public void WithdrawlDeadlockSafetyTest()
{
// Arrange
var subject = new TestCard(123);
subject.TopUp(123, 500);
// Act
// lock it first
Monitor.Enter(subject.SyncRoot);
try
{
// now let another thread try to get the monitor
var result = Task.Run(() => subject.Withdraw(123, 100)).Result;
// Assert
Assert.That(result.HasError, Is.EqualTo(true));
Assert.That(result.Error, Is.EqualTo("Unable to withdraw. Please try later."));
}
finally
{
Monitor.Exit(subject.SyncRoot);
}
}
