Further Resolve Issue 653

Makefile

@@ -7,10 +7,10 @@ dev:
 	docker-compose exec cement /bin/bash
 
 test: comply
-	python -m pytest -v --cov=cement --cov-report=term --cov-report=html:coverage-report tests/
+	python -m pytest -v --cov=cement --cov-report=term --cov-report=html:coverage-report --capture=sys tests/
 
 test-core: comply
-	python -m pytest -v --cov=cement.core --cov-report=term --cov-report=html:coverage-report tests/core
+	python -m pytest -v --cov=cement.core --cov-report=term --cov-report=html:coverage-report --capture=sys tests/core
 
 virtualenv:
 	virtualenv --prompt '|> cement <| ' env

cement/core/foundation.py

@@ -1023,7 +1023,8 @@ class App(meta.MetaMixin):
 
         # reattach our stdout if in quiet mode to avoid lingering file handles
         # resolves: https://github.com/datafolklabs/cement/issues/653
-        self._unsuppress_output()
+        if self._meta.quiet is True:
+            self._unsuppress_output()
 
         # in theory, this should happen last-last... but at that point `self`
         # would be kind of busted after _unlay_cement() is run.
@@ -1145,11 +1146,19 @@ class App(meta.MetaMixin):
 
     def _unsuppress_output(self):
         LOG.debug('unsuppressing all console output')
-        sys.stdout.close()
-        sys.stderr.close()
+
+        # don't accidentally close the actual <stdout>/<stderr>
+        if hasattr(sys.stdout, 'name') and sys.stdout.name != '<stdout>':
+            sys.stdout.close()
+        if hasattr(sys.stderr, 'name') and sys.stderr.name != '<stderr>':
+            sys.stderr.close()
         sys.stdout = self.__saved_stdout__
         sys.stderr = self.__saved_stderr__
 
+        # have to resetup the log handler to unsuppress console output
+        if self.log is not None:
+            self._setup_log_handler()
+
     def _lay_cement(self):
         """Initialize the framework."""
         LOG.debug("laying cement for the '%s' application" %

tests/core/test_foundation.py

@@ -641,23 +641,46 @@ def test_pre_render_hook():
 
 def test_quiet():
     stdout_ref = sys.stdout
-    with TestApp(argv=['--quiet']) as app:
-        app.run()
-        app.render({})  # coverage
-        assert app.quiet is True
-        assert stdout_ref is not sys.stdout
+    stderr_ref = sys.stderr
+    try:
+        with TestApp(argv=['--quiet']) as app:
+            app.run()
+            app.render({})  # coverage
+            assert app.quiet is True
+            assert stdout_ref is not sys.stdout
 
-    sys.stdout = stdout_ref
-    with TestApp(argv=['--quiet', '--debug']) as app:
-        app.run()
-        assert stdout_ref is sys.stdout
+        sys.stdout = stdout_ref
+        sys.stderr = stderr_ref
+        with TestApp(argv=['--quiet', '--debug']) as app:
+            app.run()
+            assert stdout_ref is sys.stdout
 
-    sys.stdout = stdout_ref
-    with TestApp(argv=['--quiet'], debug=True) as app:
-        app.run()
-        assert stdout_ref is sys.stdout
+        sys.stdout = stdout_ref
+        sys.stderr = stderr_ref
+        with TestApp(argv=['--quiet'], debug=True) as app:
+            app.run()
+            assert stdout_ref is sys.stdout
 
-    sys.stdout = stdout_ref
+        sys.stdout = stdout_ref
+        sys.stderr = stderr_ref
+    except Exception:
+        sys.stdout = stdout_ref
+        sys.stderr = stderr_ref
+        raise
+
+
+def test_issue_653():
+    with pytest.raises(SystemExit):
+        with App('myapp', argv=[], exit_on_close=True) as app:
+            app.run()
+    with pytest.raises(SystemExit):
+        with App('myapp', argv=["--quiet"], exit_on_close=True) as app:
+            app.run()
+    with App('myapp', argv=[]) as app:
+        print(app._meta.exit_on_close)
+        app.run()
+    with App('myapp', argv=["--quiet"]) as app:
+        app.run()
 
 
 def test_none_template_handler():