mirror of
https://github.com/django/django.git
synced 2024-12-01 15:42:04 +01:00
66 lines
2.5 KiB
Python
66 lines
2.5 KiB
Python
# encoding: utf8
|
|
import datetime
|
|
from django.test import TransactionTestCase
|
|
from django.db.migrations.writer import MigrationWriter
|
|
from django.db import models, migrations
|
|
|
|
|
|
class WriterTests(TransactionTestCase):
|
|
"""
|
|
Tests the migration writer (makes migration files from Migration instances)
|
|
"""
|
|
|
|
def safe_exec(self, value, string):
|
|
l = {}
|
|
try:
|
|
exec(string, {}, l)
|
|
except:
|
|
self.fail("Could not serialize %r: failed to exec %r" % (value, string.strip()))
|
|
return l
|
|
|
|
def assertSerializedEqual(self, value):
|
|
string, imports = MigrationWriter.serialize(value)
|
|
new_value = self.safe_exec(value, "%s\ntest_value_result = %s" % ("\n".join(imports), string))['test_value_result']
|
|
self.assertEqual(new_value, value)
|
|
|
|
def assertSerializedIs(self, value):
|
|
string, imports = MigrationWriter.serialize(value)
|
|
new_value = self.safe_exec(value, "%s\ntest_value_result = %s" % ("\n".join(imports), string))['test_value_result']
|
|
self.assertIs(new_value, value)
|
|
|
|
def test_serialize(self):
|
|
"""
|
|
Tests various different forms of the serializer.
|
|
This does not care about formatting, just that the parsed result is
|
|
correct, so we always exec() the result and check that.
|
|
"""
|
|
# Basic values
|
|
self.assertSerializedEqual(1)
|
|
self.assertSerializedEqual(None)
|
|
self.assertSerializedEqual("foobar")
|
|
self.assertSerializedEqual(u"föobár")
|
|
self.assertSerializedEqual({1: 2})
|
|
self.assertSerializedEqual(["a", 2, True, None])
|
|
self.assertSerializedEqual(set([2, 3, "eighty"]))
|
|
self.assertSerializedEqual({"lalalala": ["yeah", "no", "maybe"]})
|
|
# Datetime stuff
|
|
self.assertSerializedEqual(datetime.datetime.utcnow())
|
|
self.assertSerializedEqual(datetime.datetime.utcnow)
|
|
self.assertSerializedEqual(datetime.date.today())
|
|
self.assertSerializedEqual(datetime.date.today)
|
|
|
|
def test_simple_migration(self):
|
|
"""
|
|
Tests serializing a simple migration.
|
|
"""
|
|
migration = type("Migration", (migrations.Migration,), {
|
|
"operations": [
|
|
migrations.DeleteModel("MyModel"),
|
|
migrations.AddField("OtherModel", "field_name", models.DateTimeField(default=datetime.datetime.utcnow))
|
|
],
|
|
"dependencies": [("testapp", "some_other_one")],
|
|
})
|
|
writer = MigrationWriter(migration)
|
|
output = writer.as_string()
|
|
print output
|