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J.B. Maverick is an active trader, commodity futures broker, and stock market analyst 17+ years of experience, in addition to 10+ years of experience as a finance writer and book editor. David ...

Several tests use weak assertions (assert X is not None as terminal check) or fragile string containment checks (assert "x" in str(mock_call_args)) that may pass when ...

assert isinstance(d, np.ndarray), "d should be a NumPy array" assert isinstance(l, np.ndarray), "l should be a NumPy array" assert d.shape[0] == l.shape[0] or d.shape[0] == l.flatten().shape[0], "d ...