1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.layoutlib.bridge.android;
18
19import com.android.layoutlib.bridge.impl.ParserFactory;
20
21import org.junit.AfterClass;
22import org.junit.BeforeClass;
23import org.junit.Test;
24import org.kxml2.io.KXmlParser;
25import org.w3c.dom.Node;
26import org.xmlpull.v1.XmlPullParser;
27import org.xmlpull.v1.XmlPullParserException;
28
29import android.annotation.NonNull;
30
31import static org.junit.Assert.assertEquals;
32
33public class BridgeXmlBlockParserTest {
34
35    @BeforeClass
36    public static void setUp() {
37        ParserFactory.setParserFactory(new ParserFactoryImpl());
38    }
39
40    @Test
41    public void testXmlBlockParser() throws Exception {
42
43        XmlPullParser parser = ParserFactory.create(
44                getClass().getResourceAsStream("/com/android/layoutlib/testdata/layout1.xml"),
45                        "layout1.xml");
46
47        parser = new BridgeXmlBlockParser(parser, null, false /* platformResourceFlag */);
48
49        assertEquals(XmlPullParser.START_DOCUMENT, parser.next());
50
51        assertEquals(XmlPullParser.START_TAG, parser.next());
52        assertEquals("LinearLayout", parser.getName());
53
54        assertEquals(XmlPullParser.TEXT, parser.next());
55
56        assertEquals(XmlPullParser.START_TAG, parser.next());
57        assertEquals("Button", parser.getName());
58        assertEquals(XmlPullParser.TEXT, parser.next());
59        assertEquals(XmlPullParser.END_TAG, parser.next());
60
61        assertEquals(XmlPullParser.TEXT, parser.next());
62
63        assertEquals(XmlPullParser.START_TAG, parser.next());
64        assertEquals("View", parser.getName());
65        assertEquals(XmlPullParser.END_TAG, parser.next());
66
67        assertEquals(XmlPullParser.TEXT, parser.next());
68
69        assertEquals(XmlPullParser.START_TAG, parser.next());
70        assertEquals("TextView", parser.getName());
71        assertEquals(XmlPullParser.END_TAG, parser.next());
72
73        assertEquals(XmlPullParser.TEXT, parser.next());
74
75        assertEquals(XmlPullParser.END_TAG, parser.next());
76        assertEquals(XmlPullParser.END_DOCUMENT, parser.next());
77    }
78
79    //------------
80
81    /**
82     * Quick 'n' dirty debug helper that dumps an XML structure to stdout.
83     */
84    @SuppressWarnings("unused")
85    private void dump(Node node, String prefix) {
86        Node n;
87
88        String[] types = {
89                "unknown",
90                "ELEMENT_NODE",
91                "ATTRIBUTE_NODE",
92                "TEXT_NODE",
93                "CDATA_SECTION_NODE",
94                "ENTITY_REFERENCE_NODE",
95                "ENTITY_NODE",
96                "PROCESSING_INSTRUCTION_NODE",
97                "COMMENT_NODE",
98                "DOCUMENT_NODE",
99                "DOCUMENT_TYPE_NODE",
100                "DOCUMENT_FRAGMENT_NODE",
101                "NOTATION_NODE"
102        };
103
104        String s = String.format("%s<%s> %s %s",
105                prefix,
106                types[node.getNodeType()],
107                node.getNodeName(),
108                node.getNodeValue() == null ? "" : node.getNodeValue().trim());
109
110        System.out.println(s);
111
112        n = node.getFirstChild();
113        if (n != null) {
114            dump(n, prefix + "- ");
115        }
116
117        n = node.getNextSibling();
118        if (n != null) {
119            dump(n, prefix);
120        }
121    }
122
123    @AfterClass
124    public static void tearDown() {
125        ParserFactory.setParserFactory(null);
126    }
127
128    private static class ParserFactoryImpl
129            extends com.android.ide.common.rendering.api.ParserFactory {
130
131        @NonNull
132        @Override
133        public XmlPullParser createParser(String displayName) throws XmlPullParserException {
134            return new KXmlParser();
135        }
136    }
137}
138