Add test for installation of everest_models jobs

tests/everest/test_fm_plugins.py

@@ -1,15 +1,21 @@
 import logging
+from importlib import resources
 from itertools import chain
 from typing import Callable, Iterator, Sequence, Type
 
 import pluggy
 import pytest
 from pydantic import BaseModel
 
+from ert import ForwardModelStepPlugin
+from everest.config import EverestConfig
 from everest.plugins import hook_impl, hook_specs, hookimpl
+from everest.simulator.everest_to_ert import everest_to_ert_config
 from everest.strings import EVEREST
 from everest.util.forward_models import collect_forward_models
 
+SNAKE_CONFIG_PATH = "test_data/snake_oil/everest/model/snake_oil.yml"
+
 
 class MockPluginManager(pluggy.PluginManager):
     """A testing plugin manager"""
@@ -43,11 +49,14 @@ def test_jobs():
 
 def test_everest_models_jobs(plugin_manager):
     pytest.importorskip("everest_models")
-    pm = plugin_manager()
-    assert any(
-        hook.plugin_name.startswith(EVEREST)
-        for hook in pm.hook.get_forward_models.get_hookimpls()
-    )
+    ert_config = everest_to_ert_config(EverestConfig.load_file(SNAKE_CONFIG_PATH))
+    jobs = list(resources.contents("everest_models.jobs"))
+    assert bool(jobs)
+    for job in jobs:
+        if job.startswith("fm_"):
+            job_class = ert_config.installed_forward_model_steps.get(job.lstrip("fm_"))
+            assert job_class is not None
+            assert isinstance(job_class, ForwardModelStepPlugin)
 
 
 def test_multiple_plugins(plugin_manager):