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-rw-r--r--src/tests/test_config_diff.py70
1 files changed, 70 insertions, 0 deletions
diff --git a/src/tests/test_config_diff.py b/src/tests/test_config_diff.py
new file mode 100644
index 000000000..f61cbc4a2
--- /dev/null
+++ b/src/tests/test_config_diff.py
@@ -0,0 +1,70 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2023 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+import os
+import vyos.configtree
+
+from unittest import TestCase
+
+class TestConfigDiff(TestCase):
+ def setUp(self):
+ with open('tests/data/config.left', 'r') as f:
+ config_string = f.read()
+ self.config_left = vyos.configtree.ConfigTree(config_string)
+
+ with open('tests/data/config.right', 'r') as f:
+ config_string = f.read()
+ self.config_right = vyos.configtree.ConfigTree(config_string)
+
+ self.config_null = vyos.configtree.ConfigTree('')
+
+ def test_unit(self):
+ diff = vyos.configtree.DiffTree(self.config_left, self.config_null)
+ sub = diff.sub
+ self.assertEqual(sub.to_string(), self.config_left.to_string())
+
+ diff = vyos.configtree.DiffTree(self.config_null, self.config_left)
+ add = diff.add
+ self.assertEqual(add.to_string(), self.config_left.to_string())
+
+ def test_symmetry(self):
+ lr_diff = vyos.configtree.DiffTree(self.config_left,
+ self.config_right)
+ rl_diff = vyos.configtree.DiffTree(self.config_right,
+ self.config_left)
+
+ sub = lr_diff.sub
+ add = rl_diff.add
+ self.assertEqual(sub.to_string(), add.to_string())
+ add = lr_diff.add
+ sub = rl_diff.sub
+ self.assertEqual(add.to_string(), sub.to_string())
+
+ def test_identity(self):
+ lr_diff = vyos.configtree.DiffTree(self.config_left,
+ self.config_right)
+
+ sub = lr_diff.sub
+ inter = lr_diff.inter
+ add = lr_diff.add
+
+ r_union = vyos.configtree.union(add, inter)
+ l_union = vyos.configtree.union(sub, inter)
+
+ self.assertEqual(r_union.to_string(),
+ self.config_right.to_string(ordered_values=True))
+ self.assertEqual(l_union.to_string(),
+ self.config_left.to_string(ordered_values=True))