/* * Copyright 2016 Manas Chaudhari * * 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 com.manaschaudhari.android_mvvm; import android.databinding.ObservableField; import org.junit.Before; import org.junit.Test; import io.reactivex.Observable; import io.reactivex.observers.TestObserver; import static com.manaschaudhari.android_mvvm.FieldUtils.toObservable; public class FieldUtilsTest { private static final int INITIAL_VALUE = 4; private Observable<Integer> sut; private ObservableField<Integer> observableField; private TestObserver<Integer> testObserver; @Before public void setUp() throws Exception { observableField = new ObservableField<>(INITIAL_VALUE); sut = toObservable(observableField); testObserver = new TestObserver<>(); } @Test public void emitsInitialValue() throws Exception { sut.subscribe(testObserver); testObserver.assertValues(INITIAL_VALUE); } @Test public void doesNotEmitInitialNull() throws Exception { testObserver = toObservable(new ObservableField<>((Integer) null)).test(); testObserver.assertNoValues() .assertNoErrors(); } @Test public void emitsUpdates() throws Exception { sut.subscribe(testObserver); observableField.set(3); testObserver.assertValues(INITIAL_VALUE, 3); } }