Added documentation to the test cases

tests/test_pipeline.py

@@ -1,8 +1,10 @@
 import copy
 import unittest
-from FourmiCrawler import pipelines, spider, items
+
 from scrapy.exceptions import DropItem
 
+from FourmiCrawler import pipelines, spider, items
+
 
 class TestPipelines(unittest.TestCase):
 
@@ -10,6 +12,7 @@ class TestPipelines(unittest.TestCase):
         self.testItem = items.Result()
 
     def test_NonePipeline(self):
+        #Testing the pipeline that replaces the None values in items.
         self.testItem["value"] = "abc"
         pipe = pipelines.RemoveNonePipeline()
         processed = pipe.process_item(self.testItem, spider.FourmiSpider())
@@ -22,6 +25,7 @@ class TestPipelines(unittest.TestCase):
                 self.assertIs(processed[key], "")
 
     def test_DuplicatePipeline(self):
+        #Testing the pipeline that removes duplicates.
         self.testItem["attribute"] = "test"
         self.testItem["value"] = "test"
         self.testItem["conditions"] = "test"
@@ -35,6 +39,7 @@ class TestPipelines(unittest.TestCase):
         self.assertEqual(pipe.process_item(otherItem, spider.FourmiSpider()), otherItem)
 
     def test_AttributeSelection(self):
+        #Testing the pipeline that selects attributes.
         item1 = copy.deepcopy(self.testItem)
         item2 = copy.deepcopy(self.testItem)