| /* |
| * 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 android.content.Context; |
| import android.test.InstrumentationTestCase; |
| import android.view.ViewGroup; |
| import android.widget.ListView; |
| import android.widget.TextSwitcher; |
| import android.widget.TextView; |
| |
| /** |
| * Test {@link TextSwitcher}. |
| */ |
| public class TextSwitcherTest extends InstrumentationTestCase { |
| private Context mContext; |
| |
| /** |
| * test width to be used in addView() method. |
| */ |
| private static final int PARAMS_WIDTH = 200; |
| /** |
| * test height to be used in addView() method. |
| */ |
| private static final int PARAMS_HEIGHT = 300; |
| |
| @Override |
| protected void setUp() throws Exception { |
| super.setUp(); |
| mContext = getInstrumentation().getContext(); |
| } |
| |
| public void testConstructor() { |
| new TextSwitcher(mContext); |
| |
| new TextSwitcher(mContext, null); |
| } |
| |
| public void testSetText() { |
| final String viewText1 = "Text 1"; |
| final String viewText2 = "Text 2"; |
| final String changedText = "Changed"; |
| |
| TextSwitcher textSwitcher = new TextSwitcher(mContext); |
| |
| TextView tv1 = new TextView(mContext); |
| TextView tv2 = new TextView(mContext); |
| tv1.setText(viewText1); |
| tv2.setText(viewText2); |
| textSwitcher.addView(tv1, 0, new ViewGroup.LayoutParams(PARAMS_WIDTH, PARAMS_HEIGHT)); |
| textSwitcher.addView(tv2, 1, new ViewGroup.LayoutParams(PARAMS_WIDTH, PARAMS_HEIGHT)); |
| |
| TextView tvChild1 = (TextView) textSwitcher.getChildAt(0); |
| TextView tvChild2 = (TextView) textSwitcher.getChildAt(1); |
| assertEquals(viewText1, (tvChild1.getText().toString())); |
| assertEquals(viewText2, (tvChild2.getText().toString())); |
| assertSame(tv1, textSwitcher.getCurrentView()); |
| |
| // tvChild2's text is changed |
| textSwitcher.setText(changedText); |
| assertEquals(viewText1, (tvChild1.getText().toString())); |
| assertEquals(changedText, (tvChild2.getText().toString())); |
| assertSame(tv2, textSwitcher.getCurrentView()); |
| |
| // tvChild1's text is changed |
| textSwitcher.setText(changedText); |
| assertEquals(changedText, (tvChild1.getText().toString())); |
| assertEquals(changedText, (tvChild2.getText().toString())); |
| assertSame(tv1, textSwitcher.getCurrentView()); |
| |
| // tvChild2's text is changed |
| textSwitcher.setText(null); |
| assertEquals(changedText, (tvChild1.getText().toString())); |
| assertEquals("", (tvChild2.getText().toString())); |
| assertSame(tv2, textSwitcher.getCurrentView()); |
| } |
| |
| public void testSetCurrentText() { |
| final String viewText1 = "Text 1"; |
| final String viewText2 = "Text 2"; |
| final String changedText1 = "Changed 1"; |
| final String changedText2 = "Changed 2"; |
| |
| TextSwitcher textSwitcher = new TextSwitcher(mContext); |
| |
| TextView tv1 = new TextView(mContext); |
| TextView tv2 = new TextView(mContext); |
| tv1.setText(viewText1); |
| tv2.setText(viewText2); |
| textSwitcher.addView(tv1, 0, new ViewGroup.LayoutParams(PARAMS_WIDTH, PARAMS_HEIGHT)); |
| textSwitcher.addView(tv2, 1, new ViewGroup.LayoutParams(PARAMS_WIDTH, PARAMS_HEIGHT)); |
| |
| TextView tvChild1 = (TextView) textSwitcher.getChildAt(0); |
| TextView tvChild2 = (TextView) textSwitcher.getChildAt(1); |
| assertEquals(viewText1, (tvChild1.getText().toString())); |
| assertEquals(viewText2, (tvChild2.getText().toString())); |
| assertSame(tv1, textSwitcher.getCurrentView()); |
| |
| // tvChild1's text is changed |
| textSwitcher.setCurrentText(changedText1); |
| assertEquals(changedText1, (tvChild1.getText().toString())); |
| assertEquals(viewText2, (tvChild2.getText().toString())); |
| assertSame(tv1, textSwitcher.getCurrentView()); |
| |
| // tvChild1's text is changed |
| textSwitcher.setCurrentText(changedText2); |
| assertEquals(changedText2, (tvChild1.getText().toString())); |
| assertEquals(viewText2, (tvChild2.getText().toString())); |
| assertSame(tv1, textSwitcher.getCurrentView()); |
| |
| // tvChild1's text is changed |
| textSwitcher.setCurrentText(null); |
| assertEquals("", (tvChild1.getText().toString())); |
| assertEquals(viewText2, (tvChild2.getText().toString())); |
| assertSame(tv1, textSwitcher.getCurrentView()); |
| } |
| |
| public void testAddView() { |
| TextSwitcher textSwitcher = new TextSwitcher(mContext); |
| |
| TextView tv1 = new TextView(mContext); |
| TextView tv2 = new TextView(mContext); |
| |
| textSwitcher.addView(tv1, 0, new ViewGroup.LayoutParams(PARAMS_WIDTH, PARAMS_HEIGHT)); |
| assertSame(tv1, textSwitcher.getChildAt(0)); |
| assertEquals(1, textSwitcher.getChildCount()); |
| |
| try { |
| // tv1 already has a parent |
| textSwitcher.addView(tv1, 0, new ViewGroup.LayoutParams(PARAMS_WIDTH, PARAMS_HEIGHT)); |
| fail("Should throw IllegalStateException"); |
| } catch (IllegalStateException e) { |
| // expected |
| } |
| |
| try { |
| textSwitcher.addView(tv2, Integer.MAX_VALUE, |
| new ViewGroup.LayoutParams(PARAMS_WIDTH, PARAMS_HEIGHT)); |
| fail("Should throw IndexOutOfBoundsException"); |
| } catch (IndexOutOfBoundsException e) { |
| // expected |
| } |
| |
| textSwitcher.addView(tv2, 1, |
| new ViewGroup.LayoutParams(PARAMS_WIDTH, PARAMS_HEIGHT)); |
| assertSame(tv2, textSwitcher.getChildAt(1)); |
| assertEquals(2, textSwitcher.getChildCount()); |
| |
| TextView tv3 = new TextView(mContext); |
| |
| try { |
| // textSwitcher already has 2 children. |
| textSwitcher.addView(tv3, 2, new ViewGroup.LayoutParams(PARAMS_WIDTH, PARAMS_HEIGHT)); |
| fail("Should throw IllegalStateException"); |
| } catch (IllegalStateException e) { |
| // expected |
| } |
| |
| textSwitcher = new TextSwitcher(mContext); |
| ListView lv = new ListView(mContext); |
| |
| try { |
| textSwitcher.addView(lv, 0, new ViewGroup.LayoutParams(PARAMS_WIDTH, PARAMS_HEIGHT)); |
| fail("Should throw IllegalArgumentException"); |
| } catch (IllegalArgumentException e) { |
| // expected |
| } |
| |
| try { |
| textSwitcher.addView(null, 0, new ViewGroup.LayoutParams(PARAMS_WIDTH, PARAMS_HEIGHT)); |
| fail("Should throw IllegalArgumentException"); |
| } catch (IllegalArgumentException e) { |
| // expected |
| } |
| |
| try { |
| textSwitcher.addView(tv3, 0, null); |
| fail("Should throw NullPointerException"); |
| } catch (NullPointerException e) { |
| // expected |
| // issue 1695243, not clear what is supposed to happen if the LayoutParams is null. |
| } |
| } |
| } |