Added test for upgrade packages

tests/test_upgrade.py

@@ -0,0 +1,23 @@
+import unittest
+
+from slpkg.utilities import Utilities
+from slpkg.upgrade import Upgrade
+
+
+class TestUtilities(unittest.TestCase):
+
+    def setUp(self):
+        self.utils = Utilities()
+        self.packages: list = ['git', 'wget', 'vim', 'pycharm', 'libreoffice', 'ptpython', 'ranger', 'colored']
+
+    def test_installed_is_upgradable_for_binaries(self):
+        for pkg in self.packages:
+            self.assertFalse(False, Upgrade(['-B', '--bin-repo='], 'slack_patches').is_package_upgradeable(pkg))
+
+    def test_installed_is_upgradable_for_slackbuilds(self):
+        for pkg in self.packages:
+            self.assertFalse(False, Upgrade([]).is_package_upgradeable(pkg))
+
+
+if __name__ == '__main__':
+    unittest.main()