minor test improvements and information hiding in builder

1 files changed, 7 insertions, 6 deletions

diff --git a/test/apps/test_info.py b/test/apps/test_info.py
index 60a540e..ad39c64 100644
--- a/test/apps/test_info.py
+++ b/test/apps/test_info.py
@@ -6,9 +6,9 @@ Author: Matthias Baumgartner, 2022
 """
 # imports
 import argparse
+import contextlib
 import io
 import os
-import sys
 import unittest
 
 # objects to test
@@ -19,10 +19,10 @@ from bsie.apps.info import main
 
 class TestIndex(unittest.TestCase):
     def test_predicates(self):
-        stdout, sys.stdout = sys.stdout, io.StringIO()
-        # show predicates infos
-        main(['predicates'])
-        outbuf, sys.stdout = sys.stdout, stdout
+        outbuf = io.StringIO()
+        with contextlib.redirect_stdout(outbuf):
+            # show predicates infos
+            main(['predicates'])
         # verify output
         self.assertSetEqual({pred for pred in outbuf.getvalue().split('\n') if pred != ''}, {
             'http://bsfs.ai/schema/Entity#author',
@@ -32,7 +32,8 @@ class TestIndex(unittest.TestCase):
             })
 
     def test_invalid(self):
-        self.assertRaises(SystemExit, main, ['foobar'])
+        with contextlib.redirect_stderr(io.StringIO()):
+            self.assertRaises(SystemExit, main, ['foobar'])
 
 ## main ##