Miscellaneous updates and fixes.

* Hide "Test Code" button after we check the problem
* Only set the state of the problem to 'queued' if we have successfully
queued the problem
* Unit tests for bugs and new functionality

common/lib/capa/capa/inputtypes.py

@@ -668,6 +668,8 @@ class MatlabInput(CodeInput):
         # Check if problem has been queued
         self.queuename = 'matlab'
         self.queue_msg = ''
+        # this is only set if we don't have a graded response
+        # the graded response takes precedence
         if 'queue_msg' in self.input_state and self.status in ['queued', 'incomplete', 'unsubmitted']:
             self.queue_msg = self.input_state['queue_msg']
         if 'queuestate' in self.input_state and self.input_state['queuestate'] == 'queued':
@@ -712,11 +714,23 @@ class MatlabInput(CodeInput):
             self.input_state['queuestate'] = None
             self.input_state['queuekey'] = None
 
+    def button_enabled(self):
+        """ Return whether or not we want the 'Test Code' button visible
+
+        Right now, we only want this button to show up when a problem has not been
+        checked.
+        """
+        if self.status in ['correct', 'incorrect']:
+            return False
+        else:
+            return True
+
     def _extra_context(self):
         ''' Set up additional context variables'''
         extra_context = {
             'queue_len': str(self.queue_len),
-            'queue_msg': self.queue_msg
+            'queue_msg': self.queue_msg,
+            'button_enabled': self.button_enabled(),
         }
         return extra_context
 
@@ -766,10 +780,6 @@ class MatlabInput(CodeInput):
             lms_key=queuekey,
             queue_name=self.queuename)
 
-        # save the input state
-        self.input_state['queuekey'] = queuekey
-        self.input_state['queuestate'] = 'queued'
-
         # construct xqueue body
         student_info = {'anonymous_student_id': anonymous_student_id,
                         'submission_time': qtime}
@@ -779,6 +789,10 @@ class MatlabInput(CodeInput):
 
         (error, msg) = qinterface.send_to_queue(header=xheader,
                                                 body=json.dumps(contents))
+        # save the input state if successful
+        if error == 0:
+            self.input_state['queuekey'] = queuekey
+            self.input_state['queuestate'] = 'queued'
 
         return {'success': error == 0, 'message': msg}
 

common/lib/capa/capa/templates/matlabinput.html

@@ -33,9 +33,11 @@
     ${queue_msg|n}
   </div>
 
+  % if button_enabled:
   <div class="plot-button">
       <input type="button" class="save" name="plot-button" id="plot_${id}" value="Test Code" />
   </div>
+  %endif
 
   <script>
     // Note: We need to make the area follow the CodeMirror for this to work.
@@ -91,7 +93,7 @@
                   window.location.reload();
               }
               else {
-                  gentle_alert(problem_elt, msg);
+                  gentle_alert(problem_elt, response.message);
               }
           }
 
@@ -102,7 +104,7 @@
                         {'submission': submission}, plot_callback);
                   }
                   else {
-                      gentle_alert(problem_elt, msg);
+                      gentle_alert(problem_elt, response.message);
                   }
           }
 

common/lib/capa/capa/tests/test_inputtypes.py

@@ -384,6 +384,7 @@ class MatlabTest(unittest.TestCase):
                     'linenumbers': 'true',
                     'hidden': '',
                     'tabsize': int(self.tabsize),
+                    'button_enabled': True,
                     'queue_len': '3'}
 
         self.assertEqual(context, expected)
@@ -409,10 +410,37 @@ class MatlabTest(unittest.TestCase):
                     'linenumbers': 'true',
                     'hidden': '',
                     'tabsize': int(self.tabsize),
+                    'button_enabled': True,
                     'queue_len': '3'}
 
         self.assertEqual(context, expected)
 
+    def test_rendering_when_completed(self):
+        for status in ['correct', 'incorrect']:
+            state = {'value': 'print "good evening"',
+                     'status': status,
+                     'input_state': {},
+                     }
+            elt = etree.fromstring(self.xml)
+
+            the_input = self.input_class(test_system, elt, state)
+            context = the_input._get_render_context()
+            expected = {'id': 'prob_1_2',
+                        'value': 'print "good evening"',
+                        'status': status,
+                        'msg': '',
+                        'mode': self.mode,
+                        'rows': self.rows,
+                        'cols': self.cols,
+                        'queue_msg': '',
+                        'linenumbers': 'true',
+                        'hidden': '',
+                        'tabsize': int(self.tabsize),
+                        'button_enabled': False,
+                        'queue_len': '0'}
+
+            self.assertEqual(context, expected)
+
     def test_rendering_while_queued(self):
         state = {'value': 'print "good evening"',
                  'status': 'incomplete',
@@ -433,6 +461,7 @@ class MatlabTest(unittest.TestCase):
                     'linenumbers': 'true',
                     'hidden': '',
                     'tabsize': int(self.tabsize),
+                    'button_enabled': True,
                     'queue_len': '1'}
 
         self.assertEqual(context, expected)
@@ -447,6 +476,17 @@ class MatlabTest(unittest.TestCase):
         self.assertTrue(self.the_input.input_state['queuekey'] is not None)
         self.assertEqual(self.the_input.input_state['queuestate'], 'queued')
 
+    def test_plot_data_failure(self):
+        get = {'submission': 'x = 1234;'}
+        error_message = 'Error message!'
+        test_system.xqueue['interface'].send_to_queue.return_value = (1, error_message)
+        response = self.the_input.handle_ajax("plot", get)
+        self.assertFalse(response['success'])
+        self.assertEqual(response['message'], error_message)
+        self.assertTrue('queuekey' not in self.the_input.input_state)
+        self.assertTrue('queuestate' not in self.the_input.input_state)
+        test_system.xqueue['interface'].send_to_queue.return_value = (0, 'Success!')
+
     def test_ungraded_response_success(self):
         queuekey = 'abcd'
         input_state = {'queuekey': queuekey, 'queuestate': 'queued'}
@@ -583,7 +623,6 @@ class ImageInputTest(unittest.TestCase):
         self.check('[12 13 14]', 0, 0)
 
 
-
 class CrystallographyTest(unittest.TestCase):
     '''
     Check that crystallography inputs work
@@ -613,8 +652,7 @@ class CrystallographyTest(unittest.TestCase):
                     'status': 'unsubmitted',
                     'msg': '',
                     'width': width,
-                    'height': height,
-                   }
+                    'height': height}
 
         self.assertEqual(context, expected)
 
@@ -654,13 +692,11 @@ class VseprTest(unittest.TestCase):
                     'width': width,
                     'height': height,
                     'molecules': molecules,
-                    'geometries': geometries,
-                   }
+                    'geometries': geometries}
 
         self.assertEqual(context, expected)
 
 
-
 class ChemicalEquationTest(unittest.TestCase):
     '''
     Check that chemical equation inputs work.
@@ -674,7 +710,6 @@ class ChemicalEquationTest(unittest.TestCase):
         state = {'value': 'H2OYeah', }
         self.the_input = lookup_tag('chemicalequationinput')(test_system, element, state)
 
-
     def test_rendering(self):
         ''' Verify that the render context matches the expected render context'''
         context = self.the_input._get_render_context()
@@ -688,10 +723,8 @@ class ChemicalEquationTest(unittest.TestCase):
                     }
         self.assertEqual(context, expected)
 
-    
     def test_chemcalc_ajax_sucess(self):
         ''' Verify that using the correct dispatch and valid data produces a valid response'''
-        
         data = {'formula': "H"}
         response = self.the_input.handle_ajax("preview_chemcalc", data)
 
@@ -700,9 +733,6 @@ class ChemicalEquationTest(unittest.TestCase):
         self.assertEqual(response['error'], "")
 
 
-    
-
-
 class DragAndDropTest(unittest.TestCase):
     '''
     Check that drag and drop inputs work