From ad2002c19cad65be60dd1eb6ad13589156885365 Mon Sep 17 00:00:00 2001
From: Massimiliano Pippi <mpippi@gmail.com>
Date: Mon, 22 Jul 2019 12:35:03 +0200
Subject: [PATCH 1/2] assert output is empty

---
 test/test_main.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/test/test_main.py b/test/test_main.py
index 5d03b6a9c35..c227984e92b 100644
--- a/test/test_main.py
+++ b/test/test_main.py
@@ -33,11 +33,14 @@ def test_command_help():
 
 
 def test_command_lib_list():
+    """
+    When ouput is empty, nothing is printed out, no matter the output format
+    """
     result = run_command('lib list')
     assert result.ok
     assert result.stderr == ''
     result = run_command('lib list', '--format json')
-    assert '{}' == result.stdout
+    assert '' == result.stdout
 
 
 def test_command_lib_install():

From 450a55c903b3ca5b621f70214b116218114b1da2 Mon Sep 17 00:00:00 2001
From: Massimiliano Pippi <mpippi@gmail.com>
Date: Mon, 22 Jul 2019 16:28:49 +0200
Subject: [PATCH 2/2] be consistent in style

---
 test/test_main.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/test_main.py b/test/test_main.py
index c227984e92b..839c774592e 100644
--- a/test/test_main.py
+++ b/test/test_main.py
@@ -38,7 +38,7 @@ def test_command_lib_list():
     """
     result = run_command('lib list')
     assert result.ok
-    assert result.stderr == ''
+    assert '' == result.stderr
     result = run_command('lib list', '--format json')
     assert '' == result.stdout