diff --git a/tests/test_checks.py b/tests/test_checks.py
index 2ca5d7a0..2d2e496c 100644
--- a/tests/test_checks.py
+++ b/tests/test_checks.py
@@ -6,7 +6,7 @@ class TestPkgInstalled(unittest.TestCase):
 
     def setUp(self):
         self.check = Check()
-        self.packages = ['Flask', 'colored', 'slpkg']
+        self.packages = ['fish', 'ranger', 'pycharm']
 
     def test_check_exists(self):
         self.assertIsNone(self.check.exists(self.packages))
@@ -15,11 +15,10 @@ class TestPkgInstalled(unittest.TestCase):
         self.assertIsNone(self.check.unsupported(self.packages))
 
     def test_check_installed(self):
-        self.assertIsNone(self.check.installed(self.packages))
+        self.assertListEqual(self.packages, self.check.installed(self.packages))
 
     def test_check_blacklist(self):
-        self.assertListEqual(self.packages,
-                             self.check.blacklist(self.packages))
+        self.assertIsNone(self.check.blacklist(self.packages))
 
 
 if __name__ == "__main__":