public void IsQuadrilateralTest( )
{
Assert.AreEqual( true, shapeChecker.IsQuadrilateral( square1 ) );
Assert.AreEqual( true, shapeChecker.IsQuadrilateral( square2 ) );
Assert.AreEqual( true, shapeChecker.IsQuadrilateral( square3 ) );
Assert.AreEqual( true, shapeChecker.IsQuadrilateral( rectangle ) );
Assert.AreEqual( false, shapeChecker.IsQuadrilateral( idealCicle ) );
Assert.AreEqual( false, shapeChecker.IsQuadrilateral( distorredCircle ) );
Assert.AreEqual( false, shapeChecker.IsQuadrilateral( triangle1 ) );
Assert.AreEqual( false, shapeChecker.IsQuadrilateral( equilateralTriangle ) );
Assert.AreEqual( false, shapeChecker.IsQuadrilateral( isoscelesTriangle ) );
Assert.AreEqual( false, shapeChecker.IsQuadrilateral( rectangledTriangle ) );
}