Remove some pytest warning

tests/test_alpc.py

@@ -15,7 +15,7 @@ def generate_client_server_test(client_function, server_function):
         time.sleep(0.5)
         client_function()
         th.join()
-        return True
+        return
     return generated_test
 
 PORT_NAME = r"\RPC Control\PythonForWindowsTestPort"

tests/test_crypto.py

@@ -227,7 +227,7 @@ def test_crypt_obj():
     # TODO: Need some better ideas
 
 def test_certificate_from_store():
-    return windows.crypto.CertificateStore.from_system_store("Root")
+    assert windows.crypto.CertificateStore.from_system_store("Root")
 
 
 def test_sign_verify(rawcert, rawpfx):

tests/test_process.py

@@ -25,7 +25,7 @@ class TestCurrentProcessWithCheckGarbage(object):
         assert myself.ppid == windows.current_process.ppid
 
     def test_get_current_process_peb(self):
-        return windows.current_process.peb
+        assert windows.current_process.peb
 
     def test_get_current_process_modules(self):
         # Use module filename because this executable can be: