[som] Render alerts that don't have extensions.

go/src/infra/appengine/sheriff-o-matic/test/som-extension-build-failure-test.html

Index: go/src/infra/appengine/sheriff-o-matic/test/som-extension-build-failure-test.html
diff --git a/go/src/infra/appengine/sheriff-o-matic/test/som-extension-build-failure-test.html b/go/src/infra/appengine/sheriff-o-matic/test/som-extension-build-failure-test.html
index a17075207c86296cd05a1e469bf6e4c0d9af32d0..dea044b17a06a3062b05e07c904139477e4cb093 100644
--- a/go/src/infra/appengine/sheriff-o-matic/test/som-extension-build-failure-test.html
+++ b/go/src/infra/appengine/sheriff-o-matic/test/som-extension-build-failure-test.html
@@ -48,7 +48,7 @@
       element._uberify = (url) => { return url; };
       flush( () => {
         let itm = element.$$("#test_results");
-        assert.isDefined(itm);
+        assert.isNotNull(itm);
         assert.equal(
             itm.children[0].href,
             "https://test-results.appspot.com/dashboards/flakiness_dashboard" +
@@ -57,6 +57,29 @@
       });
 
     });
+
+    test('renders suspect CLs', function(done) {
+      element.extension = {
+        reasons: [{
+          "step": "wekbit_tests",
+          "test_names": [
+            "best_test",
+          ],
+        }],
+        suspected_cls: [
+          {revision: '1234'},
+        ],
+      };
+      element._uberify = (url) => { return url; };
+      flush( () => {
+        let itm = element.$$("#findit-results");
+        assert.isNotNull(itm);
+        assert.equal(
+            itm.children[1].href, "https://crrev.com/1234");
+        done();
+      });
+
+    });
   });
 })();
 </script>