Add s3 method to remove transformed dvla files

tests/app/aws/test_s3.py

@@ -1,7 +1,11 @@
-from app.aws.s3 import get_s3_file
+from unittest.mock import call
+
+from flask import current_app
+
+from app.aws.s3 import get_s3_file, remove_transformed_dvla_file
 
 
-def test_get_s3_file_makes_correct_call(sample_service, sample_job, mocker):
+def test_get_s3_file_makes_correct_call(notify_api, mocker):
     get_s3_mock = mocker.patch('app.aws.s3.get_s3_object')
     get_s3_file('foo-bucket', 'bar-file.txt')
 
@@ -9,3 +13,15 @@ def test_get_s3_file_makes_correct_call(sample_service, sample_job, mocker):
         'foo-bucket',
         'bar-file.txt'
     )
+
+
+def test_remove_transformed_dvla_file_makes_correct_call(notify_api, mocker):
+    s3_mock = mocker.patch('app.aws.s3.get_s3_object')
+    fake_uuid = '5fbf9799-6b9b-4dbb-9a4e-74a939f3bb49'
+
+    remove_transformed_dvla_file(fake_uuid)
+
+    s3_mock.assert_has_calls([
+        call(current_app.config['DVLA_UPLOAD_BUCKET_NAME'], '{}-dvla-job.text'.format(fake_uuid)),
+        call().delete()
+    ])