Check if running next test item
I have a Python Class that gets called from numerous places in our code. In that class, I have check to determine if this is the first time to call the class and it will perform some setup code if it...
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rraghvani
Champion Level 3
Champion Level 3In JavaScript, I've created a Singleton Class which gets instantiated once, and is called in every test. It reads a configuration file i.e. Storages.INI method, and sets up appropriate parameters, variables etc. While the scripts are running, only one instance is created, and if I create a new instance of the singleton class, the same object is returned.
The same can be applied in Python, see The Singleton Pattern as an example
I do something similar in Python. The problem is, Python retains the singleton between test items. If I run 10 test items, the singleton only gets created once. This is normally how I want python to work.
But, I have a specific case where I need to reset some values but only when running a new test item.
Hassan_BallanYou could use TestComplete Variables, but that just tracks state — it doesn’t solve the real issue, which is that Python persists for the entire run in TestComplete.
A cleaner approach is to reset your singleton at the start of each Test Item using a project event.
Do this:
- Go to Project → Events
- Add an OnStartTest handler
- Reset your class there
Example:
def GeneralEvents_OnStartTest(Sender): MySingleton.reset()And in your class:
class MySingleton: _instance = None @classmethod def reset(cls): cls._instance = NoneSince OnStartTest fires for every Test Item, this guarantees your setup runs once per Test Item without changing how the class is used elsewhere.
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✅ Issue resolved? Click Mark as SolutionThis works. I was thinking there would be a more Python specific solution but this is really a TestComplete issue and TestComplete solution.
