add tests compatible with nose

tests/essays_with_symbols/answer.txt

+<b><fg>In order to replicate this experiment, I would need to know additional information such as the four different samples that they used (because I could have choosen metal, carbboard&&&&&and many other sample materials that they&;;;& didn't use and would get different results. Also I would also<>>> need to know the amount of vinegar to pour because this can caute a major change. Lastly, they might want to tell//////where to sit the samples while they dry for 30 minutes because if they are sitting in room temp. or by a light source makes a difference too.<b><b>

tests/essays_with_symbols/answer.txt~

+In order to replicate this experiment, I would need to know additional information such as the four different samples that they used (because I could have choosen metal, carbboard and many other sample materials that they didn't use and would get different results. Also I would also need to know the amount of vinegar to pour because this can caute a major change. Lastly, they might want to tell where to sit the samples while they dry for 30 minutes because if they are sitting in room temp. or by a light source makes a difference too.

tests/essays_with_symbols/payload.json

+{"grader":"models/essay_set_1.p"}

tests/essays_with_symbols/wrong.txt

+In order to conduct the experiment, the students would need to know the mass of the marble, the height of the drop, and the air temperature.

tests/essays_with_symbols/wrong.txt~

+this is an incorrect response

tests/test.py

@@ -44,16 +44,22 @@ def send(payload, answer):
 def check_contains(string, substr):
     if not substr in string:
         print "ERROR: Expected '{0}' in '{1}'".format(substr, string)
+        return False
+    else:
+        return True
 
 def check_not_contains(string, substr):
     if substr in string:
         print "ERROR: Expected '{0}' not to be in '{1}'".format(substr, string)
+        return False
+    else:
+        return True
 
 def check_right(string):
-    check_contains(string, '\"correct\": true')
+    return check_contains(string, '\"correct\": true')
 
 def check_wrong(string):
-    check_contains(string, '\"correct\": false')
+    return check_contains(string, '\"correct\": false')
 
 def globs(dirname, *patterns):
     """
@@ -91,12 +97,23 @@ def check(dirname):
     for name in globs(dirname, 'answer*.txt', 'right*.py'):
         print "Checking correct response from {0}".format(name)
         answer = contents(name)
-        check_right(send(payload, answer))
+        right=check_right(send(payload, answer))
 
     for name in globs(dirname, 'wrong*.txt'):
         print "Checking wrong response from {0}".format(name)
         answer = contents(name)
-        check_wrong(send(payload, answer))
+        wrong=check_wrong(send(payload, answer))
+
+    assert wrong and right
+
+
+def test():
+    #root = args.root or '.'
+    root=os.path.dirname( os.path.abspath(__file__ ))
+    for dirpath, _, _ in os.walk(root):
+        print("checking" + dirpath)
+        yield check, dirpath
+
 
 def main(argv):
     global xserver

tests/test_grader.py

+__author__ = 'vik'