1 /* 2 * Copyright (C) 2008 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.widget.cts; 18 19 import android.content.Context; 20 import android.support.test.InstrumentationRegistry; 21 import android.support.test.filters.SmallTest; 22 import android.support.test.runner.AndroidJUnit4; 23 import android.util.AttributeSet; 24 import android.util.Xml; 25 import android.widget.Button; 26 27 import org.junit.Test; 28 import org.junit.runner.RunWith; 29 import org.xmlpull.v1.XmlPullParser; 30 31 @SmallTest 32 @RunWith(AndroidJUnit4.class) 33 public class ButtonTest { 34 @Test 35 public void testConstructor() { 36 Context context = InstrumentationRegistry.getTargetContext(); 37 XmlPullParser parser = context.getResources().getXml(R.layout.togglebutton_layout); 38 AttributeSet attrs = Xml.asAttributeSet(parser); 39 40 new Button(context, attrs, 0); 41 new Button(context, attrs); 42 new Button(context); 43 } 44 45 @Test(expected=NullPointerException.class) 46 public void testConstructorWithNullContext1() { 47 new Button(null); 48 } 49 50 @Test(expected=NullPointerException.class) 51 public void testConstructorWithNullContext2() { 52 new Button(null, null); 53 } 54 55 @Test(expected=NullPointerException.class) 56 public void testConstructorWithNullContext3() { 57 new Button(null, null, -1); 58 } 59 } 60
