[svn r63913] make py.log.APIWARN available

--HG--
branch : trunk

py/log/testing/test_warning.py

@@ -0,0 +1,48 @@
+import py
+from py.__.log.warning import WarningPlugin
+mypath = py.magic.autopath()
+
+class TestWarningPlugin:
+    def setup_method(self, method):
+        self.pluginmanager = py._com.Registry()
+        self.wb = WarningPlugin(self.pluginmanager)
+        self.pluginmanager.register(self)
+        self.warnings = []
+
+    def pyevent__WARNING(self, warning):
+        self.warnings.append(warning)
+
+    def test_event_generation(self):
+        self.wb.warn("hello")
+        assert len(self.warnings) == 1
+
+    def test_location(self):
+        self.wb.warn("again")
+        warning = self.warnings[0] 
+        lno = self.test_location.im_func.func_code.co_firstlineno + 1
+        assert warning.lineno == lno
+        assert warning.path == mypath 
+        locstr = "%s:%d: " %(mypath, lno+1,)
+        assert repr(warning).startswith(locstr)
+        assert str(warning) == warning.msg 
+
+    def test_stacklevel(self):
+        def f():
+            self.wb.warn("x", stacklevel=2)
+        # 3
+        # 4
+        f()
+        lno = self.test_stacklevel.im_func.func_code.co_firstlineno + 5
+        warning = self.warnings[0]
+        assert warning.lineno == lno
+
+    def test_forwarding_to_warnings_module(self):
+        py.test.deprecated_call(self.wb.warn, "x")
+
+    def test_apiwarn(self):
+        self.wb.apiwarn("3.0", "xxx")
+        warning = self.warnings[0] 
+        assert warning.msg == "xxx (since version 3.0)"
+
+def test_default():
+    assert py._com.comregistry.isregistered(py.log.APIWARN.im_self)