tests/tests/widget/src/android/widget/cts/RadioGroupTest.java - platform/cts - Git at Google

 /*
  * Copyright (C) 2008 The Android Open Source Project
  *
  * 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 android.widget.cts;

 import com.android.cts.stub.R;


 import org.xmlpull.v1.XmlPullParser;
 import org.xmlpull.v1.XmlPullParserException;

 import android.content.Context;
 import android.test.InstrumentationTestCase;
 import android.util.AttributeSet;
 import android.util.Xml;
 import android.view.Gravity;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.ViewGroup.OnHierarchyChangeListener;
 import android.widget.LinearLayout;
 import android.widget.RadioButton;
 import android.widget.RadioGroup;
 import android.widget.RelativeLayout;
 import android.widget.RadioGroup.LayoutParams;
 import android.widget.RadioGroup.OnCheckedChangeListener;

 import java.io.IOException;
 import java.util.Vector;

 /**
  * Test {@link RadioGroup}.
  */
 public class RadioGroupTest extends InstrumentationTestCase {
     private static final int BUTTON_ID_0 = 0;

     private static final int BUTTON_ID_1 = 1;

     private static final int BUTTON_ID_2 = 2;

     private static final int BUTTON_ID_3 = 3;

     /** the IDs of the buttons inside the group are 0, 1, 2, 3. */
     private RadioGroup mDefaultRadioGroup;

     private Context mContext;

     @Override
     protected void setUp() throws Exception {
         super.setUp();
         mContext = getInstrumentation().getTargetContext();
         // the IDs of the buttons inside the group are 0, 1, 2, 3
         mDefaultRadioGroup = createDefaultRadioGroup();
     }

     public void testConstructors() {
         new RadioGroup(mContext);

         AttributeSet attrs = getAttributeSet(R.layout.radiogroup_1);
         new RadioGroup(mContext, attrs);
         new RadioGroup(mContext, null);
     }

     public void testSetOnHierarchyChangeListener() {
         MockOnHierarchyChangeListener listener = new MockOnHierarchyChangeListener();
         mDefaultRadioGroup.setOnHierarchyChangeListener(listener);

         View button3 = mDefaultRadioGroup.findViewById(BUTTON_ID_3);
         listener.reset();
         mDefaultRadioGroup.removeView(button3);
         assertSame(mDefaultRadioGroup, listener.getOnChildViewRemovedParentParam());
         assertSame(button3, listener.getOnChildViewRemovedChildParam());

         listener.reset();
         mDefaultRadioGroup.addView(button3);
         assertSame(mDefaultRadioGroup, listener.getOnChildViewAddedParentParam());
         assertSame(button3, listener.getOnChildViewAddedChildParam());

         // Set listener to null
         mDefaultRadioGroup.setOnHierarchyChangeListener(null);
         // and no exceptions thrown in the following method calls
         mDefaultRadioGroup.removeView(button3);
         mDefaultRadioGroup.addView(button3);
     }

     public void testInternalPassThroughHierarchyChangeListener() {
         mDefaultRadioGroup = new RadioGroup(mContext);
         RadioButton newButton = new RadioButton(mContext);

         assertEquals(View.NO_ID, newButton.getId());
         mDefaultRadioGroup.addView(newButton, new RadioGroup.LayoutParams(
                 RadioGroup.LayoutParams.WRAP_CONTENT, RadioGroup.LayoutParams.WRAP_CONTENT));
         // aapt-generated IDs have a nonzero high byte; check that the ID generated by
         // RadioGroup falls within a range that will not collide with aapt IDs.
         assertEquals(0, newButton.getId() & 0xFF000000);
     }

     public void testInternalCheckedStateTracker() {
         mDefaultRadioGroup = new RadioGroup(mContext);
         RadioButton newButton = new RadioButton(mContext);
         // inject the tracker to the button when the button is added by
         // CompoundButton#setOnCheckedChangeWidgetListener(OnCheckedChangeListener)
         mDefaultRadioGroup.addView(newButton, new RadioGroup.LayoutParams(
                 RadioGroup.LayoutParams.WRAP_CONTENT, RadioGroup.LayoutParams.WRAP_CONTENT));
         MockOnCheckedChangeListener listener = new MockOnCheckedChangeListener();
         mDefaultRadioGroup.setOnCheckedChangeListener(listener);

         listener.reset();
         newButton.setChecked(true);
         // the tracker informs the checked state change of the button to the group
         assertHasCalledOnCheckedChanged(listener);

         listener.reset();
         // the tracker informs the checked state change of the button to the group
         newButton.setChecked(false);
         assertHasCalledOnCheckedChanged(listener);

         // remove the tracker from the button when the button is removed
         mDefaultRadioGroup.removeView(newButton);
         listener.reset();
         newButton.setChecked(true);
         assertHaveNotCalledOnCheckedChanged(listener);

         listener.reset();
         newButton.setChecked(false);
         assertHaveNotCalledOnCheckedChanged(listener);
     }

     public void testGetCheckedRadioButtonId() {
         assertEquals(-1, mDefaultRadioGroup.getCheckedRadioButtonId());

         mDefaultRadioGroup.check(BUTTON_ID_0);
         assertEquals(BUTTON_ID_0, mDefaultRadioGroup.getCheckedRadioButtonId());

         mDefaultRadioGroup.check(BUTTON_ID_3);
         assertEquals(BUTTON_ID_3, mDefaultRadioGroup.getCheckedRadioButtonId());

         // None of the buttons inside the group has of of the following IDs
         mDefaultRadioGroup.check(4);
         assertEquals(4, mDefaultRadioGroup.getCheckedRadioButtonId());

         mDefaultRadioGroup.check(-1);
         assertEquals(-1, mDefaultRadioGroup.getCheckedRadioButtonId());

         mDefaultRadioGroup.check(-3);
         assertEquals(-3, mDefaultRadioGroup.getCheckedRadioButtonId());
     }

     public void testClearCheck() {
         MockOnCheckedChangeListener listener = new MockOnCheckedChangeListener();
         mDefaultRadioGroup.setOnCheckedChangeListener(listener);

         mDefaultRadioGroup.check(BUTTON_ID_3);
         assertEquals(BUTTON_ID_3, mDefaultRadioGroup.getCheckedRadioButtonId());

         listener.reset();
         mDefaultRadioGroup.clearCheck();
         assertEquals(-1, mDefaultRadioGroup.getCheckedRadioButtonId());
         assertHasCalledOnCheckedChanged(listener);
         // uncheck the original button
         assertOnCheckedChangedParams(listener, 0, mDefaultRadioGroup, BUTTON_ID_3);

         // None of the buttons inside the group has of of the following IDs
         mDefaultRadioGroup.check(4);
         assertEquals(4, mDefaultRadioGroup.getCheckedRadioButtonId());

         listener.reset();
         mDefaultRadioGroup.clearCheck();
         assertEquals(-1, mDefaultRadioGroup.getCheckedRadioButtonId());
         // why the method is called while none of the button is checked or unchecked?
         assertHasCalledOnCheckedChanged(listener);
         assertOnCheckedChangedParams(listener, 0, mDefaultRadioGroup, -1);

         mDefaultRadioGroup.check(-1);
         assertEquals(-1, mDefaultRadioGroup.getCheckedRadioButtonId());

         listener.reset();
         mDefaultRadioGroup.clearCheck();
         assertEquals(-1, mDefaultRadioGroup.getCheckedRadioButtonId());
         // why the method is called while none of the button is checked or unchecked?
         assertHasCalledOnCheckedChanged(listener);
         assertOnCheckedChangedParams(listener, 0, mDefaultRadioGroup, -1);
     }

     public void testCheck() {
         MockOnCheckedChangeListener listener = new MockOnCheckedChangeListener();
         mDefaultRadioGroup.setOnCheckedChangeListener(listener);
         assertEquals(-1, mDefaultRadioGroup.getCheckedRadioButtonId());

         listener.reset();
         mDefaultRadioGroup.check(BUTTON_ID_0);
         assertHasCalledOnCheckedChanged(listener);
         assertOnCheckedChangedParams(listener, 0, mDefaultRadioGroup, BUTTON_ID_0);

         listener.reset();
         mDefaultRadioGroup.check(BUTTON_ID_1);
         assertHasCalledOnCheckedChanged(listener);
         // uncheck the original button
         assertOnCheckedChangedParams(listener, 0, mDefaultRadioGroup, BUTTON_ID_0);
         // check the new button
         assertOnCheckedChangedParams(listener, 1, mDefaultRadioGroup, BUTTON_ID_1);

         listener.reset();
         mDefaultRadioGroup.check(-1);
         assertHasCalledOnCheckedChanged(listener);
         // uncheck the original button
         assertOnCheckedChangedParams(listener, 0, mDefaultRadioGroup, BUTTON_ID_1);
         assertOnCheckedChangedParams(listener, 1, mDefaultRadioGroup, -1);

         // None of the buttons inside the group has of of the following IDs
         listener.reset();
         mDefaultRadioGroup.check(-1);
         // why the method is called while none of the inside buttons has been changed
         assertHasCalledOnCheckedChanged(listener);
         assertOnCheckedChangedParams(listener, 0, mDefaultRadioGroup, -1);

         listener.reset();
         mDefaultRadioGroup.check(4);
         // why the method is called while none of the inside buttons has been changed
         assertHasCalledOnCheckedChanged(listener);
         assertOnCheckedChangedParams(listener, 0, mDefaultRadioGroup, 4);

         // Set listener to null
         mDefaultRadioGroup.setOnCheckedChangeListener(null);
         // no exceptions thrown during the following method
         mDefaultRadioGroup.check(0);
     }

     public void testSetOnCheckedChangeListener() {
         MockOnCheckedChangeListener listener = new MockOnCheckedChangeListener();
         mDefaultRadioGroup.setOnCheckedChangeListener(listener);

         listener.reset();
         mDefaultRadioGroup.check(BUTTON_ID_0);
         assertHasCalledOnCheckedChanged(listener);

         // does not call the method if the button the id is already checked
         listener.reset();
         mDefaultRadioGroup.check(BUTTON_ID_0);
         assertHaveNotCalledOnCheckedChanged(listener);

         // call the method if none of the buttons inside the group has the id
         listener.reset();
         mDefaultRadioGroup.check(-3);
         assertHasCalledOnCheckedChanged(listener);

         // does not call the method if the button the id is already checked
         // and none of the buttons inside the group has the id
         listener.reset();
         mDefaultRadioGroup.check(-3);
         assertHaveNotCalledOnCheckedChanged(listener);

         // always call the method if the checked id is -1
         listener.reset();
         mDefaultRadioGroup.clearCheck();
         assertHasCalledOnCheckedChanged(listener);

         listener.reset();
         mDefaultRadioGroup.check(-1);
         assertHasCalledOnCheckedChanged(listener);

         // Set listener to null
         mDefaultRadioGroup.setOnCheckedChangeListener(null);
         // no exceptions thrown during the following method
         mDefaultRadioGroup.check(0);
     }

     public void testGenerateLayoutParams() {
         mDefaultRadioGroup = new RadioGroup(mContext);
         RadioGroup.LayoutParams layoutParams =
             mDefaultRadioGroup.generateLayoutParams((AttributeSet) null);
         assertNotNull(layoutParams);
         // default values
         assertEquals(0.0, layoutParams.weight, 0);
         assertEquals(-1, layoutParams.gravity);
         assertEquals(0, layoutParams.leftMargin);
         assertEquals(0, layoutParams.topMargin);
         assertEquals(0, layoutParams.rightMargin);
         assertEquals(0, layoutParams.bottomMargin);
         assertEquals(LayoutParams.WRAP_CONTENT, layoutParams.width);
         assertEquals(LayoutParams.WRAP_CONTENT, layoutParams.height);

         AttributeSet attrs = getAttributeSet(R.layout.radiogroup_1);
         layoutParams = mDefaultRadioGroup.generateLayoutParams(attrs);
         // values from layout
         assertNotNull(layoutParams);
         assertEquals(0.5, layoutParams.weight, 0);
         assertEquals(Gravity.BOTTOM, layoutParams.gravity);
         assertEquals(5, layoutParams.leftMargin);
         assertEquals(5, layoutParams.topMargin);
         assertEquals(5, layoutParams.rightMargin);
         assertEquals(5, layoutParams.bottomMargin);
         assertEquals(LayoutParams.MATCH_PARENT, layoutParams.width);
         assertEquals(LayoutParams.MATCH_PARENT, layoutParams.height);
     }

     public void testCheckLayoutParams() {
         MockRadioGroup mRadioGroupWrapper = new MockRadioGroup(mContext);

         assertFalse(mRadioGroupWrapper.checkLayoutParams(null));

         RelativeLayout.LayoutParams relativeParams = new RelativeLayout.LayoutParams(
                 RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.MATCH_PARENT);
         assertFalse(mRadioGroupWrapper.checkLayoutParams(relativeParams));

         LinearLayout.LayoutParams linearParams = new LinearLayout.LayoutParams(
                 LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT);
         assertFalse(mRadioGroupWrapper.checkLayoutParams(linearParams));

         RadioGroup.LayoutParams radioParams = new RadioGroup.LayoutParams(
                 RadioGroup.LayoutParams.MATCH_PARENT, RadioGroup.LayoutParams.MATCH_PARENT);
         assertTrue(mRadioGroupWrapper.checkLayoutParams(radioParams));
     }

     public void testGenerateDefaultLayoutParams() {
         MockRadioGroup radioGroupWrapper = new MockRadioGroup(mContext);
         LinearLayout.LayoutParams p = radioGroupWrapper.generateDefaultLayoutParams();

         assertTrue(p instanceof RadioGroup.LayoutParams);
         assertEquals(RadioGroup.LayoutParams.WRAP_CONTENT, p.width);
         assertEquals(RadioGroup.LayoutParams.WRAP_CONTENT, p.height);
     }

     public void testOnFinishInflate() {
         MockRadioGroup radioGroup = new MockRadioGroup(mContext);
         int checkId = 100;
         radioGroup.check(checkId);
         // the button is added after the check(int)method
         // and it not checked though it has exactly the checkId
         RadioButton button = new RadioButton(mContext);
         button.setId(checkId);
         radioGroup.addView(button, new LinearLayout.LayoutParams(
                 LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT));
         MockOnCheckedChangeListener listener = new MockOnCheckedChangeListener();
         radioGroup.setOnCheckedChangeListener(listener);

         // check the button which id is CheckedRadioButtonId
         listener.reset();
         assertFalse(button.isChecked());
         radioGroup.onFinishInflate();
         assertTrue(button.isChecked());
         assertHasCalledOnCheckedChanged(listener);
         assertEquals(checkId, radioGroup.getCheckedRadioButtonId());

         radioGroup = new MockRadioGroup(mContext);
         button = new RadioButton(mContext);
         radioGroup.addView(button, new LinearLayout.LayoutParams(
                 LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT));
         listener = new MockOnCheckedChangeListener();
         radioGroup.setOnCheckedChangeListener(listener);

         // nothing happens if checkedRadioButtonId is -1
         assertEquals(-1, radioGroup.getCheckedRadioButtonId());
         assertFalse(button.isChecked());
         listener.reset();
         radioGroup.onFinishInflate();
         assertHaveNotCalledOnCheckedChanged(listener);
         assertEquals(-1, radioGroup.getCheckedRadioButtonId());
         assertFalse(button.isChecked());
     }

     public void testAddView() {
         mDefaultRadioGroup.check(BUTTON_ID_0);
         assertEquals(BUTTON_ID_0, mDefaultRadioGroup.getCheckedRadioButtonId());
         assertEquals(4, mDefaultRadioGroup.getChildCount());

         int id = BUTTON_ID_3 + 10;
         RadioButton choice4 = new RadioButton(mContext);
         choice4.setText("choice4");
         choice4.setId(id);
         choice4.setChecked(true);
         mDefaultRadioGroup.addView(choice4, 4, new ViewGroup.LayoutParams(100, 200));
         assertEquals(id, mDefaultRadioGroup.getCheckedRadioButtonId());
         assertEquals(5, mDefaultRadioGroup.getChildCount());
     }

     /**
      * Initialises the group with 4 RadioButtons which IDs are
      * BUTTON_ID_0, BUTTON_ID_1, BUTTON_ID_2, BUTTON_ID_3.
      */
     private RadioGroup createDefaultRadioGroup() {
         RadioGroup radioGroup = new RadioGroup(mContext);
         RadioGroup.LayoutParams params = new RadioGroup.LayoutParams(
                 RadioGroup.LayoutParams.WRAP_CONTENT, RadioGroup.LayoutParams.WRAP_CONTENT);

         RadioButton choice0 = new RadioButton(mContext);
         choice0.setText("choice0");
         choice0.setId(BUTTON_ID_0);
         radioGroup.addView(choice0, params);

         RadioButton choice1 = new RadioButton(mContext);
         choice1.setText("choice1");
         choice1.setId(BUTTON_ID_1);
         radioGroup.addView(choice1, params);

         RadioButton choice2 = new RadioButton(mContext);
         choice2.setText("choice2");
         choice2.setId(BUTTON_ID_2);
         radioGroup.addView(choice2, params);

         RadioButton choice3 = new RadioButton(mContext);
         choice3.setText("choice3");
         choice3.setId(BUTTON_ID_3);
         radioGroup.addView(choice3, params);

         return radioGroup;
     }

     private AttributeSet getAttributeSet(int resId) {
         XmlPullParser parser = mContext.getResources().getLayout(resId);
         assertNotNull(parser);
         int type = 0;
         try {
             while ((type = parser.next()) != XmlPullParser.START_TAG
                     && type != XmlPullParser.END_DOCUMENT) {
                 // Empty
             }
         } catch (XmlPullParserException e) {
             fail(e.getMessage());
         } catch (IOException e) {
             fail(e.getMessage());
         }

         assertEquals("No RadioGroup element found", XmlPullParser.START_TAG, type);
         assertEquals("The first element is not RadioGroup", "RadioGroup", parser.getName());
         return Xml.asAttributeSet(parser);
     }

     private void assertHaveNotCalledOnCheckedChanged(MockOnCheckedChangeListener listener) {
         assertEquals(0, listener.getOnCheckedChangedGroupParams().size());
         assertEquals(0, listener.getOnCheckedChangedCheckedIdParams().size());
     }

     private void assertHasCalledOnCheckedChanged(MockOnCheckedChangeListener listener) {
         assertTrue(listener.getOnCheckedChangedGroupParams().size() > 0);
         assertTrue(listener.getOnCheckedChangedCheckedIdParams().size() > 0);
     }

     private void assertOnCheckedChangedParams(MockOnCheckedChangeListener listener, int time,
             RadioGroup paramGroup, int paramCheckedId) {
         assertSame(paramGroup,
                 listener.getOnCheckedChangedGroupParams().get(time));
         assertEquals(paramCheckedId, listener
                 .getOnCheckedChangedCheckedIdParams().get(time).intValue());
     }

     private class MockOnCheckedChangeListener implements OnCheckedChangeListener {
         private Vector<RadioGroup> mOnCheckedChangedGroupParams = new Vector<RadioGroup>();

         private Vector<Integer> mOnCheckedChangedCheckedIdParams = new Vector<Integer>();

         public Vector<RadioGroup> getOnCheckedChangedGroupParams() {
             return mOnCheckedChangedGroupParams;
         }

         public Vector<Integer> getOnCheckedChangedCheckedIdParams() {
             return mOnCheckedChangedCheckedIdParams;
         }

         public void reset() {
             mOnCheckedChangedGroupParams.clear();
             mOnCheckedChangedCheckedIdParams.clear();
         }

         public void onCheckedChanged(RadioGroup group, int checkedId) {
             mOnCheckedChangedGroupParams.add(group);
             mOnCheckedChangedCheckedIdParams.add(checkedId);
         }
     }

     private class MockOnHierarchyChangeListener implements OnHierarchyChangeListener {
         private View mOnChildViewAddedParentParam;

         private View mOnChildViewAddedChildParam;

         private View mOnChildViewRemovedParentParam;

         private View mOnChildViewRemovedChildParam;

         public View getOnChildViewAddedParentParam() {
             return mOnChildViewAddedParentParam;
         }

         public View getOnChildViewAddedChildParam() {
             return mOnChildViewAddedChildParam;
         }

         public View getOnChildViewRemovedParentParam() {
             return mOnChildViewRemovedParentParam;
         }

         public View getOnChildViewRemovedChildParam() {
             return mOnChildViewRemovedChildParam;
         }

         public void reset() {
             mOnChildViewAddedParentParam = null;
             mOnChildViewAddedChildParam = null;
             mOnChildViewRemovedParentParam = null;
             mOnChildViewRemovedChildParam = null;
         }

         public void onChildViewAdded(View parent, View child) {
             mOnChildViewAddedParentParam = parent;
             mOnChildViewAddedChildParam = child;
         }

         public void onChildViewRemoved(View parent, View child) {
             mOnChildViewRemovedParentParam = parent;
             mOnChildViewRemovedChildParam = child;
         }
     }

     private class MockRadioGroup extends RadioGroup {
         public MockRadioGroup(Context context) {
             super(context);
         }

         @Override
         protected boolean checkLayoutParams(ViewGroup.LayoutParams p) {
             return super.checkLayoutParams(p);
         }

         @Override
         protected android.widget.LinearLayout.LayoutParams generateDefaultLayoutParams() {
             return super.generateDefaultLayoutParams();
         }

         @Override
         protected void onFinishInflate() {
             super.onFinishInflate();
         }
     }
 }
	/*
	* Copyright (C) 2008 The Android Open Source Project
	*
	* 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 android.widget.cts;

	import com.android.cts.stub.R;


	import org.xmlpull.v1.XmlPullParser;
	import org.xmlpull.v1.XmlPullParserException;

	import android.content.Context;
	import android.test.InstrumentationTestCase;
	import android.util.AttributeSet;
	import android.util.Xml;
	import android.view.Gravity;
	import android.view.View;
	import android.view.ViewGroup;
	import android.view.ViewGroup.OnHierarchyChangeListener;
	import android.widget.LinearLayout;
	import android.widget.RadioButton;
	import android.widget.RadioGroup;
	import android.widget.RelativeLayout;
	import android.widget.RadioGroup.LayoutParams;
	import android.widget.RadioGroup.OnCheckedChangeListener;

	import java.io.IOException;
	import java.util.Vector;

	/**
	* Test {@link RadioGroup}.
	*/
	public class RadioGroupTest extends InstrumentationTestCase {
	private static final int BUTTON_ID_0 = 0;

	private static final int BUTTON_ID_1 = 1;

	private static final int BUTTON_ID_2 = 2;

	private static final int BUTTON_ID_3 = 3;

	/** the IDs of the buttons inside the group are 0, 1, 2, 3. */
	private RadioGroup mDefaultRadioGroup;

	private Context mContext;

	@Override
	protected void setUp() throws Exception {
	super.setUp();
	mContext = getInstrumentation().getTargetContext();
	// the IDs of the buttons inside the group are 0, 1, 2, 3
	mDefaultRadioGroup = createDefaultRadioGroup();
	}

	public void testConstructors() {
	new RadioGroup(mContext);

	AttributeSet attrs = getAttributeSet(R.layout.radiogroup_1);
	new RadioGroup(mContext, attrs);
	new RadioGroup(mContext, null);
	}

	public void testSetOnHierarchyChangeListener() {
	MockOnHierarchyChangeListener listener = new MockOnHierarchyChangeListener();
	mDefaultRadioGroup.setOnHierarchyChangeListener(listener);

	View button3 = mDefaultRadioGroup.findViewById(BUTTON_ID_3);
	listener.reset();
	mDefaultRadioGroup.removeView(button3);
	assertSame(mDefaultRadioGroup, listener.getOnChildViewRemovedParentParam());
	assertSame(button3, listener.getOnChildViewRemovedChildParam());

	listener.reset();
	mDefaultRadioGroup.addView(button3);
	assertSame(mDefaultRadioGroup, listener.getOnChildViewAddedParentParam());
	assertSame(button3, listener.getOnChildViewAddedChildParam());

	// Set listener to null
	mDefaultRadioGroup.setOnHierarchyChangeListener(null);
	// and no exceptions thrown in the following method calls
	mDefaultRadioGroup.removeView(button3);
	mDefaultRadioGroup.addView(button3);
	}

	public void testInternalPassThroughHierarchyChangeListener() {
	mDefaultRadioGroup = new RadioGroup(mContext);
	RadioButton newButton = new RadioButton(mContext);

	assertEquals(View.NO_ID, newButton.getId());
	mDefaultRadioGroup.addView(newButton, new RadioGroup.LayoutParams(
	RadioGroup.LayoutParams.WRAP_CONTENT, RadioGroup.LayoutParams.WRAP_CONTENT));
	// aapt-generated IDs have a nonzero high byte; check that the ID generated by
	// RadioGroup falls within a range that will not collide with aapt IDs.
	assertEquals(0, newButton.getId() & 0xFF000000);
	}

	public void testInternalCheckedStateTracker() {
	mDefaultRadioGroup = new RadioGroup(mContext);
	RadioButton newButton = new RadioButton(mContext);
	// inject the tracker to the button when the button is added by
	// CompoundButton#setOnCheckedChangeWidgetListener(OnCheckedChangeListener)
	mDefaultRadioGroup.addView(newButton, new RadioGroup.LayoutParams(
	RadioGroup.LayoutParams.WRAP_CONTENT, RadioGroup.LayoutParams.WRAP_CONTENT));
	MockOnCheckedChangeListener listener = new MockOnCheckedChangeListener();
	mDefaultRadioGroup.setOnCheckedChangeListener(listener);

	listener.reset();
	newButton.setChecked(true);
	// the tracker informs the checked state change of the button to the group
	assertHasCalledOnCheckedChanged(listener);

	listener.reset();
	// the tracker informs the checked state change of the button to the group
	newButton.setChecked(false);
	assertHasCalledOnCheckedChanged(listener);

	// remove the tracker from the button when the button is removed
	mDefaultRadioGroup.removeView(newButton);
	listener.reset();
	newButton.setChecked(true);
	assertHaveNotCalledOnCheckedChanged(listener);

	listener.reset();
	newButton.setChecked(false);
	assertHaveNotCalledOnCheckedChanged(listener);
	}

	public void testGetCheckedRadioButtonId() {
	assertEquals(-1, mDefaultRadioGroup.getCheckedRadioButtonId());

	mDefaultRadioGroup.check(BUTTON_ID_0);
	assertEquals(BUTTON_ID_0, mDefaultRadioGroup.getCheckedRadioButtonId());

	mDefaultRadioGroup.check(BUTTON_ID_3);
	assertEquals(BUTTON_ID_3, mDefaultRadioGroup.getCheckedRadioButtonId());

	// None of the buttons inside the group has of of the following IDs
	mDefaultRadioGroup.check(4);
	assertEquals(4, mDefaultRadioGroup.getCheckedRadioButtonId());

	mDefaultRadioGroup.check(-1);
	assertEquals(-1, mDefaultRadioGroup.getCheckedRadioButtonId());

	mDefaultRadioGroup.check(-3);
	assertEquals(-3, mDefaultRadioGroup.getCheckedRadioButtonId());
	}

	public void testClearCheck() {
	MockOnCheckedChangeListener listener = new MockOnCheckedChangeListener();
	mDefaultRadioGroup.setOnCheckedChangeListener(listener);

	mDefaultRadioGroup.check(BUTTON_ID_3);
	assertEquals(BUTTON_ID_3, mDefaultRadioGroup.getCheckedRadioButtonId());

	listener.reset();
	mDefaultRadioGroup.clearCheck();
	assertEquals(-1, mDefaultRadioGroup.getCheckedRadioButtonId());
	assertHasCalledOnCheckedChanged(listener);
	// uncheck the original button
	assertOnCheckedChangedParams(listener, 0, mDefaultRadioGroup, BUTTON_ID_3);

	// None of the buttons inside the group has of of the following IDs
	mDefaultRadioGroup.check(4);
	assertEquals(4, mDefaultRadioGroup.getCheckedRadioButtonId());

	listener.reset();
	mDefaultRadioGroup.clearCheck();
	assertEquals(-1, mDefaultRadioGroup.getCheckedRadioButtonId());
	// why the method is called while none of the button is checked or unchecked?
	assertHasCalledOnCheckedChanged(listener);
	assertOnCheckedChangedParams(listener, 0, mDefaultRadioGroup, -1);

	mDefaultRadioGroup.check(-1);
	assertEquals(-1, mDefaultRadioGroup.getCheckedRadioButtonId());

	listener.reset();
	mDefaultRadioGroup.clearCheck();
	assertEquals(-1, mDefaultRadioGroup.getCheckedRadioButtonId());
	// why the method is called while none of the button is checked or unchecked?
	assertHasCalledOnCheckedChanged(listener);
	assertOnCheckedChangedParams(listener, 0, mDefaultRadioGroup, -1);
	}

	public void testCheck() {
	MockOnCheckedChangeListener listener = new MockOnCheckedChangeListener();
	mDefaultRadioGroup.setOnCheckedChangeListener(listener);
	assertEquals(-1, mDefaultRadioGroup.getCheckedRadioButtonId());

	listener.reset();
	mDefaultRadioGroup.check(BUTTON_ID_0);
	assertHasCalledOnCheckedChanged(listener);
	assertOnCheckedChangedParams(listener, 0, mDefaultRadioGroup, BUTTON_ID_0);

	listener.reset();
	mDefaultRadioGroup.check(BUTTON_ID_1);
	assertHasCalledOnCheckedChanged(listener);
	// uncheck the original button
	assertOnCheckedChangedParams(listener, 0, mDefaultRadioGroup, BUTTON_ID_0);
	// check the new button
	assertOnCheckedChangedParams(listener, 1, mDefaultRadioGroup, BUTTON_ID_1);

	listener.reset();
	mDefaultRadioGroup.check(-1);
	assertHasCalledOnCheckedChanged(listener);
	// uncheck the original button
	assertOnCheckedChangedParams(listener, 0, mDefaultRadioGroup, BUTTON_ID_1);
	assertOnCheckedChangedParams(listener, 1, mDefaultRadioGroup, -1);

	// None of the buttons inside the group has of of the following IDs
	listener.reset();
	mDefaultRadioGroup.check(-1);
	// why the method is called while none of the inside buttons has been changed
	assertHasCalledOnCheckedChanged(listener);
	assertOnCheckedChangedParams(listener, 0, mDefaultRadioGroup, -1);

	listener.reset();
	mDefaultRadioGroup.check(4);
	// why the method is called while none of the inside buttons has been changed
	assertHasCalledOnCheckedChanged(listener);
	assertOnCheckedChangedParams(listener, 0, mDefaultRadioGroup, 4);

	// Set listener to null
	mDefaultRadioGroup.setOnCheckedChangeListener(null);
	// no exceptions thrown during the following method
	mDefaultRadioGroup.check(0);
	}

	public void testSetOnCheckedChangeListener() {
	MockOnCheckedChangeListener listener = new MockOnCheckedChangeListener();
	mDefaultRadioGroup.setOnCheckedChangeListener(listener);

	listener.reset();
	mDefaultRadioGroup.check(BUTTON_ID_0);
	assertHasCalledOnCheckedChanged(listener);

	// does not call the method if the button the id is already checked
	listener.reset();
	mDefaultRadioGroup.check(BUTTON_ID_0);
	assertHaveNotCalledOnCheckedChanged(listener);

	// call the method if none of the buttons inside the group has the id
	listener.reset();
	mDefaultRadioGroup.check(-3);
	assertHasCalledOnCheckedChanged(listener);

	// does not call the method if the button the id is already checked
	// and none of the buttons inside the group has the id
	listener.reset();
	mDefaultRadioGroup.check(-3);
	assertHaveNotCalledOnCheckedChanged(listener);

	// always call the method if the checked id is -1
	listener.reset();
	mDefaultRadioGroup.clearCheck();
	assertHasCalledOnCheckedChanged(listener);

	listener.reset();
	mDefaultRadioGroup.check(-1);
	assertHasCalledOnCheckedChanged(listener);

	// Set listener to null
	mDefaultRadioGroup.setOnCheckedChangeListener(null);
	// no exceptions thrown during the following method
	mDefaultRadioGroup.check(0);
	}

	public void testGenerateLayoutParams() {
	mDefaultRadioGroup = new RadioGroup(mContext);
	RadioGroup.LayoutParams layoutParams =
	mDefaultRadioGroup.generateLayoutParams((AttributeSet) null);
	assertNotNull(layoutParams);
	// default values
	assertEquals(0.0, layoutParams.weight, 0);
	assertEquals(-1, layoutParams.gravity);
	assertEquals(0, layoutParams.leftMargin);
	assertEquals(0, layoutParams.topMargin);
	assertEquals(0, layoutParams.rightMargin);
	assertEquals(0, layoutParams.bottomMargin);
	assertEquals(LayoutParams.WRAP_CONTENT, layoutParams.width);
	assertEquals(LayoutParams.WRAP_CONTENT, layoutParams.height);

	AttributeSet attrs = getAttributeSet(R.layout.radiogroup_1);
	layoutParams = mDefaultRadioGroup.generateLayoutParams(attrs);
	// values from layout
	assertNotNull(layoutParams);
	assertEquals(0.5, layoutParams.weight, 0);
	assertEquals(Gravity.BOTTOM, layoutParams.gravity);
	assertEquals(5, layoutParams.leftMargin);
	assertEquals(5, layoutParams.topMargin);
	assertEquals(5, layoutParams.rightMargin);
	assertEquals(5, layoutParams.bottomMargin);
	assertEquals(LayoutParams.MATCH_PARENT, layoutParams.width);
	assertEquals(LayoutParams.MATCH_PARENT, layoutParams.height);
	}

	public void testCheckLayoutParams() {
	MockRadioGroup mRadioGroupWrapper = new MockRadioGroup(mContext);

	assertFalse(mRadioGroupWrapper.checkLayoutParams(null));

	RelativeLayout.LayoutParams relativeParams = new RelativeLayout.LayoutParams(
	RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.MATCH_PARENT);
	assertFalse(mRadioGroupWrapper.checkLayoutParams(relativeParams));

	LinearLayout.LayoutParams linearParams = new LinearLayout.LayoutParams(
	LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT);
	assertFalse(mRadioGroupWrapper.checkLayoutParams(linearParams));

	RadioGroup.LayoutParams radioParams = new RadioGroup.LayoutParams(
	RadioGroup.LayoutParams.MATCH_PARENT, RadioGroup.LayoutParams.MATCH_PARENT);
	assertTrue(mRadioGroupWrapper.checkLayoutParams(radioParams));
	}

	public void testGenerateDefaultLayoutParams() {
	MockRadioGroup radioGroupWrapper = new MockRadioGroup(mContext);
	LinearLayout.LayoutParams p = radioGroupWrapper.generateDefaultLayoutParams();

	assertTrue(p instanceof RadioGroup.LayoutParams);
	assertEquals(RadioGroup.LayoutParams.WRAP_CONTENT, p.width);
	assertEquals(RadioGroup.LayoutParams.WRAP_CONTENT, p.height);
	}

	public void testOnFinishInflate() {
	MockRadioGroup radioGroup = new MockRadioGroup(mContext);
	int checkId = 100;
	radioGroup.check(checkId);
	// the button is added after the check(int)method
	// and it not checked though it has exactly the checkId
	RadioButton button = new RadioButton(mContext);
	button.setId(checkId);
	radioGroup.addView(button, new LinearLayout.LayoutParams(
	LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT));
	MockOnCheckedChangeListener listener = new MockOnCheckedChangeListener();
	radioGroup.setOnCheckedChangeListener(listener);

	// check the button which id is CheckedRadioButtonId
	listener.reset();
	assertFalse(button.isChecked());
	radioGroup.onFinishInflate();
	assertTrue(button.isChecked());
	assertHasCalledOnCheckedChanged(listener);
	assertEquals(checkId, radioGroup.getCheckedRadioButtonId());

	radioGroup = new MockRadioGroup(mContext);
	button = new RadioButton(mContext);
	radioGroup.addView(button, new LinearLayout.LayoutParams(
	LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT));
	listener = new MockOnCheckedChangeListener();
	radioGroup.setOnCheckedChangeListener(listener);

	// nothing happens if checkedRadioButtonId is -1
	assertEquals(-1, radioGroup.getCheckedRadioButtonId());
	assertFalse(button.isChecked());
	listener.reset();
	radioGroup.onFinishInflate();
	assertHaveNotCalledOnCheckedChanged(listener);
	assertEquals(-1, radioGroup.getCheckedRadioButtonId());
	assertFalse(button.isChecked());
	}

	public void testAddView() {
	mDefaultRadioGroup.check(BUTTON_ID_0);
	assertEquals(BUTTON_ID_0, mDefaultRadioGroup.getCheckedRadioButtonId());
	assertEquals(4, mDefaultRadioGroup.getChildCount());

	int id = BUTTON_ID_3 + 10;
	RadioButton choice4 = new RadioButton(mContext);
	choice4.setText("choice4");
	choice4.setId(id);
	choice4.setChecked(true);
	mDefaultRadioGroup.addView(choice4, 4, new ViewGroup.LayoutParams(100, 200));
	assertEquals(id, mDefaultRadioGroup.getCheckedRadioButtonId());
	assertEquals(5, mDefaultRadioGroup.getChildCount());
	}

	/**
	* Initialises the group with 4 RadioButtons which IDs are
	* BUTTON_ID_0, BUTTON_ID_1, BUTTON_ID_2, BUTTON_ID_3.
	*/
	private RadioGroup createDefaultRadioGroup() {
	RadioGroup radioGroup = new RadioGroup(mContext);
	RadioGroup.LayoutParams params = new RadioGroup.LayoutParams(
	RadioGroup.LayoutParams.WRAP_CONTENT, RadioGroup.LayoutParams.WRAP_CONTENT);

	RadioButton choice0 = new RadioButton(mContext);
	choice0.setText("choice0");
	choice0.setId(BUTTON_ID_0);
	radioGroup.addView(choice0, params);

	RadioButton choice1 = new RadioButton(mContext);
	choice1.setText("choice1");
	choice1.setId(BUTTON_ID_1);
	radioGroup.addView(choice1, params);

	RadioButton choice2 = new RadioButton(mContext);
	choice2.setText("choice2");
	choice2.setId(BUTTON_ID_2);
	radioGroup.addView(choice2, params);

	RadioButton choice3 = new RadioButton(mContext);
	choice3.setText("choice3");
	choice3.setId(BUTTON_ID_3);
	radioGroup.addView(choice3, params);

	return radioGroup;
	}

	private AttributeSet getAttributeSet(int resId) {
	XmlPullParser parser = mContext.getResources().getLayout(resId);
	assertNotNull(parser);
	int type = 0;
	try {
	while ((type = parser.next()) != XmlPullParser.START_TAG
	&& type != XmlPullParser.END_DOCUMENT) {
	// Empty
	}
	} catch (XmlPullParserException e) {
	fail(e.getMessage());
	} catch (IOException e) {
	fail(e.getMessage());
	}

	assertEquals("No RadioGroup element found", XmlPullParser.START_TAG, type);
	assertEquals("The first element is not RadioGroup", "RadioGroup", parser.getName());
	return Xml.asAttributeSet(parser);
	}

	private void assertHaveNotCalledOnCheckedChanged(MockOnCheckedChangeListener listener) {
	assertEquals(0, listener.getOnCheckedChangedGroupParams().size());
	assertEquals(0, listener.getOnCheckedChangedCheckedIdParams().size());
	}

	private void assertHasCalledOnCheckedChanged(MockOnCheckedChangeListener listener) {
	assertTrue(listener.getOnCheckedChangedGroupParams().size() > 0);
	assertTrue(listener.getOnCheckedChangedCheckedIdParams().size() > 0);
	}

	private void assertOnCheckedChangedParams(MockOnCheckedChangeListener listener, int time,
	RadioGroup paramGroup, int paramCheckedId) {
	assertSame(paramGroup,
	listener.getOnCheckedChangedGroupParams().get(time));
	assertEquals(paramCheckedId, listener
	.getOnCheckedChangedCheckedIdParams().get(time).intValue());
	}

	private class MockOnCheckedChangeListener implements OnCheckedChangeListener {
	private Vector<RadioGroup> mOnCheckedChangedGroupParams = new Vector<RadioGroup>();

	private Vector<Integer> mOnCheckedChangedCheckedIdParams = new Vector<Integer>();

	public Vector<RadioGroup> getOnCheckedChangedGroupParams() {
	return mOnCheckedChangedGroupParams;
	}

	public Vector<Integer> getOnCheckedChangedCheckedIdParams() {
	return mOnCheckedChangedCheckedIdParams;
	}

	public void reset() {
	mOnCheckedChangedGroupParams.clear();
	mOnCheckedChangedCheckedIdParams.clear();
	}

	public void onCheckedChanged(RadioGroup group, int checkedId) {
	mOnCheckedChangedGroupParams.add(group);
	mOnCheckedChangedCheckedIdParams.add(checkedId);
	}
	}

	private class MockOnHierarchyChangeListener implements OnHierarchyChangeListener {
	private View mOnChildViewAddedParentParam;

	private View mOnChildViewAddedChildParam;

	private View mOnChildViewRemovedParentParam;

	private View mOnChildViewRemovedChildParam;

	public View getOnChildViewAddedParentParam() {
	return mOnChildViewAddedParentParam;
	}

	public View getOnChildViewAddedChildParam() {
	return mOnChildViewAddedChildParam;
	}

	public View getOnChildViewRemovedParentParam() {
	return mOnChildViewRemovedParentParam;
	}

	public View getOnChildViewRemovedChildParam() {
	return mOnChildViewRemovedChildParam;
	}

	public void reset() {
	mOnChildViewAddedParentParam = null;
	mOnChildViewAddedChildParam = null;
	mOnChildViewRemovedParentParam = null;
	mOnChildViewRemovedChildParam = null;
	}

	public void onChildViewAdded(View parent, View child) {
	mOnChildViewAddedParentParam = parent;
	mOnChildViewAddedChildParam = child;
	}

	public void onChildViewRemoved(View parent, View child) {
	mOnChildViewRemovedParentParam = parent;
	mOnChildViewRemovedChildParam = child;
	}
	}

	private class MockRadioGroup extends RadioGroup {
	public MockRadioGroup(Context context) {
	super(context);
	}

	@Override
	protected boolean checkLayoutParams(ViewGroup.LayoutParams p) {
	return super.checkLayoutParams(p);
	}

	@Override
	protected android.widget.LinearLayout.LayoutParams generateDefaultLayoutParams() {
	return super.generateDefaultLayoutParams();
	}

	@Override
	protected void onFinishInflate() {
	super.onFinishInflate();
	}
	}
	}