Merge "Create unit test for index template render"

diff --git a/gerrit-httpd/src/main/java/com/google/gerrit/httpd/raw/IndexServlet.java b/gerrit-httpd/src/main/java/com/google/gerrit/httpd/raw/IndexServlet.java
index b55cf6c..107f584 100644
--- a/gerrit-httpd/src/main/java/com/google/gerrit/httpd/raw/IndexServlet.java
+++ b/gerrit-httpd/src/main/java/com/google/gerrit/httpd/raw/IndexServlet.java

@@ -34,7 +34,7 @@
 
 public class IndexServlet extends HttpServlet {
   private static final long serialVersionUID = 1L;
-  private final byte[] indexSource;
+  protected final byte[] indexSource;
 
   IndexServlet(String canonicalURL, @Nullable String cdnPath) throws URISyntaxException {
     String resourcePath = "com/google/gerrit/httpd/raw/PolyGerritIndexHtml.soy";

diff --git a/gerrit-httpd/src/test/java/com/google/gerrit/httpd/raw/IndexServletTest.java b/gerrit-httpd/src/test/java/com/google/gerrit/httpd/raw/IndexServletTest.java
index 7133cf6..0c3e1be 100644
--- a/gerrit-httpd/src/test/java/com/google/gerrit/httpd/raw/IndexServletTest.java
+++ b/gerrit-httpd/src/test/java/com/google/gerrit/httpd/raw/IndexServletTest.java

@@ -21,6 +21,16 @@
 import org.junit.Test;
 
 public class IndexServletTest {
+  class TestIndexServlet extends IndexServlet {
+    TestIndexServlet(String canonicalURL, String cdnPath) throws URISyntaxException {
+      super(canonicalURL, cdnPath);
+    }
+
+    String getIndexSource() {
+      return new String(indexSource);
+    }
+  }
+
   @Test
   public void noPathAndNoCDN() throws URISyntaxException {
     SoyMapData data = IndexServlet.getTemplateData("http://example.com/", null);
@@ -52,4 +62,15 @@
     assertThat(data.getSingle("staticResourcePath").stringValue())
         .isEqualTo("http://my-cdn.com/foo/bar/");
   }
+
+  @Test
+  public void renderTemplate() throws URISyntaxException {
+    String testCanonicalUrl = "foo-url";
+    String testCdnPath = "bar-cdn";
+    TestIndexServlet servlet = new TestIndexServlet(testCanonicalUrl, testCdnPath);
+    String output = servlet.getIndexSource();
+    assertThat(output).contains("<!DOCTYPE html>");
+    assertThat(output).contains("window.CANONICAL_PATH = '" + testCanonicalUrl);
+    assertThat(output).contains("<link rel=\"preload\" href=\"" + testCdnPath);
+  }
 }