public void GivenIdOf1ThenReturnAsynchronouslyGangMemberFromDbToMatchExpected()
{
// Instantiate the DataLayer which we are to use.
DataLayer dataLayer = new DataLayer();
// Declare the actual gang member.
GangMember actualMember = null;
// Decide on which gang member we want from the database
int memberID = 1;
// Create a task this goes and gets us the gang member we are after on
// a separate thread. Because I/O can take some time we can now move on
// and do other stuff.
Task<GangMember> actualMemberTask = dataLayer.GetGangMemberByIDAsync(memberID);
// In the mean time while I/O is happening we can instantiate our
// expected gang member, this is what we will test against.
GangMember expectedMember = new GangMember()
{
MemberID = 1,
MemberName = "Gentleman Jack",
MemberRank = "Bootlegger"
};
// We have created our expected gang member, I/O could still be occurring.
// To block any further execution on the calling thread and force us to wait
// until I/O finishes we call the .Result property (the same as the Wait method)
// Note: We wouldn't want to call .Result before we instantiate the expected
// member because this would defeat the purpose of doing async I/O.
actualMember = actualMemberTask.Result;
// Here we test that the expectedMember and actualMember match.
Assert.AreEqual(expectedMember.MemberID, actualMember.MemberID);
Assert.AreEqual(expectedMember.MemberName, actualMember.MemberName);
Assert.AreEqual(expectedMember.MemberRank, actualMember.MemberRank);
}