/**
* Copyright 2014 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 rx.internal.operators;
import static org.mockito.Matchers.any;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import rx.Observable;
import rx.Observer;
import rx.functions.Func0;
import rx.functions.Func1;
import rx.internal.util.UtilityFunctions;
public class OperatorToMapTest {
@Mock
Observer<Object> objectObserver;
@Before
public void before() {
MockitoAnnotations.initMocks(this);
}
Func1<String, Integer> lengthFunc = new Func1<String, Integer>() {
@Override
public Integer call(String t1) {
return t1.length();
}
};
Func1<String, String> duplicate = new Func1<String, String>() {
@Override
public String call(String t1) {
return t1 + t1;
}
};
@Test
public void testToMap() {
Observable<String> source = Observable.just("a", "bb", "ccc", "dddd");
Observable<Map<Integer, String>> mapped = source.toMap(lengthFunc);
Map<Integer, String> expected = new HashMap<Integer, String>();
expected.put(1, "a");
expected.put(2, "bb");
expected.put(3, "ccc");
expected.put(4, "dddd");
mapped.subscribe(objectObserver);
verify(objectObserver, never()).onError(any(Throwable.class));
verify(objectObserver, times(1)).onNext(expected);
verify(objectObserver, times(1)).onCompleted();
}
@Test
public void testToMapWithValueSelector() {
Observable<String> source = Observable.just("a", "bb", "ccc", "dddd");
Observable<Map<Integer, String>> mapped = source.toMap(lengthFunc, duplicate);
Map<Integer, String> expected = new HashMap<Integer, String>();
expected.put(1, "aa");
expected.put(2, "bbbb");
expected.put(3, "cccccc");
expected.put(4, "dddddddd");
mapped.subscribe(objectObserver);
verify(objectObserver, never()).onError(any(Throwable.class));
verify(objectObserver, times(1)).onNext(expected);
verify(objectObserver, times(1)).onCompleted();
}
@Test
public void testToMapWithError() {
Observable<String> source = Observable.just("a", "bb", "ccc", "dddd");
Func1<String, Integer> lengthFuncErr = new Func1<String, Integer>() {
@Override
public Integer call(String t1) {
if ("bb".equals(t1)) {
throw new RuntimeException("Forced Failure");
}
return t1.length();
}
};
Observable<Map<Integer, String>> mapped = source.toMap(lengthFuncErr);
Map<Integer, String> expected = new HashMap<Integer, String>();
expected.put(1, "a");
expected.put(2, "bb");
expected.put(3, "ccc");
expected.put(4, "dddd");
mapped.subscribe(objectObserver);
verify(objectObserver, never()).onNext(expected);
verify(objectObserver, never()).onCompleted();
verify(objectObserver, times(1)).onError(any(Throwable.class));
}
@Test
public void testToMapWithErrorInValueSelector() {
Observable<String> source = Observable.just("a", "bb", "ccc", "dddd");
Func1<String, String> duplicateErr = new Func1<String, String>() {
@Override
public String call(String t1) {
if ("bb".equals(t1)) {
throw new RuntimeException("Forced failure");
}
return t1 + t1;
}
};
Observable<Map<Integer, String>> mapped = source.toMap(lengthFunc, duplicateErr);
Map<Integer, String> expected = new HashMap<Integer, String>();
expected.put(1, "aa");
expected.put(2, "bbbb");
expected.put(3, "cccccc");
expected.put(4, "dddddddd");
mapped.subscribe(objectObserver);
verify(objectObserver, never()).onNext(expected);
verify(objectObserver, never()).onCompleted();
verify(objectObserver, times(1)).onError(any(Throwable.class));
}
@Test
public void testToMapWithFactory() {
Observable<String> source = Observable.just("a", "bb", "ccc", "dddd");
Func0<Map<Integer, String>> mapFactory = new Func0<Map<Integer, String>>() {
@Override
public Map<Integer, String> call() {
return new LinkedHashMap<Integer, String>() {
/** */
private static final long serialVersionUID = -3296811238780863394L;
@Override
protected boolean removeEldestEntry(Map.Entry<Integer, String> eldest) {
return size() > 3;
}
};
}
};
Func1<String, Integer> lengthFunc = new Func1<String, Integer>() {
@Override
public Integer call(String t1) {
return t1.length();
}
};
Observable<Map<Integer, String>> mapped = source.toMap(lengthFunc, UtilityFunctions.<String>identity(), mapFactory);
Map<Integer, String> expected = new LinkedHashMap<Integer, String>();
expected.put(2, "bb");
expected.put(3, "ccc");
expected.put(4, "dddd");
mapped.subscribe(objectObserver);
verify(objectObserver, never()).onError(any(Throwable.class));
verify(objectObserver, times(1)).onNext(expected);
verify(objectObserver, times(1)).onCompleted();
}
@Test
public void testToMapWithErrorThrowingFactory() {
Observable<String> source = Observable.just("a", "bb", "ccc", "dddd");
Func0<Map<Integer, String>> mapFactory = new Func0<Map<Integer, String>>() {
@Override
public Map<Integer, String> call() {
throw new RuntimeException("Forced failure");
}
};
Func1<String, Integer> lengthFunc = new Func1<String, Integer>() {
@Override
public Integer call(String t1) {
return t1.length();
}
};
Observable<Map<Integer, String>> mapped = source.toMap(lengthFunc, UtilityFunctions.<String>identity(), mapFactory);
Map<Integer, String> expected = new LinkedHashMap<Integer, String>();
expected.put(2, "bb");
expected.put(3, "ccc");
expected.put(4, "dddd");
mapped.subscribe(objectObserver);
verify(objectObserver, never()).onNext(expected);
verify(objectObserver, never()).onCompleted();
verify(objectObserver, times(1)).onError(any(Throwable.class));
}
}