#!/usr/bin/env python import traceback import pwd import os from os.path import join, isfile import subprocess import importlib # local imports from code_evaluator import CodeEvaluator class CppCodeEvaluator(CodeEvaluator): """Tests the C code obtained from Code Server""" def setup(self): super(CppCodeEvaluator, self).setup() self.submit_code_path = self.create_submit_code_file('submit.c') self.compiled_user_answer = None self.compiled_test_code = None def teardown(self): super(CppCodeEvaluator, self).teardown() # Delete the created file. os.remove(self.submit_code_path) def set_file_paths(self): user_output_path = os.getcwd() + '/output' ref_output_path = os.getcwd() + '/executable' return user_output_path, ref_output_path def get_commands(self, clean_ref_code_path, user_output_path, ref_output_path): compile_command = 'g++ {0} -c -o {1}'.format(self.submit_code_path, user_output_path) compile_main = 'g++ {0} {1} -o {2}'.format(clean_ref_code_path, user_output_path, ref_output_path) return compile_command, compile_main def compile_code(self, user_answer, test_case): if self.compiled_user_answer and self.compiled_test_code: return None else: ref_code_path = test_case clean_ref_code_path, clean_test_case_path = self._set_test_code_file_path(ref_code_path) if not isfile(clean_ref_code_path): return False, "No file at %s or Incorrect path" % clean_ref_code_path if not isfile(self.submit_code_path): return False, 'No file at %s or Incorrect path' % self.submit_code_path self.write_to_submit_code_file(self.submit_code_path, user_answer) self.user_output_path, self.ref_output_path = self.set_file_paths() self.compile_command, self.compile_main = self.get_commands(clean_ref_code_path, self.user_output_path, self.ref_output_path) # self.compiled_output = self._compile_command(self.compile_command) self.compiled_user_answer = self._run_command(self.compile_command, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE) self.compiled_test_code = self._run_command(self.compile_main, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE) return self.compiled_user_answer, self.compiled_test_code def check_code(self, user_answer, test_case): """ Function validates student code using instructor code as reference.The first argument ref_code_path, is the path to instructor code, it is assumed to have executable permission. The second argument submit_code_path, is the path to the student code, it is assumed to have executable permission. Returns -------- returns (True, "Correct answer") : If the student function returns expected output when called by reference code. returns (False, error_msg): If the student function fails to return expected output when called by reference code. Returns (False, error_msg): If mandatory arguments are not files or if the required permissions are not given to the file(s). """ # ref_code_path = test_case # clean_ref_code_path, clean_test_case_path = self._set_test_code_file_path(ref_code_path) # if not isfile(clean_ref_code_path): # return False, "No file at %s or Incorrect path" % clean_ref_code_path # if not isfile(self.submit_code_path): # return False, 'No file at %s or Incorrect path' % self.submit_code_path # success = False # self.write_to_submit_code_file(self.submit_code_path, user_answer) # user_output_path, ref_output_path = self.set_file_paths() # compile_command, compile_main = self.get_commands(clean_ref_code_path, user_output_path, ref_output_path) # ret = self._compile_command(compile_command) # proc, stdnt_stderr = ret # stdnt_stderr = self._remove_null_substitute_char(stdnt_stderr) success = False proc, stdnt_out, stdnt_stderr = self.compiled_user_answer stdnt_stderr = self._remove_null_substitute_char(stdnt_stderr) # Only if compilation is successful, the program is executed # And tested with testcases if stdnt_stderr == '': # ret = self._compile_command(self.compile_main) # ret = self._run_command(self.compile_main, # shell=True, # stdout=subprocess.PIPE, # stderr=subprocess.PIPE) proc, main_out, main_err = self.compiled_test_code main_err = self._remove_null_substitute_char(main_err) if main_err == '': ret = self._run_command([self.ref_output_path], stdin=None, stdout=subprocess.PIPE, stderr=subprocess.PIPE) proc, stdout, stderr = ret if proc.returncode == 0: success, err = True, "Correct answer" else: err = stdout + "\n" + stderr os.remove(self.ref_output_path) else: err = "Error:" try: error_lines = main_err.splitlines() for e in error_lines: if ':' in e: err = err + "\n" + e.split(":", 1)[1] else: err = err + "\n" + e except: err = err + "\n" + main_err os.remove(self.user_output_path) else: err = "Compilation Error:" try: error_lines = stdnt_stderr.splitlines() for e in error_lines: if ':' in e: err = err + "\n" + e.split(":", 1)[1] else: err = err + "\n" + e except: err = err + "\n" + stdnt_stderr return success, err # def __init__(self, test_case_data, test, language, user_answer, # ref_code_path=None, in_dir=None): # super(CppCodeEvaluator, self).__init__(test_case_data, test, language, # user_answer, ref_code_path, # in_dir) # self.test_case_args = self.setup() # def setup(self): # super(CppCodeEvaluator, self).setup() # get_ref_path = self.ref_code_path # ref_path, test_case_path = self._set_test_code_file_path(get_ref_path) # self.submit_path = self.create_submit_code_file('submit.c') # # Set file paths #@@@ in different func get_output_file_paths # c_user_output_path = os.getcwd() + '/output' # c_ref_output_path = os.getcwd() + '/executable' # # Set command variables #@@@ This section in different func get_commands # compile_command = 'g++ {0} -c -o {1}'.format(self.submit_path, # c_user_output_path) # compile_main = 'g++ {0} {1} -o {2}'.format(ref_path, # c_user_output_path, # c_ref_output_path) # run_command_args = [c_ref_output_path] # remove_user_output = c_user_output_path #@@@ not required # remove_ref_output = c_ref_output_path #@@@ not required # return (ref_path, self.submit_path, compile_command, compile_main, # run_command_args, remove_user_output, remove_ref_output) # def check_code(self, ref_code_path, submit_code_path, compile_command, # compile_main, run_command_args, remove_user_output, # remove_ref_output): # """ Function validates student code using instructor code as # reference.The first argument ref_code_path, is the path to # instructor code, it is assumed to have executable permission. # The second argument submit_code_path, is the path to the student # code, it is assumed to have executable permission. # Returns # -------- # returns (True, "Correct answer") : If the student function returns # expected output when called by reference code. # returns (False, error_msg): If the student function fails to return # expected output when called by reference code. # Returns (False, error_msg): If mandatory arguments are not files or # if the required permissions are not given to the file(s). # """ # if not isfile(ref_code_path): # return False, "No file at %s or Incorrect path" % ref_code_path # if not isfile(submit_code_path): # return False, 'No file at %s or Incorrect path' % submit_code_path # success = False # ret = self._compile_command(compile_command) # proc, stdnt_stderr = ret # stdnt_stderr = self._remove_null_substitute_char(stdnt_stderr) # # Only if compilation is successful, the program is executed # # And tested with testcases # if stdnt_stderr == '': # ret = self._compile_command(compile_main) # proc, main_err = ret # main_err = self._remove_null_substitute_char(main_err) # if main_err == '': # ret = self._run_command(run_command_args, stdin=None, # stdout=subprocess.PIPE, # stderr=subprocess.PIPE) # proc, stdout, stderr = ret # if proc.returncode == 0: # success, err = True, "Correct answer" # else: # err = stdout + "\n" + stderr # os.remove(remove_ref_output) # else: # err = "Error:" # try: # error_lines = main_err.splitlines() # for e in error_lines: # if ':' in e: # err = err + "\n" + e.split(":", 1)[1] # else: # err = err + "\n" + e # except: # err = err + "\n" + main_err # os.remove(remove_user_output) # else: # err = "Compilation Error:" # try: # error_lines = stdnt_stderr.splitlines() # for e in error_lines: # if ':' in e: # err = err + "\n" + e.split(":", 1)[1] # else: # err = err + "\n" + e # except: # err = err + "\n" + stdnt_stderr # return success, err