add tests #483

webmagic-core/src/test/java/us/codecraft/webmagic/RequestTest.java

+package us.codecraft.webmagic;
+
+import org.junit.Test;
+import us.codecraft.webmagic.utils.HttpConstant;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * @author code4crafter@gmail.com
+ *         Date: 17/3/11
+ */
+public class RequestTest {
+
+    @Test
+    public void testEqualsAndHashCode() throws Exception {
+        Request requestA = new Request("http://www.google.com/");
+        Request requestB = new Request("http://www.google.com/");
+        assertThat(requestA.hashCode()).isEqualTo(requestB.hashCode());
+        assertThat(requestA).isEqualTo(requestB);
+        requestA.setMethod(HttpConstant.Method.GET);
+        requestA.setMethod(HttpConstant.Method.POST);
+        assertThat(requestA).isNotEqualTo(requestB);
+        assertThat(requestA.hashCode()).isNotEqualTo(requestB.hashCode());
+    }
+}