diff --git a/webmagic-core/src/main/java/us/codecraft/webmagic/selector/HtmlNode.java b/webmagic-core/src/main/java/us/codecraft/webmagic/selector/HtmlNode.java
index e41267b..d0dbfcd 100644
--- a/webmagic-core/src/main/java/us/codecraft/webmagic/selector/HtmlNode.java
+++ b/webmagic-core/src/main/java/us/codecraft/webmagic/selector/HtmlNode.java
@@ -43,6 +43,19 @@ public class HtmlNode extends AbstractSelectable {
         return selectElements(xpathSelector);
     }
 
+    @Override
+    public Selectable selectList(Selector selector) {
+        if (selector instanceof BaseElementSelector) {
+           return selectElements((BaseElementSelector) selector);
+        }
+        return selectList(selector, getSourceTexts());
+    }
+
+    @Override
+    public Selectable select(Selector selector) {
+        return selectList(selector);
+    }
+
     /**
      * select elements
      *
diff --git a/webmagic-extension/src/test/java/us/codecraft/webmagic/model/GithubRepoTest.java b/webmagic-extension/src/test/java/us/codecraft/webmagic/model/GithubRepoTest.java
index d9501a2..1e9fd52 100644
--- a/webmagic-extension/src/test/java/us/codecraft/webmagic/model/GithubRepoTest.java
+++ b/webmagic-extension/src/test/java/us/codecraft/webmagic/model/GithubRepoTest.java
@@ -1,12 +1,13 @@
 package us.codecraft.webmagic.model;
 
-import junit.framework.Assert;
 import org.junit.Test;
-import us.codecraft.webmagic.downloader.MockGithubDownloader;
 import us.codecraft.webmagic.Site;
 import us.codecraft.webmagic.Task;
+import us.codecraft.webmagic.downloader.MockGithubDownloader;
 import us.codecraft.webmagic.pipeline.PageModelPipeline;
 
+import static org.assertj.core.api.Assertions.assertThat;
+
 /**
  * @author code4crafter@gmail.com <br>
  */
@@ -14,13 +15,13 @@ public class GithubRepoTest {
 
     @Test
     public void test() {
-        OOSpider.create(Site.me().addStartUrl("https://github.com/code4craft/webmagic").setSleepTime(0)
+        OOSpider.create(Site.me().setSleepTime(0)
                 , new PageModelPipeline<GithubRepo>() {
             @Override
             public void process(GithubRepo o, Task task) {
-                Assert.assertEquals(86, o.getStar());
-                Assert.assertEquals(70, o.getFork());
+                assertThat(o.getStar()).isEqualTo(86);
+                assertThat(o.getFork()).isEqualTo(70);
             }
-        }, GithubRepo.class).setDownloader(new MockGithubDownloader()).test("https://github.com/code4craft/webmagic");
+        }, GithubRepo.class).addUrl("https://github.com/code4craft/webmagic").setDownloader(new MockGithubDownloader()).test("https://github.com/code4craft/webmagic");
     }
 }
diff --git a/webmagic-extension/src/test/java/us/codecraft/webmagic/model/MockModel.java b/webmagic-extension/src/test/java/us/codecraft/webmagic/model/MockModel.java
new file mode 100644
index 0000000..6531053
--- /dev/null
+++ b/webmagic-extension/src/test/java/us/codecraft/webmagic/model/MockModel.java
@@ -0,0 +1,13 @@
+package us.codecraft.webmagic.model;
+
+import us.codecraft.webmagic.model.annotation.HelpUrl;
+import us.codecraft.webmagic.model.annotation.TargetUrl;
+
+/**
+ * @author code4crafer@gmail.com
+ */
+@TargetUrl(value = "http://webmagic.io/post/\\d+",sourceRegion = "//li[@class='post']")
+@HelpUrl(value = "http://webmagic.io/list/\\d+",sourceRegion = "//li[@class='list']")
+public class MockModel {
+
+}
diff --git a/webmagic-extension/src/test/java/us/codecraft/webmagic/model/ModelPageProcessorTest.java b/webmagic-extension/src/test/java/us/codecraft/webmagic/model/ModelPageProcessorTest.java
index 74f3f6a..7733d4c 100644
--- a/webmagic-extension/src/test/java/us/codecraft/webmagic/model/ModelPageProcessorTest.java
+++ b/webmagic-extension/src/test/java/us/codecraft/webmagic/model/ModelPageProcessorTest.java
@@ -1,5 +1,6 @@
 package us.codecraft.webmagic.model;
 
+import org.apache.commons.io.IOUtils;
 import org.junit.Test;
 import us.codecraft.webmagic.Page;
 import us.codecraft.webmagic.Request;
@@ -7,6 +8,8 @@ import us.codecraft.webmagic.model.annotation.ExtractBy;
 import us.codecraft.webmagic.model.annotation.TargetUrl;
 import us.codecraft.webmagic.selector.PlainText;
 
+import java.io.IOException;
+
 import static org.assertj.core.api.Assertions.assertThat;
 
 /**
@@ -40,6 +43,22 @@ public class ModelPageProcessorTest {
         ModelPageProcessor modelPageProcessor = ModelPageProcessor.create(null, ModelFoo.class, ModelBar.class);
         modelPageProcessor.process(page);
         assertThat(page.getResultItems().isSkip()).isFalse();
+    }
+
+    @Test
+    public void testExtractLinks() throws Exception {
+        ModelPageProcessor modelPageProcessor = ModelPageProcessor.create(null, MockModel.class);
+        Page page = getMockPage();
+        modelPageProcessor.process(page);
+        assertThat(page.getTargetRequests()).containsExactly(new Request("http://webmagic.io/list/1"), new Request("http://webmagic.io/list/2"), new Request("http://webmagic.io/post/1"), new Request("http://webmagic.io/post/2"));
 
     }
+
+    private Page getMockPage() throws IOException {
+        Page page = new Page();
+        page.setRawText(IOUtils.toString(getClass().getClassLoader().getResourceAsStream("html/mock-webmagic.html")));
+        page.setRequest(new Request("http://webmagic.io/list/0"));
+        page.setUrl(new PlainText("http://webmagic.io/list/0"));
+        return page;
+    }
 }
diff --git a/webmagic-extension/src/test/resouces/html/mock-webmagic.html b/webmagic-extension/src/test/resouces/html/mock-webmagic.html
new file mode 100644
index 0000000..436e1e0
--- /dev/null
+++ b/webmagic-extension/src/test/resouces/html/mock-webmagic.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html>
+<head lang="zh">
+    <meta charset="UTF-8">
+    <title></title>
+</head>
+<body>
+<ul>
+    <li class="list"><a href="http://webmagic.io/list/1"></a></li>
+    <li class="list"><a href="http://webmagic.io/list/2"></a></li>
+    <li class="list"><a href="http://webmagic.io/post/3"></a></li>
+    <li class="list"><a href="http://webmagic.io/post/4"></a></li>
+</ul>
+<ul>
+    <li class="post"><a href="http://webmagic.io/post/1"></a></li>
+    <li class="post"><a href="http://webmagic.io/post/2"></a></li>
+    <li class="post"><a href="http://webmagic.io/list/3"></a></li>
+    <li class="post"><a href="http://webmagic.io/list/4"></a></li>
+</ul>
+
+</body>
+</html>
\ No newline at end of file