public void ResourceWithMimeTypeIsValid()
        {
            var resource = new Resource();

            resource.MimeType = "image/jpeg";
            var mimeTypeValidator = new MimeTypeRequiredValidator(resource);

            Assert.True(mimeTypeValidator.IsValid);
        }
        public void ResourceWithEmptyMimeTypeIsInvalid()
        {
            var resource = new Resource();

            resource.MimeType = "";
            var mimeTypeValidator = new MimeTypeRequiredValidator(resource);

            Assert.False(mimeTypeValidator.IsValid);
            Assert.Equal(1, mimeTypeValidator.Errors.Count());
        }