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/*
* Copyright (C) 2018 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 com.android.textclassifier;
import static com.google.common.truth.Truth.assertThat;
import android.app.UiAutomation;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.icu.util.ULocale;
import android.provider.DeviceConfig;
import android.view.textclassifier.ConversationAction;
import android.view.textclassifier.ConversationActions;
import android.view.textclassifier.TextClassification;
import android.view.textclassifier.TextClassificationManager;
import android.view.textclassifier.TextClassifier;
import android.view.textclassifier.TextLanguage;
import android.view.textclassifier.TextLinks;
import android.view.textclassifier.TextLinks.TextLink;
import android.view.textclassifier.TextSelection;
import androidx.test.core.app.ApplicationProvider;
import androidx.test.ext.junit.runners.AndroidJUnit4;
import androidx.test.filters.SmallTest;
import androidx.test.platform.app.InstrumentationRegistry;
import com.google.common.collect.ImmutableList;
import java.util.ArrayList;
import java.util.List;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExternalResource;
import org.junit.runner.RunWith;
/**
* End-to-end tests for the {@link TextClassifier} APIs. Unlike {@link TextClassifierImplTest}.
*
* <p>Unlike {@link TextClassifierImplTest}, we are trying to run the tests in a environment that is
* closer to the production environment. For example, we are not injecting the model files.
*/
@SmallTest
@RunWith(AndroidJUnit4.class)
public class TextClassifierApiTest {
private TextClassifier textClassifier;
@Rule
public final ExtServicesTextClassifierRule extServicesTextClassifierRule =
new ExtServicesTextClassifierRule();
@Before
public void setup() {
textClassifier = extServicesTextClassifierRule.getTextClassifier();
}
@Test
public void suggestSelection() {
String text = "Visit http://www.android.com for more information";
String selected = "http";
String suggested = "http://www.android.com";
int startIndex = text.indexOf(selected);
int endIndex = startIndex + selected.length();
int smartStartIndex = text.indexOf(suggested);
int smartEndIndex = smartStartIndex + suggested.length();
TextSelection.Request request =
new TextSelection.Request.Builder(text, startIndex, endIndex).build();
TextSelection selection = textClassifier.suggestSelection(request);
assertThat(selection.getEntityCount()).isGreaterThan(0);
assertThat(selection.getEntity(0)).isEqualTo(TextClassifier.TYPE_URL);
assertThat(selection.getSelectionStartIndex()).isEqualTo(smartStartIndex);
assertThat(selection.getSelectionEndIndex()).isEqualTo(smartEndIndex);
}
@Test
public void classifyText() {
String text = "Contact me at droid@android.com";
String classifiedText = "droid@android.com";
int startIndex = text.indexOf(classifiedText);
int endIndex = startIndex + classifiedText.length();
TextClassification.Request request =
new TextClassification.Request.Builder(text, startIndex, endIndex).build();
TextClassification classification = textClassifier.classifyText(request);
assertThat(classification.getEntityCount()).isGreaterThan(0);
assertThat(classification.getEntity(0)).isEqualTo(TextClassifier.TYPE_EMAIL);
assertThat(classification.getText()).isEqualTo(classifiedText);
assertThat(classification.getActions()).isNotEmpty();
}
@Test
public void generateLinks() {
String text = "Check this out, http://www.android.com";
TextLinks.Request request = new TextLinks.Request.Builder(text).build();
TextLinks textLinks = textClassifier.generateLinks(request);
List<TextLink> links = new ArrayList<>(textLinks.getLinks());
assertThat(textLinks.getText().toString()).isEqualTo(text);
assertThat(links).hasSize(1);
assertThat(links.get(0).getEntityCount()).isGreaterThan(0);
assertThat(links.get(0).getEntity(0)).isEqualTo(TextClassifier.TYPE_URL);
assertThat(links.get(0).getConfidenceScore(TextClassifier.TYPE_URL)).isGreaterThan(0f);
}
@Test
public void detectedLanguage() {
String text = "朝、ピカチュウ";
TextLanguage.Request request = new TextLanguage.Request.Builder(text).build();
TextLanguage textLanguage = textClassifier.detectLanguage(request);
assertThat(textLanguage.getLocaleHypothesisCount()).isGreaterThan(0);
assertThat(textLanguage.getLocale(0).getLanguage()).isEqualTo("ja");
assertThat(textLanguage.getConfidenceScore(ULocale.JAPANESE)).isGreaterThan(0f);
}
@Test
public void suggestConversationActions() {
ConversationActions.Message message =
new ConversationActions.Message.Builder(ConversationActions.Message.PERSON_USER_OTHERS)
.setText("Check this out: https://www.android.com")
.build();
ConversationActions.Request request =
new ConversationActions.Request.Builder(ImmutableList.of(message)).build();
ConversationActions conversationActions = textClassifier.suggestConversationActions(request);
assertThat(conversationActions.getConversationActions()).hasSize(1);
ConversationAction conversationAction = conversationActions.getConversationActions().get(0);
assertThat(conversationAction.getType()).isEqualTo(ConversationAction.TYPE_OPEN_URL);
assertThat(conversationAction.getAction()).isNotNull();
}
/** A rule that manages a text classifier that is backed by the ExtServices. */
private static class ExtServicesTextClassifierRule extends ExternalResource {
private static final String CONFIG_TEXT_CLASSIFIER_SERVICE_PACKAGE_OVERRIDE =
"textclassifier_service_package_override";
private static final String PKG_NAME_GOOGLE_EXTSERVICES = "com.google.android.ext.services";
private static final String PKG_NAME_AOSP_EXTSERVICES = "android.ext.services";
private String textClassifierServiceOverrideFlagOldValue;
@Override
protected void before() {
UiAutomation uiAutomation = InstrumentationRegistry.getInstrumentation().getUiAutomation();
try {
uiAutomation.adoptShellPermissionIdentity();
textClassifierServiceOverrideFlagOldValue =
DeviceConfig.getString(
DeviceConfig.NAMESPACE_TEXTCLASSIFIER,
CONFIG_TEXT_CLASSIFIER_SERVICE_PACKAGE_OVERRIDE,
null);
DeviceConfig.setProperty(
DeviceConfig.NAMESPACE_TEXTCLASSIFIER,
CONFIG_TEXT_CLASSIFIER_SERVICE_PACKAGE_OVERRIDE,
getExtServicesPackageName(),
/* makeDefault= */ false);
} finally {
uiAutomation.dropShellPermissionIdentity();
}
}
@Override
protected void after() {
UiAutomation uiAutomation = InstrumentationRegistry.getInstrumentation().getUiAutomation();
try {
uiAutomation.adoptShellPermissionIdentity();
DeviceConfig.setProperty(
DeviceConfig.NAMESPACE_TEXTCLASSIFIER,
CONFIG_TEXT_CLASSIFIER_SERVICE_PACKAGE_OVERRIDE,
textClassifierServiceOverrideFlagOldValue,
/* makeDefault= */ false);
} finally {
uiAutomation.dropShellPermissionIdentity();
}
}
private static String getExtServicesPackageName() {
PackageManager packageManager =
ApplicationProvider.getApplicationContext().getPackageManager();
try {
packageManager.getApplicationInfo(PKG_NAME_GOOGLE_EXTSERVICES, /* flags= */ 0);
return PKG_NAME_GOOGLE_EXTSERVICES;
} catch (NameNotFoundException e) {
return PKG_NAME_AOSP_EXTSERVICES;
}
}
public TextClassifier getTextClassifier() {
TextClassificationManager textClassificationManager =
ApplicationProvider.getApplicationContext()
.getSystemService(TextClassificationManager.class);
return textClassificationManager.getTextClassifier();
}
}
}
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