View Javadoc

1   /**
2    * Copyright (c) 2008-2012, 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  package org.pyyaml;
17  
18  import java.io.File;
19  import java.io.FilenameFilter;
20  import java.io.IOException;
21  import java.io.InputStream;
22  import java.util.ArrayList;
23  import java.util.List;
24  
25  import junit.framework.TestCase;
26  
27  import org.yaml.snakeyaml.Util;
28  import org.yaml.snakeyaml.Yaml;
29  import org.yaml.snakeyaml.constructor.Constructor;
30  import org.yaml.snakeyaml.events.Event;
31  import org.yaml.snakeyaml.parser.Parser;
32  import org.yaml.snakeyaml.parser.ParserImpl;
33  import org.yaml.snakeyaml.reader.StreamReader;
34  import org.yaml.snakeyaml.reader.UnicodeReader;
35  
36  public abstract class PyImportTest extends TestCase {
37      public static final String PATH = "pyyaml";
38  
39      protected Object load(String data) {
40          Yaml yaml = new Yaml();
41          return yaml.load(data);
42      }
43  
44      protected Object load(Constructor loader, String data) {
45          Yaml yaml = new Yaml(loader);
46          return yaml.load(data);
47      }
48  
49      protected Iterable<Object> loadAll(InputStream data) {
50          Yaml yaml = new Yaml();
51          return yaml.loadAll(data);
52      }
53  
54      protected Iterable<Object> loadAll(String data) {
55          Yaml yaml = new Yaml();
56          return yaml.loadAll(data);
57      }
58  
59      protected Iterable<Object> loadAll(Constructor loader, String data) {
60          Yaml yaml = new Yaml(loader);
61          return yaml.loadAll(data);
62      }
63  
64      protected String getResource(String theName) {
65          String content;
66          content = Util.getLocalResource(PATH + File.separator + theName);
67          return content;
68      }
69  
70      protected File[] getStreamsByExtension(String extention) {
71          return getStreamsByExtension(extention, false);
72      }
73  
74      protected File[] getStreamsByExtension(String extention, boolean onlyIfCanonicalPresent) {
75          File file = new File("src/test/resources/pyyaml");
76          assertTrue("Folder not found: " + file.getAbsolutePath(), file.exists());
77          assertTrue(file.isDirectory());
78          return file.listFiles(new PyFilenameFilter(extention, onlyIfCanonicalPresent));
79      }
80  
81      protected File getFileByName(String name) {
82          File file = new File("src/test/resources/pyyaml/" + name);
83          assertTrue("Folder not found: " + file.getAbsolutePath(), file.exists());
84          assertTrue(file.isFile());
85          return file;
86      }
87  
88      protected List<Event> canonicalParse(InputStream input2) throws IOException {
89          StreamReader reader = new StreamReader(new UnicodeReader(input2));
90          StringBuilder buffer = new StringBuilder();
91          while (reader.peek() != '\0') {
92              buffer.append(reader.peek());
93              reader.forward();
94          }
95          CanonicalParser parser = new CanonicalParser(buffer.toString());
96          List<Event> result = new ArrayList<Event>();
97          while (parser.peekEvent() != null) {
98              result.add(parser.getEvent());
99          }
100         input2.close();
101         return result;
102     }
103 
104     protected List<Event> parse(InputStream input) throws IOException {
105         StreamReader reader = new StreamReader(new UnicodeReader(input));
106         Parser parser = new ParserImpl(reader);
107         List<Event> result = new ArrayList<Event>();
108         while (parser.peekEvent() != null) {
109             result.add(parser.getEvent());
110         }
111         input.close();
112         return result;
113     }
114 
115     private class PyFilenameFilter implements FilenameFilter {
116         private String extension;
117         private boolean onlyIfCanonicalPresent;
118 
119         public PyFilenameFilter(String extension, boolean onlyIfCanonicalPresent) {
120             this.extension = extension;
121             this.onlyIfCanonicalPresent = onlyIfCanonicalPresent;
122         }
123 
124         public boolean accept(File dir, String name) {
125             int position = name.lastIndexOf('.');
126             String canonicalFileName = name.substring(0, position) + ".canonical";
127             File canonicalFile = new File(dir, canonicalFileName);
128             if (onlyIfCanonicalPresent && !canonicalFile.exists()) {
129                 return false;
130             } else {
131                 return name.endsWith(extension);
132             }
133         }
134     }
135 }