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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      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 android.databinding.testapp;
     18 
     19 import android.annotation.TargetApi;
     20 import android.databinding.ObservableField;
     21 import android.databinding.ObservableInt;
     22 import android.databinding.testapp.BR;
     23 import android.databinding.testapp.databinding.BindableObservablesBinding;
     24 import android.databinding.testapp.databinding.CallbacksBinding;
     25 import android.databinding.testapp.vo.ViewModel;
     26 import android.os.Build;
     27 import android.support.test.runner.AndroidJUnit4;
     28 import static org.hamcrest.MatcherAssert.assertThat;
     29 import static org.hamcrest.CoreMatchers.*;
     30 import org.junit.Rule;
     31 import org.junit.Test;
     32 import org.junit.runner.RunWith;
     33 
     34 @RunWith(AndroidJUnit4.class)
     35 public class BindableObservablesTest {
     36     @Rule
     37     public DataBindingTestRule<BindableObservablesBinding> mBindingRule = new DataBindingTestRule<>(
     38             R.layout.bindable_observables
     39     );
     40 
     41     @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
     42     @Test
     43     public void publicBinding() {
     44         ViewModel model = new ViewModel();
     45         model.publicObservable.set(40);
     46         BindableObservablesBinding binding = mBindingRule.getBinding();
     47         binding.setModel(model);
     48         mBindingRule.executePending();
     49         assertThat(binding.view1.getMaxLines(), is(40));
     50         model.publicObservable.set(20);
     51         mBindingRule.executePending();
     52         assertThat(binding.view1.getMaxLines(), is(20));
     53     }
     54 
     55     @Test
     56     public void fieldBinding() {
     57         ViewModel model = new ViewModel();
     58         model.getFieldObservable().set("abc");
     59         BindableObservablesBinding binding = mBindingRule.getBinding();
     60         binding.setModel(model);
     61         mBindingRule.executePending();
     62         assertThat(binding.view2.getText().toString(), is("abc"));
     63         model.getFieldObservable().set("def");
     64         mBindingRule.executePending();
     65         assertThat(binding.view2.getText().toString(), is("def"));
     66     }
     67 
     68     @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
     69     @Test
     70     public void methodBinding() {
     71         ViewModel model = new ViewModel();
     72         model.getMethodObservable().set(30);
     73         BindableObservablesBinding binding = mBindingRule.getBinding();
     74         binding.setModel(model);
     75         mBindingRule.executePending();
     76         assertThat(binding.view3.getMaxLines(), is(30));
     77         model.getMethodObservable().set(15);
     78         mBindingRule.executePending();
     79         assertThat(binding.view3.getMaxLines(), is(15));
     80     }
     81 
     82     @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
     83     @Test
     84     public void publicBindingChangeObservable() {
     85         ViewModel model = new ViewModel();
     86         model.publicObservable.set(40);
     87         BindableObservablesBinding binding = mBindingRule.getBinding();
     88         binding.setModel(model);
     89         mBindingRule.executePending();
     90         assertThat(binding.view1.getMaxLines(), is(40));
     91 
     92         model.publicObservable = new ObservableInt(20);
     93 
     94         mBindingRule.executePending();
     95         assertThat(binding.view1.getMaxLines(), is(40));
     96 
     97         model.notifyPropertyChanged(BR.publicObservable);
     98         mBindingRule.executePending();
     99         assertThat(binding.view1.getMaxLines(), is(20));
    100 
    101     }
    102 
    103     @Test
    104     public void fieldBindingChangeObservable() {
    105         ViewModel model = new ViewModel();
    106         model.getFieldObservable().set("abc");
    107         BindableObservablesBinding binding = mBindingRule.getBinding();
    108         binding.setModel(model);
    109         mBindingRule.executePending();
    110         assertThat(binding.view2.getText().toString(), is("abc"));
    111 
    112         model.setFieldObservable(new ObservableField<String>("def"));
    113 
    114         mBindingRule.executePending();
    115         assertThat(binding.view2.getText().toString(), is("abc"));
    116 
    117         model.notifyPropertyChanged(BR.fieldObservable);
    118         mBindingRule.executePending();
    119         assertThat(binding.view2.getText().toString(), is("def"));
    120     }
    121 
    122     @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
    123     @Test
    124     public void methodBindingChangeObservable() {
    125         ViewModel model = new ViewModel();
    126         model.getMethodObservable().set(30);
    127         BindableObservablesBinding binding = mBindingRule.getBinding();
    128         binding.setModel(model);
    129         mBindingRule.executePending();
    130         assertThat(binding.view3.getMaxLines(), is(30));
    131 
    132         model.setMethodObservable(new ObservableInt(15));
    133 
    134         mBindingRule.executePending();
    135         assertThat(binding.view3.getMaxLines(), is(30));
    136 
    137         model.notifyPropertyChanged(BR.methodObservable);
    138         mBindingRule.executePending();
    139         assertThat(binding.view3.getMaxLines(), is(15));
    140     }
    141 }
    142