diff --git a/webmagic-extension/src/test/java/us/codecraft/webmagic/formatter/DateFormatterTest.java b/webmagic-extension/src/test/java/us/codecraft/webmagic/formatter/DateFormatterTest.java
index a621e2d..fa276cb 100644
--- a/webmagic-extension/src/test/java/us/codecraft/webmagic/formatter/DateFormatterTest.java
+++ b/webmagic-extension/src/test/java/us/codecraft/webmagic/formatter/DateFormatterTest.java
@@ -1,10 +1,14 @@
 package us.codecraft.webmagic.formatter;
 
+import org.apache.commons.lang3.time.DateFormatUtils;
+import org.apache.commons.lang3.time.DateUtils;
 import org.junit.Test;
 import us.codecraft.webmagic.model.formatter.DateFormatter;
 
 import java.util.Date;
 
+import static org.assertj.core.api.Assertions.assertThat;
+
 /**
  * @author code4crafter@gmail.com
  */
@@ -13,8 +17,10 @@ public class DateFormatterTest {
     @Test
     public void testDateFormatter() throws Exception {
         DateFormatter dateFormatter = new DateFormatter();
-        dateFormatter.initParam(new String[]{"yyyy-MM-dd HH:mm"});
-        Date format = dateFormatter.format("2013-09-10 22:11");
-        System.out.println(format);
+        String pattern = "yyyy-MM-dd HH:mm";
+        Date date = DateUtils.parseDate("2013-09-10 22:11", new String[]{pattern});
+        dateFormatter.initParam(new String[]{pattern});
+        Date format = dateFormatter.format(DateFormatUtils.format(date, pattern));
+        assertThat(format).isEqualTo(date);
     }
 }
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 7733d4c..48f6073 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
@@ -1,14 +1,18 @@
 package us.codecraft.webmagic.model;
 
 import org.apache.commons.io.IOUtils;
+import org.apache.commons.lang3.time.DateFormatUtils;
 import org.junit.Test;
 import us.codecraft.webmagic.Page;
 import us.codecraft.webmagic.Request;
 import us.codecraft.webmagic.model.annotation.ExtractBy;
+import us.codecraft.webmagic.model.annotation.Formatter;
 import us.codecraft.webmagic.model.annotation.TargetUrl;
+import us.codecraft.webmagic.model.formatter.DateFormatter;
 import us.codecraft.webmagic.selector.PlainText;
 
 import java.io.IOException;
+import java.util.Date;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
@@ -34,6 +38,17 @@ public class ModelPageProcessorTest {
 
     }
 
+    public static class ModelDate {
+
+        @Formatter(value = "yyyyMMdd", formatter = DateFormatter.class)
+        @ExtractBy(value = "//div[@class='date']/text()", notNull = true)
+        private Date date;
+
+        public Date getDate() {
+            return date;
+        }
+    }
+
     @Test
     public void testMultiModel_should_not_skip_when_match() throws Exception {
         Page page = new Page();
@@ -54,6 +69,15 @@ public class ModelPageProcessorTest {
 
     }
 
+    @Test
+    public void testExtractDate() throws Exception {
+        ModelPageProcessor modelPageProcessor = ModelPageProcessor.create(null, ModelDate.class);
+        Page page = getMockPage();
+        modelPageProcessor.process(page);
+        ModelDate modelDate = (ModelDate) page.getResultItems().get(ModelDate.class.getCanonicalName());
+        assertThat(DateFormatUtils.format(modelDate.getDate(),"yyyyMMdd")).isEqualTo("20170603");
+    }
+
     private Page getMockPage() throws IOException {
         Page page = new Page();
         page.setRawText(IOUtils.toString(getClass().getClassLoader().getResourceAsStream("html/mock-webmagic.html")));
diff --git a/webmagic-extension/src/test/resources/html/mock-webmagic.html b/webmagic-extension/src/test/resources/html/mock-webmagic.html
index 436e1e0..d6039f9 100644
--- a/webmagic-extension/src/test/resources/html/mock-webmagic.html
+++ b/webmagic-extension/src/test/resources/html/mock-webmagic.html
@@ -5,6 +5,7 @@
     <title></title>
 </head>
 <body>
+<div class="date">20170603</div>
 <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>