test_fgw_problem.py: test_prepare_costs alpha given to prepare

[selmanozleyen]

Here alpha shouldn't be given to prepare otherwise it will throw error after #696. So I removed it in that PR. Or do we want another kind of behavior? Note that this alpha also doesn't go to solve method its just ignored.

moscot/tests/problems/generic/test_fgw_problem.py

Lines 199 to 210 in 20c891a

	def test_prepare_costs(self, adata_time: AnnData, cost_str: str, cost_inst: Any, cost_kwargs: CostKwargs_t):
	problem = FGWProblem(adata=adata_time)
	problem = problem.prepare(
	key="time",
	policy="sequential",
	joint_attr="X_pca",
	alpha=0.5,
	x_attr="X_pca",
	y_attr="X_pca",
	cost=cost_str,
	cost_kwargs=cost_kwargs,
	)

[selmanozleyen]

closed with #696