Assistant: 
User: 
    Please analyze the following code file and determine whether it belongs to any of the provided modules based on the listed module descriptions.
    Note that the provided list of modules may not be exhaustive, and some files may not belong to any of the modules. 
    If the code belongs to a module, Only output the module name, without any explanation or additional information; otherwise, return 'None' if it does not belong to any module.

    Modules : {
        "UI": "Handles the front-end user interface, consisting of HTML, CSS, and JavaScript files generated by the Angular framework. It processes user requests and interacts with the server using AJAX for data retrieval and client-side interactions."
"Test Driver": "Facilitates automated regression testing and handles transmission of test data in JSON format. It performs Java testing using TestNG and JavaScript unit-testing with Jest. It also sets up a simulated web server for servlet-level tests and automates end-to-end testing using Selenium Java."
"Logic": "Manages the business logic of TEAMMATES, including handling relationships between entities, managing transactions, input value sanitization, access control rights, and interfacing with GAE-provided or third-party APIs."
"Storage": "Performs CRUD operations on data entities, validation of data, and abstraction of GQL queries, hiding the complexities of datastore from the Logic component."
"Common": "Contains utility classes, custom exceptions, and data transfer objects used across the entire application for easy consolidation and transfer of structured data."
"E2E": "Handles end-to-end testing and load & performance testing, providing helpers, abstractions of browser pages, and test cases for E2E tests and L&P tests."
"Client": "Contains scripts for administrative tasks, such as migrating data to a new schema and calculating statistics. This module connects directly to the application back-end for administrative purposes."
    }

    Code: package teammates.test; /** * Mocks {@link HttpServletResponse} for testing purpose. * * <p>Only important methods are modified here; everything else are auto-generated. */ public class MockHttpServletResponse implements HttpServletResponse { private int statusCode = HttpStatus.SC_OK; private String redirectUrl; private List<Cookie> cookies = new ArrayList<>(); @Override public void addCookie(Cookie cookie) { this.cookies.add(cookie); } @Override public boolean containsHeader(String name) { return false; } @Override public String encodeURL(String url) { return null; } @Override public String encodeRedirectURL(String url) { return null; } @Override public String encodeUrl(String url) { return null; } @Override public String encodeRedirectUrl(String url) { return null; } @Override public void sendError(int sc, String msg) { // not used } @Override public void sendError(int sc) { // not used } @Override public void sendRedirect(String location) { this.redirectUrl = location; } public String getRedirectUrl() { return redirectUrl; } @Override public void setDateHeader(String name, long date) { // not used } @Override public void addDateHeader(String name, long date) { // not used } @Override public void setHeader(String name, String value) { // not used } @Override public void addHeader(String name, String value) { // not used } @Override public void setIntHeader(String name, int value) { // not used } @Override public void addIntHeader(String name, int value) { // not used } @Override public void setStatus(int sc) { this.statusCode = sc; } @Override public void setStatus(int sc, String sm) { this.statusCode = sc; } @Override public int getStatus() { return this.statusCode; } @Override public String getHeader(String s) { return null; } @Override public Collection<String> getHeaders(String s) { return Collections.emptyList(); } @Override public Collection<String> getHeaderNames() { return Collections.emptyList(); } @Override public String getCharacterEncoding() { return null; } @Override public String getContentType() { return null; } @Override public ServletOutputStream getOutputStream() { return null; } @Override @SuppressFBWarnings("DM_DEFAULT_ENCODING") public PrintWriter getWriter() { return new PrintWriter(System.out); } @Override public void setCharacterEncoding(String charset) { // not used } @Override public void setContentLength(int len) { // not used } @Override public void setContentLengthLong(long l) { // not used } @Override public void setContentType(String type) { // not used } @Override public void setBufferSize(int size) { // not used } @Override public int getBufferSize() { return 0; } @Override public void flushBuffer() { // not used } @Override public void resetBuffer() { // not used } @Override public boolean isCommitted() { return false; } @Override public void reset() { // not used } @Override public void setLocale(Locale loc) { // not used } 
Assistant: