NUnit：字典断言

Question

I want a one liner , in NUnit, that asserts whether two dictionary are the same. ie, I want a concise version of the below code:

public static void DictionaryAssert<T, U>(Dictionary<T, U> dictionaryResult, Dictionary<T, U> expectedResult)
{
    Assert.AreEqual(dictionaryResult.Count, expectedResult.Count);
    foreach (var aKey in expectedResult.Keys)
    {
        Assert.AreEqual(expectedResult[aKey], dictionaryResult[aKey]);
    }
}

Surely it isn't so difficult, but I can't find the reference, any idea?

Answer 1

Have a look at CollectionAssert.AreEquivalent . This will assert that the two dictionaries have the same contents, but are not necessarily the same instance.

Answer 2

You can write framework agnostic asserts using a library called Should. It also has a very nice fluent syntax which can be used if you like fluent interfaces. I had a blog post related to the same.

http://nileshgule.blogspot.com/2010/11/use-should-assertion-library-to-write.html

Answer 3

Try using CollectionAssert.AreEqual or CollecitonAssert.AreEquivalent .

Both will compare the collection's items (rather than the collection's reference), but as discussed before , The difference is the item's order within the collections:

• AreEqual - The collections must have the same count, and contain the exact same items in the same order.
• AreEquivalent - The collections must contain the same items but the match may be in any order.