Dont use get_ensemble_by_name from LocalStorage

erts api has been updated such that get_ensemble_by_name
is only available via LocalExperiment.

tests/workflows/ahm_analysis/test_ahm_analysis.py

@@ -17,7 +17,8 @@ def test_make_update_log_df(snake_oil_facade, snapshot):
     snapshots are correct, they are just documenting the current behavior.
     """
     with open_storage(snake_oil_facade.enspath, "w") as storage:
-        prior_ens = storage.get_ensemble_by_name("default")
+        experiment = storage.get_experiment_by_name("default_experiment_name")
+        prior_ens = experiment.get_ensemble_by_name("default")
         posterior_ens = storage.create_ensemble(
             prior_ens.experiment_id,
             ensemble_size=prior_ens.ensemble_size,

tests/workflows/ahm_analysis/test_integration.py

@@ -14,10 +14,11 @@
 def test_ahmanalysis_run(snake_oil_facade):
     """test data_set with only scalar parameters"""
     with open_storage(snake_oil_facade.enspath, "w") as storage:
+        experiment = storage.get_experiment_by_name("default_experiment_name")
         snake_oil_facade.run_ertscript(
             ahmanalysis.AhmAnalysisJob,
             storage,
-            storage.get_ensemble_by_name("default"),
+            experiment.get_ensemble_by_name("default"),
         )
 
     # assert that this returns/generates a KS csv file
@@ -70,10 +71,11 @@ def test_ahmanalysis_run_deactivated_obs(snake_oil_facade, snapshot, caplog):
     with open_storage(snake_oil_facade.enspath, "w") as storage, caplog.at_level(
         logging.WARNING
     ):
+        experiment = storage.get_experiment_by_name("default_experiment_name")
         snake_oil_facade.run_ertscript(
             ahmanalysis.AhmAnalysisJob,
             storage,
-            storage.get_ensemble_by_name("default"),
+            experiment.get_ensemble_by_name("default"),
         )
     assert "Analysis failed for" in caplog.text