def test_general_exception_with_mixed_errors(self):
# get should raise a NotFoundError if no server returns the block,
# and a high threshold of servers report that it's not found.
# This test rigs up 50/50 disagreement between two servers, and
# checks that it does not become a NotFoundError.
client = self.new_client()
with tutil.mock_get_responses(self.DEFAULT_EXPECT, 404, 500):
with self.assertRaises(arvados.errors.KeepReadError) as exc_check:
client.get(self.HINTED_LOCATOR)
self.assertNotIsInstance(exc_check.exception,
arvados.errors.NotFoundError,
"mixed errors raised NotFoundError")
def test_hint_server_can_succeed_without_retries(self):
with tutil.mock_get_responses(self.DEFAULT_EXPECT, 404, 200, 500):
self.check_success(locator=self.HINTED_LOCATOR)
def test_specific_exception_when_not_found(self):
with tutil.mock_get_responses(self.DEFAULT_EXPECT, 404, 200):
self.check_exception(arvados.errors.NotFoundError, num_retries=3)
def test_method_retries_take_precedence(self):
with tutil.mock_get_responses('', 500, 500, 500, 200):
reader = self.reader_for('user_agreement', num_retries=10)
with self.assertRaises(arvados.errors.KeepReadError):
self.read_for_test(reader, 10, num_retries=1)
def test_read_method_retries_exhausted(self):
with tutil.mock_get_responses('bar', 500, 500, 500, 500, 200):
reader = self.reader_for('bar_file')
with self.assertRaises(arvados.errors.KeepReadError):
self.read_for_test(reader, 3, num_retries=3)
def test_read_with_method_retries(self):
with tutil.mock_get_responses('foo', 500, 200):
reader = self.reader_for('foo_file')
self.assertEqual('foo', self.read_for_test(reader,
3,
num_retries=3))
def test_read_no_default_retry(self):
with tutil.mock_get_responses('', 500):
reader = self.reader_for('user_agreement')
with self.assertRaises(arvados.errors.KeepReadError):
self.read_for_test(reader, 10)
def test_success_without_retries(self):
with tutil.mock_get_responses('bar', 200):
reader = self.reader_for('bar_file')
self.assertEqual('bar', self.read_for_test(reader, 3))
