// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package org.chromium.content.browser.selection;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.mockito.Mockito.inOrder;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.when;
import android.content.Context;
import android.view.textclassifier.SelectionEvent;
import android.view.textclassifier.TextClassificationManager;
import android.view.textclassifier.TextClassifier;
import androidx.test.core.app.ApplicationProvider;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.ArgumentCaptor;
import org.mockito.InOrder;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.MockitoAnnotations;
import org.robolectric.annotation.Config;
import org.robolectric.shadows.ShadowLog;
import org.chromium.base.test.BaseRobolectricTestRunner;
import org.chromium.base.test.util.Feature;
import org.chromium.content.browser.webcontents.WebContentsImpl;
import org.chromium.ui.base.WindowAndroid;
import java.lang.ref.WeakReference;
import java.text.BreakIterator;
/** Unit tests for the {@link SmartSelectionEventProcessor}. */
@RunWith(BaseRobolectricTestRunner.class)
@Config(manifest = Config.NONE)
public class SmartSelectionEventProcessorTest {
private WebContentsImpl mWebContents;
private WindowAndroid mWindowAndroid;
@Mock private TextClassifier mTextClassifier;
// Char index (in 10s)
// Word index (thou)
private static String sText =
""
// 0 1 2 3 4
// -7-6 -5-4 -3-2 -1 0 1 2
+ "O Romeo, Romeo! Wherefore art thou Romeo?\n"
// 5 6 7
// 3 4 5 6 7 8 9 0
+ "Deny thy father and refuse thy name.\n"
// 8 9 0 1 2
// 1 2 3 4 5 6 7 8 9 0 1 2 3
+ "Or, if thou wilt not, be but sworn my love,\n"
// 3 4 5
// 4 567 8 9 0 1 2 34
+ "And I’ll no longer be a Capulet.\n";
@Before
public void setUp() {
MockitoAnnotations.initMocks(this);
ShadowLog.stream = System.out;
mWebContents = Mockito.mock(WebContentsImpl.class);
mWindowAndroid = Mockito.mock(WindowAndroid.class);
when(mWebContents.getTopLevelNativeWindow()).thenReturn(mWindowAndroid);
when(mWindowAndroid.getContext())
.thenReturn(
new WeakReference<Context>(ApplicationProvider.getApplicationContext()));
TextClassificationManager tcm =
ApplicationProvider.getApplicationContext()
.getSystemService(TextClassificationManager.class);
tcm.setTextClassifier(mTextClassifier);
}
@Test
@Feature({"TextInput", "SmartSelection"})
public void testOverlap() {
assertTrue(SelectionIndicesConverter.overlap(1, 3, 2, 4));
assertTrue(SelectionIndicesConverter.overlap(2, 4, 1, 3));
assertTrue(SelectionIndicesConverter.overlap(1, 4, 2, 3));
assertTrue(SelectionIndicesConverter.overlap(2, 3, 1, 4));
assertTrue(SelectionIndicesConverter.overlap(1, 4, 1, 3));
assertTrue(SelectionIndicesConverter.overlap(1, 3, 1, 4));
assertTrue(SelectionIndicesConverter.overlap(1, 4, 2, 4));
assertTrue(SelectionIndicesConverter.overlap(2, 4, 1, 4));
assertTrue(SelectionIndicesConverter.overlap(1, 4, 1, 4));
assertFalse(SelectionIndicesConverter.overlap(1, 2, 3, 4));
assertFalse(SelectionIndicesConverter.overlap(3, 4, 1, 2));
assertFalse(SelectionIndicesConverter.overlap(1, 2, 2, 4));
assertFalse(SelectionIndicesConverter.overlap(2, 4, 1, 2));
}
@Test
@Feature({"TextInput", "SmartSelection"})
public void testContains() {
assertFalse(SelectionIndicesConverter.contains(1, 3, 2, 4));
assertFalse(SelectionIndicesConverter.contains(2, 4, 1, 3));
assertTrue(SelectionIndicesConverter.contains(1, 4, 2, 3));
assertFalse(SelectionIndicesConverter.contains(2, 3, 1, 4));
assertTrue(SelectionIndicesConverter.contains(1, 4, 1, 3));
assertFalse(SelectionIndicesConverter.contains(1, 3, 1, 4));
assertTrue(SelectionIndicesConverter.contains(1, 4, 2, 4));
assertFalse(SelectionIndicesConverter.contains(2, 4, 1, 4));
assertTrue(SelectionIndicesConverter.contains(1, 4, 1, 4));
assertFalse(SelectionIndicesConverter.contains(1, 2, 3, 4));
assertFalse(SelectionIndicesConverter.contains(3, 4, 1, 2));
assertFalse(SelectionIndicesConverter.contains(1, 2, 2, 4));
assertFalse(SelectionIndicesConverter.contains(2, 4, 1, 2));
}
@Test
@Feature({"TextInput", "SmartSelection"})
public void testUpdateSelectionState() {
SelectionIndicesConverter converter = new SelectionIndicesConverter();
String address = "1600 Amphitheatre Parkway, Mountain View, CA 94043.";
assertTrue(converter.updateSelectionState(address.substring(18, 25), 18));
assertEquals("Parkway", converter.getGlobalSelectionText());
assertEquals(18, converter.getGlobalStartOffset());
// Expansion.
assertTrue(converter.updateSelectionState(address.substring(5, 35), 5));
assertEquals("Amphitheatre Parkway, Mountain", converter.getGlobalSelectionText());
assertEquals(5, converter.getGlobalStartOffset());
// Drag left handle. Select "Mountain".
assertTrue(converter.updateSelectionState(address.substring(27, 35), 27));
assertEquals("Amphitheatre Parkway, Mountain", converter.getGlobalSelectionText());
assertEquals(5, converter.getGlobalStartOffset());
// Drag left handle. Select " View".
assertTrue(converter.updateSelectionState(address.substring(35, 40), 35));
assertEquals("Amphitheatre Parkway, Mountain View", converter.getGlobalSelectionText());
assertEquals(5, converter.getGlobalStartOffset());
// Drag left handle. Select "1600 Amphitheatre Parkway, Mountain View".
assertTrue(converter.updateSelectionState(address.substring(0, 40), 0));
assertEquals(
"1600 Amphitheatre Parkway, Mountain View", converter.getGlobalSelectionText());
assertEquals(0, converter.getGlobalStartOffset());
}
@Test
@Feature({"TextInput", "SmartSelection"})
public void testUpdateSelectionStateOffsets() {
SelectionIndicesConverter converter = new SelectionIndicesConverter();
String address = "1600 Amphitheatre Parkway, Mountain View, CA 94043.";
assertTrue(converter.updateSelectionState(address.substring(18, 25), 18));
assertEquals("Parkway", converter.getGlobalSelectionText());
assertEquals(18, converter.getGlobalStartOffset());
// Drag to select "Amphitheatre Parkway". Overlap.
assertFalse(converter.updateSelectionState(address.substring(5, 25), 18));
assertNull(converter.getGlobalSelectionText());
// Reset.
converter = new SelectionIndicesConverter();
assertTrue(converter.updateSelectionState(address.substring(18, 25), 18));
assertEquals("Parkway", converter.getGlobalSelectionText());
assertEquals(18, converter.getGlobalStartOffset());
// Drag to select "Amphitheatre Parkway". Overlap.
assertFalse(converter.updateSelectionState(address.substring(5, 25), 0));
assertNull(converter.getGlobalSelectionText());
// Reset.
converter = new SelectionIndicesConverter();
assertTrue(converter.updateSelectionState(address.substring(36, 40), 36));
assertEquals("View", converter.getGlobalSelectionText());
assertEquals(36, converter.getGlobalStartOffset());
// Drag to select "Mountain View". Not overlap.
assertFalse(converter.updateSelectionState(address.substring(27, 40), 0));
assertNull(converter.getGlobalSelectionText());
// Reset.
converter = new SelectionIndicesConverter();
assertTrue(converter.updateSelectionState(address.substring(36, 40), 36));
assertEquals("View", converter.getGlobalSelectionText());
assertEquals(36, converter.getGlobalStartOffset());
// Drag to select "Mountain View". Adjacent. Wrong case.
assertTrue(converter.updateSelectionState(address.substring(27, 40), 40));
assertEquals("ViewMountain View", converter.getGlobalSelectionText());
assertEquals(36, converter.getGlobalStartOffset());
String text = "a a a a a";
// Reset.
converter = new SelectionIndicesConverter();
assertTrue(converter.updateSelectionState(text.substring(2, 3), 2));
assertEquals("a", converter.getGlobalSelectionText());
assertEquals(2, converter.getGlobalStartOffset());
// Drag to select "a a". Contains. Wrong case.
assertTrue(converter.updateSelectionState(text.substring(4, 7), 2));
assertEquals("a a", converter.getGlobalSelectionText());
assertEquals(2, converter.getGlobalStartOffset());
}
@Test
@Feature({"TextInput", "SmartSelection"})
public void testIsWhitespace() {
SelectionIndicesConverter converter = new SelectionIndicesConverter();
String test = "\u202F\u00A0 \t\n\u000b\f\r";
converter.updateSelectionState(test, 0);
assertTrue(converter.isWhitespace(0, test.length()));
}
@Test
@Feature({"TextInput", "SmartSelection"})
public void testCountWordsBackward() {
SelectionIndicesConverter converter = new SelectionIndicesConverter();
converter.updateSelectionState(sText, 0);
BreakIterator iterator = BreakIterator.getWordInstance();
iterator.setText(sText);
// End with "Deny" from right.
assertEquals(0, converter.countWordsBackward(42, 42, iterator));
assertEquals(1, converter.countWordsBackward(43, 42, iterator));
assertEquals(8, converter.countWordsBackward(79, 42, iterator));
assertEquals(31, converter.countWordsBackward(sText.length(), 42, iterator));
// End with "e" in "Deny" from right.
assertEquals(1, converter.countWordsBackward(44, 43, iterator));
assertEquals(8, converter.countWordsBackward(79, 43, iterator));
assertEquals(31, converter.countWordsBackward(sText.length(), 43, iterator));
}
@Test
@Feature({"TextInput", "SmartSelection"})
public void testCountWordsForward() {
SelectionIndicesConverter converter = new SelectionIndicesConverter();
converter.updateSelectionState(sText, 0);
BreakIterator iterator = BreakIterator.getWordInstance();
iterator.setText(sText);
// End with "Deny" from left.
assertEquals(0, converter.countWordsForward(42, 42, iterator));
assertEquals(0, converter.countWordsForward(41, 42, iterator));
assertEquals(5, converter.countWordsForward(16, 42, iterator));
assertEquals(10, converter.countWordsForward(0, 42, iterator));
// End with "e" in "Deny" from left.
assertEquals(1, converter.countWordsForward(42, 43, iterator));
assertEquals(6, converter.countWordsForward(16, 43, iterator));
assertEquals(11, converter.countWordsForward(0, 43, iterator));
}
@Test
@Feature({"TextInput", "SmartSelection"})
public void testGetWordDelta() {
SelectionIndicesConverter converter = new SelectionIndicesConverter();
// char offset 0 5 0 5 0 5
// -1 0 1 2 3 45
String test = "It\u00A0has\nnon breaking\tspaces.";
converter.updateSelectionState(test, 0);
converter.setInitialStartOffset(3);
int[] indices = new int[2];
// Whole range. "It\u00A0has\nnon breaking\tspaces."
converter.getWordDelta(0, test.length(), indices);
assertEquals(-1, indices[0]);
assertEquals(5, indices[1]);
// Itself. "has"
converter.getWordDelta(3, 6, indices);
assertEquals(0, indices[0]);
assertEquals(1, indices[1]);
// No overlap left. "It"
converter.getWordDelta(0, 2, indices);
assertEquals(-1, indices[0]);
assertEquals(0, indices[1]);
// No overlap right. "space"
converter.getWordDelta(20, 25, indices);
assertEquals(3, indices[0]);
assertEquals(4, indices[1]);
// "breaking\tspace"
converter.getWordDelta(11, 25, indices);
assertEquals(2, indices[0]);
assertEquals(4, indices[1]);
// Extra space case. " breaking\tspace"
converter.getWordDelta(10, 25, indices);
assertEquals(2, indices[0]);
assertEquals(4, indices[1]);
// Partial word. "re" in "breaking".
converter.getWordDelta(12, 14, indices);
assertEquals(2, indices[0]);
assertEquals(3, indices[1]);
// Partial word. "t" in "It".
converter.getWordDelta(1, 2, indices);
assertEquals(-1, indices[0]);
assertEquals(0, indices[1]);
}
@Test
@Feature({"TextInput", "SmartSelection"})
public void testNormalLoggingFlow() {
SmartSelectionEventProcessor logger = SmartSelectionEventProcessor.create(mWebContents);
ArgumentCaptor<SelectionEvent> captor = ArgumentCaptor.forClass(SelectionEvent.class);
InOrder inOrder = inOrder(mTextClassifier);
// Start to select, selected "thou" in row#1.
logger.onSelectionStarted("thou", 30, /* editable= */ false);
inOrder.verify(mTextClassifier).onSelectionEvent(captor.capture());
SelectionEvent selectionEvent = captor.getValue();
assertSelectionStartedEvent(selectionEvent);
// Smart Selection, expand to "Wherefore art thou Romeo?".
logger.onSelectionModified("Wherefore art thou Romeo?", 16, null);
inOrder.verify(mTextClassifier).onSelectionEvent(captor.capture());
selectionEvent = captor.getValue();
assertEvent(
selectionEvent,
SelectionEvent.EVENT_SELECTION_MODIFIED,
/* expectedStart= */ -2,
/* expectedEnd= */ 3);
// Smart Selection reset, to the last Romeo in row#1.
logger.onSelectionAction("Romeo", 35, SelectionEvent.ACTION_RESET, null);
inOrder.verify(mTextClassifier).onSelectionEvent(captor.capture());
selectionEvent = captor.getValue();
assertEquals(SelectionEvent.ACTION_RESET, selectionEvent.getEventType());
assertEvent(
selectionEvent,
SelectionEvent.ACTION_RESET,
/* expectedStart= */ 1,
/* expectedEnd= */ 2);
// User clear selection.
logger.onSelectionAction("Romeo", 35, SelectionEvent.ACTION_ABANDON, null);
inOrder.verify(mTextClassifier).onSelectionEvent(captor.capture());
selectionEvent = captor.getValue();
assertEvent(
selectionEvent,
SelectionEvent.ACTION_ABANDON,
/* expectedStart= */ 1,
/* expectedEnd= */ 2);
// User start a new selection without abandon.
logger.onSelectionStarted("thou", 30, /* editable= */ false);
inOrder.verify(mTextClassifier).onSelectionEvent(captor.capture());
selectionEvent = captor.getValue();
assertSelectionStartedEvent(selectionEvent);
// Smart Selection, expand to "Wherefore art thou Romeo?".
logger.onSelectionModified("Wherefore art thou Romeo?", 16, null);
inOrder.verify(mTextClassifier).onSelectionEvent(captor.capture());
selectionEvent = captor.getValue();
assertEvent(
selectionEvent,
SelectionEvent.EVENT_SELECTION_MODIFIED,
/* expectedStart= */ -2,
/* expectedEnd= */ 3);
// COPY, PASTE, CUT, SHARE, SMART_SHARE are basically the same.
logger.onSelectionAction("Wherefore art thou Romeo?", 16, SelectionEvent.ACTION_COPY, null);
inOrder.verify(mTextClassifier).onSelectionEvent(captor.capture());
selectionEvent = captor.getValue();
assertEvent(
selectionEvent,
SelectionEvent.ACTION_COPY,
/* expectedStart= */ -2,
/* expectedEnd= */ 3);
// SELECT_ALL
logger.onSelectionStarted("thou", 30, /* editable= */ true);
inOrder.verify(mTextClassifier).onSelectionEvent(captor.capture());
selectionEvent = captor.getValue();
assertSelectionStartedEvent(selectionEvent);
logger.onSelectionAction(sText, 0, SelectionEvent.ACTION_SELECT_ALL, null);
inOrder.verify(mTextClassifier).onSelectionEvent(captor.capture());
selectionEvent = captor.getValue();
assertEvent(
selectionEvent,
SelectionEvent.ACTION_SELECT_ALL,
/* expectedStart= */ -7,
/* expectedEnd= */ 34);
}
@Test
@Feature({"TextInput", "SmartSelection"})
public void testMultipleDrag() {
SmartSelectionEventProcessor logger = SmartSelectionEventProcessor.create(mWebContents);
ArgumentCaptor<SelectionEvent> captor = ArgumentCaptor.forClass(SelectionEvent.class);
InOrder inOrder = inOrder(mTextClassifier);
// Start new selection. First "Deny" in row#2.
logger.onSelectionStarted("Deny", 42, /* editable= */ false);
inOrder.verify(mTextClassifier).onSelectionEvent(captor.capture());
SelectionEvent selectionEvent = captor.getValue();
assertSelectionStartedEvent(selectionEvent);
// Drag right handle to "father".
logger.onSelectionModified("Deny thy father", 42, null);
inOrder.verify(mTextClassifier).onSelectionEvent(captor.capture());
selectionEvent = captor.getValue();
assertEvent(
selectionEvent,
SelectionEvent.EVENT_SELECTION_MODIFIED,
/* expectedStart= */ 0,
/* expectedEnd= */ 3);
// Drag left handle to " and refuse"
logger.onSelectionModified(" and refuse", 57, null);
inOrder.verify(mTextClassifier).onSelectionEvent(captor.capture());
selectionEvent = captor.getValue();
assertEvent(
selectionEvent,
SelectionEvent.EVENT_SELECTION_MODIFIED,
/* expectedStart= */ 3,
/* expectedEnd= */ 5);
// Drag right handle to " Romeo?\nDeny thy father".
logger.onSelectionModified(" Romeo?\nDeny thy father", 34, null);
inOrder.verify(mTextClassifier).onSelectionEvent(captor.capture());
selectionEvent = captor.getValue();
assertEvent(
selectionEvent,
SelectionEvent.EVENT_SELECTION_MODIFIED,
/* expectedStart= */ -2,
/* expectedEnd= */ 3);
// Dismiss the selection.
logger.onSelectionAction(
" Romeo?\nDeny thy father", 34, SelectionEvent.ACTION_ABANDON, null);
inOrder.verify(mTextClassifier).onSelectionEvent(captor.capture());
selectionEvent = captor.getValue();
assertEvent(
selectionEvent,
SelectionEvent.ACTION_ABANDON,
/* expectedStart= */ -2,
/* expectedEnd= */ 3);
// Start a new selection.
logger.onSelectionStarted("Deny", 42, /* editable= */ false);
inOrder.verify(mTextClassifier).onSelectionEvent(captor.capture());
selectionEvent = captor.getValue();
assertSelectionStartedEvent(selectionEvent);
}
@Test
@Feature({"TextInput", "SmartSelection"})
public void testTextShift() {
SmartSelectionEventProcessor logger = SmartSelectionEventProcessor.create(mWebContents);
ArgumentCaptor<SelectionEvent> captor = ArgumentCaptor.forClass(SelectionEvent.class);
InOrder inOrder = inOrder(mTextClassifier);
// Start to select, selected "thou" in row#1.
logger.onSelectionStarted("thou", 30, /* editable= */ false);
inOrder.verify(mTextClassifier).onSelectionEvent(captor.capture());
SelectionEvent selectionEvent = captor.getValue();
assertSelectionStartedEvent(selectionEvent);
// Smart Selection, expand to "Wherefore art thou Romeo?".
logger.onSelectionModified("Wherefore art thou Romeo?", 30, null);
inOrder.verify(mTextClassifier, never())
.onSelectionEvent(Mockito.any(SelectionEvent.class));
// Start to select, selected "thou" in row#1.
logger.onSelectionStarted("thou", 30, /* editable= */ false);
inOrder.verify(mTextClassifier).onSelectionEvent(captor.capture());
selectionEvent = captor.getValue();
assertSelectionStartedEvent(selectionEvent);
// Drag. Non-intersect case.
logger.onSelectionModified("Wherefore art thou", 10, null);
inOrder.verify(mTextClassifier, never())
.onSelectionEvent(Mockito.any(SelectionEvent.class));
// Start to select, selected "thou" in row#1.
logger.onSelectionStarted("thou", 30, /* editable= */ false);
inOrder.verify(mTextClassifier).onSelectionEvent(captor.capture());
selectionEvent = captor.getValue();
assertSelectionStartedEvent(selectionEvent);
// Drag. Adjacent case, form "Wherefore art thouthou". Wrong case.
logger.onSelectionModified("Wherefore art thou", 12, null);
inOrder.verify(mTextClassifier).onSelectionEvent(captor.capture());
selectionEvent = captor.getValue();
assertEvent(
selectionEvent,
SelectionEvent.EVENT_SELECTION_MODIFIED,
/* expectedStart= */ -3,
/* expectedEnd= */ 0);
}
@Test
@Feature({"TextInput", "SmartSelection"})
public void testSelectionChanged() {
SmartSelectionEventProcessor logger = SmartSelectionEventProcessor.create(mWebContents);
ArgumentCaptor<SelectionEvent> captor = ArgumentCaptor.forClass(SelectionEvent.class);
InOrder inOrder = inOrder(mTextClassifier);
// Start to select, selected "thou" in row#1.
logger.onSelectionStarted("thou", 30, /* editable= */ false);
inOrder.verify(mTextClassifier).onSelectionEvent(captor.capture());
SelectionEvent selectionEvent = captor.getValue();
assertSelectionStartedEvent(selectionEvent);
// Change "thou" to "math".
logger.onSelectionModified("Wherefore art math", 16, null);
inOrder.verify(mTextClassifier, never())
.onSelectionEvent(Mockito.any(SelectionEvent.class));
// Start to select, selected "thou" in row#1.
logger.onSelectionStarted("thou", 30, /* editable= */ false);
inOrder.verify(mTextClassifier).onSelectionEvent(captor.capture());
selectionEvent = captor.getValue();
assertSelectionStartedEvent(selectionEvent);
// Drag while deleting "art ". Wrong case.
logger.onSelectionModified("Wherefore thou", 16, null);
inOrder.verify(mTextClassifier).onSelectionEvent(captor.capture());
selectionEvent = captor.getValue();
assertEvent(
selectionEvent,
SelectionEvent.EVENT_SELECTION_MODIFIED,
/* expectedStart= */ -2,
/* expectedEnd= */ 0);
// Start to select, selected "thou" in row#1.
logger.onSelectionStarted("thou", 30, /* editable= */ false);
inOrder.verify(mTextClassifier).onSelectionEvent(captor.capture());
selectionEvent = captor.getValue();
assertSelectionStartedEvent(selectionEvent);
// Drag while deleting "Wherefore art ".
logger.onSelectionModified("thou", 16, null);
inOrder.verify(mTextClassifier, never())
.onSelectionEvent(Mockito.any(SelectionEvent.class));
}
private static void assertSelectionStartedEvent(SelectionEvent event) {
assertEquals(SelectionEvent.EVENT_SELECTION_STARTED, event.getEventType());
assertEquals(0, event.getStart());
assertEquals(1, event.getEnd());
}
private static void assertEvent(
SelectionEvent event, int eventType, int expectedStart, int expectedEnd) {
assertEquals(eventType, event.getEventType());
assertEquals(expectedStart, event.getStart());
assertEquals(expectedEnd, event.getEnd());
}
}
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