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23 
24 /* @test
25    @bug 6860438
26    @summary Tests various MultiUIDefaults methods
27    @author Peter Zhelezniakov
28    @run main Test6860438
29 */
30 
31 import java.util.Enumeration;
32 import java.util.Map.Entry;
33 import java.util.Set;
34 import javax.swing.UIManager;
35 
36 public class Test6860438
37 {
38     static final String KEY = "Test6860438.key";
39     static final String VALUE = "Test6860438.value";
40 
check(Object key, Object value, boolean present, int size)41     void check(Object key, Object value, boolean present, int size) {
42         check(UIManager.get(key) == value, "UIManager.get()");
43         check(UIManager.getDefaults().size() == size, "MultiUIDefaults.size()");
44 
45         checkEnumeration(UIManager.getDefaults().keys(),
46                 key, present, "MultiUIDefaults.keys()");
47         checkEnumeration(UIManager.getDefaults().elements(),
48                 value, present, "MultiUIDefaults.elements()");
49 
50         // check MultiUIDefaults.entrySet()
51         boolean found = false;
52         Set<Entry<Object, Object>> entries = UIManager.getDefaults().entrySet();
53         for (Entry<Object, Object> e: entries) {
54             if (e.getKey() == key) {
55                 check(e.getValue() == value, "MultiUIDefaults.entrySet()");
56                 found = true;
57             }
58         }
59         check(found == present, "MultiUIDefaults.entrySet()");
60     }
61 
checkEnumeration(Enumeration<Object> e, Object elem, boolean present, String error)62     void checkEnumeration(Enumeration<Object> e, Object elem,
63             boolean present, String error) {
64         boolean found = false;
65         while (e.hasMoreElements()) {
66             if (e.nextElement() == elem) {
67                 found = true;
68             }
69         }
70         check(found == present, error);
71     }
72 
check(boolean condition, String methodName)73     void check(boolean condition, String methodName) {
74         if (! condition) {
75             throw new RuntimeException(methodName + " failed");
76         }
77     }
78 
test()79     void test() {
80         int size = UIManager.getDefaults().size();
81 
82         // create a new value, size increases
83         UIManager.getLookAndFeelDefaults().put(KEY, VALUE);
84         check(KEY, VALUE, true, size + 1);
85 
86         // override the value, size remains the same
87         UIManager.put(KEY, VALUE);
88         check(KEY, VALUE, true, size + 1);
89 
90         // remove the value, size decreases
91         UIManager.getDefaults().remove(KEY);
92         check(KEY, null, false, size);
93     }
94 
main(String[] args)95     public static void main(String[] args) {
96         new Test6860438().test();
97     }
98 }
99