Add tests

jsignature/tests/mixins.py

@@ -0,0 +1,50 @@
+import json
+import django
+from datetime import datetime, date
+from django.conf import settings
+from django.db.models import loading
+from django.test import SimpleTestCase
+from django.core.management import call_command
+from django.core.exceptions import ValidationError
+
+from .models import JSignatureTestModel
+
+
+class JSignatureFieldsMixinTest(SimpleTestCase):
+
+    def setUp(self):
+        self.old_installed_apps = settings.INSTALLED_APPS
+        settings.INSTALLED_APPS = list(settings.INSTALLED_APPS)
+        settings.INSTALLED_APPS.append('jsignature.tests')
+        loading.cache.loaded = False
+        call_command('syncdb', verbosity=0)
+
+    def tearDown(self):
+        settings.INSTALLED_APPS = self.old_installed_apps
+
+    def test_save(self):
+        # If an object is created signed, signature date must be set
+        signature_value = [{"x":[1,2], "y":[3,4]}]
+        i = JSignatureTestModel(signature=signature_value)
+        i.save()
+        i = JSignatureTestModel.objects.get(pk=i.pk)
+        self.assertEqual(date.today(), i.signature_date.date())
+
+        # If signature doesn't change, signature date must not be updated
+        i = JSignatureTestModel(signature=signature_value)
+        i.save()
+        i.signature_date = date(2013, 1, 1)
+        i.signature = signature_value
+        i.save()
+        i = JSignatureTestModel.objects.get(pk=i.pk)
+        self.assertEqual(date(2013, 1, 1), i.signature_date.date())
+
+        # If signature changes, signature date must be updated too
+        new_signature_value = [{"x":[5,6], "y":[7,8]}]
+        i = JSignatureTestModel(signature=signature_value, signature_date=date(2013, 1, 1))
+        i.save()
+        i.signature_date = date(2013, 1, 1)
+        i.signature = new_signature_value
+        i.save()
+        i = JSignatureTestModel.objects.get(pk=i.pk)
+        self.assertEqual(date.today(), i.signature_date.date())