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1 package test.net.sourceforge.pmd.dfa;
2
3 import net.sourceforge.pmd.PMD;
4 import net.sourceforge.pmd.ast.ASTCompilationUnit;
5 import net.sourceforge.pmd.ast.ASTConstructorDeclaration;
6 import net.sourceforge.pmd.ast.ASTExpression;
7 import net.sourceforge.pmd.ast.ASTMethodDeclaration;
8 import net.sourceforge.pmd.ast.ASTStatementExpression;
9 import net.sourceforge.pmd.ast.ASTVariableDeclarator;
10 import net.sourceforge.pmd.dfa.DataFlowNode;
11 import net.sourceforge.pmd.dfa.IDataFlowNode;
12 import net.sourceforge.pmd.dfa.NodeType;
13 import net.sourceforge.pmd.dfa.StatementAndBraceFinder;
14 import test.net.sourceforge.pmd.testframework.ParserTst;
15
16 public class StatementAndBraceFinderTest extends ParserTst {
17
18 public void testStatementExpressionParentChildLinks() throws Throwable  {
19 ASTStatementExpression se = (ASTStatementExpression) getOrderedNodes(ASTStatementExpression.class, TEST1).get(0);
20 ASTMethodDeclaration seParent = (ASTMethodDeclaration) ((DataFlowNode) se.getDataFlowNode().getParents().get(0)).getSimpleNode();
21 assertEquals(se, ((IDataFlowNode) seParent.getDataFlowNode().getChildren().get(0)).getSimpleNode());
22 assertEquals(seParent, ((IDataFlowNode) se.getDataFlowNode().getParents().get(0)).getSimpleNode());
23 }
24
25 public void testVariableDeclaratorParentChildLinks() throws Throwable {
26 ASTVariableDeclarator vd = (ASTVariableDeclarator) getOrderedNodes(ASTVariableDeclarator.class, TEST2).get(0);
27 ASTMethodDeclaration vdParent = (ASTMethodDeclaration) ((DataFlowNode) vd.getDataFlowNode().getParents().get(0)).getSimpleNode();
28 assertEquals(vd, ((IDataFlowNode) vdParent.getDataFlowNode().getChildren().get(0)).getSimpleNode());
29 assertEquals(vdParent, ((IDataFlowNode) vd.getDataFlowNode().getParents().get(0)).getSimpleNode());
30 }
31
32 public void testIfStmtHasCorrectTypes() throws Throwable {
33 ASTExpression exp = (ASTExpression) getOrderedNodes(ASTExpression.class, TEST3).get(0);
34 IDataFlowNode dfn = (IDataFlowNode) exp.getDataFlowNode().getFlow().get(2);
35 assertTrue(dfn.isType(NodeType.IF_EXPR));
36 assertTrue(dfn.isType(NodeType.IF_LAST_STATEMENT_WITHOUT_ELSE));
37 }
38
39 public void testWhileStmtHasCorrectTypes() throws Throwable {
40 ASTExpression exp = (ASTExpression) getOrderedNodes(ASTExpression.class, TEST4).get(0);
41 IDataFlowNode dfn = (IDataFlowNode) exp.getDataFlowNode().getFlow().get(2);
42 assertTrue(dfn.isType(NodeType.WHILE_EXPR));
43 assertTrue(dfn.isType(NodeType.WHILE_LAST_STATEMENT));
44 }
45
46 public void testForStmtHasCorrectTypes() throws Throwable {
47 ASTExpression exp = (ASTExpression) getOrderedNodes(ASTExpression.class, TEST5).get(0);
48 IDataFlowNode dfn = (IDataFlowNode) exp.getDataFlowNode().getFlow().get(2);
49 assertTrue(dfn.isType(NodeType.FOR_INIT));
50 dfn = (IDataFlowNode) exp.getDataFlowNode().getFlow().get(3);
51 assertTrue(dfn.isType(NodeType.FOR_EXPR));
52 dfn = (IDataFlowNode) exp.getDataFlowNode().getFlow().get(4);
53 assertTrue(dfn.isType(NodeType.FOR_UPDATE));
54 assertTrue(dfn.isType(NodeType.FOR_BEFORE_FIRST_STATEMENT));
55 assertTrue(dfn.isType(NodeType.FOR_END));
56 }
57
58 public void testOnlyWorksForMethodsAndConstructors() {
59 StatementAndBraceFinder sbf = new StatementAndBraceFinder();
60 try {
61 sbf.buildDataFlowFor(new ASTCompilationUnit(1));
62 fail("Should have failed!");
63 } catch (RuntimeException e) {
64 }
66 sbf.buildDataFlowFor(new ASTMethodDeclaration(1));
67 sbf.buildDataFlowFor(new ASTConstructorDeclaration(1));
68 }
69
70 private static final String TEST1 =
71 "class Foo {" + PMD.EOL +
72 " void bar() {" + PMD.EOL +
73 " x = 2;" + PMD.EOL +
74 " }" + PMD.EOL +
75 "}";
76
77 private static final String TEST2 =
78 "class Foo {" + PMD.EOL +
79 " void bar() {" + PMD.EOL +
80 " int x;" + PMD.EOL +
81 " }" + PMD.EOL +
82 "}";
83
84 private static final String TEST3 =
85 "class Foo {" + PMD.EOL +
86 " void bar() {" + PMD.EOL +
87 " if (x) {}" + PMD.EOL +
88 " }" + PMD.EOL +
89 "}";
90
91 private static final String TEST4 =
92 "class Foo {" + PMD.EOL +
93 " void bar() {" + PMD.EOL +
94 " while (x) {}" + PMD.EOL +
95 " }" + PMD.EOL +
96 "}";
97
98 private static final String TEST5 =
99 "class Foo {" + PMD.EOL +
100 " void bar() {" + PMD.EOL +
101 " for (int i=0; i<10; i++) {}" + PMD.EOL +
102 " }" + PMD.EOL +
103 "}";
104 }
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