fix(tests): Remove drop_collection for reducing the flakiness of transaction

Author: abhinand-c

tests/asynchronous/test_context_managers.py

@@ -368,8 +368,6 @@ async def test_updating_a_document_within_a_transaction_that_fails(self):
         class A(Document):
             name = StringField()
 
-        await A.adrop_collection()
-
         a_doc = await A.aobjects.create(name="a")
 
         with pytest.raises(TestRollbackError):
@@ -386,8 +384,6 @@ async def test_creating_a_document_within_a_transaction(self):
         class A(Document):
             name = StringField()
 
-        await A.adrop_collection()
-
         # ensure the collection is created (needed for transaction with MongoDB <= 4.2)
         await A.aobjects.create(name="test")
         await A.aobjects.delete()

tests/synchronous/test_context_managers.py

@@ -397,8 +397,6 @@ def test_updating_a_document_within_a_transaction_that_fails(self):
         class A(Document):
             name = StringField()
 
-        A.drop_collection()
-
         a_doc = A.objects.create(name="a")
 
         with pytest.raises(TestRollbackError):
@@ -415,8 +413,6 @@ def test_creating_a_document_within_a_transaction(self):
         class A(Document):
             name = StringField()
 
-        A.drop_collection()
-
         # ensure collection is created (needed for transaction with MongoDB <= 4.2)
         A.objects.create(name="test")
         A.objects.delete()