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ObservableDoOnTest.java
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57 lines (46 loc) · 1.73 KB
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/**
* Copyright 2015 Netflix, Inc.
*
* 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 static org.junit.Assert.*;
import java.util.concurrent.atomic.*;
import org.junit.Test;
public class ObservableDoOnTest {
@Test
public void testDoOnEach() {
final AtomicReference<String> r = new AtomicReference<>();
String output = Observable.just("one").doOnNext(r::set).toBlocking().single();
assertEquals("one", output);
assertEquals("one", r.get());
}
@Test
public void testDoOnError() {
final AtomicReference<Throwable> r = new AtomicReference<>();
Throwable t = null;
try {
Observable.<String> error(new RuntimeException("an error"))
.doOnError(r::set).toBlocking().single();
fail("expected exception, not a return value");
} catch (Throwable e) {
t = e;
}
assertNotNull(t);
assertEquals(t, r.get());
}
@Test
public void testDoOnCompleted() {
final AtomicBoolean r = new AtomicBoolean();
String output = Observable.just("one").doOnComplete(() -> r.set(true)).toBlocking().single();
assertEquals("one", output);
assertTrue(r.get());
}
}