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import mock
import os
import sys
from stetl.etl import ETL
from stetl.outputs.execoutput import CommandExecOutput
from tests.stetl_test_case import StetlTestCase
class CommandExecOutputTest(StetlTestCase):
"""Unit tests for CommandExecOutput"""
def setUp(self):
super(CommandExecOutputTest, self).setUp()
# Initialize Stetl
curr_dir = os.path.dirname(os.path.realpath(__file__))
cfg_dict = {'config_file': os.path.join(curr_dir, 'configs/commandexecoutput.cfg')}
self.etl = ETL(cfg_dict)
def test_class(self):
chain = StetlTestCase.get_chain(self.etl)
section = StetlTestCase.get_section(chain, -1)
class_name = self.etl.configdict.get(section, 'class')
self.assertEqual('outputs.execoutput.CommandExecOutput', class_name)
def test_instance(self):
chain = StetlTestCase.get_chain(self.etl)
self.assertTrue(isinstance(chain.cur_comp, CommandExecOutput))
@mock.patch('subprocess.call', autospec=True)
def test_execute(self, mock_call):
# Read content of input file
chain = StetlTestCase.get_chain(self.etl)
section = StetlTestCase.get_section(chain)
fn = self.etl.configdict.get(section, 'file_path')
with open(fn, 'r') as f:
contents = f.read()
self.etl.run()
self.assertTrue(mock_call.called)
self.assertEqual(1, mock_call.call_count)
args, kwargs = mock_call.call_args
self.assertEqual(contents, args[0])
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