diff --git a/pom.xml b/pom.xml
index 0914e269..7fcdd069 100644
--- a/pom.xml
+++ b/pom.xml
@@ -64,6 +64,12 @@
                 <version>4.11</version>
                 <scope>test</scope>
             </dependency>
+            <dependency>
+                <groupId>org.mockito</groupId>
+                <artifactId>mockito-all</artifactId>
+                <version>1.10.19</version>
+                <scope>test</scope>
+            </dependency>
             <dependency>
                 <groupId>org.apache.httpcomponents</groupId>
                 <artifactId>httpclient</artifactId>
diff --git a/webmagic-core/pom.xml b/webmagic-core/pom.xml
index fbd5034c..ad969612 100644
--- a/webmagic-core/pom.xml
+++ b/webmagic-core/pom.xml
@@ -40,6 +40,11 @@
             <artifactId>slf4j-api</artifactId>
         </dependency>
 
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-all</artifactId>
+        </dependency>
+
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-log4j12</artifactId>
diff --git a/webmagic-samples/src/test/java/us/codecraft/webmagic/samples/scheduler/DuplicateRemovedSchedulerTest.java b/webmagic-samples/src/test/java/us/codecraft/webmagic/samples/scheduler/DuplicateRemovedSchedulerTest.java
new file mode 100644
index 00000000..6f7a5d19
--- /dev/null
+++ b/webmagic-samples/src/test/java/us/codecraft/webmagic/samples/scheduler/DuplicateRemovedSchedulerTest.java
@@ -0,0 +1,17 @@
+package us.codecraft.webmagic.samples.scheduler;
+
+import org.junit.Test;
+
+/**
+ * @author code4crafter@gmail.com
+ *         Date: 17/3/11
+ *         Time: 上午11:26
+ */
+public class DuplicateRemovedSchedulerTest {
+
+    @Test
+    public void testDuplicateRemoved() throws Exception {
+        
+
+    }
+}