resources.report.rules.pmd.SimplifyBooleanAssertion.html Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of sanity4j Show documentation

Sanity4J was created to simplify running multiple static code analysis tools on the Java projects. It provides a single entry point to run all the selected tools and produce a consolidated report, which presents all findings in an easily accessible manner.

The newest version!



SimplifyBooleanAssertion


SimplifyBooleanAssertion
Avoid negation in an assertTrue or assertFalse test.
For example, rephrase:
assertTrue(!expr);
as:
assertFalse(expr);
      
		
		
		    
    			This rule is defined by the following XPath expression:
    			
    			
        
//StatementExpression
[
.//Name[@Image='assertTrue' or  @Image='assertFalse']
and
PrimaryExpression/PrimarySuffix/Arguments/ArgumentList
 /Expression/UnaryExpressionNotPlusMinus[@Image='!']
/PrimaryExpression/PrimaryPrefix
]
[ancestor::ClassOrInterfaceDeclaration[//ClassOrInterfaceType[typeof(@Image, 'junit.framework.TestCase','TestCase')] or //MarkerAnnotation/Name[typeof(@Image, 'org.junit.Test', 'Test')]]]

              
  
		    
		    
	    
	    
        
        
        Example:
            
                    

public class SimpleTest extends TestCase {
 public void testX() {
  assertTrue("not empty", !r.isEmpty()); // replace with assertFalse("not empty", r.isEmpty())
  assertFalse(!r.isEmpty()); // replace with assertTrue(r.isEmpty())
 }
}