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      1 /*
      2  * Copyright 2018 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 androidx.appcompat.widget;
     18 
     19 import android.content.Context;
     20 import android.support.test.annotation.UiThreadTest;
     21 import android.support.test.filters.SmallTest;
     22 import android.support.test.rule.ActivityTestRule;
     23 import android.support.test.runner.AndroidJUnit4;
     24 import android.text.Editable;
     25 
     26 import androidx.appcompat.app.AppCompatActivity;
     27 
     28 import org.junit.Rule;
     29 import org.junit.Test;
     30 import org.junit.runner.RunWith;
     31 
     32 /**
     33  * Tests for the {@link AppCompatEditText} class.
     34  */
     35 @SmallTest
     36 @RunWith(AndroidJUnit4.class)
     37 public class AppCompatEditTextTest {
     38     @Rule
     39     public final ActivityTestRule<AppCompatActivity> mActivityTestRule =
     40             new ActivityTestRule<>(AppCompatActivity.class);
     41 
     42     @Test
     43     @UiThreadTest
     44     public void testGetTextNonEditable() {
     45         // This subclass calls getText before the object is fully constructed. This should not cause
     46         // a null pointer exception.
     47         GetTextEditText editText = new GetTextEditText(mActivityTestRule.getActivity());
     48     }
     49 
     50     private class GetTextEditText extends AppCompatEditText {
     51 
     52         GetTextEditText(Context context) {
     53             super(context);
     54         }
     55 
     56         @Override
     57         public void setText(CharSequence text, BufferType type) {
     58             Editable currentText = getText();
     59             super.setText(text, type);
     60         }
     61     }
     62 
     63     @Test
     64     @UiThreadTest
     65     public void testGetTextBeforeConstructor() {
     66         // This subclass calls getText before the TextView constructor. This should not cause
     67         // a null pointer exception.
     68         GetTextEditText2 editText = new GetTextEditText2(mActivityTestRule.getActivity());
     69     }
     70 
     71     private class GetTextEditText2 extends AppCompatEditText {
     72 
     73         GetTextEditText2(Context context) {
     74             super(context);
     75         }
     76 
     77         @Override
     78         public void setOverScrollMode(int overScrollMode) {
     79             // This method is called by the View constructor before the TextView/EditText
     80             // constructors.
     81             Editable text = getText();
     82         }
     83     }
     84 }
     85