddelete",""]],
    "<br>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<span>[abc]</span><br>",
    [["forwarddelete",""]],
    "<br>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<p><span>[abc]</span></p>",
    [["forwarddelete",""]],
    "<p><br></p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<p><span>[abc]</span><br></p>",
    [["forwarddelete",""]],
    "<p><br></p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
// XXX Perhaps, replacing with <br> element is better, but this is common behavior.
["<p contenteditable=false><span contenteditable=true>[abc]</span></p>",
    [["forwarddelete",""]],
    "<p contenteditable=\"false\"><span contenteditable=\"true\"></span></p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div><div>{}<br></div></div>",
    [["forwarddelete",""]],
    ["", "<br>"],
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div><div contenteditable=false><div contenteditable><div>{}<br></div></div></div></div>",
    [["forwarddelete",""]],
    ["<div><div contenteditable=\"false\"><div contenteditable=\"\"></div></div></div>",
     "<div><div contenteditable=\"false\"><div contenteditable=\"\"><br></div></div></div>"],
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div><div contenteditable=false><span contenteditable>{}<br></span></div></div>",
    [["forwarddelete",""]],
    ["<div><div contenteditable=\"false\"><span contenteditable=\"\"></span></div></div>",
     "<div><div contenteditable=\"false\"><span contenteditable=\"\"><br></span></div></div>"],
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div style=white-space:pre>foo[] \nbar</div>",
    [["forwarddelete",""]],
    "<div style=\"white-space:pre\">foo[]\nbar</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div style=white-space:pre>foo[]\n bar</div>",
    [["forwarddelete",""]],
    "<div style=\"white-space:pre\">foo[] bar</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div style=white-space:pre>foo[]\n\nbar</div>",
    [["forwarddelete",""]],
    "<div style=\"white-space:pre\">foo[]\nbar</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div style=white-space:pre>[]f\nbar</div>",
    [["forwarddelete",""]],
    "<div style=\"white-space:pre\">[]\nbar</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div style=white-space:pre-wrap>foo[] \nbar</div>",
    [["forwarddelete",""]],
    "<div style=\"white-space:pre-wrap\">foo[]\nbar</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div style=white-space:pre-wrap>foo[]\n bar</div>",
    [["forwarddelete",""]],
    "<div style=\"white-space:pre-wrap\">foo[] bar</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div style=white-space:pre-wrap>foo[]\n\nbar</div>",
    [["forwarddelete",""]],
    "<div style=\"white-space:pre-wrap\">foo[]\nbar</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div style=white-space:pre-wrap>[]f\nbar</div>",
    [["forwarddelete",""]],
    "<div style=\"white-space:pre-wrap\">[]\nbar</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div style=white-space:pre-line>foo[] \nbar</div>",
    [["forwarddelete",""]],
    "<div style=\"white-space:pre-line\">foo[]bar</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div style=white-space:pre-line>foo[]\n bar</div>",
    [["forwarddelete",""]],
    "<div style=\"white-space:pre-line\">foo[]bar</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div style=white-space:pre-line>foo[]\n\nbar</div>",
    [["forwarddelete",""]],
    "<div style=\"white-space:pre-line\">foo[]\nbar</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div style=white-space:pre-line>[]f\nbar</div>",
    [["forwarddelete",""]],
    "<div style=\"white-space:pre-line\">[]\nbar</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div style=white-space:nowrap>foo[] \nbar</div>",
    [["forwarddelete",""]],
    "<div style=\"white-space:nowrap\">foo[]bar</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div style=white-space:nowrap>foo[]\n bar</div>",
    [["forwarddelete",""]],
    "<div style=\"white-space:nowrap\">foo[]bar</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div style=white-space:nowrap>foo[]\n\nbar</div>",
    [["forwarddelete",""]],
    "<div style=\"white-space:nowrap\">foo[]bar</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div style=white-space:nowrap>[]f\nbar</div>",
    [["forwarddelete",""]],
    "<div style=\"white-space:nowrap\">[]bar</div>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<p contenteditable=\"false\"><span contenteditable>a[b]c</span></p>",
    [["forwarddelete",""]],
    "<p contenteditable=\"false\"><span contenteditable=\"\">ac</span></p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<p contenteditable=\"false\"><unknown-element contenteditable>a[b]c</unknown-element></p>",
    [["forwarddelete",""]],
    "<p contenteditable=\"false\"><unknown-element contenteditable=\"\">ac</unknown-element></p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
// Although it seems that browsers should put <br> element to make the inline
// editing host has one-line height, but currently Blink and Firefox do not do
// it.
["<p contenteditable=\"false\"><span contenteditable>[abc]</span></p>",
    [["forwarddelete",""]],
    "<p contenteditable=\"false\"><span contenteditable=\"\"></span></p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<p contenteditable=\"false\"><span contenteditable>a[bc<br>de]f</span></p>",
    [["forwarddelete",""]],
    ["<p contenteditable=\"false\"><span contenteditable=\"\">af</span></p>",
     "<p contenteditable=\"false\"><span contenteditable=\"\">a<br>f</span></p>"],
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<p contenteditable=\"false\"><unknown-element contenteditable>[abc]</unknown-element></p>",
    [["forwarddelete",""]],
    "<p contenteditable=\"false\"><unknown-element contenteditable=\"\"></unknown-element></p>",
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div contenteditable=\"false\"><custom-element contenteditable=\"\"><p>[ab</p><p>c]d</p></custom-element></div>",
    [["forwarddelete",""]],
    ["<div contenteditable=\"false\"><custom-element contenteditable=\"\"><p>d</p></custom-element></div>",
     "<div contenteditable=\"false\"><custom-element contenteditable=\"\"><p>d<br></p></custom-element></div>"],
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div contenteditable=\"false\"><custom-element contenteditable=\"\"><p>a[b</p><p>cd]</p></custom-element></div>",
    [["forwarddelete",""]],
    ["<div contenteditable=\"false\"><custom-element contenteditable=\"\"><p>a</p></custom-element></div>",
     "<div contenteditable=\"false\"><custom-element contenteditable=\"\"><p>a<br></p></custom-element></div>"],
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div contenteditable=\"false\"><custom-element contenteditable=\"\"><p><b>[ab</b></p><p><i>c]d</i></p></custom-element></div>",
    [["forwarddelete",""]],
    ["<div contenteditable=\"false\"><custom-element contenteditable=\"\"><p><i>d</i></p></custom-element></div>",
     "<div contenteditable=\"false\"><custom-element contenteditable=\"\"><p><i>d</i><br></p></custom-element></div>"],
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<div contenteditable=\"false\"><custom-element contenteditable=\"\"><p><b>a[b</b></p><p><i>cd]</i></p></custom-element></div>",
    [["forwarddelete",""]],
    ["<div contenteditable=\"false\"><custom-element contenteditable=\"\"><p><b>a</b></p></custom-element></div>",
     "<div contenteditable=\"false\"><custom-element contenteditable=\"\"><p><b>a</b><br></p></custom-element></div>"],
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],

// Non-editable elements in editable content should be removed by hitting the
// Delete key.  Delete the non-editable things, then, blocks should be merged.
["<p>abc[]</p><ul contenteditable=\"false\"><li>def</li></ul><p>ghi</p>",
    [["forwarddelete",""]],
    ["<p>abcghi</p>",
     "<p>abcghi<br></p>"],
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<p>abc[]</p><ul><li contenteditable=\"false\">def</li></ul><p>ghi</p>",
    [["forwarddelete",""]],
    ["<p>abcghi</p>",
     "<p>abcghi<br></p>"],
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ul><li>abc[]</li><li contenteditable=\"false\">def</li><li>ghi</li></ul>",
    [["forwarddelete",""]],
    ["<ul><li>abcghi</li></ul>",
     "<ul><li>abcghi<br></li></ul>"],
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<p>abc[]</p><ul><li contenteditable=\"false\">def</li><li>ghi</li></ul>",
    [["forwarddelete",""]],
    ["<p>abcghi</p>",
     "<p>abcghi<br></p>"],
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],
["<ul><li>abc[]</li><li contenteditable=\"false\">def</li></ul><p>ghi</p>",
    [["forwarddelete",""]],
    ["<ul><li>abcghi</li></ul>",
     "<ul><li>abcghi<br></li></ul>"],
    [true],
    {"forwarddelete":[false,false,"",false,false,""]}],

// <font>s shouldn't be joined if they have different attributes.
["<p><font color=blue>foo[]</font><p><font color=brown>bar</font>",
    [["styleWithCSS","false"],["defaultparagraphseparator","div"],["forwarddelete",""]],
    "<p><font color=\"blue\">foo[]</font><font color=\"brown\">bar</font></p>",
    [true,true,true],
    {"foreColor":[false,false,"rgb(0, 0, 255)",false,false,"rgb(0, 0, 255)"]}],
["<p><font color=blue>foo[]</font><p><font color=brown>bar</font>",
    [["styleWithCSS","false"],["defaultparagraphseparator","p"],["forwarddelete",""]],
    "<p><font color=\"blue\">foo[]</font><font color=\"brown\">bar</font></p>",
    [true,true,true],
    {"foreColor":[false,false,"rgb(0, 0, 255)",false,false,"rgb(0, 0, 255)"]}],
["<p><font size=3>foo[]</font><p><font size=5>bar</font>",
    [["styleWithCSS","false"],["defaultparagraphseparator","div"],["forwarddelete",""]],
    "<p><font size=\"3\">foo[]</font><font size=\"5\">bar</font></p>",
    [true,true,true],
    {"fontSize":[false,false,"3",false,false,"3"]}],
["<p><font size=3>foo[]</font><p><font size=5>bar</font>",
    [["styleWithCSS","false"],["defaultparagraphseparator","p"],["forwarddelete",""]],
    "<p><font size=\"3\">foo[]</font><font size=\"5\">bar</font></p>",
    [true,true,true],
    {"fontSize":[false,false,"3",false,false,"3"]}],
["<p><font size=4>foo[]</font><p><font size=5>bar</font>",
    [["styleWithCSS","false"],["defaultparagraphseparator","div"],["forwarddelete",""]],
    "<p><font size=\"4\">foo[]</font><font size=\"5\">bar</font></p>",
    [true,true,true],
    {"fontSize":[false,false,"4",false,false,"4"]}],
["<p><font size=4>foo[]</font><p><font size=5>bar</font>",
    [["styleWithCSS","false"],["defaultparagraphseparator","p"],["forwarddelete",""]],
    "<p><font size=\"4\">foo[]</font><font size=\"5\">bar</font></p>",
    [true,true,true],
    {"fontSize":[false,false,"4",false,false,"4"]}],
["<p><font color=blue>foo[]</font><p><font size=5>bar</font>",
    [["styleWithCSS","false"],["defaultparagraphseparator","div"],["forwarddelete",""]],
    "<p><font color=\"blue\">foo[]</font><font size=\"5\">bar</font></p>",
    [true,true,true],
    {"fontSize":[false,false,"3",false,false,"3"],"foreColor":[false,false,"rgb(0, 0, 255)",false,false,"rgb(0, 0, 255)"]}],
["<p><font color=blue>foo[]</font><p><font size=5>bar</font>",
    [["styleWithCSS","false"],["defaultparagraphseparator","p"],["forwarddelete",""]],
    "<p><font color=\"blue\">foo[]</font><font size=\"5\">bar</font></p>",
    [true,true,true],
    {"fontSize":[false,false,"3",false,false,"3"],"foreColor":[false,false,"rgb(0, 0, 255)",false,false,"rgb(0, 0, 255)"]}],
["<p><font size=5>foo[]</font><p><font color=blue>bar</font>",
    [["styleWithCSS","false"],["defaultparagraphseparator","div"],["forwarddelete",""]],
    "<p><font size=\"5\">foo[]</font><font color=\"blue\">bar</font></p>",
    [true,true,true],
    {"fontSize":[false,false,"5",false,false,"5"],"foreColor":[false,false,"rgb(0, 0, 0)",false,false,"rgb(0, 0, 0)"]}],
["<p><font size=5>foo[]</font><p><font color=blue>bar</font>",
    [["styleWithCSS","false"],["defaultparagraphseparator","p"],["forwarddelete",""]],
    "<p><font size=\"5\">foo[]</font><font color=\"blue\">bar</font></p>",
    [true,true,true],
    {"fontSize":[false,false,"5",false,false,"5"],"foreColor":[false,false,"rgb(0, 0, 0)",false,false,"rgb(0, 0, 0)"]}],
["<p><font face=monospace>foo[]</font><p><font face=sans-serif>bar</font>",
    [["styleWithCSS","false"],["defaultparagraphseparator","div"],["forwarddelete",""]],
    "<p><font face=\"monospace\">foo[]</font><font face=\"sans-serif\">bar</font></p>",
    [true,true,true],
    {"fontName":[false,false,"monospace",false,false,"monospace"]}],
["<p><font face=monospace>foo[]</font><p><font face=sans-serif>bar</font>",
    [["styleWithCSS","false"],["defaultparagraphseparator","p"],["forwarddelete",""]],
    "<p><font face=\"monospace\">foo[]</font><font face=\"sans-serif\">bar</font></p>",
    [true,true,true],
    {"fontName":[false,false,"monospace",false,false,"monospace"]}],

// After joining blocks, caret should be end of the deepest left block end for
// making the following input will be styled with the style there.
["<p><span style=\"color:rgb(0, 0, 255)\">foo[]</span></p><p><span style=\"color:rgb(255, 0, 0)\">bar</span></p>",
    [["styleWithCSS","false"],["forwarddelete",""]],
    "<p><span style=\"color:rgb(0, 0, 255)\">foo[]</span><span style=\"color:rgb(255, 0, 0)\">bar</span></p>",
    [true,true],
    {"foreColor":[false,false,"rgb(0, 0, 255)",false,false,"rgb(0, 0, 255)"]}],
["<p><span style=\"color:rgb(0, 0, 255)\">foo[]</span><br></p><p><span style=\"color:rgb(255, 0, 0)\">bar</span></p>",
    [["styleWithCSS","false"],["forwarddelete",""]],
    "<p><span style=\"color:rgb(0, 0, 255)\">foo[]</span><span style=\"color:rgb(255, 0, 0)\">bar</span></p>",
    [true,true],
    {"foreColor":[false,false,"rgb(0, 0, 255)",false,false,"rgb(0, 0, 255)"]}],
["<p><span style=\"color:rgb(0, 0, 255)\">foo[]<br></span></p><p><span style=\"color:rgb(255, 0, 0)\">bar</span></p>",
    [["styleWithCSS","false"],["forwarddelete",""]],
    "<p><span style=\"color:rgb(0, 0, 255)\">foo[]</span><span style=\"color:rgb(255, 0, 0)\">bar</span></p>",
    [true,true],
    {"foreColor":[false,false,"rgb(0, 0, 255)",false,false,"rgb(0, 0, 255)"]}],
["<p><span style=\"color:rgb(0, 0, 255)\">foo[]</span></p><span style=\"color:rgb(255, 0, 0)\">bar</span>",
    [["styleWithCSS","false"],["forwarddelete",""]],
    "<p><span style=\"color:rgb(0, 0, 255)\">foo[]</span><span style=\"color:rgb(255, 0, 0)\">bar</span></p>",
    [true,true],
    {"foreColor":[false,false,"rgb(0, 0, 255)",false,false,"rgb(0, 0, 255)"]}],
["<p><span style=\"color:rgb(0, 0, 255)\">foo[]</span><br></p><span style=\"color:rgb(255, 0, 0)\">bar</span>",
    [["styleWithCSS","false"],["forwarddelete",""]],
    "<p><span style=\"color:rgb(0, 0, 255)\">foo[]</span><span style=\"color:rgb(255, 0, 0)\">bar</span></p>",
    [true,true],
    {"foreColor":[false,false,"rgb(0, 0, 255)",false,false,"rgb(0, 0, 255)"]}],
["<p><span style=\"color:rgb(0, 0, 255)\">foo[]<br></span></p><span style=\"color:rgb(255, 0, 0)\">bar</span>",
    [["styleWithCSS","false"],["forwarddelete",""]],
    "<p><span style=\"color:rgb(0, 0, 255)\">foo[]</span><span style=\"color:rgb(255, 0, 0)\">bar</span></p>",
    [true,true],
    {"foreColor":[false,false,"rgb(0, 0, 255)",false,false,"rgb(0, 0, 255)"]}],
["<span style=\"color:rgb(0, 0, 255)\">foo[]</span><br><p><span style=\"color:rgb(255, 0, 0)\">bar</span></p>",
    [["styleWithCSS","false"],["forwarddelete",""]],
    "<span style=\"color:rgb(0, 0, 255)\">foo[]</span><span style=\"color:rgb(255, 0, 0)\">bar</span>",
    [true,true],
    {"foreColor":[false,false,"rgb(0, 0, 255)",false,false,"rgb(0, 0, 255)"]}],
["<span style=\"color:rgb(0, 0, 255)\">foo[]<br></span><p><span style=\"color:rgb(255, 0, 0)\">bar</span></p>",
    [["styleWithCSS","false"],["forwarddelete",""]],
    "<span style=\"color:rgb(0, 0, 255)\">foo[]</span><span style=\"color:rgb(255, 0, 0)\">bar</span>",
    [true,true],
    {"foreColor":[false,false,"rgb(0, 0, 255)",false,false,"rgb(0, 0, 255)"]}],

// If all list items are selected, keep one list item.
["<ul><li>[abc</li><li>def]</li></ul>",
   [["forwarddelete",""]],
   "<ul><li>{}<br></li></ul>",
   [true],
   {}],
["<ul><ol><li>[abc</li></ol><li>def]</li></ul>",
   [["forwarddelete",""]],
   "<ul><ol><li>{}<br></li></ol></ul>",
   [true],
   {}],
["<ul><ul><li>[abc</li></ul><li>def]</li></ul>",
   [["forwarddelete",""]],
   "<ul><ul><li>{}<br></li></ul></ul>",
   [true],
   {}],
["<ul><li>[abc</li><ul><li>def]</li></ul></ul>",
   [["forwarddelete",""]],
   "<ul><li>{}<br></li></ul>",
   [true],
   {}],
["<ul><ul><li>[abc</li></ul><ul><li>def]</li></ul></ul>",
   [["forwarddelete",""]],
   "<ul><ul><li>{}<br></li></ul></ul>",
   [true],
   {}],
["<ul><ol><li>[abc</li></ol><ul><li>def]</li></ul></ul>",
   [["forwarddelete",""]],
   "<ul><ol><li>{}<br></li></ol></ul>",
   [true],
   {}],
// Don't be confused at inner elements of the list items.
["<ul><li><span>[abc</span></li><li>def]</li></ul>",
   [["forwarddelete",""]],
   "<ul><li>{}<br></li></ul>",
   [true],
   {}],
["<ul><li>[abc</li><li><span>def]</span></li></ul>",
   [["forwarddelete",""]],
   "<ul><li>{}<br></li></ul>",
   [true],
   {}],
["<ul><li><span>[abc</span></li><li><span>def]</span></li></ul>",
   [["forwarddelete",""]],
   "<ul><li>{}<br></li></ul>",
   [true],
   {}],
// Don't be confused at white-spaces around first/last list items' boundaries.
["<ul><li> [abc</li><li>def]</li></ul>",
   [["forwarddelete",""]],
   "<ul><li>{}<br></li></ul>",
   [true],
   {}],
["<ul><li>[abc</li><li>def] </li></ul>",
   [["forwarddelete",""]],
   "<ul><li>{}<br></li></ul>",
   [true],
   {}],
["<ul><li> [abc</li><li>def] </li></ul>",
   [["forwarddelete",""]],
   "<ul><li>{}<br></li></ul>",
   [true],
   {}],
["<ul>\n<li>[abc</li><li>def]</li></ul>",
   [["forwarddelete",""]],
   ["<ul><li>{}<br></li></ul>",
    "<ul>\n<li>{}<br></li></ul>"],
   [true],
   {}],
["<ul><li>[abc</li><li>def]</li>\n</ul>",
   [["forwarddelete",""]],
   ["<ul><li>{}<br></li></ul>",
    "<ul><li>{}<br></li>\n</ul>"],
   [true],
   {}],
["<ul>\n<li>[abc</li><li>def]</li>\n</ul>",
   [["forwarddelete",""]],
   ["<ul><li>{}<br></li></ul>",
    "<ul>\n<li>{}<br></li></ul>",
    "<ul><li>{}<br></li>\n</ul>",
    "<ul>\n<li>{}<br></li>\n</ul>"],
   [true],
   {}],
// Same things for non-sub-lists.
["<ol><li>[abc</li></ol><ul><li>def]</li></ul>",
   [["forwarddelete",""]],
   "<ol><li>{}<br></li></ol>",
   [true],
   {}],
["<ol><li> [abc</li></ol><ul><li>def]</li></ul>",
   [["forwarddelete",""]],
   "<ol><li>{}<br></li></ol>",
   [true],
   {}],
["<ol>\n<li>[abc</li></ol><ul><li>def]</li></ul>",
   [["forwarddelete",""]],
   ["<ol><li>{}<br></li></ol>",
    "<ol>\n<li>{}<br></li></ol>"],
   [true],
   {}],

// Select all list item children when list items have multiple nodes.
["{<ul><li>abc<span>def</span>ghi</li><li>jkl<span>opq</span>rst</li></ul>}",
   [["forwarddelete",""]],
   "<ul><li>{}<br></li></ul>",
   [true],
   {}],

// inlined elements shouldn't be joined as <span>, etc
["<div style=\"display:inline\">abc[]</div><div style=\"display:inline\">def</div>",
   [["forwarddelete",""]],
   "<div style=\"display:inline\">abc</div><div style=\"display:inline\">ef</div>",
   [true],
   {}],
["<ul><li style=\"display:inline\">abc[]</li><li style=\"display:inline\">def</li></ul>",
   [["forwarddelete",""]],
   "<ul><li style=\"display:inline\">abc</li><li style=\"display:inline\">ef</li></ul>",
   [true],
   {}],
["<dl><dt style=\"display:inline\">abc[]</dt><dd style=\"display:inline\">def</dd></dl>",
   [["forwarddelete",""]],
   "<dl><dt style=\"display:inline\">abc</dt><dd style=\"display:inline\">ef</dd></dl>",
   [true],
   {}],
// list-styled elements should work as list item elements
["<div><span style=\"display:list-item\">abc[]</span><span style=\"display:list-item\">def</span></div>",
   [["forwarddelete",""]],
   "<div><span style=\"display:list-item\">abcdef</span></div>",
   [true],
   {}],
// Don't remove parent blocks of selection start to insert new text into the
// selection start container.
["<div>{abc</div><div>def</div>}",
    [["forwarddelete",""]],
    "<div><br></div>",
    [true],
    {}],
["<div>abc</div><div>{def</div>}",
    [["forwarddelete",""]],
    "<div>abc</div><div><br></div>",
    [true],
    {}],

// These flex item cases are based on web-compat issue on Slack.
["<div style=display:flex><span>{abc</span><span>def</span>}</div>",
    [["forwarddelete",""]],
    "<div style=\"display:flex\"><span><br></span></div>",
    [true],
    {}],
["<div style=display:flex><span>abc</span><span>{def</span>}</div>",
    [["forwarddelete",""]],
    "<div style=\"display:flex\"><span>abc</span><span><br></span></div>",
    [true],
    {}],

["<div style=display:grid><span>{abc</span><span>def</span>}</div>",
    [["forwarddelete",""]],
    "<div style=\"display:grid\"><span><br></span></div>",
    [true],
    {}],
["<div style=display:grid><span>abc</span><span>{def</span>}</div>",
    [["forwarddelete",""]],
    "<div style=\"display:grid\"><span>abc</span><span><br></span></div>",
    [true],
    {}],

// Do not delete non-editable when deleting an editable character
["<b>[]X<span contenteditable=false>abc</span></b><i>def</i>",
    [["forwarddelete",""]],
    "<b><span contenteditable=\"false\">abc</span></b><i>def</i>",
    [true],
    {}],
["<b><span contenteditable=false>abc</span>[]X</b><i>def</i>",
    [["forwarddelete",""]],
    "<b><span contenteditable=\"false\">abc</span></b><i>def</i>",
    [true],
    {}],
["<p>[]X<span contenteditable=false>abc</span></p>",
    [["forwarddelete",""]],
    "<p><span contenteditable=\"false\">abc</span></p>",
    [true],
    {}],
["<p><span contenteditable=false>abc</span>[]X</p>",
    [["forwarddelete",""]],
    "<p><span contenteditable=\"false\">abc</span></p>",
    [true],
    {}],
// Do not delete ancestor blocks which still has non-editable content
["<p><span contenteditable=false>ab</span>{}</p>",
    [["forwarddelete",""]],
    "<p><span contenteditable=\"false\">ab</span></p>",
    [true],
    {}],
// Delete only first <br> to make 2 empty lines to only one line.
["<div>abc</div>{}<br><br><div>def</div>",
    [["forwarddelete",""]],
    "<div>abc</div><br><div>def</div>",
    [true],
    {}],
["<div><font><table><td>a</table>{}<br><br><table><td>b</table></font></div>",
    [["forwarddelete",""]],
    "<div><font><table><tbody><tr><td>a</td></tr></tbody></table><br><table><tbody><tr><td>b</td></tr></tbody></table></font></div>",
    [true],
    {}],
// Cells shouldn't be joined, but new empty inline ancestors should be deleted.
["<table><tr><td>a<td><b>[b</b><td><b>c</b><td><b>d]</b><td>e</table>",
    [["forwarddelete",""]],
    "<table><tbody><tr><td>a</td><td><br></td><td><br></td><td><br></td><td>e</td></tr></tbody></table>",
    [true],
    {}],
["<table><tr><th>a<th><b>[b</b><th><b>c</b><th><b>d]</b><th>e</table>",
    [["forwarddelete",""]],
    "<table><tbody><tr><th>a</th><th><br></th><th><br></th><th><br></th><th>e</th></tr></tbody></table>",
    [true],
    {}],

// The expectations of these flex item scenarios based on Chrome 142 except
// in some cases.  Feel free to change them if it's discussed in the Editing WG.
["<div style=display:flex><span>abc[]</span><span>def</span></div>",
    [["forwarddelete",""]],
    "<div style=\"display:flex\"><span>abcdef</span></div>",
    [true],
    {}],
["<div style=display:inline-flex><span>abc[]</span><span>def</span></div>",
    [["forwarddelete",""]],
    "<div style=\"display:inline-flex\"><span>abcdef</span></div>",
    [true],
    {}],
["<div style=display:flex><span>abc</span><span>def[]</span></div>ghi",
    [["forwarddelete",""]],
    "<div style=\"display:flex\"><span>abc</span><span>defghi</span></div>",
    [true],
    {}],
["<div style=display:inline-flex><span>abc</span><span>def[]</span></div>ghi",
    [["forwarddelete",""]],
    "<div style=\"display:inline-flex\"><span>abc</span><span>defghi</span></div>",
    [true],
    {}],
["<div style=display:flex><span>abc</span><span>def[]</span></div><div>ghi</div>",
    [["forwarddelete",""]],
    "<div style=\"display:flex\"><span>abc</span><span>defghi</span></div>",
    [true],
    {}],
["<div style=display:inline-flex><span>abc</span><span>def[]</span></div><div>ghi</div>",
    [["forwarddelete",""]],
    "<div style=\"display:inline-flex\"><span>abc</span><span>defghi</span></div>",
    [true],
    {}],
["012[]<div style=display:flex><span>abc</span><span>def</span></div>",
    [["forwarddelete",""]],
    "012abc<div style=\"display:flex\"><span>def</span></div>",
    [true],
    {}],
["012[]<div style=display:inline-flex><span>abc</span><span>def</span></div>",
    [["forwarddelete",""]],
    "012abc<div style=\"display:inline-flex\"><span>def</span></div>",
    [true],
    {}],
["<div>012[]</div><div style=display:flex><span>abc</span><span>def</span></div>",
    [["forwarddelete",""]],
    "<div>012abc</div><div style=\"display:flex\"><span>def</span></div>",
    [true],
    {}],
["<div>012[]</div><div style=display:inline-flex><span>abc</span><span>def</span></div>",
    [["forwarddelete",""]],
    "<div>012abc</div><div style=\"display:inline-flex\"><span>def</span></div>",
    [true],
    {}],
["<div style=display:flex><span>abc</span><span>def[]</span></div><div style=display:flex><span>ghi</span><span>jkl</span></div>",
    [["forwarddelete",""]],
    "<div style=\"display:flex\"><span>abc</span><span>defghi</span></div><div style=\"display:flex\"><span>jkl</span></div>",
    [true],
    {}],
["<div style=display:inline-flex><span>abc</span><span>def[]</span></div><div style=display:inline-flex><span>ghi</span><span>jkl</span></div>",
    [["forwarddelete",""]],
    "<div style=\"display:inline-flex\"><span>abc</span><span>defghi</span></div><div style=\"display:inline-flex\"><span>jkl</span></div>",
    [true],
    {}],
["<div style=display:flex><span>abc</span><span>def[]</span></div><div style=display:flex><span>ghi</span></div>",
    [["forwarddelete",""]],
    "<div style=\"display:flex\"><span>abc</span><span>defghi</span></div>",
    [true],
    {}],
["<div style=display:inline-flex><span>abc</span><span>def[]</span></div><div style=display:inline-flex><span>ghi</span></div>",
    [["forwarddelete",""]],
    "<div style=\"display:inline-flex\"><span>abc</span><span>defghi</span></div>",
    [true],
    {}],
["<div style=display:flex><span>{}<br></span></div><div>abc</div>",
    [["forwarddelete",""]],
    "<div>abc</div>",
    [true],
    {}],
["<div style=display:inline-flex><span>{}<br></span></div><div>abc</div>",
    [["forwarddelete",""]],
    "<div>abc</div>",
    [true],
    {}],
["<div>abc</div><div style=display:flex><span>{}<br></span></div>",
    [["forwarddelete",""]],
    "<div>abc</div><div style=\"display:flex\"><span><br></span></div>",
    [true],
    {}],
["<div>abc</div><div style=display:inline-flex><span>{}<br></span></div>",
    [["forwarddelete",""]],
    "<div>abc</div><div style=\"display:inline-flex\"><span><br></span></div>",
    [true],
    {}],

// The expectations of these grid item scenarios based on Chrome 142 except
// in some cases.  Feel free to change them if it's discussed in the Editing WG.
["<div style=display:grid><span>abc[]</span><span>def</span></div>",
    [["forwarddelete",""]],
    "<div style=\"display:grid\"><span>abcdef</span></div>",
    [true],
    {}],
["<div style=display:inline-grid><span>abc[]</span><span>def</span></div>",
    [["forwarddelete",""]],
    "<div style=\"display:inline-grid\"><span>abcdef</span></div>",
    [true],
    {}],
["<div style=display:grid><span>abc</span><span>def[]</span></div>ghi",
    [["forwarddelete",""]],
    "<div style=\"display:grid\"><span>abc</span><span>defghi</span></div>",
    [true],
    {}],
["<div style=display:inline-grid><span>abc</span><span>def[]</span></div>ghi",
    [["forwarddelete",""]],
    "<div style=\"display:inline-grid\"><span>abc</span><span>defghi</span></div>",
    [true],
    {}],
["<div style=display:grid><span>abc</span><span>def[]</span></div><div>ghi</div>",
    [["forwarddelete",""]],
    "<div style=\"display:grid\"><span>abc</span><span>defghi</span></div>",
    [true],
    {}],
["<div style=display:inline-grid><span>abc</span><span>def[]</span></div><div>ghi</div>",
    [["forwarddelete",""]],
    "<div style=\"display:inline-grid\"><span>abc</span><span>defghi</span></div>",
    [true],
    {}],
["012[]<div style=display:grid><span>abc</span><span>def</span></div>",
    [["forwarddelete",""]],
    "012abc<div style=\"display:grid\"><span>def</span></div>",
    [true],
    {}],
["012[]<div style=display:inline-grid><span>abc</span><span>def</span></div>",
    [["forwarddelete",""]],
    "012abc<div style=\"display:inline-grid\"><span>def</span></div>",
    [true],
    {}],
["<div>012[]</div><div style=display:grid><span>abc</span><span>def</span></div>",
    [["forwarddelete",""]],
    "<div>012abc</div><div style=\"display:grid\"><span>def</span></div>",
    [true],
    {}],
["<div>012[]</div><div style=display:inline-grid><span>abc</span><span>def</span></div>",
    [["forwarddelete",""]],
    "<div>012abc</div><div style=\"display:inline-grid\"><span>def</span></div>",
    [true],
    {}],
["<div style=display:grid><span>abc</span><span>def[]</span></div><div style=display:grid><span>ghi</span><span>jkl</span></div>",
    [["forwarddelete",""]],
    "<div style=\"display:grid\"><span>abc</span><span>defghi</span></div><div style=\"display:grid\"><span>jkl</span></div>",
    [true],
    {}],
["<div style=display:inline-grid><span>abc</span><span>def[]</span></div><div style=display:inline-grid><span>ghi</span><span>jkl</span></div>",
    [["forwarddelete",""]],
    "<div style=\"display:inline-grid\"><span>abc</span><span>defghi</span></div><div style=\"display:inline-grid\"><span>jkl</span></div>",
    [true],
    {}],
["<div style=display:grid><span>abc</span><span>def[]</span></div><div style=display:grid><span>ghi</span></div>",
    [["forwarddelete",""]],
    "<div style=\"display:grid\"><span>abc</span><span>defghi</span></div>",
    [true],
    {}],
["<div style=display:inline-grid><span>abc</span><span>def[]</span></div><div style=display:inline-grid><span>ghi</span></div>",
    [["forwarddelete",""]],
    "<div style=\"display:inline-grid\"><span>abc</span><span>defghi</span></div>",
    [true],
    {}],
["<div style=display:grid><span>{}<br></span></div><div>abc</div>",
    [["forwarddelete",""]],
    "<div>abc</div>",
    [true],
    {}],
["<div style=display:inline-grid><span>{}<br></span></div><div>abc</div>",
    [["forwarddelete",""]],
    "<div>abc</div>",
    [true],
    {}],
["<div>abc</div><div style=display:grid><span>{}<br></span></div>",
    [["forwarddelete",""]],
    "<div>abc</div><div style=\"display:grid\"><span><br></span></div>",
    [true],
    {}],
["<div>abc</div><div style=display:inline-grid><span>{}<br></span></div>",
    [["forwarddelete",""]],
    "<div>abc</div><div style=\"display:inline-grid\"><span><br></span></div>",
    [true],
    {}],
// XXX I'm not sure which result is better.
["<div><div>abc</div>{}<br></div><div>def</div>",
    [["forwarddelete",""]],
    ["<div><div>abc</div>def</div>",
     "<div><div>abc</div></div><div>def</div>"],
    [true],
    {}],

// display:contents of grid/flex item makes its children as items of its container.
// Therefore, they should be treated as items correctly, and the display:contents elements should
// be treated as meaningless container.  Therefore, they should be deleted once they become empty.
["<div style=display:flex><span>abc[]</span><span style=display:contents>def</span></div>",
    [["forwarddelete",""]],
    "<div style=\"display:flex\"><span>abcdef</span></div>",
    [true],
    {}],
["<div style=display:flex><span>abc[]</span><span style=display:contents><span>def</span></span></div>",
    [["forwarddelete",""]],
    "<div style=\"display:flex\"><span>abcdef</span></div>",
    [true],
    {}],
["<div style=display:flex><span style=display:contents>abc[]</span><span>def</span></div>",
    [["forwarddelete",""]],
    "<div style=\"display:flex\"><span style=\"display:contents\">abcdef</span></div>",
    [true],
    {}],
["<div style=display:flex><span style=display:contents><span>abc[]</span></span><span>def</span></div>",
    [["forwarddelete",""]],
    "<div style=\"display:flex\"><span style=\"display:contents\"><span>abcdef</span></span></div>",
    [true],
    {}],
["<div style=display:grid><span>abc[]</span><span style=display:contents>def</span></div>",
    [["forwarddelete",""]],
    "<div style=\"display:grid\"><span>abcdef</span></div>",
    [true],
    {}],
["<div style=display:grid><span>abc[]</span><span style=display:contents><span>def</span></span></div>",
    [["forwarddelete",""]],
    "<div style=\"display:grid\"><span>abcdef</span></div>",
    [true],
    {}],
["<div style=display:grid><span style=display:contents>abc[]</span><span>def</span></div>",
    [["forwarddelete",""]],
    "<div style=\"display:grid\"><span style=\"display:contents\">abcdef</span></div>",
    [true],
    {}],
["<div style=display:grid><span style=display:contents><span>abc[]</span></span><span>def</span></div>",
    [["forwarddelete",""]],
    "<div style=\"display:grid\"><span style=\"display:contents\"><span>abcdef</span></span></div>",
    [true],
    {}],

// <object> content should be deleted if it has only fallback content.
["abc[]<object>def</object>",
    [["forwarddelete",""]],
    "abc<object>ef</object>",
    [true],
    {}],
["abc[]<object data=\"/images/green-1x1.png\">def</object>ghi",
    [["forwarddelete",""]],
    "abcghi",
    [true],
    {}],
["abc[]<object data=\"about:blank\">def</object>ghi",
    [["forwarddelete",""]],
    "abcghi",
    [true],
    {}],
// The following elements should be rendered with replaced content so that
// the element itself should be removed.
["abc[]<iframe>def</iframe>ghi",
    [["forwarddelete",""]],
    "abcghi",
    [true],
    {}],
["abc[]<meter>def</meter>ghi",
    [["forwarddelete",""]],
    "abcghi",
    [true],
    {}],
["abc[]<progress>def</progress>ghi",
    [["forwarddelete",""]],
    "abcghi",
    [true],
    {}],
["abc[]<audio controls>def</audio>ghi",
    [["forwarddelete",""]],
    "abcghi",
    [true],
    {}],
["abc[]<video controls>def</video>ghi",
    [["forwarddelete",""]],
    "abcghi",
    [true],
    {}],
// <audio> and <input type=hidden> are invisible so that they should be
// deleted silently.
["abc[]<audio>def</audio>ghi",
    [["forwarddelete",""]],
    "abchi",
    [true],
    {}],
["abc[]<input type=hidden>def",
    [["forwarddelete",""]],
    "abcef",
    [true],
    {}],

["<p>abc{}<br> </p><p><br></p>",
    [["forwarddelete",""]],
    "<p>abc</p>",
    [true],
    {}],
["<p>abc{}<br> </p> <p><br></p>",
    [["forwarddelete",""]],
    "<p>abc</p>",
    [true],
    {}],
["<div style=white-space:pre><p>abc{}</p> <p><br></p></div>",
    [["forwarddelete",""]],
    "<div style=\"white-space:pre\"><p>abc </p><p><br></p></div>",
    [true],
    {}],
]