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1 /*
2  * Copyright (C) 2011 The Guava Authors
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.google.common.collect;
18 
19 import static com.google.common.testing.SerializableTester.reserialize;
20 import static junit.framework.Assert.assertEquals;
21 import static junit.framework.Assert.assertTrue;
22 
23 import com.google.common.annotations.GwtCompatible;
24 import com.google.common.annotations.GwtIncompatible;
25 import com.google.common.testing.SerializableTester;
26 import com.google.errorprone.annotations.CanIgnoreReturnValue;
27 import java.util.Collection;
28 import java.util.Set;
29 
30 /**
31  * Variant of {@link SerializableTester} that does not require the reserialized object's class to be
32  * identical to the original.
33  *
34  * @author Chris Povirk
35  */
36 /*
37  * The whole thing is really @GwtIncompatible, but GwtJUnitConvertedTestModule doesn't have a
38  * parameter for non-GWT, non-test files, and it didn't seem worth adding one for this unusual case.
39  */
40 @GwtCompatible(emulated = true)
41 final class LenientSerializableTester {
42   /*
43    * TODO(cpovirk): move this to c.g.c.testing if we allow for c.g.c.annotations dependencies so
44    * that it can be GWTified?
45    */
46   @CanIgnoreReturnValue
47   @GwtIncompatible // SerializableTester
reserializeAndAssertLenient(Set<E> original)48   static <E> Set<E> reserializeAndAssertLenient(Set<E> original) {
49     Set<E> copy = reserialize(original);
50     assertEquals(original, copy);
51     assertTrue(copy instanceof ImmutableSet);
52     return copy;
53   }
54 
55   @CanIgnoreReturnValue
56   @GwtIncompatible // SerializableTester
reserializeAndAssertLenient(Multiset<E> original)57   static <E> Multiset<E> reserializeAndAssertLenient(Multiset<E> original) {
58     Multiset<E> copy = reserialize(original);
59     assertEquals(original, copy);
60     assertTrue(copy instanceof ImmutableMultiset);
61     return copy;
62   }
63 
64   @CanIgnoreReturnValue
65   @GwtIncompatible // SerializableTester
reserializeAndAssertElementsEqual(Collection<E> original)66   static <E> Collection<E> reserializeAndAssertElementsEqual(Collection<E> original) {
67     Collection<E> copy = reserialize(original);
68     assertTrue(Iterables.elementsEqual(original, copy));
69     assertTrue(copy instanceof ImmutableCollection);
70     return copy;
71   }
72 
LenientSerializableTester()73   private LenientSerializableTester() {}
74 }
75