#7301: add the environment variable $PYTHONWARNINGS to supplement the -W
command line option
patch from Brian Curtin
diff --git a/Lib/test/test_warnings.py b/Lib/test/test_warnings.py
index a0a65b4..e8df368 100644
--- a/Lib/test/test_warnings.py
+++ b/Lib/test/test_warnings.py
@@ -4,6 +4,7 @@
import StringIO
import sys
import unittest
+import subprocess
from test import test_support
import warning_tests
@@ -674,6 +675,42 @@
module = py_warnings
+class EnvironmentVariableTests(BaseTest):
+
+ def test_single_warning(self):
+ newenv = os.environ.copy()
+ newenv["PYTHONWARNINGS"] = "ignore::DeprecationWarning"
+ p = subprocess.Popen([sys.executable,
+ "-c", "import sys; sys.stdout.write(str(sys.warnoptions))"],
+ stdout=subprocess.PIPE, env=newenv)
+ self.assertEqual(p.stdout.read(), "['ignore::DeprecationWarning']")
+
+ def test_comma_separated_warnings(self):
+ newenv = os.environ.copy()
+ newenv["PYTHONWARNINGS"] = ("ignore::DeprecationWarning,"
+ "ignore::UnicodeWarning")
+ p = subprocess.Popen([sys.executable,
+ "-c", "import sys; sys.stdout.write(str(sys.warnoptions))"],
+ stdout=subprocess.PIPE, env=newenv)
+ self.assertEqual(p.stdout.read(),
+ "['ignore::DeprecationWarning', 'ignore::UnicodeWarning']")
+
+ def test_envvar_and_command_line(self):
+ newenv = os.environ.copy()
+ newenv["PYTHONWARNINGS"] = "ignore::DeprecationWarning"
+ p = subprocess.Popen([sys.executable, "-W" "ignore::UnicodeWarning",
+ "-c", "import sys; sys.stdout.write(str(sys.warnoptions))"],
+ stdout=subprocess.PIPE, env=newenv)
+ self.assertEqual(p.stdout.read(),
+ "['ignore::UnicodeWarning', 'ignore::DeprecationWarning']")
+
+class CEnvironmentVariableTests(EnvironmentVariableTests):
+ module = c_warnings
+
+class PyEnvironmentVariableTests(EnvironmentVariableTests):
+ module = py_warnings
+
+
def test_main():
py_warnings.onceregistry.clear()
c_warnings.onceregistry.clear()
@@ -683,6 +720,8 @@
_WarningsTests,
CWarningsDisplayTests, PyWarningsDisplayTests,
CCatchWarningTests, PyCatchWarningTests,
+ CEnvironmentVariableTests,
+ PyEnvironmentVariableTests
)