public void All_items_added__existing_items_removed()
{
ITagCollection tc = new TagCollection();
tc.Add("one", 1);
tc.Add("one", 2);
tc.Add("one", 3);
tc.Add("two", 11);
tc.Add("two", 12);
ITagCollection tc2 = new TagCollection();
tc2.Add("one", 0);
tc2.Add("one", 1);
tc2.AddOrUpdateFrom(tc, overrideOldValues: true);
var vals = tc2["one"];
Assert.AreEqual(3, vals.Count);
Assert.IsTrue(vals.Contains(1));
Assert.IsTrue(vals.Contains(2));
Assert.IsTrue(vals.Contains(3));
vals = tc2["two"];
Assert.AreEqual(2, vals.Count);
Assert.IsTrue(vals.Contains(11));
Assert.IsTrue(vals.Contains(12));
Assert.AreEqual(5, tc2.Count());
}
public void All_items_added__By_default_existing_items_remain_unchanged()
{
ITagCollection tc = new TagCollection();
tc.Add("one", 1);
tc.Add("one", 2);
tc.Add("one", 3);
tc.Add("two", 11);
tc.Add("two", 12);
ITagCollection tc2 = new TagCollection();
tc2.Add("one", 0);
tc2.Add("one", 1);
tc2.AddOrUpdateFrom(tc);
var vals = tc2["one"];
Assert.AreEqual(4, vals.Count);
Assert.IsTrue(vals.Contains(0));
Assert.IsTrue(vals.Contains(1));
Assert.IsTrue(vals.Contains(2));
Assert.IsTrue(vals.Contains(3));
vals = tc2["two"];
Assert.AreEqual(2, vals.Count);
Assert.IsTrue(vals.Contains(11));
Assert.IsTrue(vals.Contains(12));
Assert.AreEqual(6, tc2.Count());
}
public void value_not_specified__value_set_to_true()
{
ITagCollection tc = new TagCollection();
tc.Add("should_be_true");
Assert.IsTrue((bool)tc["should_be_true"].Single());
Assert.IsTrue(tc.Contains("should_be_true"));
Assert.AreEqual(1, tc.Count());
}