public void TestBidirectionalDictionary()
{
var dict1 = new BidirectionalDictionary <int, double>();
dict1.Add(4, 2.0);
Assert.IsTrue(dict1.ContainsFirst(4) && dict1.ContainsSecond(2));
bool exceptionOnDuplicate = false;
try {
dict1.Add(4, 3.0);
}
catch (ArgumentException) { exceptionOnDuplicate = true; }
Assert.IsTrue(exceptionOnDuplicate);
Assert.IsTrue(dict1.GetByFirst(4) == 2);
Assert.IsTrue(dict1.GetBySecond(2) == 4);
Assert.IsTrue(dict1.Count == 1);
dict1.Clear();
Assert.IsTrue(dict1.Count == 0);
var dict2 = new BidirectionalDictionary <ComplexType, int>(new ComplexTypeEqualityComparer());
Assert.IsTrue(!dict2.Any());
dict2.Add(new ComplexType(1), 2);
Assert.IsTrue(dict2.Any());
dict2.Add(new ComplexType(2), 1);
Assert.IsTrue(dict2.ContainsFirst(new ComplexType(2)));
Assert.IsTrue(dict2.ContainsSecond(2));
exceptionOnDuplicate = false;
try {
dict2.Add(new ComplexType(2), 3);
}
catch (ArgumentException) { exceptionOnDuplicate = true; }
Assert.IsTrue(exceptionOnDuplicate);
exceptionOnDuplicate = false;
try {
dict2.Add(new ComplexType(3), 1);
}
catch (ArgumentException) { exceptionOnDuplicate = true; }
Assert.IsTrue(exceptionOnDuplicate);
Assert.IsTrue(dict2.Count == 2);
Assert.IsTrue(dict2.GetBySecond(1).Field == 2);
Assert.IsTrue(dict2.GetByFirst(new ComplexType(1)) == 2);
dict2.Clear();
Assert.IsTrue(!dict2.Any());
}