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-rw-r--r--tests/glibext/singleton.py101
1 files changed, 101 insertions, 0 deletions
diff --git a/tests/glibext/singleton.py b/tests/glibext/singleton.py
new file mode 100644
index 0000000..b0608f0
--- /dev/null
+++ b/tests/glibext/singleton.py
@@ -0,0 +1,101 @@
+
+from chrysacase import ChrysalideTestCase
+from gi.repository import GObject
+from pychrysalide.glibext import SingletonCandidate, SingletonFactory
+
+
+class TestSingleton(ChrysalideTestCase):
+ """Test cases for pychrysalide.glibext.SingletonFactory."""
+
+
+ def testSingletonCreation(self):
+ """Create singleton objects."""
+
+ with self.assertRaisesRegex(NotImplementedError, 'SingletonCandidate can not be constructed'):
+
+ sc = SingletonCandidate()
+
+ class NewSingletonImplem(GObject.Object, SingletonCandidate):
+ pass
+
+ nsi = NewSingletonImplem()
+
+ self.assertIsNotNone(nsi)
+
+
+ def testFactoryCreation(self):
+ """Create singleton factories."""
+
+ sf = SingletonFactory()
+
+ self.assertIsNotNone(sf)
+
+ class MyFactory(SingletonFactory):
+ pass
+
+ msf = MyFactory()
+
+ self.assertIsNotNone(msf)
+
+
+ def testSingletonMethods(self):
+ """Test the singleton methods."""
+
+ class IntegerCacheImplem(GObject.Object, SingletonCandidate):
+
+ def __init__(self, val):
+ super().__init__()
+ self._val = val
+
+ def __eq__(self, other):
+ return self._val == other._val
+
+ def __hash__(self):
+ return hash('common-key')
+
+ val_0 = IntegerCacheImplem(0)
+ val_0_bis = IntegerCacheImplem(0)
+ val_1 = IntegerCacheImplem(1)
+
+ self.assertEqual(hash(val_0), hash(val_0_bis))
+ self.assertEqual(hash(val_0), hash(val_1))
+
+ self.assertEqual(val_0.hash(), val_0_bis.hash())
+ self.assertEqual(val_0.hash(), val_1.hash())
+
+ self.assertTrue(val_0 == val_0_bis)
+ self.assertFalse(val_0 == val_1)
+
+
+ def testSingletonFootprint(self):
+ """Check for singleton memory footprint."""
+
+ class IntegerCacheImplem(GObject.Object, SingletonCandidate):
+
+ def __init__(self, val):
+ super().__init__()
+ self._val = val
+
+ def __eq__(self, other):
+ return self._val == other._val
+
+ def __hash__(self):
+ return hash('common-key')
+
+ val_0 = IntegerCacheImplem(0)
+ val_0_bis = IntegerCacheImplem(0)
+ val_1 = IntegerCacheImplem(1)
+
+ sf = SingletonFactory()
+
+ obj = sf.get_instance(val_0)
+
+ self.assertTrue(obj is val_0)
+
+ obj = sf.get_instance(val_0_bis)
+
+ self.assertTrue(obj is val_0)
+
+ obj = sf.get_instance(val_1)
+
+ self.assertTrue(obj is val_1)