dataTransfer-clearData.html

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This WPT test may be referenced by the following Test IDs:
- /clipboard-apis/dataTransfer-clearData.html - WPT Dashboard Interop Dashboard

<!doctype html>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<p id="description"></p>

<div id="console"></div>

<script>

const dataTransfer = new DataTransfer();

const filename = "1.png";

const filename2 = "2.png";

test(() => {

    const file = new File(["🕺💃"], filename, {

        type: "image/png"

});

    const file2 = new File(["🕺💃"], filename2, {

        type: "image/png"

});

    dataTransfer.items.add(file);

    dataTransfer.items.add(file2);

    assert_equals(dataTransfer.items.length, 2);

    assert_equals(dataTransfer.types.length, 1);

    dataTransfer.setData("text/plain", "hi");

    assert_equals(dataTransfer.items.length, 3);

    assert_equals(dataTransfer.types.length, 2);

    dataTransfer.items.add("hi 2", "text/html");

    dataTransfer.items.add("new octet item", "application/octet-stream");

    assert_equals(dataTransfer.items.length, 5);

    assert_equals(dataTransfer.types.length, 4);

    dataTransfer.clearData("text/html");

    assert_equals(dataTransfer.items.length, 4);

    assert_equals(dataTransfer.types.length, 3);

    dataTransfer.clearData();

    assert_equals(dataTransfer.items.length, 2);

    assert_equals(dataTransfer.files.length, 2);

    assert_equals(dataTransfer.types.length, 1);

    assert_equals(dataTransfer.types[0], "Files");

    assert_equals(dataTransfer.files[0].name, filename);

    assert_equals(dataTransfer.files[1].name, filename2);

    dataTransfer.items.add("hi", "text/plain");

    assert_equals(dataTransfer.items.length, 3);

    assert_equals(dataTransfer.files.length, 2);

    assert_equals(dataTransfer.types.length, 2);

    dataTransfer.items.clear();

    assert_equals(dataTransfer.items.length, 0);

    assert_equals(dataTransfer.files.length, 0);

    assert_equals(dataTransfer.types.length, 0);

}, 'Clear data from dataTransfer');

</script>

</body>

</html>