diff --git a/swh/dataset/test/test_orc.py b/swh/dataset/test/test_orc.py
--- a/swh/dataset/test/test_orc.py
+++ b/swh/dataset/test/test_orc.py
@@ -1,9 +1,9 @@
 import collections
+from contextlib import contextmanager
 from pathlib import Path
 import tempfile
 
 import pyorc
-import pytest
 
 from swh.dataset.exporters.orc import (
     ORCExporter,
@@ -15,42 +15,45 @@
 from swh.model.tests.swh_model_data import TEST_OBJECTS
 
 
-@pytest.fixture
-def exporter():
-    def wrapped(messages, config=None):
-        with tempfile.TemporaryDirectory() as tmpname:
-            tmppath = Path(tmpname)
-            if config is None:
-                config = {}
-            with ORCExporter(config, tmppath) as exporter:
-                for object_type, objects in messages.items():
-                    for obj in objects:
-                        exporter.process_object(object_type, obj.to_dict())
-            res = collections.defaultdict(set)
-            for obj_type_dir in tmppath.iterdir():
-                for orc_file in obj_type_dir.iterdir():
-                    with orc_file.open("rb") as orc_obj:
-                        res[obj_type_dir.name] |= set(
-                            pyorc.Reader(
-                                orc_obj,
-                                converters={
-                                    pyorc.TypeKind.TIMESTAMP: SWHTimestampConverter
-                                },
-                            )
-                        )
-            return res
-
-    return wrapped
-
-
-def test_export_origin(exporter):
+@contextmanager
+def orc_export(messages, config=None):
+    with tempfile.TemporaryDirectory() as tmpname:
+        tmppath = Path(tmpname)
+        if config is None:
+            config = {}
+        with ORCExporter(config, tmppath) as exporter:
+            for object_type, objects in messages.items():
+                for obj in objects:
+                    exporter.process_object(object_type, obj.to_dict())
+        yield tmppath
+
+
+def orc_load(rootdir):
+    res = collections.defaultdict(set)
+    for obj_type_dir in rootdir.iterdir():
+        for orc_file in obj_type_dir.iterdir():
+            with orc_file.open("rb") as orc_obj:
+                reader = pyorc.Reader(
+                    orc_obj,
+                    converters={pyorc.TypeKind.TIMESTAMP: SWHTimestampConverter},
+                )
+                res[obj_type_dir.name] |= set(reader)
+    return res
+
+
+def exporter(messages, config=None):
+    with orc_export(messages, config) as exportdir:
+        return orc_load(exportdir)
+
+
+def test_export_origin():
     obj_type = "origin"
     output = exporter({obj_type: TEST_OBJECTS[obj_type]})
     for obj in TEST_OBJECTS[obj_type]:
         assert (obj.url,) in output[obj_type]
 
 
-def test_export_origin_visit(exporter):
+def test_export_origin_visit():
     obj_type = "origin_visit"
     output = exporter({obj_type: TEST_OBJECTS[obj_type]})
     for obj in TEST_OBJECTS[obj_type]:
@@ -59,7 +62,7 @@
         ]
 
 
-def test_export_origin_visit_status(exporter):
+def test_export_origin_visit_status():
     obj_type = "origin_visit_status"
     output = exporter({obj_type: TEST_OBJECTS[obj_type]})
     for obj in TEST_OBJECTS[obj_type]:
@@ -72,7 +75,7 @@
         ) in output[obj_type]
 
 
-def test_export_snapshot(exporter):
+def test_export_snapshot():
     obj_type = "snapshot"
     output = exporter({obj_type: TEST_OBJECTS[obj_type]})
     for obj in TEST_OBJECTS[obj_type]:
@@ -88,7 +91,7 @@
             ) in output["snapshot_branch"]
 
 
-def test_export_release(exporter):
+def test_export_release():
     obj_type = "release"
     output = exporter({obj_type: TEST_OBJECTS[obj_type]})
     for obj in TEST_OBJECTS[obj_type]:
@@ -103,7 +106,7 @@
         ) in output[obj_type]
 
 
-def test_export_revision(exporter):
+def test_export_revision():
     obj_type = "revision"
     output = exporter({obj_type: TEST_OBJECTS[obj_type]})
     for obj in TEST_OBJECTS[obj_type]:
@@ -126,7 +129,7 @@
             ) in output["revision_history"]
 
 
-def test_export_directory(exporter):
+def test_export_directory():
     obj_type = "directory"
     output = exporter({obj_type: TEST_OBJECTS[obj_type]})
     for obj in TEST_OBJECTS[obj_type]:
@@ -141,7 +144,7 @@
             ) in output["directory_entry"]
 
 
-def test_export_content(exporter):
+def test_export_content():
     obj_type = "content"
     output = exporter({obj_type: TEST_OBJECTS[obj_type]})
     for obj in TEST_OBJECTS[obj_type]:
@@ -155,7 +158,7 @@
         ) in output[obj_type]
 
 
-def test_export_skipped_content(exporter):
+def test_export_skipped_content():
     obj_type = "skipped_content"
     output = exporter({obj_type: TEST_OBJECTS[obj_type]})
     for obj in TEST_OBJECTS[obj_type]: