Add a test for Django-based file uploads to problems.

common/lib/capa/capa/tests/response_xml_factory.py

@@ -314,24 +314,43 @@ class CodeResponseXMLFactory(ResponseXMLFactory):
         return super(CodeResponseXMLFactory, self).build_xml(**kwargs)
 
     def create_response_element(self, **kwargs):
-        """ Create a <coderesponse> XML element:
+        """
+        Create a <coderesponse> XML element.
 
-            Uses **kwargs:
+        Uses **kwargs:
+
+        *initial_display*: The code that initially appears in the textbox
+                            [DEFAULT: "Enter code here"]
+        *answer_display*: The answer to display to the student
+                            [DEFAULT: "This is the correct answer!"]
+        *grader_payload*: A JSON-encoded string sent to the grader
+                            [DEFAULT: empty dict string]
+        *allowed_files*: A space-separated string of file names.
+                            [DEFAULT: None]
+        *required_files*: A space-separated string of file names.
+                            [DEFAULT: None]
 
-            *initial_display*: The code that initially appears in the textbox
-                                [DEFAULT: "Enter code here"]
-            *answer_display*: The answer to display to the student
-                                [DEFAULT: "This is the correct answer!"]
-            *grader_payload*: A JSON-encoded string sent to the grader
-                                [DEFAULT: empty dict string]
         """
         # Get **kwargs
         initial_display = kwargs.get("initial_display", "Enter code here")
         answer_display = kwargs.get("answer_display", "This is the correct answer!")
         grader_payload = kwargs.get("grader_payload", '{}')
+        allowed_files = kwargs.get("allowed_files", None)
+        required_files = kwargs.get("required_files", None)
 
         # Create the <coderesponse> element
         response_element = etree.Element("coderesponse")
+
+        # If files are involved, create the <filesubmission> element.
+        has_files = allowed_files or required_files
+        if has_files:
+            filesubmission_element = etree.SubElement(response_element, "filesubmission")
+            if allowed_files:
+                filesubmission_element.set("allowed_files", allowed_files)
+            if required_files:
+                filesubmission_element.set("required_files", required_files)
+
+        # Create the <codeparam> element.
         codeparam_element = etree.SubElement(response_element, "codeparam")
 
         # Set the initial display text
@@ -347,8 +366,9 @@ class CodeResponseXMLFactory(ResponseXMLFactory):
         grader_element.text = str(grader_payload)
 
         # Create the input within the response
-        input_element = etree.SubElement(response_element, "textbox")
-        input_element.set("mode", "python")
+        if not has_files:
+            input_element = etree.SubElement(response_element, "textbox")
+            input_element.set("mode", "python")
 
         return response_element
 

lms/djangoapps/courseware/tests/test_submitting_problems.py

@@ -2,8 +2,12 @@
 
 # text processing dependancies
 import json
+import os
 from textwrap import dedent
 
+from mock import patch
+
+from django.conf import settings
 from django.contrib.auth.models import User
 from django.test.client import RequestFactory
 from django.core.urlresolvers import reverse
@@ -18,7 +22,10 @@ from xmodule.modulestore.django import modulestore, editable_modulestore
 #import factories and parent testcase modules
 from xmodule.modulestore.tests.factories import CourseFactory, ItemFactory
 from xmodule.modulestore.tests.django_utils import ModuleStoreTestCase
-from capa.tests.response_xml_factory import OptionResponseXMLFactory, CustomResponseXMLFactory, SchematicResponseXMLFactory
+from capa.tests.response_xml_factory import (
+    OptionResponseXMLFactory, CustomResponseXMLFactory, SchematicResponseXMLFactory,
+    CodeResponseXMLFactory,
+)
 from courseware.tests.helpers import LoginEnrollmentTestCase
 from courseware.tests.modulestore_config import TEST_DATA_MIXED_MODULESTORE
 from lms.lib.xblock.runtime import quote_slashes
@@ -547,6 +554,58 @@ class TestCourseGrader(TestSubmittingProblems):
         self.assertEqual(self.score_for_hw('homework3'), [1.0, 1.0])
 
 
+class ProblemWithUploadedFilesTest(TestSubmittingProblems):
+    """Tests of problems with uploaded files."""
+
+    def setUp(self):
+        super(ProblemWithUploadedFilesTest, self).setUp()
+        self.section = self.add_graded_section_to_course('section')
+
+    def problem_setup(self, name, files):
+        """
+        Create a CodeResponse problem with files to upload.
+        """
+
+        xmldata = CodeResponseXMLFactory().build_xml(
+            allowed_files=files, required_files=files,
+        )
+        ItemFactory.create(
+            parent_location=self.section.location,
+            category='problem',
+            display_name=name,
+            data=xmldata
+        )
+
+        # re-fetch the course from the database so the object is up to date
+        self.refresh_course()
+
+    def test_three_files(self):
+        # Open the test files, and arrange to close them later.
+        filenames = "prog1.py prog2.py prog3.py"
+        fileobjs = [
+            open(os.path.join(settings.COMMON_TEST_DATA_ROOT, "capa", filename))
+            for filename in filenames.split()
+        ]
+        for fileobj in fileobjs:
+            self.addCleanup(fileobj.close)
+
+        self.problem_setup("the_problem", filenames)
+        with patch('courseware.module_render.xqueue_interface.session') as mock_session:
+            resp = self.submit_question_answer("the_problem", {'2_1': fileobjs})
+
+        self.assertEqual(resp.status_code, 200)
+        json_resp = json.loads(resp.content)
+        self.assertEqual(json_resp['success'], "incorrect")
+
+        # See how post got called.
+        name, args, kwargs = mock_session.mock_calls[0]
+        self.assertEqual(name, "post")
+        self.assertEqual(len(args), 1)
+        self.assertTrue(args[0].endswith("/submit/"))
+        self.assertItemsEqual(kwargs.keys(), ["files", "data"])
+        self.assertItemsEqual(kwargs['files'].keys(), filenames.split())
+
+
 class TestPythonGradedResponse(TestSubmittingProblems):
     """
     Check that we can submit a schematic and custom response, and it answers properly.