test parser.sml csc430

test_parser.py

#!/usr/bin/env python

import os

P = True
F = False

tests = {"1;" : P,
         "(1);" : P,
         "1;\n2;" : P,
         "(1;" : F,
         "42);" : F,
         "(((1))" : F,
         "5*5;" : P,

}



def get_output_str(res):
    if res == 0:
        return  "no error"
    else:
        return "error detected"

num_tests = len(tests.keys())
num_pass = 0

def run_test(input_str, expected_result):
    global num_pass
    res = os.system("echo '%s' | sml parser.sml 1> /dev/null" % input_str)
    pass_or_fail = ""
    if (res == 0 and expected_result) or \
       (res != 0 and not expected_result):
        pass_or_fail = "Pass"
        num_pass += 1
    else:
        pass_or_fail = "Fail"

    print "%s => %s\t\t\t%s" % (input_str, get_output_str(res), pass_or_fail)
    print "----"



for test_string in tests:
    run_test(test_string, tests[test_string])


print "\npassed:", num_pass
print "failed:", num_tests - num_pass