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.RuleSetNotFoundException; 6 import test.net.sourceforge.pmd.testframework.SimpleAggregatorTst; 7 import test.net.sourceforge.pmd.testframework.TestDescriptor; 8 9 public class EqualsNullRuleTest extends SimpleAggregatorTst { 10 11 private Rule rule; 12 13 public void setUp() throws RuleSetNotFoundException { 14 rule = findRule("design", "EqualsNull"); 15 } 16 17 public void testAll() { 18 runTests(new TestDescriptor[]{ 19 new TestDescriptor(TEST1, "object.equals(null), bad", 1, rule), 20 new TestDescriptor(TEST2, "object == null, ok", 0, rule), 21 new TestDescriptor(TEST3, "object.method().equals(null), bad", 1, rule), 22 }); 23 } 24 25 private static final String TEST1 = 26 "public class Foo {" + PMD.EOL + 27 " void bar() {" + PMD.EOL + 28 " if (foo.equals(null)) {}" + PMD.EOL + 29 " }" + PMD.EOL + 30 "}"; 31 32 private static final String TEST2 = 33 "public class Foo {" + PMD.EOL + 34 " void bar() {" + PMD.EOL + 35 " if (foo == null) {}" + PMD.EOL + 36 " }" + PMD.EOL + 37 "}"; 38 39 private static final String TEST3 = 40 "public class Foo {" + PMD.EOL + 41 " void bar() {" + PMD.EOL + 42 " if (foo.bar().equals(null)) {}" + PMD.EOL + 43 " }" + PMD.EOL + 44 "}"; 45 46 }