HashMap<String, Object> hashMap = new HashMap<String, Object>();
hashMap.put("var1", (String)null);
assertEquals("instantiate template", "artifacts", template.expand(hashMap));
hashMap = new HashMap<String, Object>();
hashMap.put("var2", (String)null);
assertEquals("instantiate template", "artifacts", template.expand(hashMap));
hashMap = new HashMap<String, Object>();
hashMap.put("var1", (String)null);
hashMap.put("var2", (String)null);
assertEquals("instantiate template", "artifacts", template.expand(hashMap));
hashMap = new HashMap<String, Object>();