public void Convert_variant_Formats()
        {
            var conv = new SpecialThicknessConverter();
            var v    = 23;

            Assert.AreEqual(new Thickness(0, -23, 0, 0), conv.Convert("23", typeof(Thickness), "0 -{0} 0 0", null));
            Assert.AreEqual(new Thickness(v, 0, 0, 0), conv.Convert("23", typeof(Thickness), "Left", null));
            Assert.AreEqual(new Thickness(0, v, 0, 0), conv.Convert("23", typeof(Thickness), "Top", null));
            Assert.AreEqual(new Thickness(0, 0, v, 0), conv.Convert("23", typeof(Thickness), "Right", null));
            Assert.AreEqual(new Thickness(0, 0, 0, v), conv.Convert("23", typeof(Thickness), "Bottom", null));
            Assert.AreEqual(new Thickness(-v, 0, 0, 0), conv.Convert("23", typeof(Thickness), "-Left", null));
            Assert.AreEqual(new Thickness(0, -v, 0, 0), conv.Convert("23", typeof(Thickness), "-Top", null));
            Assert.AreEqual(new Thickness(0, 0, -v, 0), conv.Convert("23", typeof(Thickness), "-Right", null));
            Assert.AreEqual(new Thickness(0, 0, 0, -v), conv.Convert("23", typeof(Thickness), "-Bottom", null));
        }
        public void Convert_variant_Types()
        {
            var conv = new SpecialThicknessConverter();

            Assert.AreEqual(new Thickness(1, 0, 0, 0), conv.Convert((String)"1", typeof(Thickness), "Left", null));
            Assert.AreEqual(new Thickness(1, 0, 0, 0), conv.Convert((Int32 )1, typeof(Thickness), "Left", null));
            Assert.AreEqual(new Thickness(1, 0, 0, 0), conv.Convert((Double)1, typeof(Thickness), "Left", null));
            Assert.AreEqual(new Thickness(1, 0, 0, 0), conv.Convert((Single)1, typeof(Thickness), "Left", null));
            Assert.AreEqual(new Thickness(1, 0, 0, 0), conv.Convert((Int64 )1, typeof(Thickness), "Left", null));
            Assert.AreEqual(new Thickness(1, 0, 0, 0), conv.Convert((Int16 )1, typeof(Thickness), "Left", null));
//			Assert.AreEqual(new Thickness(1, 0, 0, 0),conv.Convert((Byte  ) 1 , typeof (Thickness), "Left", null));
//			Assert.AreEqual(new Thickness(1, 0, 0, 0),conv.Convert((SByte ) 1 , typeof (Thickness), "Left", null));
            Assert.AreEqual(new Thickness(1, 0, 0, 0), conv.Convert((Int32 )1, typeof(Thickness), "Left", null));
        }
        [Test][Ignore]        //TODO aktivate Test
        public void Convert_unsupported_Types()
        {
            var conv = new SpecialThicknessConverter();

            Assert.AreEqual(new Thickness(0, 0, 0, 0), conv.Convert((Decimal)1, typeof(Thickness), "Left", null));
        }