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from decimal import Decimal
import pytest
from .models import (TestModel, TestModelWithForeignKey, TestModelWithOneToOneField,
SubclassModel, TestModelWithDecimalField)
@pytest.mark.django_db
def test_is_dirty_function():
tm = TestModel.objects.create()
# If the object has just been saved in the db, fields are not dirty
assert tm.get_dirty_fields() == {}
assert not tm.is_dirty()
# As soon as we change a field, it becomes dirty
tm.boolean = False
assert tm.get_dirty_fields() == {'boolean': True}
assert tm.is_dirty()
@pytest.mark.django_db
def test_dirty_fields():
tm = TestModel()
# Initial state is dirty, so should return all fields
assert tm.get_dirty_fields() == {'boolean': True, 'characters': ''}
tm.save()
# Saving them make them not dirty anymore
assert tm.get_dirty_fields() == {}
# Changing values should flag them as dirty again
tm.boolean = False
tm.characters = 'testing'
assert tm.get_dirty_fields() == {
'boolean': True,
'characters': ''
}
# Resetting them to original values should unflag
tm.boolean = True
assert tm.get_dirty_fields() == {
'characters': ''
}
@pytest.mark.django_db
def test_dirty_fields_for_notsaved_pk():
tm = TestModel(id=1)
# Initial state is dirty, so should return all fields
assert tm.get_dirty_fields() == {'id': 1, 'boolean': True, 'characters': ''}
tm.save()
# Saving them make them not dirty anymore
assert tm.get_dirty_fields() == {}
@pytest.mark.django_db
def test_relationship_option_for_foreign_key():
tm1 = TestModel.objects.create()
tm2 = TestModel.objects.create()
tm = TestModelWithForeignKey.objects.create(fkey=tm1)
# Let's change the foreign key value and see what happens
tm.fkey = tm2
# Default dirty check is not taking foreign keys into account
assert tm.get_dirty_fields() == {}
# But if we use 'check_relationships' param, then foreign keys are compared
assert tm.get_dirty_fields(check_relationship=True) == {
'fkey': tm1.pk
}
@pytest.mark.django_db
def test_relationship_option_for_one_to_one_field():
tm1 = TestModel.objects.create()
tm2 = TestModel.objects.create()
tm = TestModelWithOneToOneField.objects.create(o2o=tm1)
# Let's change the one to one field and see what happens
tm.o2o = tm2
# Default dirty check is not taking onetoone fields into account
assert tm.get_dirty_fields() == {}
# But if we use 'check_relationships' param, then one to one fields are compared
assert tm.get_dirty_fields(check_relationship=True) == {
'o2o': tm1.pk
}
@pytest.mark.django_db
def test_non_local_fields():
subclass = SubclassModel.objects.create(characters='foo')
subclass.characters = 'spam'
assert subclass.get_dirty_fields() == {'characters': 'foo'}
@pytest.mark.django_db
def test_decimal_field_correctly_managed():
# Non regression test case for bug:
# https://github.com/romgar/django-dirtyfields/issues/4
tm = TestModelWithDecimalField.objects.create(decimal_field=Decimal(2.00))
tm.decimal_field = 2.0
assert tm.get_dirty_fields() == {}
tm.decimal_field = u"2.00"
assert tm.get_dirty_fields() == {}
@pytest.mark.django_db
def test_deferred_fields():
TestModel.objects.create()
qs = TestModel.objects.only('boolean')
tm = qs[0]
tm.boolean = False
assert tm.get_dirty_fields() == {'boolean': True}
tm.characters = 'foo'
# 'characters' is not tracked as it is deferred
assert tm.get_dirty_fields() == {'boolean': True}
def test_validationerror():
# Initialize the model with an invalid value
tm = TestModel(boolean=None)
# Should not raise ValidationError
assert tm.get_dirty_fields() == {'boolean': None, 'characters': ''}
tm.boolean = False
assert tm.get_dirty_fields() == {'boolean': False, 'characters': ''}
@pytest.mark.django_db
def test_verbose_mode():
tm = TestModel.objects.create()
tm.boolean = False
assert tm.get_dirty_fields(verbose=True) == {
'boolean': {'saved': True, 'current': False}
}
@pytest.mark.django_db
def test_verbose_mode_on_adding():
tm = TestModel()
assert tm.get_dirty_fields(verbose=True) == {
'boolean': {'saved': None, 'current': True},
'characters': {'saved': None, 'current': u''}
}
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