diff --git a/beets/test/helper.py b/beets/test/helper.py
index 24659d1d7..1499bd125 100644
--- a/beets/test/helper.py
+++ b/beets/test/helper.py
@@ -541,6 +541,8 @@ class ImportHelper:
     autotagging library and several assertions for the library.
     """
 
+    importer: importer.ImportSession
+
     def setup_beets(self, disk=False):
         super().setup_beets(disk)
         self.lib.path_formats = [
@@ -598,35 +600,33 @@ class ImportHelper:
             self.media_files.append(medium)
         self.import_media = self.media_files
 
+    def _get_import_session(self, import_dir: str) -> None:
+        self.importer = ImportSessionFixture(
+            self.lib,
+            loghandler=None,
+            query=None,
+            paths=[import_dir],
+        )
+
     def _setup_import_session(
         self,
         import_dir=None,
-        delete=False,
-        threaded=False,
-        copy=True,
         singletons=False,
         move=False,
         autotag=True,
-        link=False,
-        hardlink=False,
     ):
-        config["import"]["copy"] = copy
-        config["import"]["delete"] = delete
+        config["import"]["copy"] = True
+        config["import"]["delete"] = False
         config["import"]["timid"] = True
         config["threaded"] = False
         config["import"]["singletons"] = singletons
         config["import"]["move"] = move
         config["import"]["autotag"] = autotag
         config["import"]["resume"] = False
-        config["import"]["link"] = link
-        config["import"]["hardlink"] = hardlink
+        config["import"]["link"] = False
+        config["import"]["hardlink"] = False
 
-        self.importer = ImportSessionFixture(
-            self.lib,
-            loghandler=None,
-            query=None,
-            paths=[import_dir or self.import_dir],
-        )
+        self._get_import_session(import_dir or self.import_dir)
 
     def assert_file_in_lib(self, *segments):
         """Join the ``segments`` and assert that this path exists in the
@@ -759,37 +759,17 @@ class TerminalImportSessionFixture(TerminalImportSession):
             raise Exception("Unknown choice %s" % choice)
 
 
-class TerminalImportSessionSetup:
-    """Overwrites ImportHelper._setup_import_session to provide a terminal importer"""
+class TerminalImportMixin(ImportHelper):
+    """Provides_a terminal importer for the import session."""
 
-    def _setup_import_session(
-        self,
-        import_dir=None,
-        delete=False,
-        threaded=False,
-        copy=True,
-        singletons=False,
-        move=False,
-        autotag=True,
-    ):
-        config["import"]["copy"] = copy
-        config["import"]["delete"] = delete
-        config["import"]["timid"] = True
-        config["threaded"] = False
-        config["import"]["singletons"] = singletons
-        config["import"]["move"] = move
-        config["import"]["autotag"] = autotag
-        config["import"]["resume"] = False
-
-        if not hasattr(self, "io"):
-            self.io = _common.DummyIO()
+    def _get_import_session(self, import_dir: str) -> None:
         self.io.install()
         self.importer = TerminalImportSessionFixture(
             self.lib,
             loghandler=None,
             query=None,
             io=self.io,
-            paths=[import_dir or self.import_dir],
+            paths=[import_dir],
         )
 
 
diff --git a/test/plugins/test_edit.py b/test/plugins/test_edit.py
index 7e06e7a1c..2e6ae0745 100644
--- a/test/plugins/test_edit.py
+++ b/test/plugins/test_edit.py
@@ -23,7 +23,7 @@ from beets.test.helper import (
     AutotagStub,
     BeetsTestCase,
     ImportTestCase,
-    TerminalImportSessionSetup,
+    TerminalImportMixin,
     control_stdin,
 )
 from beetsplug.edit import EditPlugin
@@ -322,8 +322,8 @@ class EditCommandTest(BeetsTestCase, EditMixin):
 
 
 @_common.slow_test()
-class EditDuringImporterTest(
-    TerminalImportSessionSetup, ImportTestCase, EditMixin
+class EditDuringImporterTestCase(
+    EditMixin, TerminalImportMixin, ImportTestCase
 ):
     """TODO"""
 
diff --git a/test/plugins/test_mbsubmit.py b/test/plugins/test_mbsubmit.py
index f97e389c5..83cfb1b92 100644
--- a/test/plugins/test_mbsubmit.py
+++ b/test/plugins/test_mbsubmit.py
@@ -18,13 +18,13 @@ import unittest
 from beets.test.helper import (
     AutotagStub,
     ImportTestCase,
-    TerminalImportSessionSetup,
+    TerminalImportMixin,
     capture_stdout,
     control_stdin,
 )
 
 
-class MBSubmitPluginTest(TerminalImportSessionSetup, ImportTestCase):
+class MBSubmitPluginTest(TerminalImportMixin, ImportTestCase):
     def setUp(self):
         self.setup_beets()
         self.load_plugins("mbsubmit")
diff --git a/test/test_plugins.py b/test/test_plugins.py
index acf703e46..2ea24b02c 100644
--- a/test/test_plugins.py
+++ b/test/test_plugins.py
@@ -35,7 +35,7 @@ from beets.test.helper import (
     AutotagStub,
     BeetsTestCase,
     ImportHelper,
-    TerminalImportSessionSetup,
+    TerminalImportMixin,
 )
 from beets.util import displayable_path, syspath
 from beets.util.id_extractors import (
@@ -377,7 +377,7 @@ class ListenersTest(PluginLoaderTestCase):
         plugins.send("event9", foo=5)
 
 
-class PromptChoicesTest(TerminalImportSessionSetup, PluginImportTestCase):
+class PromptChoicesTest(TerminalImportMixin, PluginImportTestCase):
     def setUp(self):
         super().setUp()
         self._setup_import_session()
diff --git a/test/test_ui_importer.py b/test/test_ui_importer.py
index 3991376ac..7dfcc205e 100644
--- a/test/test_ui_importer.py
+++ b/test/test_ui_importer.py
@@ -21,57 +21,53 @@ test_importer module. But here the test importer inherits from
 import unittest
 from test import test_importer
 
-from beets.test.helper import TerminalImportSessionSetup
+from beets.test.helper import TerminalImportMixin
 
 
 class NonAutotaggedImportTest(
-    TerminalImportSessionSetup, test_importer.NonAutotaggedImportTest
+    TerminalImportMixin, test_importer.NonAutotaggedImportTest
 ):
     pass
 
 
-class ImportTest(TerminalImportSessionSetup, test_importer.ImportTest):
+class ImportTest(TerminalImportMixin, test_importer.ImportTest):
     pass
 
 
 class ImportSingletonTest(
-    TerminalImportSessionSetup, test_importer.ImportSingletonTest
+    TerminalImportMixin, test_importer.ImportSingletonTest
 ):
     pass
 
 
-class ImportTracksTest(
-    TerminalImportSessionSetup, test_importer.ImportTracksTest
-):
+class ImportTracksTest(TerminalImportMixin, test_importer.ImportTracksTest):
     pass
 
 
 class ImportCompilationTest(
-    TerminalImportSessionSetup, test_importer.ImportCompilationTest
+    TerminalImportMixin, test_importer.ImportCompilationTest
 ):
     pass
 
 
-class ImportExistingTest(
-    TerminalImportSessionSetup, test_importer.ImportExistingTest
-):
+class ImportExistingTest(TerminalImportMixin, test_importer.ImportExistingTest):
     pass
 
 
 class ChooseCandidateTest(
-    TerminalImportSessionSetup, test_importer.ChooseCandidateTest
+    TerminalImportMixin, test_importer.ChooseCandidateTest
 ):
     pass
 
 
 class GroupAlbumsImportTest(
-    TerminalImportSessionSetup, test_importer.GroupAlbumsImportTest
+    TerminalImportMixin, test_importer.GroupAlbumsImportTest
 ):
     pass
 
 
 class GlobalGroupAlbumsImportTest(
-    TerminalImportSessionSetup, test_importer.GlobalGroupAlbumsImportTest
+    TerminalImportMixin, test_importer.GlobalGroupAlbumsImportTest
 ):
     pass