public void FormGeneratorProperty() {
// Arrange
Mock<ViewContext> mockViewContext = new Mock<ViewContext>();
mockViewContext.Expect(c => c.HttpContext.Items).Returns(new Hashtable());
HtmlHelper htmlHelper = new HtmlHelper(mockViewContext.Object, new Mock<IViewDataContainer>().Object);
// Act
string form0Name = htmlHelper.FormIdGenerator();
string form1Name = htmlHelper.FormIdGenerator();
string form2Name = htmlHelper.FormIdGenerator();
// Assert
Assert.AreEqual("form0", form0Name);
Assert.AreEqual("form1", form1Name);
Assert.AreEqual("form2", form2Name);
}