// Copyright 2015 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.android_webview.test;
import android.os.LocaleList;
import androidx.test.InstrumentationRegistry;
import androidx.test.filters.SmallTest;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.UseParametersRunnerFactory;
import org.chromium.android_webview.AwContents;
import org.chromium.android_webview.test.util.JSUtils;
import org.chromium.base.test.util.Feature;
import org.chromium.net.test.EmbeddedTestServer;
import java.util.Locale;
import java.util.regex.Pattern;
/** Tests for Accept Language implementation. */
@RunWith(Parameterized.class)
@UseParametersRunnerFactory(AwJUnit4ClassRunnerWithParameters.Factory.class)
public class AcceptLanguageTest extends AwParameterizedTest {
@Rule public AwActivityTestRule mActivityTestRule;
private TestAwContentsClient mContentsClient;
private AwContents mAwContents;
private EmbeddedTestServer mTestServer;
public AcceptLanguageTest(AwSettingsMutation param) {
this.mActivityTestRule = new AwActivityTestRule(param.getMutation());
}
@Before
public void setUp() {
mContentsClient = new TestAwContentsClient();
mAwContents =
mActivityTestRule
.createAwTestContainerViewOnMainSync(mContentsClient)
.getAwContents();
mTestServer =
EmbeddedTestServer.createAndStartServer(
InstrumentationRegistry.getInstrumentation().getContext());
}
private static final Pattern COMMA_AND_OPTIONAL_Q_VALUE =
Pattern.compile("(?:;q=[^,]+)?(?:,|$)");
/**
* Extract the languages from the Accept-Language header.
*
* The Accept-Language header can have more than one language along with optional quality
* factors for each, e.g.
*
* "de-DE,en-US;q=0.8,en-UK;q=0.5"
*
* This function extracts only the language strings from the Accept-Language header, so
* the example above would yield the following:
*
* ["de-DE", "en-US", "en-UK"]
*
* @param raw String containing the raw Accept-Language header
* @return A list of languages as Strings.
*/
private String[] getAcceptLanguages(String raw) {
return COMMA_AND_OPTIONAL_Q_VALUE.split(mActivityTestRule.maybeStripDoubleQuotes(raw));
}
private boolean isSingleLocale(String lang, String country) {
String languageTag = String.format("%s-%s", lang, country);
// In N+, multiple locales can be set.
return languageTag.equals(LocaleList.getDefault().toLanguageTags());
}
private void setSingleLocale(String lang, String country) {
LocaleList.setDefault(new LocaleList(new Locale(lang, country)));
}
private void setLocaleForTesting(String lang, String country) {
if (!isSingleLocale(lang, country)) {
setSingleLocale(lang, country);
mAwContents.updateDefaultLocale();
}
}
/** Verify that the Accept Language string is correct. */
@Test
@SmallTest
@Feature({"AndroidWebView"})
public void testAcceptLanguage() throws Throwable {
setLocaleForTesting("en", "US");
mActivityTestRule.getAwSettingsOnUiThread(mAwContents).setJavaScriptEnabled(true);
// This should yield a lightly formatted page with the contents of the Accept-Language
// header, e.g. "en-US" or "de-DE,en-US;q=0.8", as the only text content.
String url = mTestServer.getURL("/echoheader?Accept-Language");
mActivityTestRule.loadUrlSync(mAwContents, mContentsClient.getOnPageFinishedHelper(), url);
// Note that we extend the base language from language-region pair.
String rawAcceptLanguages =
mActivityTestRule.getJavaScriptResultBodyTextContent(mAwContents, mContentsClient);
Assert.assertTrue(
"Accept-Language header should contain at least 1 q-value",
rawAcceptLanguages.contains(";q="));
String[] acceptLanguages = getAcceptLanguages(rawAcceptLanguages);
Assert.assertArrayEquals(new String[] {"en-US", "en"}, acceptLanguages);
// Our accept language list in user agent is different from navigator.languages, which is
// fine.
String[] acceptLanguagesJs =
getAcceptLanguages(
JSUtils.executeJavaScriptAndWaitForResult(
InstrumentationRegistry.getInstrumentation(),
mAwContents,
mContentsClient.getOnEvaluateJavaScriptResultHelper(),
"navigator.languages.join(',')"));
Assert.assertArrayEquals(new String[] {"en-US"}, acceptLanguagesJs);
// Test locale change at run time
setLocaleForTesting("de", "DE");
mActivityTestRule.loadUrlSync(mAwContents, mContentsClient.getOnPageFinishedHelper(), url);
acceptLanguages =
getAcceptLanguages(
mActivityTestRule.getJavaScriptResultBodyTextContent(
mAwContents, mContentsClient));
// Note that we extend the base language from language-region pair, and we put en-US and en
// at the end.
Assert.assertArrayEquals(new String[] {"de-DE", "de", "en-US", "en"}, acceptLanguages);
}
/**
* Verify that the Accept Languages string is correct.
* When default locales do not contain "en-US" or "en-us",
* "en-US" should be added with lowest priority.
*/
@Test
@SmallTest
@Feature({"AndroidWebView"})
public void testAcceptLanguagesWithenUS() throws Throwable {
LocaleList.setDefault(new LocaleList(new Locale("ko", "KR")));
mAwContents.updateDefaultLocale();
mActivityTestRule.getAwSettingsOnUiThread(mAwContents).setJavaScriptEnabled(true);
// This should yield a lightly formatted page with the contents of the Accept-Language
// header, e.g. "en-US,en" or "de-DE,de,en-US,en;q=0.8", as the only text content.
String url = mTestServer.getURL("/echoheader?Accept-Language");
mActivityTestRule.loadUrlSync(mAwContents, mContentsClient.getOnPageFinishedHelper(), url);
// Note that we extend accept languages.
Assert.assertArrayEquals(
new String[] {"ko-KR", "ko", "en-US", "en"},
getAcceptLanguages(
mActivityTestRule.getJavaScriptResultBodyTextContent(
mAwContents, mContentsClient)));
// Our accept language list in user agent is different from navigator.languages, which is
// fine.
String[] acceptLanguagesJs =
getAcceptLanguages(
JSUtils.executeJavaScriptAndWaitForResult(
InstrumentationRegistry.getInstrumentation(),
mAwContents,
mContentsClient.getOnEvaluateJavaScriptResultHelper(),
"navigator.languages.join(',')"));
Assert.assertArrayEquals(new String[] {"ko-KR", "en-US"}, acceptLanguagesJs);
// Test locales that contain "en-US" change at run time
LocaleList.setDefault(new LocaleList(new Locale("de", "DE"), new Locale("en", "US")));
mAwContents.updateDefaultLocale();
mActivityTestRule.loadUrlSync(mAwContents, mContentsClient.getOnPageFinishedHelper(), url);
// Note that we extend the base language from language-region pair.
// Also, we put en-US at the lowest priority.
Assert.assertArrayEquals(
new String[] {"de-DE", "de", "en-US", "en"},
getAcceptLanguages(
mActivityTestRule.getJavaScriptResultBodyTextContent(
mAwContents, mContentsClient)));
// Test locales that contain "en-us" change at run time
LocaleList.setDefault(new LocaleList(new Locale("de", "DE"), new Locale("en", "us")));
mAwContents.updateDefaultLocale();
mActivityTestRule.loadUrlSync(mAwContents, mContentsClient.getOnPageFinishedHelper(), url);
Assert.assertArrayEquals(
new String[] {"de-DE", "de", "en-US", "en"},
getAcceptLanguages(
mActivityTestRule.getJavaScriptResultBodyTextContent(
mAwContents, mContentsClient)));
// Test locales that do not contain "en-us" or "en-US" change at run time
LocaleList.setDefault(new LocaleList(new Locale("de", "DE"), new Locale("ja", "JP")));
mAwContents.updateDefaultLocale();
mActivityTestRule.loadUrlSync(mAwContents, mContentsClient.getOnPageFinishedHelper(), url);
Assert.assertArrayEquals(
new String[] {"de-DE", "de", "ja-JP", "ja", "en-US", "en"},
getAcceptLanguages(
mActivityTestRule.getJavaScriptResultBodyTextContent(
mAwContents, mContentsClient)));
}
}
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