turn the pytest_logwarning hook historic

_pytest/config.py

@@ -16,6 +16,8 @@ hookspec = HookspecMarker("pytest")
 
 # pytest startup
 #
+
+
 class ConftestImportFailure(Exception):
     def __init__(self, path, excinfo):
         Exception.__init__(self, path, excinfo)
@@ -135,8 +137,6 @@ class PytestPluginManager(PluginManager):
     """
     def __init__(self):
         super(PytestPluginManager, self).__init__("pytest", implprefix="pytest_")
-        self._warnings = []
-        self._pushwarning = self._warnings.append
         self._conftest_plugins = set()
 
         # state related to local conftest plugins
@@ -227,30 +227,14 @@ class PytestPluginManager(PluginManager):
             "trylast: mark a hook implementation function such that the "
             "plugin machinery will try to call it last/as late as possible.")
 
-    def pytest_plugin_registered(self, plugin):
-        if self.get_name(plugin) == 'terminalreporter':
-            warnings = self._warnings
-            self._warnings = None
-            config = self.get_plugin('pytestconfig')
-
-            def pushwarning(args):
-                assert args.pop('nodeid', None) is None
-                config.warn(**args)
-
-            self._pushwarning = pushwarning
-            for warning in warnings:
-                config.hook.pytest_logwarning(**warning)
-
     def _warn(self, message):
-        if isinstance(message, dict):
-            self._pushwarning(message)
-        else:
-            self._pushwarning({
-                'code': 'I1',
-                'message': message,
-                'fslocation': None,
-                'nodeid': None,
-            })
+        kwargs = message if isinstance(message, dict) else {
+            'code': 'I1',
+            'message': message,
+            'fslocation': None,
+            'nodeid': None,
+        }
+        self.hook.pytest_logwarning.call_historic(kwargs=kwargs)
 
     #
     # internal API for local conftest plugin handling
@@ -726,6 +710,7 @@ class MyOptionParser(argparse.ArgumentParser):
             getattr(args, FILE_OR_DIR).extend(argv)
         return args
 
+
 class DropShorterLongHelpFormatter(argparse.HelpFormatter):
     """shorten help for long options that differ only in extra hyphens
 
@@ -845,8 +830,9 @@ class Config(object):
 
     def warn(self, code, message, fslocation=None):
         """ generate a warning for this test session. """
-        self.hook.pytest_logwarning(code=code, message=message,
-                                    fslocation=fslocation, nodeid=None)
+        self.hook.pytest_logwarning.call_historic(kwargs=dict(
+            code=code, message=message,
+            fslocation=fslocation, nodeid=None))
 
     def get_terminal_writer(self):
         return self.pluginmanager.get_plugin("terminalreporter")._tw

_pytest/hookspec.py

@@ -249,6 +249,8 @@ def pytest_report_teststatus(report):
 def pytest_terminal_summary(terminalreporter):
     """ add additional section in terminal summary reporting.  """
 
+
+@hookspec(historic=True)
 def pytest_logwarning(message, code, nodeid, fslocation):
     """ process a warning specified by a message, a code string,
     a nodeid and fslocation (both of which may be None

_pytest/main.py

@@ -279,9 +279,9 @@ class Node(object):
         else:
             fslocation = "%s:%s" % fslocation[:2]
 
-        self.ihook.pytest_logwarning(code=code, message=message,
-                                     nodeid=self.nodeid,
-                                     fslocation=fslocation)
+        self.ihook.pytest_logwarning.call_historic(kwargs=dict(
+            code=code, message=message,
+            nodeid=self.nodeid, fslocation=fslocation))
 
     # methods for ordering nodes
     @property
@@ -742,5 +742,3 @@ class Session(FSCollector):
                     for x in self.genitems(subnode):
                         yield x
             node.ihook.pytest_collectreport(report=rep)
-
-

testing/test_pluginmanager.py

@@ -129,14 +129,21 @@ class TestPytestPluginInteractions:
             undo()
 
     def test_warn_on_deprecated_multicall(self, pytestpm):
+        warnings = []
+
+        class get_warnings:
+            def pytest_logwarning(self, message):
+                warnings.append(message)
+
         class Plugin:
             def pytest_configure(self, __multicall__):
                 pass
 
-        before = list(pytestpm._warnings)
+        pytestpm.register(get_warnings())
+        before = list(warnings)
         pytestpm.register(Plugin())
-        assert len(pytestpm._warnings) == len(before) + 1
-        assert "deprecated" in pytestpm._warnings[-1]["message"]
+        assert len(warnings) == len(before) + 1
+        assert "deprecated" in warnings[-1]
 
 
 def test_namespace_has_default_and_env_plugins(testdir):