public void Test_InvoiceEquatable()
{
var i1 = new InvoiceModel(1, new DateTime(2014, 1, 1), new DateTime(2014, 1, 10), "Comment", "Message",
new PersonModel(), null);
var i2Isi1 = new InvoiceModel(1, new DateTime(2014, 1, 1), new DateTime(2014, 1, 10), "Comment", "Message",
new PersonModel(), null);
var i3 = new InvoiceModel(2, new DateTime(2010, 10, 10), new DateTime(2011, 10, 10), "Comment #2",
"Message #2", new CompanyModel(), null);
Assert.IsTrue(i1.Equals(i2Isi1));
Assert.AreEqual(i1, i1);
Assert.AreEqual(i1, i2Isi1);
Assert.AreNotEqual(i1, i3);
}
