adding unittests

atdb/taskdatabase/tests.py

@@ -334,4 +334,37 @@ class TestCalculatedQualities(TestCase):
         self.assertEqual(quality_values,{'poor': 0, 'moderate': 1, 'good': 3})
 
         # 3 out of 4 are 'good', 75% is above the 50% threshold, so 'good'
-        self.assertEqual(quality_per_sasid,'good')
+        self.assertEqual(quality_per_sasid,'good')
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+
+    def test_faulty_thresholds(self):
+        """
+        what happens if the user makes a typo in the threshold?
+        """
+
+        # faulty thresholds
+        quality_thresholds = {
+            "moderate": "a",
+            "poor": 50,
+            "overall_poor": 50,
+            "overall_good": 90,
+        }
+
+        # get the tasks for sas_id 54321
+        tasks_for_this_sasid = Task.objects.filter(sas_id=54321)
+
+        # run the algorithms and gather the values
+        quality_values = {'poor': 0, 'moderate': 0, 'good': 0}
+        quality_per_sasid = None
+
+        for task in tasks_for_this_sasid:
+            q = qualities.calculate_qualities(task, tasks_for_this_sasid, quality_thresholds)
+            try:
+                key = task.calculated_qualities['per_task']
+                quality_values[key] = quality_values[key] + 1
+                quality_per_sasid = task.calculated_qualities['per_sasid']
+            except:
+                # ignore the tasks that have no calculated quality.
+                pass
+
+        self.assertEqual(quality_values, {'poor': 0, 'moderate': 0, 'good': 0})
+        self.assertEqual(quality_per_sasid, None)
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