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from __future__ import unicode_literals
import unittest
from textwrap import dedent
import os
import tempfile
import shutil
from psutil import Process
from yaksh.grader import Grader
from yaksh.settings import SERVER_TIMEOUT
from yaksh.evaluator_tests.test_python_evaluation import EvaluatorBaseTest
class RAssertionEvaluationTestCase(EvaluatorBaseTest):
def setUp(self):
self.tmp_file = os.path.join(tempfile.gettempdir(), 'test.txt')
with open(self.tmp_file, 'wb') as f:
f.write('2'.encode('ascii'))
tmp_in_dir_path = tempfile.mkdtemp()
self.in_dir = tmp_in_dir_path
self.test_case = dedent(
'''
source("function.r")
check_empty = function(obj){
stopifnot(is.null(obj) == FALSE)
}
check = function(input, output){
stopifnot(input == output)
}
is_correct = function(){
if (count == 3){
quit("no", 31)
}
}
check_empty(odd_or_even(3))
check(odd_or_even(6), "EVEN")
check(odd_or_even(1), "ODD")
check(odd_or_even(10), "EVEN")
check(odd_or_even(777), "ODD")
check(odd_or_even(778), "EVEN")
count = 3
is_correct()
'''
)
self.test_case_data = [{"test_case": self.test_case,
"test_case_type": "standardtestcase",
"weight": 0.0
}]
self.timeout_msg = ("Code took more than {0} seconds to run. "
"You probably have an infinite loop in"
" your code.").format(SERVER_TIMEOUT)
self.file_paths = None
def tearDown(self):
os.remove(self.tmp_file)
shutil.rmtree(self.in_dir)
def test_correct_answer(self):
# Given
user_answer = dedent(
'''
odd_or_even <- function(n){
if(n %% 2 == 0){
return("EVEN")
}
return("ODD")
}
'''
)
kwargs = {'metadata': {
'user_answer': user_answer,
'file_paths': self.file_paths,
'partial_grading': False,
'language': 'r'},
'test_case_data': self.test_case_data,
}
# When
grader = Grader(self.in_dir)
result = grader.evaluate(kwargs)
# Then
self.assertTrue(result.get('success'))
def test_incorrect_answer(self):
# Given
user_answer = dedent(
'''
odd_or_even <- function(n){
if(n %% 2 == 0){
return("ODD")
}
return("EVEN")
}
'''
)
err = ['Error: input == output is not TRUE\nExecution halted\n']
kwargs = {'metadata': {
'user_answer': user_answer,
'file_paths': self.file_paths,
'partial_grading': False,
'language': 'r'},
'test_case_data': self.test_case_data,
}
# When
grader = Grader(self.in_dir)
result = grader.evaluate(kwargs)
errors = result.get('error')
# Then
self.assertFalse(result.get('success'))
self.assertEqual(errors, err)
def test_error_code(self):
# Given
user_answer = dedent(
'''
odd_or_even <- function(n){
a
}
'''
)
kwargs = {'metadata': {
'user_answer': user_answer,
'file_paths': self.file_paths,
'partial_grading': False,
'language': 'r'},
'test_case_data': self.test_case_data,
}
# When
grader = Grader(self.in_dir)
result = grader.evaluate(kwargs)
errors = result.get('error')
# Then
self.assertFalse(result.get("success"))
self.assertIn("object 'a' not found", errors[0])
def test_empty_function(self):
# Given
user_answer = dedent(
'''
odd_or_even <- function(n){
}
'''
)
kwargs = {'metadata': {
'user_answer': user_answer,
'file_paths': self.file_paths,
'partial_grading': False,
'language': 'r'},
'test_case_data': self.test_case_data,
}
# When
grader = Grader(self.in_dir)
result = grader.evaluate(kwargs)
errors = result.get('error')
# Then
self.assertFalse(result.get("success"))
self.assertIn("Error: is.null(obj) == FALSE is not TRUE", errors[0])
def test_infinite_loop(self):
# Given
user_answer = dedent(
'''
odd_or_even <- function(n){
while(0 == 0){
a <- 1
}
}
'''
)
kwargs = {'metadata': {
'user_answer': user_answer,
'file_paths': self.file_paths,
'partial_grading': False,
'language': 'r'},
'test_case_data': self.test_case_data,
}
# When
grader = Grader(self.in_dir)
result = grader.evaluate(kwargs)
# Then
self.assertFalse(result.get("success"))
self.assert_correct_output(self.timeout_msg,
result.get("error")[0]["message"]
)
parent_proc = Process(os.getpid()).children()
if parent_proc:
children_procs = Process(parent_proc[0].pid)
self.assertFalse(any(children_procs.children(recursive=True)))
|
