rename test__switch_exc_info.py to test__exc_info.py; wrap test in unittest; add another test

--HG--
rename : greentest/test__switch_exc_info.py => greentest/test__exc_info.py

greentest/test__exc_info.py

+import gevent
+import sys
+import greentest
+
+class ExpectedError(Exception):
+    pass
+
+
+expected_error = ExpectedError('expected exception in hello')
+
+def hello():
+    assert sys.exc_info() == (None, None, None), sys.exc_info()
+    raise expected_error
+
+
+error = Exception('hello')
+
+
+class Test(greentest.TestCase):
+
+    def test1(self):
+        try:
+            raise error
+        except:
+            self.hook_stderr()
+            g = gevent.spawn(hello)
+            g.join()
+            self.assert_stderr_traceback(expected_error)
+            self.assert_stderr('<Greenlet at 0x[0-9a-f]+: hello> failed with ExpectedError')
+            if not isinstance(g.exception, ExpectedError):
+                raise g.exception
+            try:
+                raise
+            except Exception, ex:
+                assert ex is error, (ex, error)
+
+    def test2(self):
+        gevent.core.timer(0, hello)
+        self.hook_stderr()
+        gevent.sleep(0.1)
+        self.assert_stderr_traceback(expected_error)
+        assert sys.exc_info() == (None, None, None)        
+
+
+if __name__ == '__main__':
+    greentest.main()

greentest/test__switch_exc_info.py

-import gevent
-import sys
-
-
-def hello():
-    assert sys.exc_info() == (None, None, None), sys.exc_info()
-
-error = Exception('hello')
-
-try:
-    raise error
-except:
-    gevent.spawn(hello).join()
-    try:
-        raise
-    except Exception, ex:
-        assert ex is error, (ex, error)