Add more tests for plugin installation
diff --git a/tests/install-plugins/Dockerfile b/tests/install-plugins/Dockerfile
index ad1db16..9d4f63d 100644
--- a/tests/install-plugins/Dockerfile
+++ b/tests/install-plugins/Dockerfile
@@ -1,3 +1,3 @@
 FROM bats-jenkins
 
-RUN /usr/local/bin/install-plugins.sh maven-plugin:2.7.1
+RUN /usr/local/bin/install-plugins.sh maven-plugin:2.7.1 ant:1.3