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# -*- coding: utf-8 -*-
from unittest import mock
import pytest
from io import StringIO
from django.conf import settings
from django.apps import apps
from django.test import TestCase
# from django.core.management import call_command
from django_extensions.management.commands.sqldiff import (
SqliteSQLDiff,
Command,
MySQLDiff,
PostgresqlSQLDiff,
)
from tests.testapp.models import (
PostWithUniqField,
SluggedWithUniqueTogetherTestModel,
RandomCharTestModelUniqueTogether,
SqlDiffUniqueTogether,
SqlDiff,
SqlDiffIndexes,
)
class SqlDiffTests(TestCase):
def setUp(self):
self.parser = Command().create_parser("test", "sqldiff")
self.args = ["-a"]
self.options = self.parser.parse_args(args=self.args)
self.tmp_out = StringIO()
self.tmp_err = StringIO()
def _include_proxy_models_testing(self, should_include_proxy_models): # type: (bool) -> ()
if should_include_proxy_models:
self.args.append("--include-proxy-models")
self.options = self.parser.parse_args(args=self.args)
instance = SqliteSQLDiff(
apps.get_models(include_auto_created=True),
vars(self.options),
stdout=self.tmp_out,
stderr=self.tmp_err,
)
instance.load()
instance.find_differences()
checked_models = {
"%s.%s" % (app_label, model_name)
for app_label, model_name, _ in instance.differences
}
self.assertEqual(
should_include_proxy_models,
"testapp.PostWithTitleOrdering" in checked_models,
)
@pytest.mark.skipif(
settings.DATABASES["default"]["ENGINE"] != "django.db.backends.sqlite3",
reason="Test can only run on sqlite3",
)
def test_sql_diff_without_proxy_models(self):
self._include_proxy_models_testing(False)
@pytest.mark.skipif(
settings.DATABASES["default"]["ENGINE"] != "django.db.backends.sqlite3",
reason="Test can only run on sqlite3",
)
def test_sql_diff_with_proxy_models(self):
self._include_proxy_models_testing(True)
def test_format_field_names(self):
instance = MySQLDiff(
apps.get_models(include_auto_created=True),
vars(self.options),
stdout=self.tmp_out,
stderr=self.tmp_err,
)
expected_field_name = ["name", "email", "address"]
self.assertEqual(
instance.format_field_names(["Name", "EMAIL", "aDDress"]),
expected_field_name,
)
def test_get_index_together(self):
instance = MySQLDiff(
apps.get_models(include_auto_created=True),
vars(self.options),
stdout=self.tmp_out,
stderr=self.tmp_err,
)
self.assertEqual(
instance.get_index_together(SqlDiff._meta), [("number", "creator")]
)
self.assertEqual(
instance.get_index_together(SqlDiffIndexes._meta), [("first", "second")]
)
def test_get_unique_together(self):
instance = MySQLDiff(
apps.get_models(include_auto_created=True),
vars(self.options),
stdout=self.tmp_out,
stderr=self.tmp_err,
)
self.assertEqual(
instance.get_unique_together(SluggedWithUniqueTogetherTestModel._meta),
[("slug", "category")],
)
self.assertEqual(
instance.get_unique_together(RandomCharTestModelUniqueTogether._meta),
[("random_char_field", "common_field")],
)
self.assertEqual(
instance.get_unique_together(SqlDiffUniqueTogether._meta), [("aaa", "bbb")]
)
self.assertEqual(
instance.get_unique_together(PostWithUniqField._meta),
[("common_field", "uniq_field")],
)
@pytest.mark.skipif(
settings.DATABASES["default"]["ENGINE"] != "django.db.backends.mysql",
reason="Test can only run on mysql",
)
def test_mysql_to_dict(self):
mysql_instance = MySQLDiff(
apps.get_models(include_auto_created=True),
vars(self.options),
stdout=self.tmp_out,
stderr=self.tmp_err,
)
mysql_dict = mysql_instance.sql_to_dict(
"""select 1 as "foo", 1 + 1 as "BAR";""", []
)
self.assertEqual(mysql_dict, [{"bar": 2, "foo": 1}])
@pytest.mark.skipif(
settings.DATABASES["default"]["ENGINE"] != "django.db.backends.mysql",
reason="Test can only run on mysql",
)
@mock.patch(
"django_extensions.management.commands.sqldiff.MySQLDiff.format_field_names"
)
def test_invalid_mysql_to_dict(self, format_field_names):
format_field_names.side_effect = lambda x: x
mysql_instance = MySQLDiff(
apps.get_models(include_auto_created=True),
vars(self.options),
stdout=self.tmp_out,
stderr=self.tmp_err,
)
mysql_dict = mysql_instance.sql_to_dict(
"""select 1 as "foo", 1 + 1 as "BAR";""", []
)
self.assertNotEquals(mysql_dict, [{"bar": 2, "foo": 1}])
@pytest.mark.skipif(
settings.DATABASES["default"]["ENGINE"] != "django.db.backends.sqlite3",
reason="Test can only run on sqlite3",
)
def test_sqlite_to_dict(self):
sqlite_instance = SqliteSQLDiff(
apps.get_models(include_auto_created=True),
vars(self.options),
stdout=self.tmp_out,
stderr=self.tmp_err,
)
sqlite_dict = sqlite_instance.sql_to_dict(
"""select 1 as "foo", 1 + 1 as "BAR";""", []
)
self.assertEqual(sqlite_dict, [{"BAR": 2, "foo": 1}])
@pytest.mark.skipif(
settings.DATABASES["default"]["ENGINE"] != "django.db.backends.postgresql",
reason="Test can only run on postgresql",
)
def test_postgresql_to_dict(self):
postgresql_instance = PostgresqlSQLDiff(
apps.get_models(include_auto_created=True),
vars(self.options),
stdout=self.tmp_out,
stderr=self.tmp_err,
)
postgresql_dict = postgresql_instance.sql_to_dict(
"""select 1 as "foo", 1 + 1 as "BAR";""", []
)
self.assertEqual(postgresql_dict, [{"BAR": 2, "foo": 1}])
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