Fix first half of the pyright warnings in unit tests

Signed-off-by: Bernhard Kaindl <bernhard.kaindl@cloud.com>

Author: bernhardkaindl

tests/httpserver_testcase.py

@@ -1,4 +1,5 @@
 import os
+import sys
 import unittest
 from typing import Callable, Optional
 
@@ -14,6 +15,7 @@
     ErrorHandler = Optional[Callable[[Request], Response]]
 except ImportError:
     pytest.skip(allow_module_level=True)
+    sys.exit(0)  # Let pyright know that this is a dead end
 
 
 class HTTPServerTestCase(unittest.TestCase):
@@ -31,7 +33,7 @@ def tearDownClass(cls):
 
     @classmethod
     def serve_file(cls, root, file_path, error_handler=None, real_path=None):
-        # type:(str, str, Optional[Callable[[Request], Response]], Optional[str]) -> None
+        # type:(str, str, ErrorHandler, Optional[str]) -> None
         """Expect a GET request and handle it using the local pytest_httpserver.HTTPServer"""
 
         def handle_get(request):

tests/test_accessor.py

@@ -1,14 +1,16 @@
 import unittest
-
-from pyfakefs.fake_filesystem import FakeFilesystem
+from typing import TYPE_CHECKING
 
 import xcp.accessor
 
 from .test_mountingaccessor import check_binary_read, check_binary_write
 
+if TYPE_CHECKING:
+    import pyfakefs
+
 
 def test_file_accessor(fs):
-    # type:(FakeFilesystem) -> None
+    # type(pyfakefs.fake_filesystem.FakeFilesystem) -> None
     """Test FileAccessor.writeFile(), .openAddress and .access using pyfakefs"""
     accessor = xcp.accessor.createAccessor("file://repo/", False)
     assert isinstance(accessor, xcp.accessor.FileAccessor)

tests/test_ftpaccessor.py

@@ -21,13 +21,14 @@
 from io import BytesIO
 
 import pytest
-import pytest_localftpserver  # pylint: disable=unused-import # Ensure that it is installed
+import pytest_localftpserver  # Ensure that it is installed
 from six import ensure_binary, ensure_str
 
 import xcp.accessor
 
 binary_data = b"\x80\x91\xaa\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xcc\xdd\xee\xff"
 text_data = "✋➔Hello Accessor from the 🗺, download and verify ✅ me!"
+assert pytest_localftpserver
 
 
 def upload_textfile(ftpserver, accessor):

tests/test_ifrename_logic.py

@@ -1,4 +1,4 @@
-# pyright: reportGeneralTypeIssues=false
+# pyright: reportGeneralTypeIssues=false,reportAttributeAccessIssue=false
 # pytype: disable=attribute-error
 from __future__ import print_function
 from __future__ import unicode_literals

tests/test_mountingaccessor.py

@@ -20,6 +20,7 @@
     import pytest
 
     pytest.skip(allow_module_level=True)
+    sys.exit(0)  # Let pyright know that this is a dead end
 
 binary_data = b"\x00\x1b\x5b\x95\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xcc\xdd\xee\xff"
 

tests/test_pci.py

@@ -11,6 +11,8 @@
 
 if sys.version_info >= (3, 6):
     from pytest_subprocess.fake_process import FakeProcess
+else:
+    pytest.skip(allow_module_level=True)
 
 class TestInvalid(unittest.TestCase):
 
@@ -185,6 +187,7 @@ def test_videoclass_by_mock_calls(fp):
     def mock_lspci_using_open_testfile(fp):
         """Mock xcp.pci.PCIDevices.Popen() using open(tests/data/lspci-mn)"""
         with open("tests/data/lspci-mn", "rb") as fake_data:
-            assert isinstance(fp, FakeProcess)
+            if sys.version_info >= (3, 6):
+                assert isinstance(fp, FakeProcess)
             fp.register_subprocess(["lspci", "-mn"], stdout=fake_data.read())
         return PCIDevices()