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1 package com.puppycrawl.tools.checkstyle.api;
2
3 import junit.framework.TestCase;
4
5 import java.io.File  ;
6 import java.io.FileFilter ;
7 import java.text.MessageFormat ;
8
9 import com.puppycrawl.tools.checkstyle.TreeWalker;
10
11
15 public class DetailASTTest extends TestCase {
16
17 public void testGetChildCount() {
18 final DetailAST root = new DetailAST();
19 final DetailAST firstLevelA = new DetailAST();
20 final DetailAST firstLevelB = new DetailAST();
21 final DetailAST secondLevelA = new DetailAST();
22
23 root.setFirstChild(firstLevelA);
24
25 firstLevelA.setParent(root);
26 firstLevelA.setFirstChild(secondLevelA);
27 firstLevelA.setNextSibling(firstLevelB);
28
29 firstLevelB.setParent(root);
30
31 secondLevelA.setParent(firstLevelA);
32
33 assertEquals(0, secondLevelA.getChildCount());
34 assertEquals(0, firstLevelB.getChildCount());
35 assertEquals(1, firstLevelA.getChildCount());
36 assertEquals(2, root.getChildCount());
37 assertEquals(2, root.getChildCount());
38
39 assertNull(root.getPreviousSibling());
40 assertNull(firstLevelA.getPreviousSibling());
41 assertNull(secondLevelA.getPreviousSibling());
42 assertEquals(firstLevelA, firstLevelB.getPreviousSibling());
43 }
44
45 public void testTreeStructure() throws Exception
46 {
47 checkDir(new File (System.getProperty("testinputs.dir")));
48 }
49
50 private void checkDir(File dir) throws Exception
51 {
52 File [] files = dir.listFiles(new FileFilter () {
53 public boolean accept(File file) {
54 return (file.getName().endsWith(".java")
55 || file.isDirectory())
56 && !file.getName().endsWith("InputGrammar.java");
57 }
58 });
59 for (int i = 0; i < files.length; i++) {
60 if (files[i].isFile()) {
61 checkFile(files[i].getCanonicalPath());
62 }
63 else if (files[i].isDirectory()) {
64 checkDir(files[i]);
65 }
66 }
67 }
68
69 private void checkFile(String filename) throws Exception
70 {
71 final String [] lines =
72 Utils.getLines(filename,
73 System.getProperty("file.encoding", "UTF-8"));
74 final FileContents contents = new FileContents(filename, lines);
75 final DetailAST rootAST = TreeWalker.parse(contents);
76 checkTree(rootAST, null, null, filename, rootAST);
77 }
78
79 private void checkTree(final DetailAST node,
80 final DetailAST parent,
81 final DetailAST prev,
82 final String filename,
83 final DetailAST root)
84 {
85 Object [] params = new Object [] {
86 node, parent, prev, filename, root,
87 };
88 String msg = MessageFormat.format(
89 "Bad parent node={0} parent={1} filename={3} root={4}",
90 params);
91 assertEquals(msg, parent, node.getParent());
92 msg = MessageFormat.format(
93 "Bad prev node={0} prev={2} parent={1} filename={3} root={4}",
94 params);
95 assertEquals(msg, prev, node.getPreviousSibling());
96
97 if (node.getFirstChild() != null) {
98 checkTree((DetailAST) node.getFirstChild(), node, null,
99 filename, root);
100 }
101 if (node.getNextSibling() != null) {
102 checkTree((DetailAST) node.getNextSibling(), parent, node,
103 filename, root);
104 }
105 }
106 }
107 |
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