1 files changed, 21 insertions, 1 deletions
diff --git a/Lib/test/test_importlib/test_resource.py b/Lib/test/test_importlib/test_resource.py
index c38ad03..d717e1d 100644
--- a/Lib/test/test_importlib/test_resource.py
+++ b/Lib/test/test_importlib/test_resource.py
@@ -4,7 +4,7 @@ import unittest
 from . import data01
 from . import zipdata02
 from . import util
-from importlib import resources
+from importlib import resources, import_module
 
 
 class ResourceTests:
@@ -109,6 +109,26 @@ class ResourceFromZipsTest(util.ZipSetupBase, unittest.TestCase):
             set(resources.contents('ziptestdata.two')),
             {'__init__.py', 'resource2.txt'})
 
+    def test_is_submodule_resource(self):
+        submodule = import_module('ziptestdata.subdirectory')
+        self.assertTrue(
+            resources.is_resource(submodule, 'binary.file'))
+
+    def test_read_submodule_resource_by_name(self):
+        self.assertTrue(
+            resources.is_resource('ziptestdata.subdirectory', 'binary.file'))
+
+    def test_submodule_contents(self):
+        submodule = import_module('ziptestdata.subdirectory')
+        self.assertEqual(
+            set(resources.contents(submodule)),
+            {'__init__.py', 'binary.file'})
+
+    def test_submodule_contents_by_name(self):
+        self.assertEqual(
+            set(resources.contents('ziptestdata.subdirectory')),
+            {'__init__.py', 'binary.file'})
+
 
 class NamespaceTest(unittest.TestCase):
     def test_namespaces_cant_have_resources(self):