C# – Comparing two List for equality

.netc++collectionscomparisonequality

Other than stepping through the elements one by one, how do I compare two lists of strings for equality (in .NET 3.0):

This fails:

// Expected result.
List<string> expected = new List<string>();
expected.Add( "a" );
expected.Add( "b" );
expected.Add( "c" );

// Actual result
actual = new List<string>();
actual.Add( "a" );
actual.Add( "b" );
actual.Add( "c" );

// Verdict
Assert.IsTrue( actual == expected );

Best Solution

Many test frameworks offer a CollectionAssert class:

CollectionAssert.AreEqual(expected, actual);

E.g MS Test