diff --git a/tests/everest/test_data/snake_oil/eclipse/include/grid/CASE.EGRID b/tests/everest/test_data/snake_oil/eclipse/include/grid/CASE.EGRID
deleted file mode 100644
index 33da9f7a70e..00000000000
Binary files a/tests/everest/test_data/snake_oil/eclipse/include/grid/CASE.EGRID and /dev/null differ
diff --git a/tests/everest/test_data/snake_oil/eclipse/model/SNAKE_OIL.DATA b/tests/everest/test_data/snake_oil/eclipse/model/SNAKE_OIL.DATA
deleted file mode 100644
index e0a2329dda4..00000000000
--- a/tests/everest/test_data/snake_oil/eclipse/model/SNAKE_OIL.DATA
+++ /dev/null
@@ -1,4 +0,0 @@
-START
-
---  DAY   MONTH  YEAR
-     1    'JAN'  2017   /
diff --git a/tests/everest/test_data/snake_oil/everest/model/snake_oil_all.yml b/tests/everest/test_data/snake_oil/everest/model/snake_oil_all.yml
deleted file mode 100644
index b85ff6305da..00000000000
--- a/tests/everest/test_data/snake_oil/everest/model/snake_oil_all.yml
+++ /dev/null
@@ -1,93 +0,0 @@
-# A version of snake_oil.yml where all level one keys are added
-definitions:
-  scratch: /tmp/everest/super/scratch
-  eclbase: model/SNAKE_OIL
-
-wells:
-  - {name: W1}
-  - {name: W2}
-  - {name: W3}
-  - {name: W4}
-
-controls:
-  -
-    name: group
-    type: well_control
-    min: 0
-    max: 1
-    variables:
-      -
-        name: W1
-        initial_guess: 0
-      -
-        name: W2
-        initial_guess: 0
-      -
-        name: W3
-        initial_guess: 1
-      -
-        name: W4
-        initial_guess: 1
-  -
-    name: super_scalars
-    type: generic_control
-    variables:
-      -
-        name: gravity
-        initial_guess: 9.81
-        min: 0
-        max: 1000
-
-objective_functions:
-  -
-    name: snake_oil_nvp
-
-input_constraints:
-  -
-    target: 1.0
-    weights:
-        group.W1: 1
-        group.W2: 1
-        group.W3: 1
-        group.W4: 1
-
-install_jobs:
-  -
-    name: snake_oil_diff
-    source: ../../jobs/SNAKE_OIL_DIFF
-  -
-    name: snake_oil_simulator
-    source: ../../jobs/SNAKE_OIL_SIMULATOR
-  -
-    name: snake_oil_npv
-    source: ../../jobs/SNAKE_OIL_NPV
-
-install_data:
-  -
-    source: ../../eclipse/include/grid/CASE.EGRID
-    target: MY_GRID.EGRID
-  -
-    source: ../../eclipse/model/SNAKE_OIL.DATA
-    target: SNAKE_OIL.DATA
-
-optimization:
-  algorithm: optpp_q_newton
-
-environment:
-  simulation_folder: r{{ scratch }}/simulations
-
-simulator:
-  queue_system: lsf
-  cores: 3
-  name: mr
-  resubmit_limit: 17
-  options: span = 1 && select[x86 and GNU/Linux]
-  server: lx-fastserver01
-
-model:
-  realizations: [0, 1, 2]
-
-forward_model:
-  - snake_oil_simulator
-  - snake_oil_npv
-  - snake_oil_diff
diff --git a/tests/everest/test_data/snake_oil/jobs b/tests/everest/test_data/snake_oil/jobs
deleted file mode 120000
index ba95610ece3..00000000000
--- a/tests/everest/test_data/snake_oil/jobs
+++ /dev/null
@@ -1 +0,0 @@
-../../../../test-data/ert/snake_oil/forward_models
\ No newline at end of file
diff --git a/tests/everest/test_everlint.py b/tests/everest/test_everlint.py
index 62f92cc986c..b8aa0768bb4 100644
--- a/tests/everest/test_everlint.py
+++ b/tests/everest/test_everlint.py
@@ -12,8 +12,6 @@
 from tests.everest.test_config_validation import has_error
 from tests.everest.utils import relpath
 
-SNAKE_OIL_CONFIG = relpath("test_data/snake_oil/", "everest/model/snake_oil_all.yml")
-
 
 @pytest.fixture
 def min_config():
@@ -350,34 +348,30 @@ def test_init_context_controls():
         assert len(EverestConfig.lint_config_dict(config)) > 0
 
 
-def test_date_type():
-    valid_dates = (
-        "2000-1-1",
-        "2010-1-1",
-        "2018-12-31",
-    )
-
-    invalid_dates = (
-        "32.01.2000",
-        "2000-1-32",
-        "fdsafdas",
-        "01-01-01",
-        "...",
-        None,
-        {},
-        "2000-2-30",
+@pytest.mark.parametrize(
+    "date, valid",
+    [
+        ("2000-1-1", True),
+        ("2010-1-1", True),
+        ("2018-12-31", True),
+        ("32.01.2000", False),
+        ("2000-1-32", False),
+        ("fdsafdas", False),
+        ("01-01-01", False),
+        ("...", False),
+        (None, False),
+        ("2000-2-30", False),
+    ],
+)
+def test_date_type(date, valid, min_config):
+    expectation = (
+        does_not_raise()
+        if valid
+        else pytest.raises(ValidationError, match=f"malformed date: {date}")
     )
-
-    for date in valid_dates + invalid_dates:
-        config = yaml_file_to_substituted_config_dict(SNAKE_OIL_CONFIG)
-        config[ConfigKeys.WELLS][0][ConfigKeys.DRILL_DATE] = date
-
-        err = EverestConfig.lint_config_dict(config)
-        if date in valid_dates:
-            assert not err
-        else:
-            assert len(err) > 0, "%s was wrongly accepted" % date
-            has_error(err, match=f"malformed date: {date}(.*)")
+    min_config["wells"] = [{"drill_date": date, "name": "test"}]
+    with expectation:
+        EverestConfig(**min_config)
 
 
 @pytest.mark.fails_on_macos_github_workflow
diff --git a/tests/everest/test_res_initialization.py b/tests/everest/test_res_initialization.py
index fc654338a9a..46903c6c111 100644
--- a/tests/everest/test_res_initialization.py
+++ b/tests/everest/test_res_initialization.py
@@ -22,8 +22,6 @@
     skipif_no_opm,
 )
 
-TUTORIAL_CONFIG_DIR = "mocked_test_case"
-
 
 @pytest.mark.parametrize(
     "config, expected",