def test_warm_start_l1r_regression(): clf = CDRegressor(warm_start=True, random_state=0, penalty="l1") clf.C = 0.1 clf.fit(bin_dense, bin_target) n_nz = clf.n_nonzero() clf.C = 0.2 clf.fit(bin_dense, bin_target) n_nz2 = clf.n_nonzero() assert_true(n_nz < n_nz2)