1 files changed, 71 insertions, 0 deletions
diff --git a/tests/units/db/metadata.py b/tests/units/db/metadata.py
new file mode 100755
index 0000000..a0ba512
--- /dev/null
+++ b/tests/units/db/metadata.py
@@ -0,0 +1,71 @@
+#!/usr/bin/env python
+# sugar-lint: disable
+
+from __init__ import tests
+
+from sugar_network import db
+
+
+class MetadataTest(tests.Test):
+
+    def test_Typecast(self):
+        prop = db.Numeric()
+        self.assertEqual(1, prop.typecast(1))
+        self.assertEqual(1, prop.typecast(1.1))
+        self.assertEqual(1, prop.typecast('1'))
+        self.assertRaises(ValueError, prop.typecast, '1.0')
+        self.assertRaises(ValueError, prop.typecast, '')
+        self.assertRaises(TypeError, prop.typecast, None)
+
+        prop = db.Boolean()
+        self.assertEqual(False, prop.typecast(0))
+        self.assertEqual(True, prop.typecast(1))
+        self.assertEqual(True, prop.typecast(1.1))
+        self.assertEqual(True, prop.typecast('1'))
+        self.assertEqual(False, prop.typecast('false'))
+        self.assertEqual(True, prop.typecast(True))
+        self.assertEqual(False, prop.typecast(False))
+        self.assertEqual(False, prop.typecast('False'))
+        self.assertEqual(False, prop.typecast('0'))
+        self.assertEqual(False, prop.typecast(''))
+        self.assertEqual(False, prop.typecast(None))
+
+        prop = db.List(subtype=db.Numeric())
+        self.assertEqual([1], prop.typecast(1))
+        self.assertEqual([], prop.typecast(None))
+        self.assertRaises(ValueError, prop.typecast, '')
+        self.assertEqual([], prop.typecast([]))
+        self.assertEqual([123], prop.typecast('123'))
+        self.assertRaises(ValueError, prop.typecast, 'a')
+        self.assertEqual([123, 4, 5], prop.typecast(['123', 4, 5.6]))
+
+        prop = db.Enum(items=[1, 2])
+        self.assertRaises(ValueError, prop.typecast, 0)
+        self.assertRaises(TypeError, prop.typecast, None)
+        self.assertRaises(ValueError, prop.typecast, '')
+        self.assertRaises(ValueError, prop.typecast, 'A')
+        self.assertRaises(ValueError, prop.typecast, '3')
+        self.assertEqual(1, prop.typecast(1))
+        self.assertEqual(2, prop.typecast(2))
+        self.assertEqual(1, prop.typecast('1'))
+
+        prop = db.List()
+        self.assertEqual([], prop.typecast(None))
+        self.assertEqual([''], prop.typecast(''))
+        self.assertEqual([''], prop.typecast(['']))
+        self.assertEqual([], prop.typecast([]))
+        self.assertEqual([0], prop.typecast(0))
+        self.assertEqual([''], prop.typecast(''))
+        self.assertEqual(['foo'], prop.typecast('foo'))
+
+        prop = db.List(subtype=db.Enum(['A', 'B', 'C']))
+        self.assertRaises(ValueError, prop.typecast, '')
+        self.assertRaises(ValueError, prop.typecast, [''])
+        self.assertEqual([], prop.typecast([]))
+        self.assertEqual(['A', 'B', 'C'], prop.typecast(['A', 'B', 'C']))
+        self.assertRaises(ValueError, prop.typecast, ['a'])
+        self.assertRaises(ValueError, prop.typecast, ['A', 'x'])
+
+
+if __name__ == '__main__':
+    tests.main()