1   /***
2    * BSD-style license; for more info see http://pmd.sourceforge.net/license.html
3   */
4   package test.net.sourceforge.pmd.rules;
5   
6   import net.sourceforge.pmd.PMD;
7   import net.sourceforge.pmd.Rule;
8   import net.sourceforge.pmd.RuleSetNotFoundException;
9   import test.net.sourceforge.pmd.testframework.SimpleAggregatorTst;
10  import test.net.sourceforge.pmd.testframework.TestDescriptor;
11  
12  public class StringInstantiationRuleTest extends SimpleAggregatorTst {
13  
14      private Rule rule;
15  
16      public void setUp() throws RuleSetNotFoundException {
17          rule = findRule("rulesets/strings.xml", "StringInstantiation");
18      }
19  
20      public void testAll() {
21         runTests(new TestDescriptor[] {
22             new TestDescriptor(TEST1, "new 'new String's", 2, rule),
23             new TestDescriptor(TEST2, "new String array", 0, rule),
24             new TestDescriptor(TEST3, "using multiple parameter constructor", 0, rule),
25             new TestDescriptor(TEST4, "using 4 parameter constructor", 0, rule)
26         });
27      }
28  
29      private static final String TEST1 =
30      "public class Foo {" + PMD.EOL +
31      " private String bar = new String(\"bar\");" + PMD.EOL +
32      " private String baz = new String();" + PMD.EOL +
33      "}";
34  
35      private static final String TEST2 =
36      "public class Foo {" + PMD.EOL +
37      " private String[] bar = new String[5];" + PMD.EOL +
38      "}";
39  
40      private static final String TEST3 =
41      "public class Foo {" + PMD.EOL +
42      " void foo() {" + PMD.EOL +
43      "  byte[] bytes = new byte[50];" + PMD.EOL +
44      "  String bar = new String(bytes, 0, bytes.length);" + PMD.EOL +
45      " }" + PMD.EOL +
46      "}";
47  
48      private static final String TEST4 =
49      "public class Foo {" + PMD.EOL +
50      " void foo() {" + PMD.EOL +
51      "  byte[] bytes = new byte[50];" + PMD.EOL +
52      "  String bar = new String(bytes, 0, bytes.length, \"some-encoding\");" + PMD.EOL +
53      " }" + PMD.EOL +
54      "}";
55  
56  
57  }