测试asp.net成员资格提供程序的2个问题

Question

I have created a unit test to search for users by name. I have 2 problems I cant figure out.

1. Assert.IsTrue(coll.Count == 2) doesnt count the users as it should. There should be 2 users and it only counts 1.

2. Assert.IsTrue(usernames.Contains("testUser")); doesn't find the partial username string as it should. Can someone tell me what I'm doing wrong?

Here is my code:

[TestMethod]
public void TestFindUsersByName()
{
    //set test to crate user 
    AsaMembershipProvider prov = this.GetMembershipProvider();
    MembershipCreateStatus status;
    //creates users
    MembershipUser user1 = prov.CreateUser("testUser1", "12345", "test.User1@abc.com", "", "", true, null, out status);
    MembershipUser user2 = prov.CreateUser("testUser2", "12345", "test.User2@abc.com", "", "", true, null, out status);

    //gets users
    user1 = prov.GetUser("testUser1", false); //not checking if user is online. Argument should be false. Not yet implemented 
    user2 = prov.GetUser("testUser2", false);

    int pageSize = 5;
    int pageIndex = 0;
    int totalRecords = 2;

    MembershipUserCollection coll = prov.FindUsersByName("testUser1", pageIndex, pageSize, out totalRecords);

    Assert.IsTrue(coll.Count == 2);

    List<string> usernames = new List<string>();

    foreach (MembershipUser user in coll)
    {
        usernames.Add(user.UserName);
    }

    Assert.AreNotEqual(usernames, null);
    Assert.IsTrue(usernames.Contains("testUser"));

    //Deletes Users
    prov.DeleteUser("testUser1", true);
    prov.DeleteUser("testUser2", true);

    //Tries to get users again
    user1 = prov.GetUser("testUser1", false);
    user2 = prov.GetUser("testUser2", false);

    //test that no users are returned
    Assert.AreEqual(null, user1);
    Assert.AreEqual(null, user2);

    }

Answer 1

1. prov.FindUsersByName("testUser1"... - shoud be "testUser"?
2. usernames.ToArray() == string[] {"testUser1", "testUser2"} - it doesn't contain "testUser"

Answer 2

Issue 1: You are looking for "testUser1" in a collection of two users. You get 1 and not 2 because there is only one user named "testUser1"

Issue 2: You are searching for "testUser" and not a partial.