Merge pull request #105 from adityacp/stdin_stdout_evaluator

Stdin stdout evaluators

1 files changed, 22 insertions, 0 deletions

diff --git a/yaksh/stdio_evaluator.py b/yaksh/stdio_evaluator.py
new file mode 100644
index 0000000..4f5cfaf
--- /dev/null
+++ b/yaksh/stdio_evaluator.py
@@ -0,0 +1,22 @@
+class Evaluator(object):
+
+    def evaluate(self, user_answer, proc, expected_input, expected_output):
+        success = False
+        ip = expected_input.replace(",", " ")
+        user_output, output_err = proc.communicate(input='{0}\n'.format(ip))
+        expected_output = expected_output.replace("\r", "")
+        if not expected_input:
+            error_msg = "Expected Output is {0} ".\
+                        format(repr(expected_output))
+        else:
+            error_msg = " Given Input is\n {0} \n Expected Output is {1} ".\
+                        format(expected_input, repr(expected_output))
+        if output_err == '':
+            if user_output == expected_output:
+                success, err = True, "Correct Answer"
+            else:
+                err = " Incorrect Answer\n" + error_msg +\
+                      "\n Your output is {0}".format(repr(user_output))
+        else:
+            err = "Error:"+"\n"+output_err
+        return success, err