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/*
* 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.content.res.cts;
import static com.google.common.truth.Truth.assertThat;
import static org.junit.Assert.fail;
import android.content.Context;
import android.content.cts.R;
import android.content.cts.util.XmlUtils;
import android.content.res.AssetFileDescriptor;
import android.content.res.AssetManager;
import android.content.res.Resources;
import android.content.res.XmlResourceParser;
import android.util.TypedValue;
import androidx.test.InstrumentationRegistry;
import androidx.test.filters.SmallTest;
import androidx.test.runner.AndroidJUnit4;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.HashSet;
@RunWith(AndroidJUnit4.class)
public class AssetManagerTest {
private AssetManager mAssets;
private Context mContext;
private Context getContext() {
return mContext;
}
@Before
public void setUp() throws Exception {
mContext = InstrumentationRegistry.getContext();
mAssets = mContext.getAssets();
}
@SmallTest
@Test
public void testAssetOperations() throws Exception {
final String fileName = "text.txt";
final String expect = "OneTwoThreeFourFiveSixSevenEightNineTen";
final TypedValue value = new TypedValue();
final Resources res = getContext().getResources();
res.getValue(R.raw.text, value, true);
InputStream inputStream = mAssets.open(fileName);
assertThat(inputStream).isNotNull();
assertContextEquals(expect, inputStream);
inputStream = mAssets.open(fileName, AssetManager.ACCESS_BUFFER);
assertThat(inputStream).isNotNull();
assertContextEquals(expect, inputStream);
AssetFileDescriptor assetFileDes = mAssets.openFd(fileName);
assertThat(assetFileDes).isNotNull();
assertContextEquals(expect, assetFileDes.createInputStream());
assetFileDes = mAssets.openNonAssetFd(value.string.toString());
assertThat(assetFileDes).isNotNull();
assertContextEquals(expect, assetFileDes.createInputStream());
assetFileDes = mAssets.openNonAssetFd(value.assetCookie, value.string.toString());
assertThat(assetFileDes).isNotNull();
assertContextEquals(expect, assetFileDes.createInputStream());
XmlResourceParser parser = mAssets.openXmlResourceParser("AndroidManifest.xml");
assertThat(parser).isNotNull();
XmlUtils.beginDocument(parser, "manifest");
parser = mAssets.openXmlResourceParser(0, "AndroidManifest.xml");
assertThat(parser).isNotNull();
beginDocument(parser, "manifest");
String[] files = mAssets.list("");
assertThat(files).isNotNull();
// We don't do an exact match because the framework can add asset files and this test
// would be too brittle.
assertThat(files).asList().containsAtLeast(fileName, "subdir");
files = mAssets.list("subdir");
assertThat(files).isNotNull();
assertThat(files).asList().contains("subdir_text.txt");
// This directory doesn't exist.
assertThat(mAssets.list("__foo__bar__dir__")).asList().isEmpty();
try {
mAssets.open("notExistFile.txt", AssetManager.ACCESS_BUFFER);
fail("test open(String, int) failed");
} catch (IOException e) {
// expected
}
try {
mAssets.openFd("notExistFile.txt");
fail("test openFd(String) failed");
} catch (IOException e) {
// expected
}
try {
mAssets.openNonAssetFd(0, "notExistFile.txt");
fail("test openNonAssetFd(int, String) failed");
} catch (IOException e) {
// expected
}
try {
mAssets.openXmlResourceParser(0, "notExistFile.txt");
fail("test openXmlResourceParser(int, String) failed");
} catch (IOException e) {
// expected
}
assertThat(mAssets.getLocales()).isNotNull();
}
@SmallTest
@Test
public void testClose() throws Exception {
final AssetManager assets = new AssetManager();
assets.close();
// Should no-op.
assets.close();
try {
assets.openXmlResourceParser("AndroidManifest.xml");
fail("Expected RuntimeException");
} catch (RuntimeException e) {
// Expected.
}
}
@SmallTest
@Test
public void testGetNonSystemLocales() {
// This is the list of locales built into this test package. It is basically the locales
// specified in the Android.mk files (assuming they have corresponding resources), plus the
// special cases for Filipino.
final String KNOWN_LOCALES[] = {
"cs",
"fil",
"fil-PH",
"fil-SA",
"fr",
"fr-FR",
"iw",
"iw-IL",
"kok",
"kok-419",
"kok-419-variant",
"kok-IN",
"kok-Knda",
"kok-Knda-419",
"kok-Knda-419-variant",
"kok-variant",
"mk",
"mk-MK",
"tgl",
"tgl-PH",
"tlh",
"xx",
"xx-YY"
};
final String PSEUDO_OR_EMPTY_LOCALES[] = {
"",
"en-XA",
"ar-XB"
};
String locales[] = mAssets.getNonSystemLocales();
HashSet<String> localesSet = new HashSet<String>(Arrays.asList(locales));
localesSet.removeAll(Arrays.asList(PSEUDO_OR_EMPTY_LOCALES));
assertThat(localesSet).containsExactlyElementsIn(Arrays.asList(KNOWN_LOCALES));
}
private void assertContextEquals(final String expect, final InputStream inputStream)
throws IOException {
try (final BufferedReader bf = new BufferedReader(new InputStreamReader(inputStream))) {
assertThat(bf.readLine()).isEqualTo(expect);
}
}
private void beginDocument(final XmlPullParser parser, final String firstElementName)
throws XmlPullParserException, IOException {
int type;
while ((type = parser.next()) != XmlPullParser.START_TAG) {
}
if (type != XmlPullParser.START_TAG) {
fail("No start tag found");
}
assertThat(firstElementName).isEqualTo(parser.getName());
}
}
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