Converted signals tests from doctests to unittests. We have always be…

…en at war with doctests.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@14131 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/modeltests/signals/models.py

@@ -3,7 +3,7 @@
 """
 
 from django.db import models
-from django.dispatch import receiver
+
 
 class Person(models.Model):
     first_name = models.CharField(max_length=20)
@@ -18,134 +18,3 @@ class Car(models.Model):
 
     def __unicode__(self):
         return u"%s %s" % (self.make, self.model)
-
-def pre_save_test(signal, sender, instance, **kwargs):
-    print 'pre_save signal,', instance
-    if kwargs.get('raw'):
-        print 'Is raw'
-
-def post_save_test(signal, sender, instance, **kwargs):
-    print 'post_save signal,', instance
-    if 'created' in kwargs:
-        if kwargs['created']:
-            print 'Is created'
-        else:
-            print 'Is updated'
-    if kwargs.get('raw'):
-        print 'Is raw'
-
-def pre_delete_test(signal, sender, instance, **kwargs):
-    print 'pre_delete signal,', instance
-    print 'instance.id is not None: %s' % (instance.id != None)
-
-# #8285: signals can be any callable
-class PostDeleteHandler(object):
-    def __call__(self, signal, sender, instance, **kwargs):
-        print 'post_delete signal,', instance
-        print 'instance.id is None: %s' % (instance.id == None)
-
-post_delete_test = PostDeleteHandler()
-
-__test__ = {'API_TESTS':"""
-
-# Save up the number of connected signals so that we can check at the end
-# that all the signals we register get properly unregistered (#9989)
->>> pre_signals = (len(models.signals.pre_save.receivers),
-...                len(models.signals.post_save.receivers),
-...                len(models.signals.pre_delete.receivers),
-...                len(models.signals.post_delete.receivers))
-
->>> models.signals.pre_save.connect(pre_save_test)
->>> models.signals.post_save.connect(post_save_test)
->>> models.signals.pre_delete.connect(pre_delete_test)
->>> models.signals.post_delete.connect(post_delete_test)
-
-# throw a decorator syntax receiver into the mix
->>> @receiver(models.signals.pre_save)
-... def pre_save_decorator_test(signal, sender, instance, **kwargs):
-...     print "pre_save signal decorator,", instance
-
-# throw a decorator syntax receiver into the mix
->>> @receiver(models.signals.pre_save, sender=Car)
-... def pre_save_decorator_sender_test(signal, sender, instance, **kwargs):
-...     print "pre_save signal decorator sender,", instance
-
->>> p1 = Person(first_name='John', last_name='Smith')
->>> p1.save()
-pre_save signal, John Smith
-pre_save signal decorator, John Smith
-post_save signal, John Smith
-Is created
-
->>> p1.first_name = 'Tom'
->>> p1.save()
-pre_save signal, Tom Smith
-pre_save signal decorator, Tom Smith
-post_save signal, Tom Smith
-Is updated
-
-# Car signal (sender defined)
->>> c1 = Car(make="Volkswagon", model="Passat")
->>> c1.save()
-pre_save signal, Volkswagon Passat
-pre_save signal decorator, Volkswagon Passat
-pre_save signal decorator sender, Volkswagon Passat
-post_save signal, Volkswagon Passat
-Is created
-
-# Calling an internal method purely so that we can trigger a "raw" save.
->>> p1.save_base(raw=True)
-pre_save signal, Tom Smith
-Is raw
-pre_save signal decorator, Tom Smith
-post_save signal, Tom Smith
-Is updated
-Is raw
-
->>> p1.delete()
-pre_delete signal, Tom Smith
-instance.id is not None: True
-post_delete signal, Tom Smith
-instance.id is None: False
-
->>> p2 = Person(first_name='James', last_name='Jones')
->>> p2.id = 99999
->>> p2.save()
-pre_save signal, James Jones
-pre_save signal decorator, James Jones
-post_save signal, James Jones
-Is created
-
->>> p2.id = 99998
->>> p2.save()
-pre_save signal, James Jones
-pre_save signal decorator, James Jones
-post_save signal, James Jones
-Is created
-
->>> p2.delete()
-pre_delete signal, James Jones
-instance.id is not None: True
-post_delete signal, James Jones
-instance.id is None: False
-
->>> Person.objects.all()
-[<Person: James Jones>]
-
->>> models.signals.post_delete.disconnect(post_delete_test)
->>> models.signals.pre_delete.disconnect(pre_delete_test)
->>> models.signals.post_save.disconnect(post_save_test)
->>> models.signals.pre_save.disconnect(pre_save_test)
->>> models.signals.pre_save.disconnect(pre_save_decorator_test)
->>> models.signals.pre_save.disconnect(pre_save_decorator_sender_test, sender=Car)
-
-# Check that all our signals got disconnected properly.
->>> post_signals = (len(models.signals.pre_save.receivers),
-...                 len(models.signals.post_save.receivers),
-...                 len(models.signals.pre_delete.receivers),
-...                 len(models.signals.post_delete.receivers))
-
->>> pre_signals == post_signals
-True
-
-"""}

tests/modeltests/signals/tests.py

@@ -1,6 +1,19 @@
 from django.db.models import signals
+from django.dispatch import receiver
 from django.test import TestCase
-from modeltests.signals.models import Person
+
+from models import Person, Car
+
+
+# #8285: signals can be any callable
+class PostDeleteHandler(object):
+    def __init__(self, data):
+        self.data = data
+
+    def __call__(self, signal, sender, instance, **kwargs):
+        self.data.append(
+            (instance, instance.id is None)
+        )
 
 class MyReceiver(object):
     def __init__(self, param):
@@ -12,6 +25,142 @@ def __call__(self, signal, sender, **kwargs):
         signal.disconnect(receiver=self, sender=sender)
 
 class SignalTests(TestCase):
+    def test_basic(self):
+        # Save up the number of connected signals so that we can check at the
+        # end that all the signals we register get properly unregistered (#9989)
+        pre_signals = (
+            len(signals.pre_save.receivers),
+            len(signals.post_save.receivers),
+            len(signals.pre_delete.receivers),
+            len(signals.post_delete.receivers),
+        )
+
+        data = []
+
+        def pre_save_test(signal, sender, instance, **kwargs):
+            data.append(
+                (instance, kwargs.get("raw", False))
+            )
+        signals.pre_save.connect(pre_save_test)
+
+        def post_save_test(signal, sender, instance, **kwargs):
+            data.append(
+                (instance, kwargs.get("created"), kwargs.get("raw", False))
+            )
+        signals.post_save.connect(post_save_test)
+
+        def pre_delete_test(signal, sender, instance, **kwargs):
+            data.append(
+                (instance, instance.id is None)
+            )
+        signals.pre_delete.connect(pre_delete_test)
+
+        post_delete_test = PostDeleteHandler(data)
+        signals.post_delete.connect(post_delete_test)
+
+        # throw a decorator syntax receiver into the mix
+        @receiver(signals.pre_save)
+        def pre_save_decorator_test(signal, sender, instance, **kwargs):
+            data.append(instance)
+
+        @receiver(signals.pre_save, sender=Car)
+        def pre_save_decorator_sender_test(signal, sender, instance, **kwargs):
+            data.append(instance)
+
+        p1 = Person(first_name="John", last_name="Smith")
+        self.assertEqual(data, [])
+        p1.save()
+        self.assertEqual(data, [
+            (p1, False),
+            p1,
+            (p1, True, False),
+        ])
+        data[:] = []
+
+        p1.first_name = "Tom"
+        p1.save()
+        self.assertEqual(data, [
+            (p1, False),
+            p1,
+            (p1, False, False),
+        ])
+        data[:] = []
+
+        # Car signal (sender defined)
+        c1 = Car(make="Volkswagon", model="Passat")
+        c1.save()
+        self.assertEqual(data, [
+            (c1, False),
+            c1,
+            c1,
+            (c1, True, False),
+        ])
+        data[:] = []
+
+        # Calling an internal method purely so that we can trigger a "raw" save.
+        p1.save_base(raw=True)
+        self.assertEqual(data, [
+            (p1, True),
+            p1,
+            (p1, False, True),
+        ])
+        data[:] = []
+
+        p1.delete()
+        self.assertEqual(data, [
+            (p1, False),
+            (p1, False),
+        ])
+        data[:] = []
+
+        p2 = Person(first_name="James", last_name="Jones")
+        p2.id = 99999
+        p2.save()
+        self.assertEqual(data, [
+            (p2, False),
+            p2,
+            (p2, True, False),
+        ])
+        data[:] = []
+
+        p2.id = 99998
+        p2.save()
+        self.assertEqual(data, [
+            (p2, False),
+            p2,
+            (p2, True, False),
+        ])
+        data[:] = []
+
+        p2.delete()
+        self.assertEqual(data, [
+            (p2, False),
+            (p2, False)
+        ])
+
+        self.assertQuerysetEqual(
+            Person.objects.all(), [
+                "James Jones",
+            ],
+            unicode
+        )
+
+        signals.post_delete.disconnect(post_delete_test)
+        signals.pre_delete.disconnect(pre_delete_test)
+        signals.post_save.disconnect(post_save_test)
+        signals.pre_save.disconnect(pre_save_test)
+        signals.pre_save.disconnect(pre_save_decorator_test)
+        signals.pre_save.disconnect(pre_save_decorator_sender_test, sender=Car)
+
+        # Check that all our signals got disconnected properly.
+        post_signals = (
+            len(signals.pre_save.receivers),
+            len(signals.post_save.receivers),
+            len(signals.pre_delete.receivers),
+            len(signals.post_delete.receivers),
+        )
+        self.assertEqual(pre_signals, post_signals)
+
     def test_disconnect_in_dispatch(self):
         """
         Test that signals that disconnect when being called don't mess future
@@ -21,8 +170,7 @@ def test_disconnect_in_dispatch(self):
         signals.post_save.connect(sender=Person, receiver=a)
         signals.post_save.connect(sender=Person, receiver=b)
         p = Person.objects.create(first_name='John', last_name='Smith')
-        
+
         self.failUnless(a._run)
         self.failUnless(b._run)
         self.assertEqual(signals.post_save.receivers, [])
-