fixes pytest-dev#1210 adds stderr write for pytest.exit(msg) call

Author: doomb0t

AUTHORS

@@ -96,3 +96,4 @@ Tom Viner
 Trevor Bekolay
 Wouter van Ackooy
 Bernard Pratz
+Jon Sonesen

CHANGELOG.rst

@@ -31,14 +31,16 @@
   deprecated but still present. Thanks to `@RedBeardCode`_ and `@tomviner`_
   for PR (`#1626`_).
 
-*
+* Add stderr write for pytest.exit(msg) calls previously the message was never shown
 
+*
 .. _#1580: https://github.com/pytest-dev/pytest/pull/1580
 .. _#1605: https://github.com/pytest-dev/pytest/issues/1605
 .. _#1597: https://github.com/pytest-dev/pytest/pull/1597
 .. _#460: https://github.com/pytest-dev/pytest/pull/460
 .. _#1553: https://github.com/pytest-dev/pytest/issues/1553
 .. _#1626: https://github.com/pytest-dev/pytest/pull/1626
+.. _#1210: https://github.com/pytest-dev/pytest/issues/1210
 
 .. _@graingert: https://github.com/graingert
 .. _@taschini: https://github.com/taschini

_pytest/main.py

@@ -90,7 +90,8 @@ def wrap_session(config, doit):
             session.exitstatus = doit(config, session) or 0
         except pytest.UsageError:
             raise
-        except KeyboardInterrupt:
+        except KeyboardInterrupt as e:
+            sys.stderr.write('{0}: {1}\n'.format(type(e).__name__, e.msg))
             excinfo = _pytest._code.ExceptionInfo()
             config.hook.pytest_keyboard_interrupt(excinfo=excinfo)
             session.exitstatus = EXIT_INTERRUPTED

testing/test_runner.py

@@ -457,6 +457,18 @@ def test_pytest_fail():
         s = excinfo.exconly(tryshort=True)
         assert s.startswith("Failed")
 
+def test_pytest_exit_msg(testdir):
+    testdir.makeconftest("""
+    import pytest
+
+    def pytest_configure(config):
+        pytest.exit('oh noes')
+    """)
+    result = testdir.runpytest()
+    result.stderr.fnmatch_lines([
+        "Exit: oh noes",
+    ])
+
 def test_pytest_fail_notrace(testdir):
     testdir.makepyfile("""
         import pytest