tests: support skipping

Author: henryiii

tests/CMakeLists.txt

@@ -16,6 +16,29 @@ else()
   cmake_policy(VERSION 3.18)
 endif()
 
+# Only needed for CMake < 3.5 support
+include(CMakeParseArguments)
+
+# Filter out items; print an optional message if any items filtered
+#
+# Usage:
+#   pybind11_filter_tests(LISTNAME file1.cpp file2.cpp ... MESSAGE "")
+#
+function(PYBIND11_FILTER_TESTS LISTNAME)
+  cmake_parse_arguments(ARG "" "MESSAGE" "" ${ARGN})
+  set(PYBIND11_FILTER_TESTS_FOUND OFF)
+  foreach(filename IN LISTS ARG_UNPARSED_ARGUMENTS)
+    list(FIND ${LISTNAME} ${filename} FILE_FOUND)
+    if(FILE_FOUND GREATER -1)
+      list(REMOVE_AT PYBIND11_TEST_FILES ${FILE_FOUND})
+      set(PYBIND11_FILTER_TESTS_FOUND ON)
+    endif()
+  endforeach()
+  if(PYBIND11_FILTER_TESTS_FOUND AND ARG_MESSAGE)
+    message(STATUS "${ARG_MESSAGE}")
+  endif()
+endfunction()
+
 # New Python support
 if(DEFINED Python_EXECUTABLE)
   set(PYTHON_EXECUTABLE "${Python_EXECUTABLE}")
@@ -65,7 +88,7 @@ set(PYBIND11_TEST_FILES
     test_eigen.cpp
     test_enum.cpp
     test_eval.cpp
-    #AV  this fails with PGI test_exceptions.cpp
+    test_exceptions.cpp
     test_factory_constructors.cpp
     test_gil_scoped.cpp
     test_iostream.cpp
@@ -82,13 +105,12 @@ set(PYBIND11_TEST_FILES
     test_pickling.cpp
     test_pytypes.cpp
     test_sequences_and_iterators.cpp
-    #AV  this fails with PGI test_smart_ptr.cpp
+    test_smart_ptr.cpp
     test_stl.cpp
     test_stl_binders.cpp
     test_tagbased_polymorphic.cpp
     test_union.cpp
-    #AV  this fails with PGI test_virtual_functions.cpp
-)
+    test_virtual_functions.cpp)
 
 # Invoking cmake with something like:
 #     cmake -DPYBIND11_TEST_OVERRIDE="test_callbacks.cpp;test_pickling.cpp" ..
@@ -98,11 +120,15 @@ if(PYBIND11_TEST_OVERRIDE)
   set(PYBIND11_TEST_FILES ${PYBIND11_TEST_OVERRIDE})
 endif()
 
-# Skip test_async for Python < 3.5
-list(FIND PYBIND11_TEST_FILES test_async.cpp PYBIND11_TEST_FILES_ASYNC_I)
-if((PYBIND11_TEST_FILES_ASYNC_I GREATER -1) AND (PYTHON_VERSION VERSION_LESS 3.5))
-  message(STATUS "Skipping test_async because Python version ${PYTHON_VERSION} < 3.5")
-  list(REMOVE_AT PYBIND11_TEST_FILES ${PYBIND11_TEST_FILES_ASYNC_I})
+if(PYTHON_VERSION VERSION_LESS 3.5)
+  pybind11_filter_tests(PYBIND11_TEST_FILES test_async.cpp MESSAGE
+                        "Skipping test_async on Python 2")
+endif()
+
+if(CMAKE_CXX_COMPILER_ID MATCHES "PGI")
+  pybind11_filter_tests(
+    PYBIND11_TEST_FILES test_exceptions.cpp test_smart_ptr.cpp test_virtual_functions.cpp MESSAGE
+    "Skipping tests that do not support PGI compilers")
 endif()
 
 string(REPLACE ".cpp" ".py" PYBIND11_PYTEST_FILES "${PYBIND11_TEST_FILES}")

tests/test_exceptions.py

@@ -3,8 +3,8 @@
 
 import pytest
 
-from pybind11_tests import exceptions as m
-import pybind11_cross_module_tests as cm
+m = pytest.importorskip("pybind11_tests.exceptions")
+import pybind11_cross_module_tests as cm  # noqa: E402
 
 
 def test_std_exception(msg):

tests/test_smart_ptr.py

@@ -1,7 +1,9 @@
 # -*- coding: utf-8 -*-
 import pytest
-from pybind11_tests import smart_ptr as m
-from pybind11_tests import ConstructorStats
+
+m = pytest.importorskip("pybind11_tests.smart_ptr")
+
+from pybind11_tests import ConstructorStats  # noqa: E402
 
 
 def test_smart_ptr(capture):

tests/test_virtual_functions.py

@@ -3,8 +3,9 @@
 
 import env  # noqa: F401
 
-from pybind11_tests import virtual_functions as m
-from pybind11_tests import ConstructorStats
+m = pytest.importorskip("pybind11_tests.virtual_functions")
+
+from pybind11_tests import ConstructorStats  # noqa: E402
 
 
 def test_override(capture, msg):