ntdb: next-generation trivial key-value database

[ccan] / ccan / ntdb / test / python-api.py

diff --git a/ccan/ntdb/test/python-api.py b/ccan/ntdb/test/python-api.py
new file mode 100644 (file)
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+++ b/ccan/ntdb/test/python-api.py
@@ -0,0 +1,154 @@
+#!/usr/bin/env python
+# Some simple tests for the Python bindings for TDB
+# Note that this tests the interface of the Python bindings
+# It does not test tdb itself.
+#
+# Copyright (C) 2007-2013 Jelmer Vernooij <jelmer@samba.org>
+# Published under the GNU LGPLv3 or later
+
+import ntdb
+from unittest import TestCase
+import os, tempfile
+
+
+class OpenTdbTests(TestCase):
+
+    def test_nonexistent_read(self):
+        self.assertRaises(IOError, ntdb.Ntdb, "/some/nonexistent/file", 0,
+                ntdb.DEFAULT, os.O_RDWR)
+
+class CloseTdbTests(TestCase):
+
+    def test_double_close(self):
+        self.ntdb = ntdb.Ntdb(tempfile.mkstemp()[1], ntdb.DEFAULT,
+                           os.O_CREAT|os.O_RDWR)
+        self.assertNotEqual(None, self.ntdb)
+
+        # ensure that double close does not crash python
+        self.ntdb.close()
+        self.ntdb.close()
+
+        # Check that further operations do not crash python
+        self.assertRaises(RuntimeError, lambda: self.ntdb.transaction_start())
+
+        self.assertRaises(RuntimeError, lambda: self.ntdb["bar"])
+
+
+class InternalTdbTests(TestCase):
+
+    def test_repr(self):
+        self.ntdb = ntdb.Ntdb()
+
+        # repr used to crash on internal db
+        self.assertEquals(repr(self.ntdb), "Ntdb(<internal>)")
+
+
+class SimpleTdbTests(TestCase):
+
+    def setUp(self):
+        super(SimpleTdbTests, self).setUp()
+        self.ntdb = ntdb.Ntdb(tempfile.mkstemp()[1], ntdb.DEFAULT,
+                           os.O_CREAT|os.O_RDWR)
+        self.assertNotEqual(None, self.ntdb)
+
+    def tearDown(self):
+        del self.ntdb
+
+    def test_repr(self):
+        self.assertTrue(repr(self.ntdb).startswith("Ntdb('"))
+
+    def test_lockall(self):
+        self.ntdb.lock_all()
+
+    def test_unlockall(self):
+        self.ntdb.lock_all()
+        self.ntdb.unlock_all()
+
+    def test_lockall_read(self):
+        self.ntdb.read_lock_all()
+        self.ntdb.read_unlock_all()
+
+    def test_store(self):
+        self.ntdb.store("bar", "bla")
+        self.assertEquals("bla", self.ntdb.get("bar"))
+
+    def test_getitem(self):
+        self.ntdb["bar"] = "foo"
+        self.assertEquals("foo", self.ntdb["bar"])
+
+    def test_delete(self):
+        self.ntdb["bar"] = "foo"
+        del self.ntdb["bar"]
+        self.assertRaises(KeyError, lambda: self.ntdb["bar"])
+
+    def test_contains(self):
+        self.ntdb["bla"] = "bloe"
+        self.assertTrue("bla" in self.ntdb)
+
+    def test_keyerror(self):
+        self.assertRaises(KeyError, lambda: self.ntdb["bla"])
+
+    def test_name(self):
+        self.ntdb.filename
+
+    def test_iterator(self):
+        self.ntdb["bla"] = "1"
+        self.ntdb["brainslug"] = "2"
+        l = list(self.ntdb)
+        l.sort()
+        self.assertEquals(["bla", "brainslug"], l)
+
+    def test_transaction_cancel(self):
+        self.ntdb["bloe"] = "2"
+        self.ntdb.transaction_start()
+        self.ntdb["bloe"] = "1"
+        self.ntdb.transaction_cancel()
+        self.assertEquals("2", self.ntdb["bloe"])
+
+    def test_transaction_commit(self):
+        self.ntdb["bloe"] = "2"
+        self.ntdb.transaction_start()
+        self.ntdb["bloe"] = "1"
+        self.ntdb.transaction_commit()
+        self.assertEquals("1", self.ntdb["bloe"])
+
+    def test_transaction_prepare_commit(self):
+        self.ntdb["bloe"] = "2"
+        self.ntdb.transaction_start()
+        self.ntdb["bloe"] = "1"
+        self.ntdb.transaction_prepare_commit()
+        self.ntdb.transaction_commit()
+        self.assertEquals("1", self.ntdb["bloe"])
+
+    def test_iterkeys(self):
+        self.ntdb["bloe"] = "2"
+        self.ntdb["bla"] = "25"
+        i = self.ntdb.iterkeys()
+        self.assertEquals(set(["bloe", "bla"]), set([i.next(), i.next()]))
+
+    def test_clear(self):
+        self.ntdb["bloe"] = "2"
+        self.ntdb["bla"] = "25"
+        self.assertEquals(2, len(list(self.ntdb)))
+        self.ntdb.clear()
+        self.assertEquals(0, len(list(self.ntdb)))
+
+    def test_len(self):
+        self.assertEquals(0, len(list(self.ntdb)))
+        self.ntdb["entry"] = "value"
+        self.assertEquals(1, len(list(self.ntdb)))
+
+    def test_add_flags(self):
+        self.ntdb.add_flag(ntdb.NOMMAP)
+        self.ntdb.remove_flag(ntdb.NOMMAP)
+
+
+class VersionTests(TestCase):
+
+    def test_present(self):
+        self.assertTrue(isinstance(ntdb.__version__, str))
+
+
+if __name__ == '__main__':
+    import unittest
+    unittest.TestProgram()