/*
 * Copyright (C) 2011 The Android Open Source Project
 *
 * Licensed under the Eclipse Public License, Version 1.0 (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.eclipse.org/org/documents/epl-v10.php
 *
 * 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.ide.eclipse.adt.internal.editors.formatting;

import com.android.ide.eclipse.adt.internal.editors.layout.gle2.DomUtilities;
import com.android.ide.eclipse.adt.internal.preferences.AdtPrefs;

import org.eclipse.jface.preference.PreferenceStore;
import org.eclipse.wst.sse.core.internal.provisional.IStructuredModel;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMModel;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

import junit.framework.TestCase;

@SuppressWarnings({
    "javadoc", "restriction"
})
public class XmlPrettyPrinterTest extends TestCase {
    @Override
    protected void setUp() throws Exception {
        super.setUp();
        PreferenceStore store = new PreferenceStore();
        AdtPrefs.init(store);
        AdtPrefs prefs = AdtPrefs.getPrefs();
        prefs.initializeStoreWithDefaults(store);
        prefs.loadValues(null);
        XmlFormatPreferences formatPrefs = XmlFormatPreferences.create();
        assertTrue(formatPrefs.oneAttributeOnFirstLine);
    }

    private void checkFormat(XmlFormatPreferences prefs, String baseLocation,
            String xml,
            String expected, String delimiter, String startNodeName,
            boolean openTagOnly, String endNodeName) throws Exception {

        IStructuredModel model = DomUtilities.createStructuredModel(xml);
        assertNotNull(model);
        model.setBaseLocation(baseLocation);
        Document document = null;
        if (model instanceof IDOMModel) {
            IDOMModel domModel = (IDOMModel) model;
            document = domModel.getDocument();
        } else {
            fail("Can't get DOM model");
            return;
        }
        XmlFormatStyle style = AndroidXmlFormattingStrategy.guessStyle(model, document);

        XmlPrettyPrinter printer = new XmlPrettyPrinter(prefs, style, delimiter);

        StringBuilder sb = new StringBuilder(1000);
        Node startNode = document;
        Node endNode = document;
        if (startNodeName != null) {
            startNode = findNode(document.getDocumentElement(), startNodeName);
        }
        if (endNodeName != null) {
            endNode = findNode(document.getDocumentElement(), endNodeName);
        }

        printer.prettyPrint(-1, document, startNode, endNode, sb, false/*openTagOnly*/);
        String formatted = sb.toString();
        if (!expected.equals(formatted)) {
            System.out.println(formatted);
        }
        assertEquals(expected, formatted);
    }

    private Node findNode(Node node, String nodeName) {
        if (node.getNodeName().equals(nodeName)) {
            return node;
        }

        NodeList children = node.getChildNodes();
        for (int i = 0, n = children.getLength(); i < n; i++) {
            Node child = children.item(i);
            Node result = findNode(child, nodeName);
            if (result != null) {
                return result;
            }
        }

        return null;
    }

    protected int getCaretOffset(String fileContent, String caretLocation) {
        int caretDelta = caretLocation.indexOf("^"); //$NON-NLS-1$
        assertTrue(caretLocation, caretDelta != -1);

        String caretContext = caretLocation.substring(0, caretDelta)
                + caretLocation.substring(caretDelta + 1); // +1: skip "^"
        int caretContextIndex = fileContent.indexOf(caretContext);
        assertTrue("Caret content " + caretContext + " not found in file",
                caretContextIndex != -1);
        return caretContextIndex + caretDelta;
    }

    private void checkFormat(XmlFormatPreferences prefs, String baseLocation, String xml,
            String expected, String delimiter) throws Exception {
        checkFormat(prefs, baseLocation, xml, expected, delimiter, null, false, null);
    }

    private void checkFormat(XmlFormatPreferences prefs, String baseLocation, String xml,
            String expected) throws Exception {
        checkFormat(prefs, baseLocation, xml, expected, "\n"); //$NON-NLS-1$
    }
    private void checkFormat(String baseLocation, String xml, String expected)
            throws Exception {
        XmlFormatPreferences prefs = XmlFormatPreferences.create();
        checkFormat(prefs, baseLocation, xml, expected);
    }

    public void testLayout1() throws Exception {
        checkFormat(
                "res/layout-port/layout1.xml",
                "<LinearLayout><Button></Button></LinearLayout>",

                "<LinearLayout>\n" +
                "\n" +
                "    <Button>\n" +
                "    </Button>\n" +
                "\n" +
                "</LinearLayout>");
    }

    public void testLayout2() throws Exception {
        checkFormat(
                "res/layout-port/layout2.xml",
                "<LinearLayout><Button foo=\"bar\"></Button></LinearLayout>",

                "<LinearLayout>\n" +
                "\n" +
                "    <Button foo=\"bar\" >\n" +
                "    </Button>\n" +
                "\n" +
                "</LinearLayout>");
    }

    public void testLayout3() throws Exception {
        XmlFormatPreferences prefs = XmlFormatPreferences.create();
        prefs.oneAttributeOnFirstLine = true;
        checkFormat(
                prefs, "res/layout-land/layout3.xml",
                "<LinearLayout><Button foo=\"bar\"></Button></LinearLayout>",

                "<LinearLayout>\n" +
                "\n" +
                "    <Button foo=\"bar\" >\n" +
                "    </Button>\n" +
                "\n" +
                "</LinearLayout>");
    }

    public void testClosedElements() throws Exception {
        checkFormat(
                "res/values/strings.xml",
                "<resources>\n" +
                "<item   name=\"title_container\"  type=\"id\"   />\n" +
                "<item name=\"title_logo\" type=\"id\"/>\n" +
                "</resources>\n",

                "<resources>\n" +
                "\n" +
                "    <item name=\"title_container\" type=\"id\"/>\n" +
                "    <item name=\"title_logo\" type=\"id\"/>\n" +
                "\n" +
                "</resources>");
    }

    public void testResources() throws Exception {
        checkFormat(
                "res/values-us/strings.xml",
                "<resources><item name=\"foo\">Text value here </item></resources>",
                "<resources>\n\n" +
                "    <item name=\"foo\">Text value here </item>\n" +
                "\n</resources>");
    }

    public void testNodeTypes() throws Exception {
        // Ensures that a document with all kinds of node types is serialized correctly
        checkFormat(
                "res/layout-xlarge/layout.xml",
                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<!--\n" +
                "/**\n" +
                " * Licensed under the Apache License, Version 2.0 (the \"License\");\n" +
                " */\n" +
                "-->\n" +
                "<!DOCTYPE metadata [\n" +
                "<!ELEMENT metadata (category)*>\n" +
                "<!ENTITY % ISOLat2\n" +
                "         SYSTEM \"http://www.xml.com/iso/isolat2-xml.entities\" >\n" +
                "]>\n" +
                "<LinearLayout\n" +
                "    xmlns:android=\"http://schemas.android.com/apk/res/android\"\n" +
                "    android:orientation=\"vertical\">\n" +
                "<![CDATA[\n" +
                "This is character data!\n" +
                "<!-- This is not a comment! -->\n" +
                "and <this is not an element>\n" +
                "]]>         \n" +
                "This is text: &lt; and &amp;\n" +
                "<!-- comment 1 \"test\"... -->\n" +
                "<!-- ... comment2 -->\n" +
                "%ISOLat2;        \n" +
                "<!-- \n" +
                "Type <key>less-than</key> (&#x3C;)\n" +
                "-->        \n" +
                "</LinearLayout>",

                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<!--\n" +
                "/**\n" +
                " * Licensed under the Apache License, Version 2.0 (the \"License\");\n" +
                " */\n" +
                "-->\n" +
                "<!DOCTYPE metadata [\n" +
                "<!ELEMENT metadata (category)*>\n" +
                "<!ENTITY % ISOLat2\n" +
                "         SYSTEM \"http://www.xml.com/iso/isolat2-xml.entities\" >\n" +
                "]>\n" +
                "<LinearLayout xmlns:android=\"http://schemas.android.com/apk/res/android\"\n" +
                "    android:orientation=\"vertical\" >\n" +
                "<![CDATA[\n" +
                "This is character data!\n" +
                "<!-- This is not a comment! -->\n" +
                "and <this is not an element>\n" +
                "]]>\n" +
                "This is text: &lt; and &amp;\n" +
                "    <!-- comment 1 \"test\"... -->\n" +
                "    <!-- ... comment2 -->\n" +
                "%ISOLat2;        \n" +
                "<!-- Type <key>less-than</key> (&#x3C;) -->\n" +
                "\n" +
                "</LinearLayout>");
    }

    public void testWindowsDelimiters() throws Exception {
        checkFormat(
                XmlFormatPreferences.create(), "res/layout-xlarge/layout.xml",
                "<LinearLayout><Button foo=\"bar\"></Button></LinearLayout>",

                "<LinearLayout>\r\n" +
                "\r\n" +
                "    <Button foo=\"bar\" >\r\n" +
                "    </Button>\r\n" +
                "\r\n" +
                "</LinearLayout>",
                "\r\n");
    }

    public void testRemoveBlanklines() throws Exception {
        XmlFormatPreferences prefs = XmlFormatPreferences.create();
        prefs.removeEmptyLines = true;
        checkFormat(
                prefs, "res/layout-xlarge/layout.xml",
                "<foo><bar><baz1></baz1><baz2></baz2></bar><bar2></bar2><bar3><baz12></baz12></bar3></foo>",

                "<foo>\n" +
                "    <bar>\n" +
                "        <baz1>\n" +
                "        </baz1>\n" +
                "        <baz2>\n" +
                "        </baz2>\n" +
                "    </bar>\n" +
                "    <bar2>\n" +
                "    </bar2>\n" +
                "    <bar3>\n" +
                "        <baz12>\n" +
                "        </baz12>\n" +
                "    </bar3>\n" +
                "</foo>");
    }

    public void testRange() throws Exception {
        checkFormat(
                XmlFormatPreferences.create(), "res/layout-xlarge/layout.xml",
                "<LinearLayout><Button foo=\"bar\"></Button><CheckBox/></LinearLayout>",
                "\n" +
                "    <Button foo=\"bar\" >\n" +
                "    </Button>\n" +
                "\n" +
                "    <CheckBox />\n",
                "\n",
                "Button", false, "CheckBox");
    }

    public void testOpenTagOnly() throws Exception {
        checkFormat(
                XmlFormatPreferences.create(), "res/layout-xlarge/layout.xml",
                "<LinearLayout><Button foo=\"bar\"></Button><CheckBox/></LinearLayout>",
                "\n" +
                "    <Button foo=\"bar\" >\n" +
                "    </Button>\n",
                "\n",

                "Button", true, "Button");
    }

    public void testRange2() throws Exception {
        XmlFormatPreferences prefs = XmlFormatPreferences.create();
        prefs.removeEmptyLines = true;
        checkFormat(
                prefs, "res/layout-xlarge/layout.xml",
                "<foo><bar><baz1></baz1><baz2></baz2></bar><bar2></bar2><bar3><baz12></baz12></bar3></foo>",

                "        <baz1>\n" +
                "        </baz1>\n" +
                "        <baz2>\n" +
                "        </baz2>\n" +
                "    </bar>\n" +
                "    <bar2>\n" +
                "    </bar2>\n" +
                "    <bar3>\n" +
                "        <baz12>\n" +
                "        </baz12>\n",

                "\n",
                "baz1", false, "baz12");
    }

    public void testEOLcomments() throws Exception {
        checkFormat(
                "res/drawable-mdpi/states.xml",
                "<selector xmlns:android=\"http://schemas.android.com/apk/res/android\">\n" +
                "    <item android:state_pressed=\"true\"\n" +
                "          android:color=\"#ffff0000\"/> <!-- pressed -->\n" +
                "    <item android:state_focused=\"true\"\n" +
                "          android:color=\"#ff0000ff\"/> <!-- focused -->\n" +
                "    <item android:color=\"#ff000000\"/> <!-- default -->\n" +
                "</selector>",
                "<selector xmlns:android=\"http://schemas.android.com/apk/res/android\">\n" +
                "\n" +
                "    <item android:state_pressed=\"true\" android:color=\"#ffff0000\"/> <!-- pressed -->\n" +
                "    <item android:state_focused=\"true\" android:color=\"#ff0000ff\"/> <!-- focused -->\n" +
                "    <item android:color=\"#ff000000\"/> <!-- default -->\n" +
                "\n" +
                "</selector>");
    }

    public void testFormatColorList() throws Exception {
        checkFormat(
                "res/drawable-hdpi/states.xml",
                "<selector xmlns:android=\"http://schemas.android.com/apk/res/android\">\n" +
                "<item android:state_activated=\"true\" android:color=\"#FFFFFF\"/>\n" +
                "<item android:color=\"#777777\" /> <!-- not selected -->\n" +
                "</selector>",
                "<selector xmlns:android=\"http://schemas.android.com/apk/res/android\">\n" +
                "\n" +
                "    <item android:state_activated=\"true\" android:color=\"#FFFFFF\"/>\n" +
                "    <item android:color=\"#777777\"/> <!-- not selected -->\n" +
                "\n" +
                "</selector>");
    }

    public void testPreserveNewlineAfterComment() throws Exception {
        checkFormat(
                "res/values/dimen.xml",
                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<resources><dimen name=\"colorstrip_height\">6dip</dimen>\n" +
                "    <!-- comment1 --><dimen name=\"title_height\">45dip</dimen>\n" +
                "\n" +
                "    <!-- comment2: newline above --><dimen name=\"now_playing_height\">90dip</dimen>\n" +
                "    <dimen name=\"text_size_small\">14sp</dimen>\n" +
                "\n" +
                "\n" +
                "    <!-- comment3: newline above and below -->\n" +
                "\n" +
                "\n" +
                "\n" +
                "    <dimen name=\"text_size_medium\">18sp</dimen><dimen name=\"text_size_large\">22sp</dimen>\n" +
                "</resources>",
                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<resources>\n" +
                "\n" +
                "    <dimen name=\"colorstrip_height\">6dip</dimen>\n" +
                "    <!-- comment1 -->\n" +
                "    <dimen name=\"title_height\">45dip</dimen>\n" +
                "\n" +
                "    <!-- comment2: newline above -->\n" +
                "    <dimen name=\"now_playing_height\">90dip</dimen>\n" +
                "    <dimen name=\"text_size_small\">14sp</dimen>\n" +
                "\n" +
                "    <!-- comment3: newline above and below -->\n" +
                "\n" +
                "    <dimen name=\"text_size_medium\">18sp</dimen>\n" +
                "    <dimen name=\"text_size_large\">22sp</dimen>\n" +
                "\n" +
                "</resources>");
    }

    public void testPlurals() throws Exception {
        checkFormat(
                "res/values-us/strings.xml",
                "<resources xmlns:xliff=\"urn:oasis:names:tc:xliff:document:1.2\">\n" +
                "<string name=\"toast_sync_error\">Sync error: <xliff:g id=\"error\">%1$s</xliff:g></string>\n" +
                "<string name=\"session_subtitle\"><xliff:g id=\"time\">%1$s</xliff:g> in <xliff:g id=\"room\">%2$s</xliff:g></string>\n" +
                "<plurals name=\"now_playing_countdown\">\n" +
                "<item quantity=\"zero\"><xliff:g id=\"remaining_time\">%2$s</xliff:g></item>\n" +
                "<item quantity=\"one\"><xliff:g id=\"number_of_days\">%1$s</xliff:g> day, <xliff:g id=\"remaining_time\">%2$s</xliff:g></item>\n" +
                "<item quantity=\"other\"><xliff:g id=\"number_of_days\">%1$s</xliff:g> days, <xliff:g id=\"remaining_time\">%2$s</xliff:g></item>\n" +
                "</plurals>\n" +
                "</resources>",
                "<resources xmlns:xliff=\"urn:oasis:names:tc:xliff:document:1.2\">\n" +
                "\n" +
                "    <string name=\"toast_sync_error\">Sync error: <xliff:g id=\"error\">%1$s</xliff:g></string>\n" +
                "    <string name=\"session_subtitle\"><xliff:g id=\"time\">%1$s</xliff:g> in <xliff:g id=\"room\">%2$s</xliff:g></string>\n" +
                "\n" +
                "    <plurals name=\"now_playing_countdown\">\n" +
                "        <item quantity=\"zero\"><xliff:g id=\"remaining_time\">%2$s</xliff:g></item>\n" +
                "        <item quantity=\"one\"><xliff:g id=\"number_of_days\">%1$s</xliff:g> day, <xliff:g id=\"remaining_time\">%2$s</xliff:g></item>\n" +
                "        <item quantity=\"other\"><xliff:g id=\"number_of_days\">%1$s</xliff:g> days, <xliff:g id=\"remaining_time\">%2$s</xliff:g></item>\n" +
                "    </plurals>\n" +
                "\n" +
                "</resources>");
    }

    public void testMultiAttributeResource() throws Exception {
        checkFormat(
                "res/values-us/strings.xml",
                "<resources><string name=\"debug_enable_debug_logging_label\" translatable=\"false\">Enable extra debug logging?</string></resources>",
                "<resources>\n" +
                "\n" +
                "    <string name=\"debug_enable_debug_logging_label\" translatable=\"false\">Enable extra debug logging?</string>\n" +
                "\n" +
                "</resources>");
    }

    public void testMultilineCommentAlignment() throws Exception {
        checkFormat(
                "res/values-us/strings.xml",
                "<resources>" +
                "    <!-- Deprecated strings - Move the identifiers to this section, mark as DO NOT TRANSLATE,\n" +
                "         and remove the actual text.  These will be removed in a bulk operation. -->\n" +
                "    <!-- Do Not Translate.  Unused string. -->\n" +
                "    <string name=\"meeting_invitation\"></string>\n" +
                "</resources>",
                "<resources>\n" +
                "\n" +
                "    <!--\n" +
                "         Deprecated strings - Move the identifiers to this section, mark as DO NOT TRANSLATE,\n" +
                "         and remove the actual text.  These will be removed in a bulk operation.\n" +
                "    -->\n" +
                "    <!-- Do Not Translate.  Unused string. -->\n" +
                "    <string name=\"meeting_invitation\"></string>\n" +
                "\n" +
                "</resources>");
    }

    public void testLineCommentSpacing() throws Exception {
        checkFormat(
                "res/values-us/strings.xml",
                "<resources>\n" +
                "\n" +
                "    <dimen name=\"colorstrip_height\">6dip</dimen>\n" +
                "    <!-- comment1 -->\n" +
                "    <dimen name=\"title_height\">45dip</dimen>\n" +
                "    <!-- comment2: no newlines -->\n" +
                "    <dimen name=\"now_playing_height\">90dip</dimen>\n" +
                "    <dimen name=\"text_size_small\">14sp</dimen>\n" +
                "\n" +
                "    <!-- comment3: newline above and below -->\n" +
                "\n" +
                "    <dimen name=\"text_size_medium\">18sp</dimen>\n" +
                "    <dimen name=\"text_size_large\">22sp</dimen>\n" +
                "\n" +
                "</resources>",
                "<resources>\n" +
                "\n" +
                "    <dimen name=\"colorstrip_height\">6dip</dimen>\n" +
                "    <!-- comment1 -->\n" +
                "    <dimen name=\"title_height\">45dip</dimen>\n" +
                "    <!-- comment2: no newlines -->\n" +
                "    <dimen name=\"now_playing_height\">90dip</dimen>\n" +
                "    <dimen name=\"text_size_small\">14sp</dimen>\n" +
                "\n" +
                "    <!-- comment3: newline above and below -->\n" +
                "\n" +
                "    <dimen name=\"text_size_medium\">18sp</dimen>\n" +
                "    <dimen name=\"text_size_large\">22sp</dimen>\n" +
                "\n" +
                "</resources>");
    }

    public void testCommentHandling() throws Exception {
        checkFormat(
                XmlFormatPreferences.create(), "res/layout/layout1.xml",
                "<foo >\n" +
                "\n" +
                "    <!-- abc\n" +
                "         def\n" +
                "         ghi -->\n" +
                "\n" +
                "    <!-- abc\n" +
                "    def\n" +
                "    ghi -->\n" +
                "    \n" +
                "<!-- abc\n" +
                "def\n" +
                "ghi -->\n" +
                "\n" +
                "</foo>",

                "<foo>\n" +
                "\n" +
                "    <!--\n" +
                "         abc\n" +
                "         def\n" +
                "         ghi\n" +
                "    -->\n" +
                "\n" +
                "\n" +
                "    <!--\n" +
                "    abc\n" +
                "    def\n" +
                "    ghi\n" +
                "    -->\n" +
                "\n" +
                "\n" +
                "    <!--\n" +
                "abc\n" +
                "def\n" +
                "ghi\n" +
                "    -->\n" +
                "\n" +
                "</foo>");
    }

    public void testCommentHandling2() throws Exception {
        checkFormat(
                XmlFormatPreferences.create(), "res/layout-xlarge/layout.xml",
                "<foo >\n" +
                "    <!-- multi -->\n" +
                "\n" +
                "    <bar />\n" +
                "</foo>",

                "<foo>\n" +
                "\n" +
                "    <!-- multi -->\n" +
                "\n" +
                "    <bar />\n" +
                "\n" +
                "</foo>");
    }

    public void testMenus1() throws Exception {
        checkFormat(
                XmlFormatPreferences.create(), "res/menu/menu1.xml",
                // http://code.google.com/p/android/issues/detail?id=21383
                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<menu xmlns:android=\"http://schemas.android.com/apk/res/android\" >\n" +
                "\n" +
                "    <item\n" +
                "        android:id=\"@+id/menu_debug\"\n" +
                "        android:icon=\"@android:drawable/ic_menu_more\"\n" +
                "        android:showAsAction=\"ifRoom|withText\"\n" +
                "        android:title=\"@string/menu_debug\">\n" +
                "    \n" +
                "        <menu>\n" +
                "                <item\n" +
                "                    android:id=\"@+id/menu_debug_clearCache_memory\"\n" +
                "                    android:icon=\"@android:drawable/ic_menu_delete\"\n" +
                "                    android:showAsAction=\"ifRoom|withText\"\n" +
                "                    android:title=\"@string/menu_debug_clearCache_memory\"/>\n" +
                "    \n" +
                "                <item\n" +
                "                    android:id=\"@+id/menu_debug_clearCache_file\"\n" +
                "                    android:icon=\"@android:drawable/ic_menu_delete\"\n" +
                "                    android:showAsAction=\"ifRoom|withText\"\n" +
                "                    android:title=\"@string/menu_debug_clearCache_file\"/>\n" +
                "        </menu>\n" +
                "    </item>\n" +
                "</menu>",

                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<menu xmlns:android=\"http://schemas.android.com/apk/res/android\" >\n" +
                "\n" +
                "    <item\n" +
                "        android:id=\"@+id/menu_debug\"\n" +
                "        android:icon=\"@android:drawable/ic_menu_more\"\n" +
                "        android:showAsAction=\"ifRoom|withText\"\n" +
                "        android:title=\"@string/menu_debug\">\n" +
                "        <menu>\n" +
                "            <item\n" +
                "                android:id=\"@+id/menu_debug_clearCache_memory\"\n" +
                "                android:icon=\"@android:drawable/ic_menu_delete\"\n" +
                "                android:showAsAction=\"ifRoom|withText\"\n" +
                "                android:title=\"@string/menu_debug_clearCache_memory\"/>\n" +
                "            <item\n" +
                "                android:id=\"@+id/menu_debug_clearCache_file\"\n" +
                "                android:icon=\"@android:drawable/ic_menu_delete\"\n" +
                "                android:showAsAction=\"ifRoom|withText\"\n" +
                "                android:title=\"@string/menu_debug_clearCache_file\"/>\n" +
                "        </menu>\n" +
                "    </item>\n" +
                "\n" +
                "</menu>");
    }

    public void testMenus2() throws Exception {
        XmlFormatPreferences prefs = XmlFormatPreferences.create();
        prefs.removeEmptyLines = true;
        checkFormat(
                prefs, "res/drawable-hdpi/layerlist.xml",
                // http://code.google.com/p/android/issues/detail?id=21346
                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<layer-list xmlns:android=\"http://schemas.android.com/apk/res/android\">\n" +
                "  <item>\n" +
                "    <shape android:shape=\"rectangle\">\n" +
                "      <stroke\n" +
                "        android:width=\"1dip\"\n" +
                "        android:color=\"@color/line_separator\"/>\n" +
                "      <solid android:color=\"@color/event_header_background\"/>\n" +
                "    </shape>\n" +
                "  </item>\n" +
                "  <item\n" +
                "    android:bottom=\"1dip\"\n" +
                "    android:top=\"1dip\">\n" +
                "    <shape android:shape=\"rectangle\">\n" +
                "      <stroke\n" +
                "        android:width=\"1dip\"\n" +
                "        android:color=\"@color/event_header_background\"/>\n" +
                "      <solid android:color=\"@color/transparent\"/>\n" +
                "    </shape>\n" +
                "  </item>\n" +
                "</layer-list>",
                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<layer-list xmlns:android=\"http://schemas.android.com/apk/res/android\" >\n" +
                "    <item>\n" +
                "        <shape android:shape=\"rectangle\" >\n" +
                "            <stroke\n" +
                "                android:width=\"1dip\"\n" +
                "                android:color=\"@color/line_separator\" />\n" +
                "            <solid android:color=\"@color/event_header_background\" />\n" +
                "        </shape>\n" +
                "    </item>\n" +
                "    <item\n" +
                "        android:bottom=\"1dip\"\n" +
                "        android:top=\"1dip\">\n" +
                "        <shape android:shape=\"rectangle\" >\n" +
                "            <stroke\n" +
                "                android:width=\"1dip\"\n" +
                "                android:color=\"@color/event_header_background\" />\n" +
                "            <solid android:color=\"@color/transparent\" />\n" +
                "        </shape>\n" +
                "    </item>\n" +
                "</layer-list>");
    }

    public void testMenus3() throws Exception {
        checkFormat(
                XmlFormatPreferences.create(), "res/menu/menu1.xml",
                // http://code.google.com/p/android/issues/detail?id=21227
                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<menu xmlns:android=\"http://schemas.android.com/apk/res/android\" >\n" +
                "\n" +
                "    <item\n" +
                "        android:icon=\"@android:drawable/ic_menu_more\"\n" +
                "        android:title=\"@string/account_list_menu_more\">\n" +
                "        <menu>\n" +
                "            <item\n" +
                "                android:id=\"@+id/account_list_menu_backup_restore\"\n" +
                "                android:icon=\"@android:drawable/ic_menu_save\"\n" +
                "                android:title=\"@string/account_list_menu_backup_restore\"/>\n" +
                "        </menu>\n" +
                "    </item>\n" +
                "\n" +
                "</menu>",

                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<menu xmlns:android=\"http://schemas.android.com/apk/res/android\" >\n" +
                "\n" +
                "    <item\n" +
                "        android:icon=\"@android:drawable/ic_menu_more\"\n" +
                "        android:title=\"@string/account_list_menu_more\">\n" +
                "        <menu>\n" +
                "            <item\n" +
                "                android:id=\"@+id/account_list_menu_backup_restore\"\n" +
                "                android:icon=\"@android:drawable/ic_menu_save\"\n" +
                "                android:title=\"@string/account_list_menu_backup_restore\"/>\n" +
                "        </menu>\n" +
                "    </item>\n" +
                "\n" +
                "</menu>");

    }

    public void testColors1() throws Exception {
        checkFormat(
                XmlFormatPreferences.create(), "res/values/colors.xml",
                "<resources>\n" +
                "  <color name=\"enrollment_error\">#99e21f14</color>\n" +
                "\n" +
                "  <color name=\"service_starting_up\">#99000000</color>\n" +
                "</resources>",

                "<resources>\n" +
                "\n" +
                "    <color name=\"enrollment_error\">#99e21f14</color>\n" +
                "    <color name=\"service_starting_up\">#99000000</color>\n" +
                "\n" +
                "</resources>");
    }

    public void testEclipseFormatStyle1() throws Exception {
        XmlFormatPreferences prefs = new XmlFormatPreferences() {
            @Override
            public String getOneIndentUnit() {
                return "\t";
            }

            @Override
            public int getTabWidth() {
                return 8;
            }
        };
        checkFormat(
                prefs, "res/values/colors.xml",
                "<resources>\n" +
                "  <color name=\"enrollment_error\">#99e21f14</color>\n" +
                "\n" +
                "  <color name=\"service_starting_up\">#99000000</color>\n" +
                "</resources>",

                "<resources>\n" +
                "\n" +
                "\t<color name=\"enrollment_error\">#99e21f14</color>\n" +
                "\t<color name=\"service_starting_up\">#99000000</color>\n" +
                "\n" +
                "</resources>");
    }

    public void testEclipseFormatStyle2() throws Exception {
        XmlFormatPreferences prefs = new XmlFormatPreferences() {
            @Override
            public String getOneIndentUnit() {
                return "  ";
            }

            @Override
            public int getTabWidth() {
                return 2;
            }
        };
        prefs.useEclipseIndent = true;
        checkFormat(
                prefs, "res/values/colors.xml",
                "<resources>\n" +
                "  <color name=\"enrollment_error\">#99e21f14</color>\n" +
                "\n" +
                "  <color name=\"service_starting_up\">#99000000</color>\n" +
                "</resources>",

                "<resources>\n" +
                "\n" +
                "  <color name=\"enrollment_error\">#99e21f14</color>\n" +
                "  <color name=\"service_starting_up\">#99000000</color>\n" +
                "\n" +
                "</resources>");
    }

    public void testNameSorting() throws Exception {
        checkFormat(
                "res/values/dimen.xml",
                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<resources>\n" +
                "    <attr format=\"integer\" name=\"no\" />\n" +
                "</resources>",

                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<resources>\n" +
                "\n" +
                "    <attr name=\"no\" format=\"integer\" />\n" +
                "\n" +
                "</resources>");
    }

    public void testStableText() throws Exception {
        checkFormat(
                "res/layout/stable.xml",
                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<LinearLayout xmlns:android=\"http://schemas.android.com/apk/res/android\"\n" +
                "    android:layout_width=\"match_parent\"\n" +
                "    android:layout_height=\"match_parent\"\n" +
                "    android:orientation=\"vertical\">\n" +
                "    Hello World\n" +
                "\n" +
                "</LinearLayout>",

                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<LinearLayout xmlns:android=\"http://schemas.android.com/apk/res/android\"\n" +
                "    android:layout_width=\"match_parent\"\n" +
                "    android:layout_height=\"match_parent\"\n" +
                "    android:orientation=\"vertical\" >\n" +
                "    Hello World\n" +
                "\n" +
                "</LinearLayout>");
    }

    public void testResources1() throws Exception {
        checkFormat(
                "res/values/strings.xml",
                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<resources>\n" +
                "\n" +
                "        <string name=\"test_string\">a\n" +
                "                </string>\n" +
                "\n" +
                "</resources>",

                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<resources>\n" +
                "\n" +
                "    <string name=\"test_string\">a</string>\n" +
                "\n" +
                "</resources>");
    }

    public void testMarkup() throws Exception {
        checkFormat(
                "res/values/strings.xml",
                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<resources>\n" +
                "\n" +
                "<string name=\"welcome\">Welcome to <b>Android</b>!</string>" +
                "<string name=\"glob_settings_top_text\"><b>To install a 24 Clock Widget, " +
                "please <i>long press</i> in Home Screen.</b> Configure the Global Settings " +
                "here.</string>" +
                "" +
                "\n" +
                "</resources>",

                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<resources>\n" +
                "\n" +
                "    <string name=\"welcome\">Welcome to <b>Android</b>!</string>\n" +
                "    <string name=\"glob_settings_top_text\"><b>To install a 24 Clock Widget, " +
                "please <i>long press</i> in Home Screen.</b> Configure the Global Settings " +
                "here.</string>\n" +
                "\n" +
                "</resources>");
    }

    public void testPreserveEntities() throws Exception {
        // Ensure that entities such as &gt; in the input string are preserved in the output
        // format
        checkFormat(
                "res/values/strings.xml",
                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<resources><string name=\"untitled\">&lt;untitled2></string>\n" +
                "<string name=\"untitled2\">&lt;untitled2&gt;</string>\n" +
                "<string name=\"untitled3\">&apos;untitled3&quot;</string></resources>\n",

                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<resources>\n" +
                "\n" +
                "    <string name=\"untitled\">&lt;untitled2></string>\n" +
                "    <string name=\"untitled2\">&lt;untitled2&gt;</string>\n" +
                "    <string name=\"untitled3\">&apos;untitled3&quot;</string>\n" +
                "\n" +
                "</resources>");
    }

    public void testCData1() throws Exception {
        checkFormat(
                "res/values/strings.xml",
                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<resources>\n" +
                "    <string name=\"foo\"><![CDATA[bar]]></string>\n" +
                "</resources>",

                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<resources>\n" +
                "\n" +
                "    <string name=\"foo\"><![CDATA[bar]]></string>\n" +
                "\n" +
                "</resources>");
    }

    public void testCData2() throws Exception {
        checkFormat(
                "res/values/strings.xml",
                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<resources>\n" +
                "    <string name=\"foo1\"><![CDATA[bar1\n" +
                "bar2\n" +
                "bar3]]></string>\n" +
                "    <string name=\"foo2\"><![CDATA[bar]]></string>\n" +
                "</resources>",

                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<resources>\n" +
                "\n" +
                "    <string name=\"foo1\">\n" +
                "<![CDATA[bar1\n" +
                "bar2\n" +
                "bar3]]>\n" +
                "    </string>\n" +
                "    <string name=\"foo2\"><![CDATA[bar]]></string>\n" +
                "\n" +
                "</resources>");
    }

    public void testComplexString() throws Exception {
        checkFormat(
                "res/values/strings.xml",
                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<resources>\n" +
                "<string name=\"progress_completed_export_all\">The database has " +
                "<b>successfully</b> been exported into: <br /><br /><font size=\"14\">" +
                "\\\"<i>%s</i>\\\"</font></string>" +
                "</resources>",

                "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
                "<resources>\n" +
                "\n" +
                "    <string name=\"progress_completed_export_all\">The database has " +
                "<b>successfully</b> been exported into: <br /><br /><font size=\"14\">" +
                "\\\"<i>%s</i>\\\"</font></string>\n" +
                "\n" +
                "</resources>");
    }

}