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from __future__ import unicode_literals
import json
try:
from Queue import Queue
except ImportError:
from queue import Queue
from threading import Thread
import unittest
from six.moves import urllib
from yaksh.code_server import ServerPool, SERVER_POOL_PORT, submit, get_result
from yaksh import settings
class TestCodeServer(unittest.TestCase):
@classmethod
def setUpClass(cls):
settings.code_evaluators['python']['standardtestcase'] = \
"yaksh.python_assertion_evaluator.PythonAssertionEvaluator"
server_pool = ServerPool(n=5, pool_port=SERVER_POOL_PORT)
cls.server_pool = server_pool
cls.server_thread = t = Thread(target=server_pool.run)
t.start()
@classmethod
def tearDownClass(cls):
cls.server_pool.stop()
cls.server_thread.join()
settings.code_evaluators['python']['standardtestcase'] = \
"python_assertion_evaluator.PythonAssertionEvaluator"
def setUp(self):
self.url = 'http://localhost:%s' % SERVER_POOL_PORT
def test_infinite_loop(self):
# Given
testdata = {
'metadata': {
'user_answer': 'while True: pass',
'language': 'python',
'partial_grading': False
},
'test_case_data': [
{'test_case': 'assert 1==2',
'test_case_type': 'standardtestcase',
'weight': 0.0}
]
}
# When
submit(self.url, '0', json.dumps(testdata), '')
result = get_result(self.url, '0')
# Then
self.assertTrue(result.get('status') in ['running', 'not started'])
# When
result = get_result(self.url, '0', block=True)
# Then
data = json.loads(result.get('result'))
self.assertFalse(data['success'])
self.assertTrue('infinite loop' in data['error'][0]['message'])
def test_correct_answer(self):
# Given
testdata = {
'metadata': {
'user_answer': 'def f(): return 1',
'language': 'python',
'partial_grading': False
},
'test_case_data': [{'test_case': 'assert f() == 1',
'test_case_type': 'standardtestcase',
'weight': 0.0}]
}
# When
submit(self.url, '0', json.dumps(testdata), '')
result = get_result(self.url, '0', block=True)
# Then
data = json.loads(result.get('result'))
self.assertTrue(data['success'])
def test_wrong_answer(self):
# Given
testdata = {
'metadata': {
'user_answer': 'def f(): return 1',
'language': 'python',
'partial_grading': False
},
'test_case_data': [{'test_case': 'assert f() == 2',
'test_case_type': 'standardtestcase',
'weight': 0.0}]
}
# When
submit(self.url, '0', json.dumps(testdata), '')
result = get_result(self.url, '0', block=True)
# Then
data = json.loads(result.get('result'))
self.assertFalse(data['success'])
self.assertTrue('AssertionError' in data['error'][0]['exception'])
def test_question_with_no_testcases(self):
# Given
testdata = {
'metadata': {
'user_answer': 'def f(): return 1',
'language': 'python',
'partial_grading': False
},
'test_case_data': []
}
# When
submit(self.url, '0', json.dumps(testdata), '')
result = get_result(self.url, '0', block=True)
# Then
data = json.loads(result.get('result'))
self.assertFalse(data['success'])
# With correct answer and test case
testdata["metadata"]["user_answer"] = 'def f(): return 2'
testdata["test_case_data"] = [{'test_case': 'assert f() == 2',
'test_case_type': 'standardtestcase',
'weight': 0.0
}]
# When
submit(self.url, '0', json.dumps(testdata), '')
result = get_result(self.url, '0', block=True)
# Then
data = json.loads(result.get('result'))
self.assertTrue(data['success'])
def test_multiple_simultaneous_hits(self):
# Given
results = Queue()
def run_code(uid):
"""Run an infinite loop."""
testdata = {
'metadata': {
'user_answer': 'while True: pass',
'language': 'python',
'partial_grading': False
},
'test_case_data': [{'test_case': 'assert 1==2',
'test_case_type': 'standardtestcase',
'weight': 0.0}]
}
submit(self.url, uid, json.dumps(testdata), '')
result = get_result(self.url, uid, block=True)
results.put(json.loads(result.get('result')))
N = 10
# When
threads = []
for i in range(N):
t = Thread(target=run_code, args=(str(i),))
threads.append(t)
t.start()
for t in threads:
if t.isAlive():
t.join()
# Then
self.assertEqual(results.qsize(), N)
for i in range(N):
data = results.get()
self.assertFalse(data['success'])
self.assertTrue('infinite loop' in data['error'][0]['message'])
def test_server_pool_status(self):
# Given
url = "http://localhost:%s/" % SERVER_POOL_PORT
# When
response = urllib.request.urlopen(url)
data = response.read().decode('utf-8')
# Then
expect = '5 processes, 0 running, 0 queued'
self.assertTrue(expect in data)
def test_killing_process_revives_it(self):
# Given
testdata = {
'metadata': {
'user_answer': 'import sys; sys.exit()',
'language': 'python',
'partial_grading': False
},
'test_case_data': [{'test_case': '',
'test_case_type': 'standardtestcase',
'weight': 0.0}]
}
# When
submit(self.url, '0', json.dumps(testdata), '')
result = get_result(self.url, '0', block=True)
# Then
data = json.loads(result.get('result'))
self.assertFalse(data['success'])
self.assertTrue('Process ended with exit code' in data['error'][0])
# Now check the server status to see if the right number
# processes are running.
url = "http://localhost:%s/" % SERVER_POOL_PORT
# When
response = urllib.request.urlopen(url)
data = response.read().decode('utf-8')
# Then
expect = '5 processes, 0 running, 0 queued'
self.assertTrue(expect in data)
if __name__ == '__main__':
unittest.main()
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