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# -*- coding: utf-8 -*-
import ast
import sys
import six
from django.core.management import call_command
from django.test import TestCase
from .testapp.models import Name, Note, Person
class DumpScriptTests(TestCase):
def setUp(self):
sys.stdout = six.StringIO()
sys.stderr = six.StringIO()
def test_runs(self):
# lame test...does it run?
n = Name(name='Gabriel')
n.save()
call_command('dumpscript', 'django_extensions')
self.assertTrue('Gabriel' in sys.stdout.getvalue())
def test_replaced_stdout(self):
# check if stdout can be replaced
sys.stdout = six.StringIO()
n = Name(name='Mike')
n.save()
tmp_out = six.StringIO()
call_command('dumpscript', 'django_extensions', stdout=tmp_out)
self.assertTrue('Mike' in tmp_out.getvalue()) # script should go to tmp_out
self.assertEqual(0, len(sys.stdout.getvalue())) # there should not be any output to sys.stdout
tmp_out.close()
def test_replaced_stderr(self):
# check if stderr can be replaced, without changing stdout
n = Name(name='Fred')
n.save()
tmp_err = six.StringIO()
sys.stderr = six.StringIO()
call_command('dumpscript', 'django_extensions', stderr=tmp_err)
self.assertTrue('Fred' in sys.stdout.getvalue()) # script should still go to stdout
self.assertTrue('Name' in tmp_err.getvalue()) # error output should go to tmp_err
self.assertEqual(0, len(sys.stderr.getvalue())) # there should not be any output to sys.stderr
tmp_err.close()
def test_valid_syntax(self):
n1 = Name(name='John')
n1.save()
p1 = Person(name=n1, age=40)
p1.save()
n2 = Name(name='Jane')
n2.save()
p2 = Person(name=n2, age=18)
p2.save()
p2.children.add(p1)
note1 = Note(note="This is the first note.")
note1.save()
note2 = Note(note="This is the second note.")
note2.save()
p2.notes.add(note1, note2)
tmp_out = six.StringIO()
call_command('dumpscript', 'django_extensions', stdout=tmp_out)
ast_syntax_tree = ast.parse(tmp_out.getvalue())
if hasattr(ast_syntax_tree, 'body'):
self.assertTrue(len(ast_syntax_tree.body) > 1)
else:
self.assertTrue(len(ast_syntax_tree.asList()) > 1)
tmp_out.close()
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