diff --git a/beets/test/helper.py b/beets/test/helper.py
index c64998174..5409b3425 100644
--- a/beets/test/helper.py
+++ b/beets/test/helper.py
@@ -253,59 +253,6 @@ class TestHelper(_common.Assertions):
         Item._queries = Item._original_queries
         Album._queries = Album._original_queries
 
-    def create_importer(self, item_count=1, album_count=1):
-        """Create files to import and return corresponding session.
-
-        Copies the specified number of files to a subdirectory of
-        `self.temp_dir` and creates a `ImportSessionFixture` for this path.
-        """
-        import_dir = os.path.join(self.temp_dir, b"import")
-        if not os.path.isdir(syspath(import_dir)):
-            os.mkdir(syspath(import_dir))
-
-        album_no = 0
-        while album_count:
-            album = util.bytestring_path(f"album {album_no}")
-            album_dir = os.path.join(import_dir, album)
-            if os.path.exists(syspath(album_dir)):
-                album_no += 1
-                continue
-            os.mkdir(syspath(album_dir))
-            album_count -= 1
-
-            track_no = 0
-            album_item_count = item_count
-            while album_item_count:
-                title = f"track {track_no}"
-                src = os.path.join(_common.RSRC, b"full.mp3")
-                title_file = util.bytestring_path(f"{title}.mp3")
-                dest = os.path.join(album_dir, title_file)
-                if os.path.exists(syspath(dest)):
-                    track_no += 1
-                    continue
-                album_item_count -= 1
-                shutil.copy(syspath(src), syspath(dest))
-                mediafile = MediaFile(dest)
-                mediafile.update(
-                    {
-                        "artist": "artist",
-                        "albumartist": "album artist",
-                        "title": title,
-                        "album": album,
-                        "mb_albumid": None,
-                        "mb_trackid": None,
-                    }
-                )
-                mediafile.save()
-
-        config["import"]["quiet"] = True
-        config["import"]["autotag"] = False
-        config["import"]["resume"] = False
-
-        return ImportSessionFixture(
-            self.lib, loghandler=None, query=None, paths=[import_dir]
-        )
-
     # Library fixtures methods
 
     def create_item(self, **values):
@@ -642,6 +589,59 @@ class ImportHelper:
 
         self._get_import_session(import_dir or self.import_dir)
 
+    def create_importer(self, item_count=1, album_count=1):
+        """Create files to import and return corresponding session.
+
+        Copies the specified number of files to a subdirectory of
+        `self.temp_dir` and creates a `ImportSessionFixture` for this path.
+        """
+        import_dir = os.path.join(self.temp_dir, b"import")
+        if not os.path.isdir(syspath(import_dir)):
+            os.mkdir(syspath(import_dir))
+
+        album_no = 0
+        while album_count:
+            album = util.bytestring_path(f"album {album_no}")
+            album_dir = os.path.join(import_dir, album)
+            if os.path.exists(syspath(album_dir)):
+                album_no += 1
+                continue
+            os.mkdir(syspath(album_dir))
+            album_count -= 1
+
+            track_no = 0
+            album_item_count = item_count
+            while album_item_count:
+                title = f"track {track_no}"
+                src = os.path.join(_common.RSRC, b"full.mp3")
+                title_file = util.bytestring_path(f"{title}.mp3")
+                dest = os.path.join(album_dir, title_file)
+                if os.path.exists(syspath(dest)):
+                    track_no += 1
+                    continue
+                album_item_count -= 1
+                shutil.copy(syspath(src), syspath(dest))
+                mediafile = MediaFile(dest)
+                mediafile.update(
+                    {
+                        "artist": "artist",
+                        "albumartist": "album artist",
+                        "title": title,
+                        "album": album,
+                        "mb_albumid": None,
+                        "mb_trackid": None,
+                    }
+                )
+                mediafile.save()
+
+        config["import"]["quiet"] = True
+        config["import"]["autotag"] = False
+        config["import"]["resume"] = False
+
+        return ImportSessionFixture(
+            self.lib, loghandler=None, query=None, paths=[import_dir]
+        )
+
     def assert_file_in_lib(self, *segments):
         """Join the ``segments`` and assert that this path exists in the
         library directory.
diff --git a/test/plugins/test_convert.py b/test/plugins/test_convert.py
index b82592d64..67b513bb9 100644
--- a/test/plugins/test_convert.py
+++ b/test/plugins/test_convert.py
@@ -23,7 +23,12 @@ from mediafile import MediaFile
 
 from beets import util
 from beets.test import _common
-from beets.test.helper import PluginTestCase, capture_log, control_stdin
+from beets.test.helper import (
+    ImportHelper,
+    PluginTestCase,
+    capture_log,
+    control_stdin,
+)
 from beets.util import bytestring_path, displayable_path
 
 
@@ -90,7 +95,7 @@ class ConvertTestCase(ConvertMixin, PluginTestCase):
 
 
 @_common.slow_test()
-class ImportConvertTest(ConvertTestCase):
+class ImportConvertTest(ImportHelper, ConvertTestCase):
     def setUp(self):
         super().setUp()
         self.importer = self.create_importer()
diff --git a/test/plugins/test_keyfinder.py b/test/plugins/test_keyfinder.py
index fbf0ae0f6..d941df3ca 100644
--- a/test/plugins/test_keyfinder.py
+++ b/test/plugins/test_keyfinder.py
@@ -17,11 +17,11 @@ from unittest.mock import patch
 
 from beets import util
 from beets.library import Item
-from beets.test.helper import PluginTestCase
+from beets.test.helper import ImportTestCase, PluginMixin
 
 
 @patch("beets.util.command_output")
-class KeyFinderTest(PluginTestCase):
+class KeyFinderTest(PluginMixin, ImportTestCase):
     plugin = "keyfinder"
 
     def test_add_key(self, command_output):
diff --git a/test/plugins/test_permissions.py b/test/plugins/test_permissions.py
index e5db878d0..a83fbfb26 100644
--- a/test/plugins/test_permissions.py
+++ b/test/plugins/test_permissions.py
@@ -6,7 +6,7 @@ import platform
 from unittest.mock import Mock, patch
 
 from beets.test._common import touch
-from beets.test.helper import PluginTestCase
+from beets.test.helper import ImportTestCase, PluginMixin
 from beets.util import displayable_path
 from beetsplug.permissions import (
     check_permissions,
@@ -15,7 +15,7 @@ from beetsplug.permissions import (
 )
 
 
-class PermissionsPluginTest(PluginTestCase):
+class PermissionsPluginTest(PluginMixin, ImportTestCase):
     plugin = "permissions"
 
     def setUp(self):
diff --git a/test/plugins/test_replaygain.py b/test/plugins/test_replaygain.py
index 65b27d1bc..342902a63 100644
--- a/test/plugins/test_replaygain.py
+++ b/test/plugins/test_replaygain.py
@@ -19,7 +19,7 @@ from typing import ClassVar
 from mediafile import MediaFile
 
 from beets import config
-from beets.test.helper import BeetsTestCase, has_program
+from beets.test.helper import ImportTestCase, has_program
 from beetsplug.replaygain import (
     FatalGstreamerPluginReplayGainError,
     GStreamerBackend,
@@ -52,7 +52,7 @@ def reset_replaygain(item):
     item.store()
 
 
-class ReplayGainTestCase(BeetsTestCase):
+class ReplayGainTestCase(ImportTestCase):
     db_on_disk = True
     backend: ClassVar[str]
 
diff --git a/test/test_importer.py b/test/test_importer.py
index 4d150acc3..62daa8a10 100644
--- a/test/test_importer.py
+++ b/test/test_importer.py
@@ -1159,7 +1159,7 @@ def match_album_mock(*args, **kwargs):
 
 
 @patch("beets.autotag.mb.match_album", Mock(side_effect=match_album_mock))
-class ImportDuplicateAlbumTest(BeetsTestCase):
+class ImportDuplicateAlbumTest(ImportTestCase):
     def setUp(self):
         super().setUp()
 
@@ -1278,7 +1278,7 @@ def match_track_mock(*args, **kwargs):
 
 
 @patch("beets.autotag.mb.match_track", Mock(side_effect=match_track_mock))
-class ImportDuplicateSingletonTest(BeetsTestCase):
+class ImportDuplicateSingletonTest(ImportTestCase):
     def setUp(self):
         super().setUp()
 
@@ -1364,7 +1364,7 @@ class TagLogTest(BeetsTestCase):
         self.assertIn("status caf\xe9", sio.getvalue())
 
 
-class ResumeImportTest(BeetsTestCase):
+class ResumeImportTest(ImportTestCase):
     @patch("beets.plugins.send")
     def test_resume_album(self, plugins_send):
         self.importer = self.create_importer(album_count=2)
@@ -1409,7 +1409,7 @@ class ResumeImportTest(BeetsTestCase):
         self.assertIsNotNone(self.lib.items("title:track 1").get())
 
 
-class IncrementalImportTest(BeetsTestCase):
+class IncrementalImportTest(ImportTestCase):
     def setUp(self):
         super().setUp()
         self.config["import"]["incremental"] = True
diff --git a/test/test_logging.py b/test/test_logging.py
index fbc6a5f33..2919e6030 100644
--- a/test/test_logging.py
+++ b/test/test_logging.py
@@ -9,7 +9,7 @@ import beets.logging as blog
 import beetsplug
 from beets import plugins, ui
 from beets.test import _common, helper
-from beets.test.helper import BeetsTestCase, PluginTestCase
+from beets.test.helper import BeetsTestCase, ImportTestCase, PluginMixin
 
 
 class LoggingTest(BeetsTestCase):
@@ -46,7 +46,7 @@ class LoggingTest(BeetsTestCase):
         self.assertTrue(stream.getvalue(), "foo oof baz")
 
 
-class LoggingLevelTest(PluginTestCase):
+class LoggingLevelTest(PluginMixin, ImportTestCase):
     plugin = "dummy"
 
     class DummyModule:
@@ -161,7 +161,7 @@ class LoggingLevelTest(PluginTestCase):
 
 
 @_common.slow_test()
-class ConcurrentEventsTest(BeetsTestCase):
+class ConcurrentEventsTest(ImportTestCase):
     """Similar to LoggingLevelTest but lower-level and focused on multiple
     events interaction. Since this is a bit heavy we don't do it in
     LoggingLevelTest.