CPPUNIT_TEST_SUITE_REGISTRATION( PointTestCase );
CPPUNIT_TEST_SUITE_REGISTRATION( RealPointTestCase );
-// also include in it's own registry so that these tests can be run alone
+// also include in its own registry so that these tests can be run alone
CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( PointTestCase, "PointTestCase" );
CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( RealPointTestCase, "RealPointTestCase" );
p6 = p2; p6 = p2 - s;
CPPUNIT_ASSERT( p3 == p5 );
CPPUNIT_ASSERT( p4 == p6 );
+ p5 = p2; p5 = s + p2;
+ p6 = p2; p6 = s - p2;
+ CPPUNIT_ASSERT( p3 == p5 );
+ CPPUNIT_ASSERT( p4 == -p6 );
p5 = p2; p5 += s;
p6 = p2; p6 -= s;
CPPUNIT_ASSERT( p3 == p5 );