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.Report; 8 import net.sourceforge.pmd.Rule; 9 import net.sourceforge.pmd.RuleSetNotFoundException; 10 import test.net.sourceforge.pmd.testframework.SimpleAggregatorTst; 11 import test.net.sourceforge.pmd.testframework.TestDescriptor; 12 13 public class DoubleCheckedLockingTest extends SimpleAggregatorTst { 14 15 private Rule rule; 16 17 public void setUp() throws RuleSetNotFoundException { 18 rule = findRule("basic", "DoubleCheckedLocking"); 19 } 20 21 public void testAll() { 22 runTests(new TestDescriptor[]{ 23 new TestDescriptor(TEST1, "simple ok", 0, rule), 24 new TestDescriptor(TEST2, "simple failure", 1, rule), 25 new TestDescriptor(TEST3, "skip interfaces", 0, rule), 26 }); 27 } 28 29 public void testGenerics() throws Throwable { 30 Report rpt = new Report(); 31 runTestFromString15(TEST4, rule, rpt); 32 assertEquals(0, rpt.size()); 33 } 34 35 private static final String TEST1 = 36 "public class Foo {" + PMD.EOL + 37 " public void foo() {}" + PMD.EOL + 38 "}"; 39 40 private static final String TEST2 = 41 "public class Foo {" + PMD.EOL + 42 " Object baz;" + PMD.EOL + 43 " Object bar() {" + PMD.EOL + 44 " if(baz == null) { //baz may be non-null yet not fully created" + PMD.EOL + 45 " synchronized(this){" + PMD.EOL + 46 " if(baz == null){" + PMD.EOL + 47 " baz = new Object();" + PMD.EOL + 48 " }" + PMD.EOL + 49 " }" + PMD.EOL + 50 " }" + PMD.EOL + 51 " return baz;" + PMD.EOL + 52 " }" + PMD.EOL + 53 "}"; 54 55 private static final String TEST3 = 56 "public interface Foo {" + PMD.EOL + 57 " void foo();" + PMD.EOL + 58 "}"; 59 60 private static final String TEST4 = 61 "public class Foo {" + PMD.EOL + 62 " public <T> Bar<T> foo() { /* blah */}" + PMD.EOL + 63 "}"; 64 }