The document describes unit tests for a PublicHomePageRedirector class that redirects requests for a course sites application. There are two test scenarios: 1) a request missing the "www" subdomain, and 2) a request from the "coursesites.blackboard.com" domain. Both scenarios create mock request and response objects, pass them to the redirector class, and assert that the response is redirected to the expected "index.html" page. The tests are run from the command line using JUnit through an Ant build script.

1. Unit Testing Coursesites

2. Context PublicHomePageRedirector public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { //on request to the site / or index.html redirect to the servlet //we only want to hit on / HttpServletRequesthttpRequest = (HttpServletRequest)request; HttpServletResponsehttpResponse = (HttpServletResponse)response; String serverName = httpRequest.getHeader("Host"); intfirstperiodIndex = serverName.indexOf('.'); intlastperiodIndex = serverName.lastIndexOf('.'); /* * so for wayank12teacher2.coursesites-stage.com * hostHeader will be wayank12teacher2 setting the stage to check whether * to forward to homepage.jsp or redirects to pages/index.html as in the past */ String hostHeader = serverName.substring(0, firstperiodIndex).toLowerCase();

3. “No class is an island …” PublicHomePageRedirectorcollaborates with (depends on) ServletRequest ServletResponse FilterChain

4. Context..(2) /* taking care of missing www in the request * aka coursesites-stage.com, coursesites.com * making sure that redirects from OpenID login through Facebook or Twitter * happen flawlessly * */ if (!serverName.startsWith("www") && (firstperiodIndex == lastperiodIndex)) { String responseUrlPath = "https://" + "www." + serverName + "/webapps/Bb-sites-course-creation-BBLEARN/pages/index.html"; httpResponse.sendRedirect(responseUrlPath); return; }

5. Context…(3) else if (serverName.equalsIgnoreCase("coursesites.blackboard.com")){ serverName = "coursesites.com"; String responseUrlPath = "https://" + "www." + serverName + "/webapps/Bb-sites-course-creation-BBLEARN/pages/index.html"; httpResponse.sendRedirect(responseUrlPath); return; }

6. Scenario(s) Request with missing www (1) Request from coursesites.blackboard.com (2)

7. Unit Test Junit (command line through Ant) Mock (for collaborators  ServletRequest, ServletResponse, Chain)

8. TestCase(s) public class CourseSitesFilterTest { @Test public void testMissingWWW() throws Exception{ … } @Test public void testBlackBoardDomain() throws Exception{ …}

9. Scenario 1 public void testMissingWWW() throws Exception{ MockHttpServletRequest request = new MockHttpServletRequest(); MockHttpServletResponse response = new MockHttpServletResponse(); //request.setMethod("GET"); request.addHeader("Host","coursesites.com"); //MockHttpServletRequest request = new FilterChain chain = Mockito.mock(FilterChain.class); CourseSitesFilter filter = new CourseSitesFilter(); filter.doFilter(request, response, chain); //System.out.println(request.getAttribute("hello")); //System.out.println(request.getRequestURI()); //System.out.println(response.getForwardedUrl()); System.out.println("Output: " + response.getRedirectedUrl()); assertTrue("Redirects to index.html", response.getRedirectedUrl().contains("index.html")); }

10. Scenario 2 public void testBlackBoardDomain() throws Exception{ MockHttpServletRequest request = new MockHttpServletRequest(); MockHttpServletResponse response = new MockHttpServletResponse(); //request.setMethod("GET"); request.addHeader("Host","coursesites.blackboard.com"); //MockHttpServletRequest request = new MockHttpServletRequest("GET", "/invoiceView.app"); FilterChain chain = Mockito.mock(FilterChain.class); CourseSitesFilter filter = new CourseSitesFilter(); filter.doFilter(request, response, chain); //System.out.println(request.getRequestURI()); //System.out.println(response.getForwardedUrl()); System.out.println("Output: " + response.getRedirectedUrl()); assertTrue("Redirects to index.html", response.getRedirectedUrl().contains("index.html")); }

11. Junit/Ant <target name="junit" depends="compile"> <mkdir dir="${report.dir}"/> <junitprintsummary="yes" haltonfailure="yes" showoutput="yes"> <classpath> <path refid="classpath"/> <path location="${build.dest}"/> <path location="${build.test.dest}"/> </classpath> <formatter type="xml"/> <batchtest fork="yes"> <fileset dir="${test.dir}" includes="**/*Test.java"/> </batchtest> </junit> </target>

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