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17 package org.apache.commons.functor.adapter;
18
19 import static org.junit.Assert.assertEquals;
20 import static org.junit.Assert.assertNotNull;
21 import static org.junit.Assert.assertNull;
22
23 import org.apache.commons.functor.BaseFunctorTest;
24 import org.apache.commons.functor.UnaryFunction;
25 import org.apache.commons.functor.core.Constant;
26 import org.junit.Test;
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32 public class TestUnaryPredicateUnaryFunction extends BaseFunctorTest {
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37 protected Object makeFunctor() {
38 return new UnaryPredicateUnaryFunction<Object>(Constant.TRUE);
39 }
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44 @Test
45 public void testTestWhenTrue() throws Exception {
46 UnaryFunction<Object, Boolean> f = new UnaryPredicateUnaryFunction<Object>(Constant.TRUE);
47 assertEquals(Boolean.TRUE,f.evaluate(null));
48 }
49
50 @Test
51 public void testTestWhenFalse() throws Exception {
52 UnaryFunction<Object, Boolean> f = new UnaryPredicateUnaryFunction<Object>(Constant.FALSE);
53 assertEquals(Boolean.FALSE,f.evaluate(null));
54 }
55
56 @Test
57 public void testEquals() throws Exception {
58 UnaryFunction<Object, Boolean> f = new UnaryPredicateUnaryFunction<Object>(Constant.TRUE);
59 assertEquals(f,f);
60 assertObjectsAreEqual(f,new UnaryPredicateUnaryFunction<Object>(Constant.TRUE));
61 assertObjectsAreNotEqual(f,Constant.of("x"));
62 assertObjectsAreNotEqual(f,new UnaryPredicateUnaryFunction<Object>(Constant.FALSE));
63 }
64
65 @Test
66 public void testAdaptNull() throws Exception {
67 assertNull(UnaryFunctionUnaryPredicate.adapt(null));
68 }
69
70 @Test
71 public void testAdapt() throws Exception {
72 assertNotNull(UnaryPredicateUnaryFunction.adapt(Constant.TRUE));
73 }
74 }