protected void assertThatTheRightLibvirtApiIsInvokedForRunInstance() throws Exception {
    int[] domains = stubLibvirtConnection.listDomains();
    assertEquals(1, domains.length);

    Domain domain = stubLibvirtConnection.domainLookupByID(domains[0]);
    assertEquals(domain.getName(), instanceId);

    String domainXml = domain.getXMLDesc(0);
    assertThatDomainXmlContainsNecessaryFields(domainXml);
  }
 @After
 public void resetLibvirtConnection() {
   stubLibvirtConnection.reset();
 }