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1   /**
2    * Copyright (c) 2008-2011, http://www.snakeyaml.org
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  
17  package org.pyyaml;
18  
19  import java.io.File;
20  import java.io.FilenameFilter;
21  import java.io.IOException;
22  import java.io.InputStream;
23  import java.util.ArrayList;
24  import java.util.List;
25  
26  import junit.framework.TestCase;
27  
28  import org.yaml.snakeyaml.Util;
29  import org.yaml.snakeyaml.Yaml;
30  import org.yaml.snakeyaml.constructor.Constructor;
31  import org.yaml.snakeyaml.events.Event;
32  import org.yaml.snakeyaml.parser.Parser;
33  import org.yaml.snakeyaml.parser.ParserImpl;
34  import org.yaml.snakeyaml.reader.StreamReader;
35  import org.yaml.snakeyaml.reader.UnicodeReader;
36  
37  public abstract class PyImportTest extends TestCase {
38      public static final String PATH = "pyyaml";
39  
40      protected Object load(String data) {
41          Yaml yaml = new Yaml();
42          return yaml.load(data);
43      }
44  
45      protected Object load(Constructor loader, String data) {
46          Yaml yaml = new Yaml(loader);
47          return yaml.load(data);
48      }
49  
50      protected Iterable<Object> loadAll(InputStream data) {
51          Yaml yaml = new Yaml();
52          return yaml.loadAll(data);
53      }
54  
55      protected Iterable<Object> loadAll(String data) {
56          Yaml yaml = new Yaml();
57          return yaml.loadAll(data);
58      }
59  
60      protected Iterable<Object> loadAll(Constructor loader, String data) {
61          Yaml yaml = new Yaml(loader);
62          return yaml.loadAll(data);
63      }
64  
65      protected String getResource(String theName) {
66          String content;
67          content = Util.getLocalResource(PATH + File.separator + theName);
68          return content;
69      }
70  
71      protected File[] getStreamsByExtension(String extention) {
72          return getStreamsByExtension(extention, false);
73      }
74  
75      protected File[] getStreamsByExtension(String extention, boolean onlyIfCanonicalPresent) {
76          File file = new File("src/test/resources/pyyaml");
77          assertTrue("Folder not found: " + file.getAbsolutePath(), file.exists());
78          assertTrue(file.isDirectory());
79          return file.listFiles(new PyFilenameFilter(extention, onlyIfCanonicalPresent));
80      }
81  
82      protected File getFileByName(String name) {
83          File file = new File("src/test/resources/pyyaml/" + name);
84          assertTrue("Folder not found: " + file.getAbsolutePath(), file.exists());
85          assertTrue(file.isFile());
86          return file;
87      }
88  
89      protected List<Event> canonicalParse(InputStream input2) throws IOException {
90          StreamReader reader = new StreamReader(new UnicodeReader(input2));
91          StringBuilder buffer = new StringBuilder();
92          while (reader.peek() != '\0') {
93              buffer.append(reader.peek());
94              reader.forward();
95          }
96          CanonicalParser parser = new CanonicalParser(buffer.toString());
97          List<Event> result = new ArrayList<Event>();
98          while (parser.peekEvent() != null) {
99              result.add(parser.getEvent());
100         }
101         input2.close();
102         return result;
103     }
104 
105     protected List<Event> parse(InputStream input) throws IOException {
106         StreamReader reader = new StreamReader(new UnicodeReader(input));
107         Parser parser = new ParserImpl(reader);
108         List<Event> result = new ArrayList<Event>();
109         while (parser.peekEvent() != null) {
110             result.add(parser.getEvent());
111         }
112         input.close();
113         return result;
114     }
115 
116     private class PyFilenameFilter implements FilenameFilter {
117         private String extension;
118         private boolean onlyIfCanonicalPresent;
119 
120         public PyFilenameFilter(String extension, boolean onlyIfCanonicalPresent) {
121             this.extension = extension;
122             this.onlyIfCanonicalPresent = onlyIfCanonicalPresent;
123         }
124 
125         public boolean accept(File dir, String name) {
126             int position = name.lastIndexOf('.');
127             String canonicalFileName = name.substring(0, position) + ".canonical";
128             File canonicalFile = new File(dir, canonicalFileName);
129             if (onlyIfCanonicalPresent && !canonicalFile.exists()) {
130                 return false;
131             } else {
132                 return name.endsWith(extension);
133             }
134         }
135     }
136 }