diff --git a/tests/test_3141596.py b/tests/test_3141596.py
index bc074c8f..06fd3772 100644
--- a/tests/test_3141596.py
+++ b/tests/test_3141596.py
@@ -7,8 +7,6 @@
 from unittest import skipIf
 from unittesting import AWAIT_WORKER
 from unittesting import DeferrableTestCase
-from unittesting.helpers import TempDirectoryTestCase
-from unittesting.helpers import ViewTestCase
 from unittesting.utils import isiterable
 
 BASEDIR = os.path.dirname(os.path.abspath(__file__))
@@ -199,23 +197,3 @@ def test_fail_color_scheme(self, txt):
     @with_package("_ColorScheme_Success", color_scheme_test=True)
     def test_success_color_scheme(self, txt):
         self.assertOk(txt)
-
-
-def tidy_path(path):
-    return os.path.realpath(os.path.normcase(path))
-
-
-class TestTempDirectoryTestCase(TempDirectoryTestCase):
-
-    def test_temp_dir(self):
-        self.assertTrue(
-            tidy_path(self._temp_dir),
-            tidy_path(self.window.folders()[0])
-        )
-
-
-class TestViewTestCase(ViewTestCase):
-
-    def test_view(self):
-        self.assertIsInstance(self.view, sublime.View)
-        self.assertTrue(self.view.is_valid())
diff --git a/tests/test_deferrable_view_test_case.py b/tests/test_deferrable_view_test_case.py
index d4affa1e..6897e613 100644
--- a/tests/test_deferrable_view_test_case.py
+++ b/tests/test_deferrable_view_test_case.py
@@ -1,4 +1,5 @@
 import sublime
+
 from unittesting import DeferrableViewTestCase
 
 
@@ -9,6 +10,7 @@ def test_window_object(self):
 
     def test_view_object(self):
         self.assertIsInstance(self.view, sublime.View)
+        self.assertTrue(self.view.is_valid())
 
     def test_view_settings(self):
         for key, value in self.view_settings.items():
diff --git a/tests/test_directory_test_case.py b/tests/test_directory_test_case.py
new file mode 100644
index 00000000..ab2e700c
--- /dev/null
+++ b/tests/test_directory_test_case.py
@@ -0,0 +1,16 @@
+import os
+
+from unittesting import TempDirectoryTestCase
+
+
+def tidy_path(path):
+    return os.path.realpath(os.path.normcase(path))
+
+
+class TestTempDirectoryTestCase(TempDirectoryTestCase):
+
+    def test_temp_dir(self):
+        self.assertTrue(
+            tidy_path(self._temp_dir),
+            tidy_path(self.window.folders()[0])
+        )
diff --git a/tests/test_view_test_case.py b/tests/test_view_test_case.py
index a2ce0ad0..7142e0d2 100644
--- a/tests/test_view_test_case.py
+++ b/tests/test_view_test_case.py
@@ -1,4 +1,5 @@
 import sublime
+
 from unittesting import ViewTestCase
 
 
@@ -9,6 +10,7 @@ def test_window_object(self):
 
     def test_view_object(self):
         self.assertIsInstance(self.view, sublime.View)
+        self.assertTrue(self.view.is_valid())
 
     def test_view_settings(self):
         for key, value in self.view_settings.items():