When pip detects dependency conflicts but still succeeds (exit code 0), it outputs to stderr a message like:

ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. Running pip check may reveal dependency conflicts.

The current condition is:

conflict_occurred = "dependency conflicts" in err and "ERROR" not in err

Since pip's conflict message contains BOTH "dependency conflicts" AND "ERROR", the evaluation is:

• "dependency conflicts" in err → True
• "ERROR" not in err → False
• True and False → False

So conflict_occurred is False, and assert not False passes. The test will never detect actual dependency conflicts from pip.

The condition should likely be:

conflict_occurred = "dependency conflicts" in err or "ERROR" in err

or simply:

conflict_occurred = "dependency conflicts" in err

Impact: The test is meant to catch dependency conflicts between Feast and KServe, but it will always pass regardless of whether conflicts exist, defeating its purpose.