code: @Test public void getContexts(){
    Deployment deployment=mock(Deployment.class);
    DeploymentInfo info=new DeploymentInfo();
    String expectedPath="";
    info.setContextPath(expectedPath);
    HttpHandler handler=mock(HttpHandler.class);
    when(deployment.getDeploymentInfo()).thenReturn(info);
    this.undertowHost.registerDeployment(deployment,handler);
    Iterator<Context> result=this.host.getContexts().iterator();
    assertTrue(result.hasNext());
    Context context=result.next();
    assertSame(this.host,context.getHost());
    assertSame(expectedPath,context.getPath());
    assertFalse(result.hasNext());
  }
  