Changes between Initial Version and Version 1 of demo_01

Timestamp:

04/05/2012 12:04:15 PM (14 years ago)

Author:

chenyang

Comment:

--

demo_01

@@ +1 @@
+
+== 单元测试应用示例——测试domain层对象 ==
+推广来源系统中，设计了一个对象cn.com.pcgames.gamehall2.domain.TmpAdRequest,该对象是标准的java bean对象,该对象的作用是保存用户每次请求注册引导页的数所据信息，包括用户ip(ip),推广来源id(srcid),[[BR]]
+游戏id(gameid),创建时间(createAt),请求referer(referer).
+{{{ #!java
+        private String ip;
+        private long srcid;
+        private Date createAt;
+        private long gameid;
+        
+        private String referer;
+
+        public String getReferer() {
+                return referer;
+        }
+        
+        public void setReferer(String referer) {
+                this.referer = referer;
+        }
+        
+        public String getIp() {
+                return ip;
+        }
+        public void setIp(String ip) {
+                this.ip = ip;
+        }
+        
+        public long getSrcid() {
+                return srcid;
+        }
+        public void setSrcid(long srcid) {
+                this.srcid = srcid;
+        }
+        public Date getCreateAt() {
+                return createAt;
+        }
+        public void setCreateAt(Date createAt) {
+                this.createAt = createAt;
+        }
+        
+        public long getGameid() {
+                return gameid;
+        }
+        public void setGameid(long gameid) {
+                this.gameid = gameid;
+        }
+}}}
+
+
+后台统计时，需要区分每次请求，是不是重复的请求，所以重写了该类的equals(),hashCode()方法
+{{{ #!java
+   @Override
+        public boolean equals(Object obj) {
+                if(obj == null){
+                        return false;
+                }
+                if(obj instanceof TmpAdRequest){
+                        TmpAdRequest adRequest = (TmpAdRequest)obj;
+                        EqualsBuilder equalsBuilder = new EqualsBuilder();
+                        return equalsBuilder.append(this.ip, adRequest.getIp()).append(this.srcid, adRequest.getSrcid()).append(this.referer, adRequest.getReferer()).isEquals();
+                        
+                }else{
+                        return false;
+                }
+        }
+        @Override
+        public int hashCode() {
+                HashCodeBuilder builder = new HashCodeBuilder(17,37);
+                return builder.append(this.srcid).append(this.ip).append(this.referer).toHashCode(); 
+        }
+
+}}}
+如何验证我们的重写的equals的正确性呢?我们书写单元测试来验证
+{{{ #!java
+public class TmpAdRequestTest {
+        
+        @Test
+        public void equals() throws Exception {
+                
+                TmpAdRequest ad_request1 = new TmpAdRequest();
+                ad_request1.setIp("192.168.20.92");
+                ad_request1.setSrcid(1L);
+                ad_request1.setGameid(1);
+                
+                Date date = org.apache.commons.lang.time.DateUtils.parseDate("2011-12-12 23:23:23", new String[]{"yyyy-MM-dd HH:mm:ss"});
+                ad_request1.setCreateAt(date);
+                
+                TmpAdRequest ad_request2 = new TmpAdRequest();
+                ad_request2.setIp("192.168.20.92");
+                ad_request2.setSrcid(1L);
+                ad_request2.setGameid(1);
+                ad_request2.setCreateAt(new Date());
+                
+                List<TmpAdRequest> list = new ArrayList<TmpAdRequest>();
+                
+                //ad_request1与ad_request2对象有相同的srcid,referer,ip,断言ad_request1.equals(ad_request2)
+                Assert.assertTrue(ad_request1.equals(ad_request2));
+                
+                Assert.assertEquals(ad_request1, ad_request2);
+                
+                if(!list.contains(ad_request1)){
+                        list.add(ad_request1);
+                }
+                
+                if(!list.contains(ad_request2)){
+                        list.add(ad_request2);
+                }
+                
+               //将ad_request1与ad_request2加入同一个list以后，断言list.size() == 1
+                Assert.assertTrue(list.size() == 1);
+                
+                
+        }
+}
+}}}