diff --git a/MANIFEST.in b/MANIFEST.in
index 86e75b33..fbf55fd3 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,4 +1,4 @@
-include README.rst COPYING setup.py MANIFEST.in CHANGELOG.md
+include README.rst COPYING setup.py MANIFEST.in CHANGELOG.md ropetest-package-fixtures/example-external-package/dist/example_external_package-1.0.0.tar.gz ropetest-package-fixtures/example-external-package/dist/example_external_package-1.0.0-py3-none-any.whl
 recursive-include rope *.py
 recursive-include docs *.rst
 recursive-include ropetest *.py
diff --git a/pyproject.toml b/pyproject.toml
index 0df77c25..276938f3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -87,6 +87,7 @@ profile = "black"
 
 [tool.pytest.ini_options]
 
+testpaths = "ropetest"
 python_files = [
     "*test.py",
     "__init__.py",
diff --git a/ropetest/contrib/autoimport/conftest.py b/ropetest/contrib/autoimport/conftest.py
index a3291304..670e0db5 100644
--- a/ropetest/contrib/autoimport/conftest.py
+++ b/ropetest/contrib/autoimport/conftest.py
@@ -24,19 +24,18 @@ def typing_path():
 
 
 @pytest.fixture
-def build_env_path():
-    from build import env
-
-    yield pathlib.Path(env.__file__)
+def example_external_package_module_path(example_external_package):
+    from example_external_package import example_module
+    yield pathlib.Path(example_module.__file__)
 
 
 @pytest.fixture
-def build_path():
-    import build
+def example_external_package_path(example_external_package):
+    import example_external_package
 
     # Uses __init__.py so we need the parent
 
-    yield pathlib.Path(build.__file__).parent
+    yield pathlib.Path(example_external_package.__file__).parent
 
 
 @pytest.fixture
diff --git a/ropetest/contrib/autoimport/utilstest.py b/ropetest/contrib/autoimport/utilstest.py
index ca003430..c6ca5b3d 100644
--- a/ropetest/contrib/autoimport/utilstest.py
+++ b/ropetest/contrib/autoimport/utilstest.py
@@ -14,11 +14,12 @@ def test_get_package_source_not_project(mod1_path):
     assert utils.get_package_source(mod1_path, None, "") == Source.UNKNOWN
 
 
-def test_get_package_source_pytest(build_path):
+def test_get_package_source_pytest(example_external_package_path):
     # pytest is not installed as part of the standard library
     # but should be installed into site_packages,
     # so it should return Source.SITE_PACKAGE
-    assert utils.get_package_source(build_path, None, "build") == Source.SITE_PACKAGE
+    source = utils.get_package_source(example_external_package_path, None, "example_module")
+    assert source == Source.SITE_PACKAGE
 
 
 def test_get_package_source_typing(typing_path):
@@ -33,9 +34,15 @@ def test_get_modname_single_file(typing_path):
     assert utils.get_modname_from_path(typing_path, typing_path) == "typing"
 
 
-def test_get_modname_folder(build_path, build_env_path):
-
-    assert utils.get_modname_from_path(build_env_path, build_path) == "build.env"
+def test_get_modname_folder(
+    example_external_package_path,
+    example_external_package_module_path,
+):
+    modname = utils.get_modname_from_path(
+        example_external_package_module_path,
+        example_external_package_path,
+    )
+    assert modname == "example_external_package.example_module"
 
 
 def test_get_package_tuple_sample(project_path):
diff --git a/ropetest/contrib/autoimporttest.py b/ropetest/contrib/autoimporttest.py
index d2f481da..0fc04293 100644
--- a/ropetest/contrib/autoimporttest.py
+++ b/ropetest/contrib/autoimporttest.py
@@ -111,13 +111,6 @@ def test_handling_builtin_modules(self):
         self.importer.update_module("sys")
         self.assertIn("sys", self.importer.get_modules("exit"))
 
-    def test_search_submodule(self):
-        self.importer.update_module("build")
-        import_statement = ("from build import env", "env")
-        self.assertIn(import_statement, self.importer.search("env", exact_match=True))
-        self.assertIn(import_statement, self.importer.search("en"))
-        self.assertIn(import_statement, self.importer.search("env"))
-
     def test_search_module(self):
         self.importer.update_module("os")
         import_statement = ("import os", "os")
@@ -184,6 +177,16 @@ def test_skipping_directories_not_accessible_because_of_permission_error(self):
         self.assertGreater(len(self.importer._dump_all()), 0)
 
 
+def test_search_submodule(example_external_package):
+    project = testutils.sample_project(extension_modules=["sys"])
+    importer = autoimport.AutoImport(project, observe=False)
+    importer.update_module("example_external_package")
+    import_statement = ("from example_external_package import example_module", "example_module")
+    assert import_statement in importer.search("example_module", exact_match=True)
+    assert import_statement in importer.search("exam")
+    assert import_statement in importer.search("example_module")
+
+
 class AutoImportObservingTest(unittest.TestCase):
     def setUp(self):
         super().setUp()