public void CanMergeTags()
{
// ARRANGE
var tags1 = new TagCollection(3);
tags1.Add("key1", "value1");
tags1.Add("key2", "value2");
tags1.Add("key0", "value0");
var tags2 = new TagCollection(3);
tags2.Add("key3", "value3");
tags2.Add("key2", "value2");
tags2.Add("key4", "value4");
tags1 = tags1.AsReadOnly();
tags2 = tags2.AsReadOnly();
// ACT
tags1.Merge(tags2);
// ASSERT
Assert.AreEqual(5, tags1.Count);
for (int i = 0; i < 5; i++)
{
Assert.AreEqual("key" + i, tags1.KeyAt(i));
Assert.AreEqual("value" + i, tags1.ValueAt(i));
}
}