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11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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13  * accompanied this code).
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23 
24 import org.testng.annotations.Test;
25 import java.lang.reflect.Array;
26 
27 import static org.testng.Assert.assertEquals;
28 
29 /**
30  * @author Robert Field
31  */
32 
33 @Test
34 public class MethodReferenceTestVarArgs {
35 
36     interface SII {
37 
m(Integer a, Integer b)38         String m(Integer a, Integer b);
39     }
40 
41     interface Siii {
42 
m(int a, int b, int c)43         String m(int a, int b, int c);
44     }
45 
46     interface Si {
47 
m(int a)48         String m(int a);
49     }
50 
51     interface SaO {
52 
m(Object[] a)53         String m(Object[] a);
54     }
55 
56     interface Sai {
57 
m(int[] a)58         String m(int[] a);
59     }
60 
61     interface Svi {
62 
m(int... va)63         String m(int... va);
64     }
65 
66     // These should be processed as var args
67 
xvI(Integer... vi)68     static String xvI(Integer... vi) {
69         StringBuilder sb = new StringBuilder("xvI:");
70         for (Integer i : vi) {
71             sb.append(i);
72             sb.append("-");
73         }
74         return sb.toString();
75     }
76 
xIvI(Integer f, Integer... vi)77     static String xIvI(Integer f, Integer... vi) {
78         StringBuilder sb = new StringBuilder("xIvI:");
79         sb.append(f);
80         for (Integer i : vi) {
81             sb.append(i);
82             sb.append("-");
83         }
84         return sb.toString();
85     }
86 
xvi(int... vi)87     static String xvi(int... vi) {
88         int sum = 0;
89         for (int i : vi) {
90             sum += i;
91         }
92         return "xvi:" + sum;
93     }
94 
xIvi(Integer f, int... vi)95     static String xIvi(Integer f, int... vi) {
96         int sum = 0;
97         for (int i : vi) {
98             sum += i;
99         }
100         return "xIvi:(" + f + ")" + sum;
101     }
102 
xvO(Object... vi)103     static String xvO(Object... vi) {
104         StringBuilder sb = new StringBuilder("xvO:");
105         for (Object i : vi) {
106             if (i.getClass().isArray()) {
107                 sb.append("[");
108                 int len = Array.getLength(i);
109                 for (int x = 0; x < len; ++x)  {
110                     sb.append(Array.get(i, x));
111                     sb.append(",");
112                 }
113                 sb.append("]");
114 
115             } else {
116                 sb.append(i);
117             }
118             sb.append("*");
119         }
120         return sb.toString();
121     }
122 
testVarArgsSuperclass()123     public void testVarArgsSuperclass() {
124         SII q;
125 
126         q = MethodReferenceTestVarArgs::xvO;
127         assertEquals(q.m(55,66), "xvO:55*66*");
128     }
129 
testVarArgsArray()130     public void testVarArgsArray() {
131         Sai q;
132 
133         q = MethodReferenceTestVarArgs::xvO;
134         assertEquals(q.m(new int[] { 55,66 } ), "xvO:[55,66,]*");
135     }
136 
testVarArgsII()137     public void testVarArgsII() {
138         SII q;
139 
140         q = MethodReferenceTestVarArgs::xvI;
141         assertEquals(q.m(33,7), "xvI:33-7-");
142 
143         q = MethodReferenceTestVarArgs::xIvI;
144         assertEquals(q.m(50,40), "xIvI:5040-");
145 
146         q = MethodReferenceTestVarArgs::xvi;
147         assertEquals(q.m(100,23), "xvi:123");
148 
149         q = MethodReferenceTestVarArgs::xIvi;
150         assertEquals(q.m(9,21), "xIvi:(9)21");
151     }
152 
testVarArgsiii()153     public void testVarArgsiii() {
154         Siii q;
155 
156         q = MethodReferenceTestVarArgs::xvI;
157         assertEquals(q.m(3, 2, 1), "xvI:3-2-1-");
158 
159         q = MethodReferenceTestVarArgs::xIvI;
160         assertEquals(q.m(888, 99, 2), "xIvI:88899-2-");
161 
162         q = MethodReferenceTestVarArgs::xvi;
163         assertEquals(q.m(900,80,7), "xvi:987");
164 
165         q = MethodReferenceTestVarArgs::xIvi;
166         assertEquals(q.m(333,27, 72), "xIvi:(333)99");
167     }
168 
testVarArgsi()169     public void testVarArgsi() {
170         Si q;
171 
172         q = MethodReferenceTestVarArgs::xvI;
173         assertEquals(q.m(3), "xvI:3-");
174 
175         q = MethodReferenceTestVarArgs::xIvI;
176         assertEquals(q.m(888), "xIvI:888");
177 
178         q = MethodReferenceTestVarArgs::xvi;
179         assertEquals(q.m(900), "xvi:900");
180 
181         q = MethodReferenceTestVarArgs::xIvi;
182         assertEquals(q.m(333), "xIvi:(333)0");
183     }
184 
185     // These should NOT be processed as var args
186 
testVarArgsaO()187     public void testVarArgsaO() {
188         SaO q;
189 
190         q = MethodReferenceTestVarArgs::xvO;
191         assertEquals(q.m(new String[] { "yo", "there", "dude" }), "xvO:yo*there*dude*");
192     }
193 
194 
195 }
196