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UseAssertEqualsInsteadOfAssertTrue


UseAssertEqualsInsteadOfAssertTrue

This rule detects JUnit assertions in object equality. These assertions should be made by more specific methods, like assertEquals.

This rule is defined by the following XPath expression:

                
//PrimaryExpression[
    PrimaryPrefix/Name[@Image = 'assertTrue']
][
    PrimarySuffix/Arguments/ArgumentList/Expression/PrimaryExpression/PrimaryPrefix/Name
    [ends-with(@Image, '.equals')]
]
[ancestor::ClassOrInterfaceDeclaration[//ClassOrInterfaceType[typeof(@Image, 'junit.framework.TestCase','TestCase')] or //MarkerAnnotation/Name[typeof(@Image, 'org.junit.Test', 'Test')]]]
 
            

Example:

                

public class FooTest extends TestCase {
 void testCode() {
  Object a, b;
  assertTrue(a.equals(b)); // bad usage
  assertEquals(?a should equals b?, a, b); // good usage
 }
}

      
            




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