diff --git a/src/test/java/org/apache/sling/crankstart/launcher/CrankstartBootstrapTest.java b/src/test/java/org/apache/sling/crankstart/launcher/CrankstartBootstrapTest.java
index 0de1a73..9c91184 100644
--- a/src/test/java/org/apache/sling/crankstart/launcher/CrankstartBootstrapTest.java
+++ b/src/test/java/org/apache/sling/crankstart/launcher/CrankstartBootstrapTest.java
@@ -135,6 +135,15 @@
         assertEquals("was set by test-services bundle", System.getProperty(TEST_SYSTEM_PROPERTY));
     }
     
+    @Test
+    @Retry(timeoutMsec=10000, intervalMsec=250)
+    public void testJUnitServlet() throws Exception {
+        final String path = "/system/sling/junit";
+        final GetMethod get = new GetMethod(baseUrl + path);
+        client.executeMethod(get);
+        assertEquals("Expecting JUnit servlet to be installed via sling extension command, at " + get.getURI(), 200, get.getStatusCode());
+    }
+    
     private static String getOsgiStoragePath() {
         final File tmpRoot = new File(System.getProperty("java.io.tmpdir"));
         final Random random = new Random();
diff --git a/src/test/resources/launcher-test.crank.txt b/src/test/resources/launcher-test.crank.txt
index a250a44..8bc7b3b 100644
--- a/src/test/resources/launcher-test.crank.txt
+++ b/src/test/resources/launcher-test.crank.txt
@@ -26,6 +26,7 @@
 bundle mvn:org.apache.sling/org.apache.sling.commons.osgi/2.2.1-SNAPSHOT
 bundle mvn:org.apache.sling/org.apache.sling.commons.log/2.1.2
 bundle mvn:org.apache.felix/org.apache.felix.configadmin/1.6.0
+bundle mvn:org.apache.felix/org.apache.felix.webconsole/3.1.6
 
 # The crankstart.api.fragment bundle makes the crankstart.api package available
 # to bundles, required for bundles to provide crankstart extension commands like
@@ -33,6 +34,13 @@
 bundle mvn:org.apache.sling/org.apache.sling.crankstart.api.fragment/0.0.1-SNAPSHOT
 bundle mvn:org.apache.sling/org.apache.sling.crankstart.test.services/0.0.1-SNAPSHOT
 
+# Test our Sling extension commands, that add a bundle via the Sling installer
+# (which requires commons.json and jcr-wrapper)
+bundle mvn:org.apache.sling/org.apache.sling.installer.core/3.5.0
+bundle mvn:org.apache.sling/org.apache.sling.commons.json/2.0.6
+bundle mvn:org.apache.sling/org.apache.sling.jcr.jcr-wrapper/2.0.0
+bundle mvn:org.apache.sling/org.apache.sling.crankstart.sling.extensions/0.0.1-SNAPSHOT
+
 # Now start our bundles
 start.all.bundles
 
@@ -52,5 +60,8 @@
 # Test an extension command provided by our test-services bundle
 test.system.property the.test.system.property was set by test-services bundle
   
+# Add the JUnit core via the Sling installer and our sling.extensions
+sling.installer.resource mvn:org.apache.sling/org.apache.sling.junit.core/1.0.8
+  
 # Informative log  
 log felix http service should come up at http://localhost:${http.port}
\ No newline at end of file