| /* |
| * Copyright (C) 2013 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.internal.util; |
| |
| import android.test.suitebuilder.annotation.LargeTest; |
| import android.test.suitebuilder.annotation.SmallTest; |
| import android.util.Log; |
| import android.util.Xml; |
| |
| import junit.framework.TestCase; |
| |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlSerializer; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.nio.charset.StandardCharsets; |
| |
| /** |
| * Tests for {@link FastXmlSerializer} |
| */ |
| @SmallTest |
| public class FastXmlSerializerTest extends TestCase { |
| private static final String TAG = "FastXmlSerializerTest"; |
| |
| private static final boolean ENABLE_DUMP = false; // DO NOT SUBMIT WITH TRUE. |
| |
| private static final String ROOT_TAG = "root"; |
| private static final String ATTR = "attr"; |
| |
| public void testEmptyText() throws Exception { |
| final ByteArrayOutputStream stream = new ByteArrayOutputStream(); |
| |
| final XmlSerializer out = new FastXmlSerializer(); |
| out.setOutput(stream, "utf-8"); |
| out.startDocument(null, true); |
| out.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); |
| |
| out.startTag(null, "string"); |
| out.attribute(null, "name", "meow"); |
| out.text(""); |
| out.endTag(null, "string"); |
| |
| out.endDocument(); |
| |
| assertEquals("<?xml version='1.0' encoding='utf-8' standalone='yes' ?>\n" |
| + "<string name=\"meow\"></string>\n", stream.toString()); |
| } |
| |
| private boolean checkPreserved(String description, String str) { |
| boolean ok = true; |
| byte[] data; |
| try (final ByteArrayOutputStream baos = new ByteArrayOutputStream()) { |
| final XmlSerializer out = new FastXmlSerializer(); |
| out.setOutput(baos, StandardCharsets.UTF_16.name()); |
| out.startDocument(null, true); |
| |
| out.startTag(null, ROOT_TAG); |
| out.attribute(null, ATTR, str); |
| out.text(str); |
| out.endTag(null, ROOT_TAG); |
| |
| out.endDocument(); |
| baos.flush(); |
| data = baos.toByteArray(); |
| } catch (Exception e) { |
| Log.e(TAG, "Unable to serialize: " + description, e); |
| return false; |
| } |
| |
| if (ENABLE_DUMP) { |
| Log.d(TAG, "Dump:"); |
| Log.d(TAG, new String(data)); |
| } |
| |
| try (final ByteArrayInputStream baos = new ByteArrayInputStream(data)) { |
| XmlPullParser parser = Xml.newPullParser(); |
| parser.setInput(baos, StandardCharsets.UTF_16.name()); |
| |
| int type; |
| String tag = null; |
| while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) { |
| if (type == XmlPullParser.START_TAG) { |
| tag = parser.getName(); |
| if (ROOT_TAG.equals(tag)) { |
| String read = parser.getAttributeValue(null, ATTR); |
| if (!str.equals(read)) { |
| Log.e(TAG, "Attribute not preserved: " + description |
| + " input=\"" + str + "\", but read=\"" + read + "\""); |
| ok = false; |
| } |
| } |
| } |
| if (type == XmlPullParser.TEXT && ROOT_TAG.equals(tag)) { |
| String read = parser.getText(); |
| if (!str.equals(parser.getText())) { |
| Log.e(TAG, "Text not preserved: " + description |
| + " input=\"" + str + "\", but read=\"" + read + "\""); |
| ok = false; |
| } |
| } |
| } |
| } catch (Exception e) { |
| Log.e(TAG, "Unable to parse: " + description, e); |
| return false; |
| } |
| return ok; |
| } |
| |
| private boolean check(String description, String str) throws Exception { |
| boolean ok = false; |
| ok |= checkPreserved(description, str); |
| ok |= checkPreserved(description + " wrapped with spaces" ," " + str + " "); |
| return ok; |
| } |
| |
| @LargeTest |
| public void testAllCharacters() throws Exception { |
| boolean ok = true; |
| for (int i = 0; i < 0xffff; i++) { |
| if (0xd800 <= i && i <= 0xdfff) { |
| // Surrogate pair characters. |
| continue; |
| } |
| ok &= check("char: " + i, String.valueOf((char) i)); |
| } |
| // Dangling surrogate pairs. We can't preserve them. |
| assertFalse(check("+ud800", "\ud800")); |
| assertFalse(check("+udc00", "\udc00")); |
| |
| for (int i = 0xd800; i < 0xdc00; i ++) { |
| for (int j = 0xdc00; j < 0xe000; j++) { |
| ok &= check("char: " + i, String.valueOf((char) i) + String.valueOf((char) j)); |
| } |
| } |
| assertTrue("Some tests failed. See logcat for details.", ok); |
| } |
| } |