deprecate direct node construction and introduce Node.from_parent

testing/python/collect.py

@@ -281,10 +281,10 @@ class TestFunction:
         from _pytest.fixtures import FixtureManager
 
         config = testdir.parseconfigure()
-        session = testdir.Session(config)
+        session = testdir.Session.from_config(config)
         session._fixturemanager = FixtureManager(session)
 
-        return pytest.Function(config=config, parent=session, **kwargs)
+        return pytest.Function.from_parent(config=config, parent=session, **kwargs)
 
     def test_function_equality(self, testdir, tmpdir):
         def func1():
@@ -1024,7 +1024,7 @@ class TestReportInfo:
                     return "ABCDE", 42, "custom"
             def pytest_pycollect_makeitem(collector, name, obj):
                 if name == "test_func":
-                    return MyFunction(name, parent=collector)
+                    return MyFunction.from_parent(name=name, parent=collector)
         """
         )
         item = testdir.getitem("def test_func(): pass")

testing/python/integration.py

@@ -10,7 +10,7 @@ class TestOEJSKITSpecials:
             import pytest
             def pytest_pycollect_makeitem(collector, name, obj):
                 if name == "MyClass":
-                    return MyCollector(name, parent=collector)
+                    return MyCollector.from_parent(collector, name=name)
             class MyCollector(pytest.Collector):
                 def reportinfo(self):
                     return self.fspath, 3, "xyz"
@@ -40,7 +40,7 @@ class TestOEJSKITSpecials:
             import pytest
             def pytest_pycollect_makeitem(collector, name, obj):
                 if name == "MyClass":
-                    return MyCollector(name, parent=collector)
+                    return MyCollector.from_parent(collector, name=name)
             class MyCollector(pytest.Collector):
                 def reportinfo(self):
                     return self.fspath, 3, "xyz"

testing/python/metafunc.py

@@ -30,7 +30,7 @@ class TestMetafunc:
 
         names = fixtures.getfuncargnames(func)
         fixtureinfo = FixtureInfo(names)
-        definition = DefinitionMock(func)
+        definition = DefinitionMock._create(func)
         return python.Metafunc(definition, fixtureinfo, config)
 
     def test_no_funcargs(self, testdir):