1 files changed, 128 insertions, 0 deletions
diff --git a/u1db/tests/test_inmemory.py b/u1db/tests/test_inmemory.py
new file mode 100644
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+++ b/u1db/tests/test_inmemory.py
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+# Copyright 2011 Canonical Ltd.
+#
+# This file is part of u1db.
+#
+# u1db is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License version 3
+# as published by the Free Software Foundation.
+#
+# u1db 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 Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with u1db.  If not, see <http://www.gnu.org/licenses/>.
+
+"""Test in-memory backend internals."""
+
+from u1db import (
+    errors,
+    tests,
+    )
+from u1db.backends import inmemory
+
+
+simple_doc = '{"key": "value"}'
+
+
+class TestInMemoryDatabaseInternals(tests.TestCase):
+
+    def setUp(self):
+        super(TestInMemoryDatabaseInternals, self).setUp()
+        self.db = inmemory.InMemoryDatabase('test')
+
+    def test__allocate_doc_rev_from_None(self):
+        self.assertEqual('test:1', self.db._allocate_doc_rev(None))
+
+    def test__allocate_doc_rev_incremental(self):
+        self.assertEqual('test:2', self.db._allocate_doc_rev('test:1'))
+
+    def test__allocate_doc_rev_other(self):
+        self.assertEqual('replica:1|test:1',
+                         self.db._allocate_doc_rev('replica:1'))
+
+    def test__get_replica_uid(self):
+        self.assertEqual('test', self.db._replica_uid)
+
+
+class TestInMemoryIndex(tests.TestCase):
+
+    def test_has_name_and_definition(self):
+        idx = inmemory.InMemoryIndex('idx-name', ['key'])
+        self.assertEqual('idx-name', idx._name)
+        self.assertEqual(['key'], idx._definition)
+
+    def test_evaluate_json(self):
+        idx = inmemory.InMemoryIndex('idx-name', ['key'])
+        self.assertEqual(['value'], idx.evaluate_json(simple_doc))
+
+    def test_evaluate_json_field_None(self):
+        idx = inmemory.InMemoryIndex('idx-name', ['missing'])
+        self.assertEqual([], idx.evaluate_json(simple_doc))
+
+    def test_evaluate_json_subfield_None(self):
+        idx = inmemory.InMemoryIndex('idx-name', ['key', 'missing'])
+        self.assertEqual([], idx.evaluate_json(simple_doc))
+
+    def test_evaluate_multi_index(self):
+        doc = '{"key": "value", "key2": "value2"}'
+        idx = inmemory.InMemoryIndex('idx-name', ['key', 'key2'])
+        self.assertEqual(['value\x01value2'],
+                         idx.evaluate_json(doc))
+
+    def test_update_ignores_None(self):
+        idx = inmemory.InMemoryIndex('idx-name', ['nokey'])
+        idx.add_json('doc-id', simple_doc)
+        self.assertEqual({}, idx._values)
+
+    def test_update_adds_entry(self):
+        idx = inmemory.InMemoryIndex('idx-name', ['key'])
+        idx.add_json('doc-id', simple_doc)
+        self.assertEqual({'value': ['doc-id']}, idx._values)
+
+    def test_remove_json(self):
+        idx = inmemory.InMemoryIndex('idx-name', ['key'])
+        idx.add_json('doc-id', simple_doc)
+        self.assertEqual({'value': ['doc-id']}, idx._values)
+        idx.remove_json('doc-id', simple_doc)
+        self.assertEqual({}, idx._values)
+
+    def test_remove_json_multiple(self):
+        idx = inmemory.InMemoryIndex('idx-name', ['key'])
+        idx.add_json('doc-id', simple_doc)
+        idx.add_json('doc2-id', simple_doc)
+        self.assertEqual({'value': ['doc-id', 'doc2-id']}, idx._values)
+        idx.remove_json('doc-id', simple_doc)
+        self.assertEqual({'value': ['doc2-id']}, idx._values)
+
+    def test_keys(self):
+        idx = inmemory.InMemoryIndex('idx-name', ['key'])
+        idx.add_json('doc-id', simple_doc)
+        self.assertEqual(['value'], idx.keys())
+
+    def test_lookup(self):
+        idx = inmemory.InMemoryIndex('idx-name', ['key'])
+        idx.add_json('doc-id', simple_doc)
+        self.assertEqual(['doc-id'], idx.lookup(['value']))
+
+    def test_lookup_multi(self):
+        idx = inmemory.InMemoryIndex('idx-name', ['key'])
+        idx.add_json('doc-id', simple_doc)
+        idx.add_json('doc2-id', simple_doc)
+        self.assertEqual(['doc-id', 'doc2-id'], idx.lookup(['value']))
+
+    def test__find_non_wildcards(self):
+        idx = inmemory.InMemoryIndex('idx-name', ['k1', 'k2', 'k3'])
+        self.assertEqual(-1, idx._find_non_wildcards(('a', 'b', 'c')))
+        self.assertEqual(2, idx._find_non_wildcards(('a', 'b', '*')))
+        self.assertEqual(3, idx._find_non_wildcards(('a', 'b', 'c*')))
+        self.assertEqual(2, idx._find_non_wildcards(('a', 'b*', '*')))
+        self.assertEqual(0, idx._find_non_wildcards(('*', '*', '*')))
+        self.assertEqual(1, idx._find_non_wildcards(('a*', '*', '*')))
+        self.assertRaises(errors.InvalidValueForIndex,
+            idx._find_non_wildcards, ('a', 'b'))
+        self.assertRaises(errors.InvalidValueForIndex,
+            idx._find_non_wildcards, ('a', 'b', 'c', 'd'))
+        self.assertRaises(errors.InvalidGlobbing,
+            idx._find_non_wildcards, ('*', 'b', 'c'))