Code Review: Code refactoring

- Rename files
- Create function for @classmethod call
- Fix current, add new testcases
- Fix views to fetch solution/ref_code_path fields in question post save
- Fix errors

1 files changed, 86 insertions, 0 deletions

diff --git a/testapp/exam/evaluate_scilab_code.py b/testapp/exam/evaluate_scilab_code.py
new file mode 100644
index 0000000..cc46605
--- /dev/null
+++ b/testapp/exam/evaluate_scilab_code.py
@@ -0,0 +1,86 @@
+#!/usr/bin/env python
+import traceback
+import os
+from os.path import join, isfile
+import subprocess
+import re
+import importlib
+
+# local imports
+from evaluate_code import EvaluateCode
+from language_registry import registry
+
+
+class EvaluateScilabCode(EvaluateCode):
+    """Tests the Scilab code obtained from Code Server"""
+    ## Public Protocol ##########
+    def evaluate_code(self):
+        submit_path = self.create_submit_code_file('function.sci')
+        ref_path, test_case_path = self.set_test_code_file_path()
+        success = False
+
+        cmd = 'printf "lines(0)\nexec(\'{0}\',2);\nquit();"'.format(ref_path)
+        cmd += ' | timeout 8 scilab-cli -nb'
+        ret = self.run_command(cmd,
+                                shell=True,
+                                stdout=subprocess.PIPE,
+                                stderr=subprocess.PIPE)
+        proc, stdout, stderr = ret
+
+        # Get only the error.
+        stderr = self._get_error(stdout)
+        if stderr is None:
+            # Clean output
+            stdout = self._strip_output(stdout)
+            if proc.returncode == 5:
+                success, err = True, "Correct answer"
+            else:
+                err = add_err + stdout
+        else:
+            err = add_err + stderr
+
+        # Delete the created file.
+        os.remove(submit_path)
+
+        return success, err
+
+    ## Private Protocol ##########
+    def _remove_scilab_exit(self, string):
+        """
+            Removes exit, quit and abort from the scilab code
+        """
+        new_string = ""
+        i=0
+        for line in string.splitlines():
+            new_line = re.sub(r"exit.*$","",line)
+            new_line = re.sub(r"quit.*$","",new_line)
+            new_line = re.sub(r"abort.*$","",new_line)
+            if line != new_line:
+                i=i+1
+            new_string = new_string +'\n'+ new_line
+        return new_string, i
+
+    ## Private Protocol ##########
+    def _get_error(self, string):
+        """
+            Fetches only the error from the string.
+            Returns None if no error.
+        """
+        obj =  re.search("!.+\n.+",string);
+        if obj:
+            return obj.group()
+        return None
+
+    ## Private Protocol ##########
+    def _strip_output(self, out):
+        """
+            Cleans whitespace from the output
+        """
+        strip_out = "Message"
+        for l in out.split('\n'):
+            if l.strip():
+                strip_out = strip_out+"\n"+l.strip()
+        return strip_out
+
+
+registry.register('scilab', EvaluateScilabCode)
\ No newline at end of file