LayoutTests/fast/parser/html-fast-path-attribute-name-case.html

<!DOCTYPE html>
<html>
<body>
<script src="../../resources/js-test.js"></script>
<script>
description("Tests that the HTML parser keeps attribute names with '-', digits or '_' as written, and lowercases attribute names with upper case letters.");

var container = document.createElement("div");

function attributeNames(markup) {
    container.innerHTML = markup;
    if (!container.firstElementChild)
        return "(no element)";
    return container.firstElementChild.getAttributeNames().join(" ");
}

function attributeNames16Bit(markup) {
    return attributeNames(markup + "\u2192");
}

debug("Names without upper case letters are kept as written.");
shouldBeEqualToString("attributeNames('<button aria-expanded=false aria-controls=more-menu>More</button>')", "aria-expanded aria-controls");
shouldBeEqualToString("attributeNames16Bit('<button aria-expanded=false aria-controls=more-menu>More</button>')", "aria-expanded aria-controls");
shouldBeEqualToString("attributeNames('<input data-validate_on=blur data-step2=10>')", "data-validate_on data-step2");
shouldBeEqualToString("attributeNames16Bit('<input data-validate_on=blur data-step2=10>')", "data-validate_on data-step2");
shouldBeEqualToString("attributeNames('<div data-hidden></div>')", "data-hidden");
shouldBeEqualToString("attributeNames16Bit('<div data-hidden></div>')", "data-hidden");
shouldBeEqualToString("attributeNames('<input data-hidden/>')", "data-hidden");
shouldBeEqualToString("attributeNames16Bit('<input data-hidden/>')", "data-hidden");

debug("Names with upper case letters are lowercased.");
shouldBeEqualToString("attributeNames('<div tabIndex=-1 ARIA-LABELLEDBY=title data-dismissOnEscape></div>')", "tabindex aria-labelledby data-dismissonescape");
shouldBeEqualToString("attributeNames16Bit('<div tabIndex=-1 ARIA-LABELLEDBY=title data-dismissOnEscape></div>')", "tabindex aria-labelledby data-dismissonescape");
shouldBeEqualToString("attributeNames('<input readOnly Data-Field_Name=\"nickname\"/>')", "readonly data-field_name");
shouldBeEqualToString("attributeNames16Bit('<input readOnly Data-Field_Name=\"nickname\"/>')", "readonly data-field_name");

debug("Markup that ends inside an attribute name creates no element.");
shouldBeEqualToString("attributeNames('<div data-loading')", "(no element)");
shouldBeEqualToString("attributeNames('<div data-Loading')", "(no element)");
</script>
</body>
</html>