Fix test errors

Author: ajfriedman22

ensemble_md/analysis/analyze_traj.py

@@ -543,6 +543,7 @@ def plot_state_hist(trajs, state_ranges, fig_name, stack=True, figsize=None, pre
             dir_list = []
             for i in fig_name.split('/')[:-1]:
                 dir_list.append(i)
+                dir_list.append('/')
             dir_path = ''.join(dir_list)
             np.save(f'{dir_path}/hist_data.npy', hist_data)
         else:

ensemble_md/tests/test_analyze_traj.py

@@ -595,7 +595,7 @@ def test_plot_state_hist(mock_plt):
     }
 
     # Clean up
-    os.remove('hist_data.npy')
+    os.remove('ensemble_md/tests/data/hist_data.npy')
 
 
 def test_calc_hist_rmse():

ensemble_md/tests/test_replica_exchange_EE.py

@@ -90,7 +90,7 @@ def test_set_params_error(self, params_dict):
         params_dict['n_sim'] = 4  # so params_dict can be read without failing in the assertions below
 
         # 2. Available options
-        check_param_error(params_dict, 'proposal', "The specified proposal scheme is not available. Available options include 'single', 'neighboring', 'exhaustive', 'forced_swap', 'forced_random'.", 'cool', 'exhaustive')  # noqa: E501
+        check_param_error(params_dict, 'proposal', "The specified proposal scheme is not available. Available options include 'single', 'neighboring', 'exhaustive', 'random_range'.", 'cool', 'exhaustive')  # noqa: E501
         check_param_error(params_dict, 'df_method', "The specified free energy estimator is not available. Available options include 'TI', 'BAR', and 'MBAR'.")  # noqa: E501
         check_param_error(params_dict, 'err_method', "The specified method for error estimation is not available. Available options include 'propagate', and 'bootstrap'.")  # noqa: E501