forked from ReactiveX/RxJava
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathTransformerTest.java
More file actions
167 lines (144 loc) · 5.4 KB
/
TransformerTest.java
File metadata and controls
167 lines (144 loc) · 5.4 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
/**
* Copyright (c) 2016-present, RxJava Contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License is
* distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See
* the License for the specific language governing permissions and limitations under the License.
*/
package io.reactivex;
import io.reactivex.exceptions.TestException;
import org.junit.Test;
import org.reactivestreams.Publisher;
import static org.junit.Assert.*;
public class TransformerTest {
@Test
public void flowableTransformerThrows() {
try {
Flowable.just(1).compose(new FlowableTransformer<Integer, Integer>() {
@Override
public Publisher<Integer> apply(Flowable<Integer> v) {
throw new TestException("Forced failure");
}
});
fail("Should have thrown!");
} catch (TestException ex) {
assertEquals("Forced failure", ex.getMessage());
}
}
@Test
public void observableTransformerThrows() {
try {
Observable.just(1).compose(new ObservableTransformer<Integer, Integer>() {
@Override
public Observable<Integer> apply(Observable<Integer> v) {
throw new TestException("Forced failure");
}
});
fail("Should have thrown!");
} catch (TestException ex) {
assertEquals("Forced failure", ex.getMessage());
}
}
@Test
public void singleTransformerThrows() {
try {
Single.just(1).compose(new SingleTransformer<Integer, Integer>() {
@Override
public Single<Integer> apply(Single<Integer> v) {
throw new TestException("Forced failure");
}
});
fail("Should have thrown!");
} catch (TestException ex) {
assertEquals("Forced failure", ex.getMessage());
}
}
@Test
public void maybeTransformerThrows() {
try {
Maybe.just(1).compose(new MaybeTransformer<Integer, Integer>() {
@Override
public Maybe<Integer> apply(Maybe<Integer> v) {
throw new TestException("Forced failure");
}
});
fail("Should have thrown!");
} catch (TestException ex) {
assertEquals("Forced failure", ex.getMessage());
}
}
@Test
public void completableTransformerThrows() {
try {
Completable.complete().compose(new CompletableTransformer() {
@Override
public Completable apply(Completable v) {
throw new TestException("Forced failure");
}
});
fail("Should have thrown!");
} catch (TestException ex) {
assertEquals("Forced failure", ex.getMessage());
}
}
// Test demos for signature generics in compose() methods. Just needs to compile.
@Test
public void observableGenericsSignatureTest() {
A<String, Integer> a = new A<String, Integer>() { };
Observable.just(a).compose(TransformerTest.<String>testObservableTransformerCreator());
}
@Test
public void singleGenericsSignatureTest() {
A<String, Integer> a = new A<String, Integer>() { };
Single.just(a).compose(TransformerTest.<String>testSingleTransformerCreator());
}
@Test
public void maybeGenericsSignatureTest() {
A<String, Integer> a = new A<String, Integer>() { };
Maybe.just(a).compose(TransformerTest.<String>testMaybeTransformerCreator());
}
@Test
public void flowableGenericsSignatureTest() {
A<String, Integer> a = new A<String, Integer>() { };
Flowable.just(a).compose(TransformerTest.<String>testFlowableTransformerCreator());
}
interface A<T, R> { }
interface B<T> { }
private static <T> ObservableTransformer<A<T, ?>, B<T>> testObservableTransformerCreator() {
return new ObservableTransformer<A<T, ?>, B<T>>() {
@Override
public ObservableSource<B<T>> apply(Observable<A<T, ?>> a) {
return Observable.empty();
}
};
}
private static <T> SingleTransformer<A<T, ?>, B<T>> testSingleTransformerCreator() {
return new SingleTransformer<A<T, ?>, B<T>>() {
@Override
public SingleSource<B<T>> apply(Single<A<T, ?>> a) {
return Single.never();
}
};
}
private static <T> MaybeTransformer<A<T, ?>, B<T>> testMaybeTransformerCreator() {
return new MaybeTransformer<A<T, ?>, B<T>>() {
@Override
public MaybeSource<B<T>> apply(Maybe<A<T, ?>> a) {
return Maybe.empty();
}
};
}
private static <T> FlowableTransformer<A<T, ?>, B<T>> testFlowableTransformerCreator() {
return new FlowableTransformer<A<T, ?>, B<T>>() {
@Override
public Publisher<B<T>> apply(Flowable<A<T, ?>> a) {
return Flowable.empty();
}
};
}
}