| /* |
| * 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; |
| |
| import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE; |
| import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_PORTRAIT; |
| |
| import static junit.framework.Assert.assertEquals; |
| import static junit.framework.Assert.assertFalse; |
| import static junit.framework.Assert.assertNotNull; |
| import static junit.framework.Assert.assertTrue; |
| |
| import android.app.Activity; |
| import android.app.Instrumentation; |
| import android.content.Context; |
| import android.graphics.Paint; |
| import android.platform.test.annotations.Presubmit; |
| import android.text.GetChars; |
| import android.text.Layout; |
| import android.text.PrecomputedText; |
| import android.view.View; |
| import android.view.inputmethod.EditorInfo; |
| import android.widget.TextView.BufferType; |
| |
| import androidx.test.InstrumentationRegistry; |
| import androidx.test.annotation.UiThreadTest; |
| import androidx.test.filters.MediumTest; |
| import androidx.test.rule.ActivityTestRule; |
| import androidx.test.runner.AndroidJUnit4; |
| |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| import java.lang.reflect.Field; |
| import java.util.Locale; |
| |
| /** |
| * TextViewTest tests {@link TextView}. |
| */ |
| @RunWith(AndroidJUnit4.class) |
| @MediumTest |
| public class TextViewTest { |
| @Rule |
| public ActivityTestRule<TextViewActivity> mActivityRule = new ActivityTestRule<>( |
| TextViewActivity.class); |
| private Instrumentation mInstrumentation; |
| private Activity mActivity; |
| private TextView mTextView; |
| |
| @Before |
| public void setup() { |
| mActivity = mActivityRule.getActivity(); |
| mInstrumentation = InstrumentationRegistry.getInstrumentation(); |
| } |
| |
| @Presubmit |
| @UiThreadTest |
| @Test |
| public void testArray() { |
| mTextView = new TextView(mActivity); |
| |
| char[] c = new char[] { 'H', 'e', 'l', 'l', 'o', ' ', |
| 'W', 'o', 'r', 'l', 'd', '!' }; |
| |
| mTextView.setText(c, 1, 4); |
| CharSequence oldText = mTextView.getText(); |
| |
| mTextView.setText(c, 4, 5); |
| CharSequence newText = mTextView.getText(); |
| |
| assertTrue(newText == oldText); |
| |
| assertEquals(5, newText.length()); |
| assertEquals('o', newText.charAt(0)); |
| assertEquals("o Wor", newText.toString()); |
| |
| assertEquals(" Wo", newText.subSequence(1, 4)); |
| |
| char[] c2 = new char[7]; |
| ((GetChars) newText).getChars(1, 4, c2, 2); |
| assertEquals('\0', c2[1]); |
| assertEquals(' ', c2[2]); |
| assertEquals('W', c2[3]); |
| assertEquals('o', c2[4]); |
| assertEquals('\0', c2[5]); |
| } |
| |
| @Test |
| @UiThreadTest |
| public void testHyphenationWidth() { |
| mTextView = new TextView(mActivity); |
| mTextView.setHyphenationFrequency(Layout.HYPHENATION_FREQUENCY_FULL); |
| mTextView.setTextLocale(Locale.US); |
| |
| Paint paint = mTextView.getPaint(); |
| |
| String word = "thisissuperlonglongword"; |
| float wordWidth = paint.measureText(word, 0, word.length()); |
| |
| StringBuilder sb = new StringBuilder(); |
| for (int i = 0; i < 100; ++i) { |
| sb.append(word); |
| sb.append(" "); |
| } |
| mTextView.setText(sb.toString()); |
| |
| int width = (int)(wordWidth * 0.7); |
| int height = 4096; // enough for all text. |
| |
| mTextView.measure( |
| View.MeasureSpec.makeMeasureSpec(width, View.MeasureSpec.EXACTLY), |
| View.MeasureSpec.makeMeasureSpec(height, View.MeasureSpec.EXACTLY)); |
| mTextView.layout(0, 0, width, height); |
| |
| Layout layout = mTextView.getLayout(); |
| assertNotNull(layout); |
| |
| int lineCount = layout.getLineCount(); |
| boolean hyphenationHappend = false; |
| for (int i = 0; i < lineCount; ++i) { |
| if (layout.getStartHyphenEdit(i) == Paint.START_HYPHEN_EDIT_NO_EDIT |
| && layout.getEndHyphenEdit(i) == Paint.END_HYPHEN_EDIT_NO_EDIT) { |
| continue; // Hyphantion does not happen. |
| } |
| hyphenationHappend = true; |
| |
| int start = layout.getLineStart(i); |
| int end = layout.getLineEnd(i); |
| |
| float withoutHyphenLength = paint.measureText(sb, start, end); |
| float withHyphenLength = layout.getLineWidth(i); |
| |
| assertTrue("LineWidth should take account of hyphen length.", |
| withHyphenLength > withoutHyphenLength); |
| } |
| assertTrue("Hyphenation must happen on TextView narrower than the word width", |
| hyphenationHappend); |
| } |
| |
| @Test |
| @UiThreadTest |
| public void testCopyShouldNotThrowException() throws Throwable { |
| mTextView = new TextView(mActivity); |
| mTextView.setTextIsSelectable(true); |
| mTextView.setText(createLongText()); |
| mTextView.onTextContextMenuItem(TextView.ID_SELECT_ALL); |
| mTextView.onTextContextMenuItem(TextView.ID_COPY); |
| } |
| |
| @Test |
| @UiThreadTest |
| public void testCutShouldNotThrowException() throws Throwable { |
| mTextView = new TextView(mActivity); |
| mTextView.setTextIsSelectable(true); |
| mTextView.setText(createLongText()); |
| mTextView.onTextContextMenuItem(TextView.ID_SELECT_ALL); |
| mTextView.onTextContextMenuItem(TextView.ID_CUT); |
| } |
| |
| @Test |
| public void testUseDynamicLayout() { |
| mTextView = new TextView(mActivity); |
| mTextView.setTextIsSelectable(true); |
| String text = "HelloWorld"; |
| PrecomputedText precomputed = |
| PrecomputedText.create(text, mTextView.getTextMetricsParams()); |
| |
| mTextView.setTextIsSelectable(false); |
| mTextView.setText(text); |
| assertFalse(mTextView.useDynamicLayout()); |
| |
| mTextView.setTextIsSelectable(true); |
| mTextView.setText(text); |
| assertTrue(mTextView.useDynamicLayout()); |
| |
| mTextView.setTextIsSelectable(false); |
| mTextView.setText(precomputed); |
| assertFalse(mTextView.useDynamicLayout()); |
| |
| mTextView.setTextIsSelectable(true); |
| mTextView.setText(precomputed); |
| assertTrue(mTextView.useDynamicLayout()); |
| } |
| |
| @Test |
| public void testUseDynamicLayout_SPANNABLE() { |
| mTextView = new TextView(mActivity); |
| mTextView.setTextIsSelectable(true); |
| String text = "HelloWorld"; |
| PrecomputedText precomputed = |
| PrecomputedText.create(text, mTextView.getTextMetricsParams()); |
| |
| mTextView.setTextIsSelectable(false); |
| mTextView.setText(text, BufferType.SPANNABLE); |
| android.util.Log.e("TextViewTest", "Text:" + mTextView.getText().getClass().getName()); |
| assertTrue(mTextView.useDynamicLayout()); |
| |
| mTextView.setTextIsSelectable(true); |
| mTextView.setText(text, BufferType.SPANNABLE); |
| assertTrue(mTextView.useDynamicLayout()); |
| |
| mTextView.setTextIsSelectable(false); |
| mTextView.setText(precomputed, BufferType.SPANNABLE); |
| assertFalse(mTextView.useDynamicLayout()); |
| |
| mTextView.setTextIsSelectable(true); |
| mTextView.setText(precomputed, BufferType.SPANNABLE); |
| assertTrue(mTextView.useDynamicLayout()); |
| } |
| |
| @Test |
| public void testUseDynamicLayout_EDITABLE() { |
| mTextView = new TextView(mActivity); |
| mTextView.setTextIsSelectable(true); |
| String text = "HelloWorld"; |
| PrecomputedText precomputed = |
| PrecomputedText.create(text, mTextView.getTextMetricsParams()); |
| |
| mTextView.setTextIsSelectable(false); |
| mTextView.setText(text, BufferType.EDITABLE); |
| assertTrue(mTextView.useDynamicLayout()); |
| |
| mTextView.setTextIsSelectable(true); |
| mTextView.setText(text, BufferType.EDITABLE); |
| assertTrue(mTextView.useDynamicLayout()); |
| |
| mTextView.setTextIsSelectable(false); |
| mTextView.setText(precomputed, BufferType.EDITABLE); |
| assertTrue(mTextView.useDynamicLayout()); |
| |
| mTextView.setTextIsSelectable(true); |
| mTextView.setText(precomputed, BufferType.EDITABLE); |
| assertTrue(mTextView.useDynamicLayout()); |
| } |
| |
| @Test |
| @UiThreadTest |
| public void testConstructor_doesNotLeaveTextNull() { |
| mTextView = new NullSetTextTextView(mActivity); |
| // Check that mText and mTransformed are empty string instead of null. |
| assertEquals("", mTextView.getText().toString()); |
| assertEquals("", mTextView.getTransformed().toString()); |
| } |
| |
| @Test |
| @UiThreadTest |
| public void testPortraitDoesntSupportFullscreenIme() { |
| mActivity.setRequestedOrientation(SCREEN_ORIENTATION_PORTRAIT); |
| mTextView = new NullSetTextTextView(mActivity); |
| mTextView.requestFocus(); |
| assertEquals("IME_FLAG_NO_FULLSCREEN should be set", |
| mTextView.getImeOptions(), |
| mTextView.getImeOptions() & EditorInfo.IME_FLAG_NO_FULLSCREEN); |
| |
| mTextView.clearFocus(); |
| mActivity.setRequestedOrientation(SCREEN_ORIENTATION_LANDSCAPE); |
| mTextView = new NullSetTextTextView(mActivity); |
| mTextView.requestFocus(); |
| assertEquals("IME_FLAG_NO_FULLSCREEN should not be set", |
| 0, mTextView.getImeOptions() & EditorInfo.IME_FLAG_NO_FULLSCREEN); |
| } |
| |
| @Test |
| @UiThreadTest |
| public void setSetImeConsumesInput_recoveryToVisible() { |
| mTextView = new TextView(mActivity); |
| mTextView.setCursorVisible(true); |
| assertTrue(mTextView.isCursorVisible()); |
| |
| mTextView.setImeConsumesInput(true); |
| assertFalse(mTextView.isCursorVisible()); |
| |
| mTextView.setImeConsumesInput(false); |
| assertTrue(mTextView.isCursorVisible()); |
| } |
| |
| @Test |
| @UiThreadTest |
| public void setSetImeConsumesInput_recoveryToInvisible() { |
| mTextView = new TextView(mActivity); |
| mTextView.setCursorVisible(false); |
| assertFalse(mTextView.isCursorVisible()); |
| |
| mTextView.setImeConsumesInput(true); |
| assertFalse(mTextView.isCursorVisible()); |
| |
| mTextView.setImeConsumesInput(false); |
| assertFalse(mTextView.isCursorVisible()); |
| } |
| |
| @Test(expected = NullPointerException.class) |
| @UiThreadTest |
| public void setTextCharArrayNullThrows() { |
| mTextView = new TextView(mActivity); |
| mTextView.setText((char[]) null, 0, 0); |
| } |
| |
| @Test |
| @UiThreadTest |
| public void setTextCharArrayValidAfterSetTextString() { |
| mTextView = new TextView(mActivity); |
| mTextView.setText(new char[] { 'h', 'i'}, 0, 2); |
| CharSequence charWrapper = mTextView.getText(); |
| mTextView.setText("null out char wrapper"); |
| assertEquals("hi", charWrapper.toString()); |
| } |
| |
| private String createLongText() { |
| int size = 600 * 1000; |
| final StringBuilder builder = new StringBuilder(size); |
| for (int i = 0; i < size; i++) { |
| builder.append('a'); |
| } |
| return builder.toString(); |
| } |
| |
| private class NullSetTextTextView extends TextView { |
| NullSetTextTextView(Context context) { |
| super(context); |
| } |
| |
| @Override |
| public void setText(CharSequence text, BufferType type) { |
| // #setText will be called from the TextView constructor. Here we reproduce |
| // the situation when the method sets mText and mTransformed to null. |
| try { |
| final Field textField = TextView.class.getDeclaredField("mText"); |
| textField.setAccessible(true); |
| textField.set(this, null); |
| final Field transformedField = TextView.class.getDeclaredField("mTransformed"); |
| transformedField.setAccessible(true); |
| transformedField.set(this, null); |
| } catch (NoSuchFieldException | IllegalAccessException e) { |
| // Empty. |
| } |
| } |
| } |
| } |
