@Test
public void test_addPath() {

    ResourceCacheControl resourceCacheControl = new ResourceCacheControl();
    Assert.assertEquals("/a/b/", resourceCacheControl.addPath("a/b"));
    Assert.assertEquals("/a/b/", resourceCacheControl.addPath("/a/b"));
    Assert.assertEquals("/a/b/", resourceCacheControl.addPath("a/b/"));
    Assert.assertEquals("/a/b/", resourceCacheControl.addPath("/a/b/"));
}