chromium/third_party/blink/web_tests/editing/pasteboard/paste_line_endings_2.html

<!doctype html>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script src="../assert_selection.js"></script>
<script>
function copyAndPaste(selection) {
 if (!window.testRunner)
   throw 'This test requires window.testRunner.';
 selection.document.execCommand('Copy');
 selection.document.execCommand('Paste');
}

selection_test(
    [
        '<div contenteditable><div>',
            'line one^<br>',
            '|line two',
        '</div></div>',
    ],
    copyAndPaste,
    [
        '<div contenteditable><div>',
            'line one<br>',
            '|line two',
        '</div></div>',
    ], '1 one <br> two');
selection_test(
    [
        '<div contenteditable>',
            '<div>line one^</div>',
            '<div>|line two</div>',
        '</div>',
    ],
    copyAndPaste,
    [
        '<div contenteditable>',
            '<div>line one</div>',
            '<div>|line two</div>',
        '</div>',
    ], '2 <div>one</div> <div>two</div>');
selection_test(
    [
        '<div contenteditable><div>',
            '<div>line one^</div>',
            '<div>|line two</div>',
        '</div></div>',
    ],
    copyAndPaste,
    [
        '<div contenteditable><div>',
            '<div>line one</div>',
            '<div>|line two</div>',
        '</div></div>',
    ], '3 <div><div>one</div><div>two</div>');
selection_test(
    [
        '<div contenteditable><div>',
            '<div>',
                'line one^',
                '<div>|line two</div>',
            '</div>',
        '</div></div>',
    ],
    copyAndPaste,
    [
        '<div contenteditable><div>',
            '<div>',
                'line one',
                '<div>|line two</div>',
            '</div>',
        '</div></div>',
    ], '4 <div>one<div>two</div></div>');
selection_test(
    [
        '<div contenteditable><div>',
            '<div><div>',
                'line one^',
                '<div>|line two</div>',
            '</div></div>',
        '</div></div>',
    ],
    copyAndPaste,
    [
        '<div contenteditable><div>',
            '<div><div>',
                'line one',
                '<div>|line two</div>',
            '</div></div>',
        '</div></div>',
    ], '5 <div><div>one<div>two</div></div></div>');
</script>