77 lines
2.7 KiB
Python
77 lines
2.7 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# django-pyvows extensions
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# https://github.com/rafaelcaricio/django-pyvows
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# Licensed under the MIT license:
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# http://www.opensource.org/licenses/mit-license
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# Copyright (c) 2011 Rafael Caricio rafael@caricio.com
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from pyvows import Vows, expect
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class Model(object):
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def __init__(self, context, model):
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self.context = context
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self.model = model
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@Vows.assertion
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def to_be_cruddable(topic, defaults={}):
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import django.db.models.fields as fields
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instance = __create_or_update_instance(topic, None, defaults)
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assert instance, "An instance could not be created for model %s" % topic.model.__name__
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retrieved = topic.model.objects.get(id=instance.id)
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assert retrieved.id == instance.id, "An instance could not be retrieved for model %s with id %d" % (topic.model.__name__, instance.id)
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for key, value in defaults.iteritems():
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assert value == getattr(retrieved, key), "The default specified value of '%s' should have been set in the '%s' property of the instance but it was not" % (value, key)
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updated = __create_or_update_instance(topic, retrieved, defaults)
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for field, value in topic.model._meta._field_cache:
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if field.__class__ == fields.AutoField:
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continue
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if field.name in defaults:
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continue
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assert getattr(updated, field.name) != getattr(instance, field.name), "The instance should have been updated but the field %s is the same in both the original instance and the updated one (%s)." % (field.name, getattr(updated, field.name))
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instance.delete()
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object_count = topic.model.objects.count()
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assert object_count == 0, "Object should have been deleted, but it wasn't (count: %d)" % object_count
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def __create_or_update_instance(topic, instance, defaults):
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import django.db.models.fields as fields
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arguments = {}
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for field, value in topic.model._meta._field_cache:
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if field.__class__ == fields.AutoField:
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continue
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if field.name in defaults:
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arguments[field.name] = defaults[field.name]
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continue
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if field.__class__ == fields.CharField:
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__add_char_value_for(field, instance, arguments)
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if instance:
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for key, value in arguments.iteritems():
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setattr(instance, key, value)
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instance.save()
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return instance
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return topic.model.objects.create(**arguments)
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def __add_char_value_for(field, instance, arguments):
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value = "monty python"
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if instance:
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value = getattr(instance, field.name) + '2'
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if field.max_length:
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if instance:
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value = value[:len(value) - 2] + '2'
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value = (value * field.max_length)[:field.max_length]
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arguments[field.name] = value
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