MavenProject project = mock( MavenProject.class );
when( project.getPrerequisites() ).thenReturn( new Prerequisites() );
EnforcerRuleHelper helper = mock( EnforcerRuleHelper.class );
when( helper.evaluate( "${project}" ) ).thenReturn( project );
rule.execute( helper );
}
@Test( expected = EnforcerRuleException.class )