IsValid() public method

Determines whether the specified value of the object is valid.
public IsValid ( object value ) : bool
value object The value of the object to validate.
return bool
        public void IsValidWithNoArgumentTests()
        {
            var attribute = new FileExtensionsAttribute();

            Assert.IsTrue(attribute.IsValid(null));  // Optional values are always valid
            Assert.IsTrue(attribute.IsValid("foo.png"));
            Assert.IsTrue(attribute.IsValid("foo.jpeg"));
            Assert.IsTrue(attribute.IsValid("foo.jpg"));
            Assert.IsTrue(attribute.IsValid("foo.gif"));
            Assert.IsTrue(attribute.IsValid(@"C:\Foo\bar.png"));
            Assert.IsFalse(attribute.IsValid("foo"));
            Assert.IsFalse(attribute.IsValid("foo.doc"));
            Assert.IsFalse(attribute.IsValid("foo.txt"));
            Assert.IsFalse(attribute.IsValid("foo.png.txt"));
        }
        public void IsValidWithCustomArgumentsTests()
        {
            var attribute = new FileExtensionsAttribute("pdf|doc|docx|rtf");

            Assert.IsTrue(attribute.IsValid(null));  // Optional values are always valid
            Assert.IsTrue(attribute.IsValid("foo.pdf"));
            Assert.IsTrue(attribute.IsValid("foo.doc"));
            Assert.IsTrue(attribute.IsValid("foo.docx"));
            Assert.IsTrue(attribute.IsValid("foo.rtf"));
            Assert.IsTrue(attribute.IsValid(@"C:\Foo\bar.pdf"));
            Assert.IsFalse(attribute.IsValid("foo"));
            Assert.IsFalse(attribute.IsValid("foo.png"));
            Assert.IsFalse(attribute.IsValid("foo.jpeg"));
            Assert.IsFalse(attribute.IsValid("foo.doc.txt"));
        }
		public void IsValid ()
		{
			var sla = new FileExtensionsAttribute () {
				Extensions = "txt,jpg"
			};

			Assert.IsTrue (sla.IsValid (null), "#A1-1");
			Assert.IsFalse (sla.IsValid (String.Empty), "#A1-2");
			Assert.IsFalse (sla.IsValid ("string"), "#A1-3");
			Assert.IsTrue (sla.IsValid ("file.txt"), "#A1-4");
			Assert.IsTrue (sla.IsValid ("file.jpg"), "#A1-5");
			Assert.IsTrue (sla.IsValid ("file.xxx.txt"), "#A-6");
			Assert.IsFalse (sla.IsValid (true), "#A1-7");
			Assert.IsFalse (sla.IsValid (DateTime.Now), "#A1-8");
		}