1 package test.net.sourceforge.pmd.rules;
2
3 import net.sourceforge.pmd.PMD;
4 import net.sourceforge.pmd.Rule;
5 import net.sourceforge.pmd.rules.XPathRule;
6
7 public class StringInstantiationRuleTest extends SimpleAggregatorTst {
8
9 private Rule rule;
10
11 public void setUp() {
12 rule = new XPathRule();
13 rule.addProperty("xpath", "//AllocationExpression[Name/@Image='String'][count(.//Expression) < 2][not(ArrayDimsAndInits)]");
14 }
15
16 public void testAll() {
17 runTests(new TestDescriptor[] {
18 new TestDescriptor(TEST1, "new 'new String's", 2, rule),
19 new TestDescriptor(TEST2, "new String array", 0, rule),
20 new TestDescriptor(TEST3, "using multiple parameter constructor", 0, rule),
21 new TestDescriptor(TEST4, "using 4 parameter constructor", 0, rule)
22 });
23 }
24
25 private static final String TEST1 =
26 "public class StringInstantiation1 {" + PMD.EOL +
27 " private String bar = new String(\"bar\");" + PMD.EOL +
28 " private String baz = new String();" + PMD.EOL +
29 "}";
30
31 private static final String TEST2 =
32 "public class StringInstantiation2 {" + PMD.EOL +
33 " private String[] bar = new String[5];" + PMD.EOL +
34 "}";
35
36 private static final String TEST3 =
37 "public class StringInstantiation3 {" + PMD.EOL +
38 " public void foo() {" + PMD.EOL +
39 " byte[] bytes = new byte[50];" + PMD.EOL +
40 " String bar = new String(bytes, 0, bytes.length);" + PMD.EOL +
41 " }" + PMD.EOL +
42 "}";
43
44 private static final String TEST4 =
45 "public class StringInstantiation4 {" + PMD.EOL +
46 " public void foo() {" + PMD.EOL +
47 " byte[] bytes = new byte[50];" + PMD.EOL +
48 " String bar = new String(bytes, 0, bytes.length, \"some-encoding\");" + PMD.EOL +
49 " }" + PMD.EOL +
50 "}";
51
52
53 }
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