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      1 /*
      2  * Copyright (c) 2007 Mockito contributors
      3  * This program is made available under the terms of the MIT License.
      4  */
      5 
      6 package org.mockito.internal.matchers;
      7 
      8 import org.hamcrest.Description;
      9 import org.hamcrest.SelfDescribing;
     10 import org.mockito.ArgumentMatcher;
     11 
     12 import java.io.Serializable;
     13 
     14 public class Equals extends ArgumentMatcher<Object> implements ContainsExtraTypeInformation, Serializable {
     15 
     16     private static final long serialVersionUID = -3395637450058086891L;
     17     private final Object wanted;
     18 
     19     public Equals(Object wanted) {
     20         this.wanted = wanted;
     21     }
     22 
     23     public boolean matches(Object actual) {
     24         return Equality.areEqual(this.wanted, actual);
     25     }
     26 
     27     public void describeTo(Description description) {
     28         description.appendText(describe(wanted));
     29     }
     30 
     31     public String describe(Object object) {
     32         String text = quoting();
     33         text+="" + object;
     34         text+= quoting();
     35         return text;
     36     }
     37 
     38     private String quoting() {
     39         if (wanted instanceof String) {
     40             return "\"";
     41         } else if (wanted instanceof Character) {
     42             return "'";
     43         } else {
     44             return "";
     45         }
     46     }
     47 
     48     protected final Object getWanted() {
     49         return wanted;
     50     }
     51 
     52     @Override
     53     public boolean equals(Object o) {
     54         if (o == null || !this.getClass().equals(o.getClass())) {
     55             return false;
     56         }
     57         Equals other = (Equals) o;
     58         return this.wanted == null && other.wanted == null || this.wanted != null && this.wanted.equals(other.wanted);
     59     }
     60 
     61     @Override
     62     public int hashCode() {
     63         return 1;
     64     }
     65 
     66     public SelfDescribing withExtraTypeInfo() {
     67         return new SelfDescribing() {
     68             public void describeTo(Description description) {
     69                 description.appendText(describe("("+ wanted.getClass().getSimpleName() +") " + wanted));
     70             }};
     71     }
     72 
     73     public boolean typeMatches(Object object) {
     74         return wanted != null && object != null && object.getClass() == wanted.getClass();
     75     }
     76 }