1 files changed, 31 insertions, 0 deletions
diff --git a/tests/test_cache_invocation.py b/tests/test_cache_invocation.py
new file mode 100644
index 0000000..a608034
--- /dev/null
+++ b/tests/test_cache_invocation.py
@@ -0,0 +1,31 @@
+#!/usr/bin/python3
+import unittest
+
+import apt_pkg
+import testcommon
+
+import apt.progress.base
+
+
+class TestCache(testcommon.TestCase):
+    """Test invocation of apt_pkg.Cache()"""
+
+    def test_wrong_invocation(self):
+        """cache_invocation: Test wrong invocation."""
+        apt_cache = apt_pkg.Cache(progress=None)
+
+        self.assertRaises(ValueError, apt_pkg.Cache, apt_cache)
+        self.assertRaises(
+            ValueError, apt_pkg.Cache, apt.progress.base.AcquireProgress()
+        )
+        self.assertRaises(ValueError, apt_pkg.Cache, 0)
+
+    def test_proper_invocation(self):
+        """cache_invocation: Test correct invocation."""
+        apt_cache = apt_pkg.Cache(progress=None)
+        apt_depcache = apt_pkg.DepCache(apt_cache)
+        self.assertNotEqual(apt_depcache, None)
+
+
+if __name__ == "__main__":
+    unittest.main()