response.setHeaders(headers);

        String[] acceptValues = response.getHeaderValues("Accept");
        String[] acceptValuesLowercase = response.getHeaderValues("accept"); // Test case insensitive
        String[] missingValues = response.getHeaderValues("Missing-Header");

        assertArrayEquals(new String[] { "application/json", "text/html" }, acceptValues);

     * Gets the values of the specified header.
     *
     * @param name the name of the header.
     * @return an array of header values, or an empty array if the header does not exist.
     */
    public String[] getHeaderValues(final String name) {
        final List<String> list = headers.get(name.toLowerCase(Locale.ROOT));
        if (list == null) {
            return new String[0];
        }