The following code defines the data for a "User" business entity that can be used for testing:

protected override void PopulateEntityBasicStateExpected()
{
    this.EntityBasicState.Add("UserName", "jjones");
    this.EntityBasicState.Add("Prefix", "Dr.");
    this.EntityBasicState.Add("Password", "1234");
    this.EntityBasicState.Add("FirstName", "Joe");
    this.EntityBasicState.Add("MiddleName", "Sidmond");
    this.EntityBasicState.Add("LastName", "Jones");
    this.EntityBasicState.Add("Suffix", "III");
    this.EntityBasicState.Add("Title", "Professor");
    this.EntityBasicState.Add("BirthDate", new DateTime(1970, 11, 25));
    this.EntityBasicState.Add("Company", "Neverland Elementary School");
    this.EntityBasicState.Add("Photo", new Bitmap(1, 1));
}

The following code runs a unit test on a "User" business entity by testing the adding of contact information. It cleans up after itself by removing any data added during the test:

/// <summary>
/// Test adding communication info to a user.
/// </summary>
[Test]
public void TestUserWithCommunicationInfo()
{
    Collection<UserBusinessEntity> testEntities = BusinessObjectFixture<UserBusinessEntity>.GetNewTestEntities<UserFixture>(1);
    UserBusinessEntity userBE = testEntities[0];

    try
    {
        INameCommInfoEntity email = userBE.CommunicationInfo.Add(CommInfoType.Email, "claudio@eps-software.com");
        Assert.IsNotNull(email, "Failed adding a new item to the CommunicationInfo collection.");

        IEntitySubItemCollectionItem item = email as IEntitySubItemCollectionItem;
        Assert.IsNotNull(item, "Failed casting INameCommInfoEntity to IEntitySubItemCollectionItem");

        Assert.AreNotEqual(Guid.Empty, item.PK);

        Assert.IsTrue(userBE.Save(), "Failed saving user entity after adding contact info.");
    }
    finally
    {
        BusinessObjectFixture<UserBusinessEntity>.DeleteTestEntities<UserFixture>();
    }
}