Renamed the header of the CSV to 'to' from 'number' to allow for email jobs

- added new columns to Job and Notification to capture the start/end dates accurately

app/celery/tasks.py

@@ -3,13 +3,14 @@ from app import notify_celery, encryption, firetext_client, aws_ses_client
 from app.clients.email.aws_ses import AwsSesClientException
 from app.clients.sms.firetext import FiretextClientException
 from app.dao.templates_dao import dao_get_template_by_id
-from app.dao.notifications_dao import save_notification
+from app.dao.notifications_dao import dao_create_notification, dao_update_notification
 from app.dao.jobs_dao import dao_update_job, dao_get_job_by_id
 from app.models import Notification
 from flask import current_app
 from sqlalchemy.exc import SQLAlchemyError
 from app.aws import s3
-from app.csv import get_mobile_numbers_from_csv
+from app.csv import get_recipient_from_csv
+from datetime import datetime
 
 
 @notify_celery.task(name="process-job")
@@ -19,28 +20,38 @@ def process_job(job_id):
     dao_update_job(job)
 
     file = s3.get_job_from_s3(job.bucket_name, job_id)
-    mobile_numbers = get_mobile_numbers_from_csv(file)
+    recipients = get_recipient_from_csv(file)
 
-    for mobile_number in mobile_numbers:
-        notification = encryption.encrypt({
+    for recipient in recipients:
+        encrypted = encryption.encrypt({
             'template': job.template_id,
             'job': str(job.id),
-            'to': mobile_number
+            'to': recipient
         })
 
-        send_sms.apply_async((
-            str(job.service_id),
-            str(create_uuid()),
-            notification),
-            queue='sms'
-        )
+        if job.template.template_type == 'sms':
+            send_sms.apply_async((
+                str(job.service_id),
+                str(create_uuid()),
+                encrypted),
+                queue='bulk-sms'
+            )
+
+        if job.template.template_type == 'email':
+            send_email.apply_async((
+                str(job.service_id),
+                str(create_uuid()),
+                job.template.subject,
+                "{}@{}".format(job.service.email_from, current_app.config['NOTIFY_EMAIL_DOMAIN']),
+                encrypted),
+                queue='bulk-email')
 
     job.status = 'finished'
     dao_update_job(job)
 
 
 @notify_celery.task(name="send-sms")
-def send_sms(service_id, notification_id, encrypted_notification):
+def send_sms(service_id, notification_id, encrypted_notification, created_at):
     notification = encryption.decrypt(encrypted_notification)
     template = dao_get_template_by_id(notification['template'])
 
@@ -51,22 +62,25 @@ def send_sms(service_id, notification_id, encrypted_notification):
             to=notification['to'],
             service_id=service_id,
             job_id=notification.get('job', None),
-            status='sent'
+            status='sent',
+            created_at=created_at,
+            sent_at=datetime.utcnow()
         )
-        save_notification(notification_db_object)
+        dao_create_notification(notification_db_object)
 
         try:
             firetext_client.send_sms(notification['to'], template.content)
         except FiretextClientException as e:
             current_app.logger.debug(e)
-            save_notification(notification_db_object, {"status": "failed"})
+            notification_db_object.status = 'failed'
+            dao_update_notification(notification_db_object)
 
     except SQLAlchemyError as e:
         current_app.logger.debug(e)
 
 
 @notify_celery.task(name="send-email")
-def send_email(service_id, notification_id, subject, from_address, encrypted_notification):
+def send_email(service_id, notification_id, subject, from_address, encrypted_notification, created_at):
     notification = encryption.decrypt(encrypted_notification)
     template = dao_get_template_by_id(notification['template'])
 
@@ -77,9 +91,11 @@ def send_email(service_id, notification_id, subject, from_address, encrypted_not
             to=notification['to'],
             service_id=service_id,
             job_id=notification.get('job', None),
-            status='sent'
+            status='sent',
+            created_at=created_at,
+            sent_at=datetime.utcnow()
         )
-        save_notification(notification_db_object)
+        dao_create_notification(notification_db_object)
 
         try:
             aws_ses_client.send_email(
@@ -90,7 +106,8 @@ def send_email(service_id, notification_id, subject, from_address, encrypted_not
             )
         except AwsSesClientException as e:
             current_app.logger.debug(e)
-            save_notification(notification_db_object, {"status": "failed"})
+            notification_db_object.status = 'failed'
+            dao_update_notification(notification_db_object)
 
     except SQLAlchemyError as e:
         current_app.logger.debug(e)

app/csv.py

@@ -1,12 +1,12 @@
 import csv
 
 
-def get_mobile_numbers_from_csv(file_data):
+def get_recipient_from_csv(file_data):
     numbers = []
     reader = csv.DictReader(
         file_data.splitlines(),
         lineterminator='\n',
         quoting=csv.QUOTE_NONE)
     for i, row in enumerate(reader):
-        numbers.append(row['phone'].replace(' ', ''))
+        numbers.append(row['to'].replace(' ', ''))
     return numbers

app/dao/notifications_dao.py

@@ -2,15 +2,13 @@ from app import db
 from app.models import Notification
 
 
-def save_notification(notification, update_dict={}):
-    if update_dict:
-        update_dict.pop('id', None)
-        update_dict.pop('job', None)
-        update_dict.pop('service', None)
-        update_dict.pop('template', None)
-        Notification.query.filter_by(id=notification.id).update(update_dict)
-    else:
-        db.session.add(notification)
+def dao_create_notification(notification):
+    db.session.add(notification)
+    db.session.commit()
+
+
+def dao_update_notification(notification):
+    db.session.add(notification)
     db.session.commit()
 
 

app/models.py

@@ -160,6 +160,16 @@ class Job(db.Model):
         onupdate=datetime.datetime.now)
     status = db.Column(db.Enum(*JOB_STATUS_TYPES, name='job_status_types'), nullable=False, default='pending')
     notification_count = db.Column(db.Integer, nullable=False)
+    processing_started = db.Column(
+        db.DateTime,
+        index=False,
+        unique=False,
+        nullable=True)
+    processing_finished = db.Column(
+        db.DateTime,
+        index=False,
+        unique=False,
+        nullable=True)
 
 
 VERIFY_CODE_TYPES = ['email', 'sms']
@@ -214,8 +224,13 @@ class Notification(db.Model):
         db.DateTime,
         index=False,
         unique=False,
-        nullable=False,
-        default=datetime.datetime.now)
+        nullable=False)
+    sent_at = db.Column(
+        db.DateTime,
+        index=False,
+        unique=False,
+        nullable=True)
+    sent_by = db.Column(db.String, nullable=True)
     updated_at = db.Column(
         db.DateTime,
         index=False,

migrations/versions/0022_add_processing_dates.py

@@ -0,0 +1,26 @@
+"""empty message
+
+Revision ID: 0022_add_processing_dates
+Revises: 0021_add_job_metadata
+Create Date: 2016-02-24 17:15:47.457200
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '0022_add_processing_dates'
+down_revision = '0021_add_job_metadata'
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    op.add_column('jobs', sa.Column('processing_finished', sa.DateTime(), nullable=True))
+    op.add_column('jobs', sa.Column('processing_started', sa.DateTime(), nullable=True))
+    op.add_column('notifications', sa.Column('sent_at', sa.DateTime(), nullable=True))
+
+
+def downgrade():
+    op.drop_column('notifications', 'sent_at')
+    op.drop_column('jobs', 'processing_started')
+    op.drop_column('jobs', 'processing_finished')

migrations/versions/0023_add_sender.py

@@ -0,0 +1,26 @@
+"""empty message
+
+Revision ID: d98c7c20f1d4
+Revises: 0022_add_processing_dates
+Create Date: 2016-02-24 17:18:21.942772
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = 'd98c7c20f1d4'
+down_revision = '0022_add_processing_dates'
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('notifications', sa.Column('sent_by', sa.String(), nullable=True))
+    ### end Alembic commands ###
+
+
+def downgrade():
+    ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('notifications', 'sent_by')
+    ### end Alembic commands ###

scripts/run_celery.sh

@@ -3,4 +3,4 @@
 set -e
 
 source environment.sh
-celery -A run_celery.notify_celery worker --loglevel=INFO --logfile=/var/log/notify/application.log --concurrency=4 -Q sms,sms-code,email-code,email,process-job
+celery -A run_celery.notify_celery worker --loglevel=INFO --logfile=/var/log/notify/application.log --concurrency=4 -Q sms,sms-code,email-code,email,process-job,bulk-sms,bulk-email

test_csv_files/email.csv

@@ -0,0 +1,2 @@
+to
+test@test.com

test_csv_files/empty.csv

@@ -0,0 +1 @@
+to

test_csv_files/multiple_email.csv

@@ -0,0 +1,12 @@
+to
+test1@test.com
+test2@test.com
+test3@test.com
+test4@test.com
+test5@test.com
+test6@test.com
+test7@test.com
+test8@test.com
+test9@test.com
+test0@test.com
+

test_csv_files/multiple_sms.csv

@@ -1,4 +1,4 @@
-phone
+to
 +441234123121
 +441234123122
 +441234123123

test_csv_files/sms.csv

@@ -1,2 +1,2 @@
-phone
+to
 +441234123123

tests/app/celery/test_tasks.py

@@ -11,6 +11,7 @@ from sqlalchemy.orm.exc import NoResultFound
 from app.celery.tasks import s3
 from app.celery import tasks
 from tests.app import load_example_csv
+from datetime import datetime
 
 
 def test_should_process_sms_job(sample_job, mocker):
@@ -26,12 +27,45 @@ def test_should_process_sms_job(sample_job, mocker):
         (str(sample_job.service_id),
          "uuid",
          "something_encrypted"),
-        queue="sms"
+        queue="bulk-sms"
     )
     job = jobs_dao.dao_get_job_by_id(sample_job.id)
     assert job.status == 'finished'
 
 
+def test_should_not_create_send_task_for_empty_file(sample_job, mocker):
+    mocker.patch('app.celery.tasks.s3.get_job_from_s3', return_value=load_example_csv('empty'))
+    mocker.patch('app.celery.tasks.send_sms.apply_async')
+
+    process_job(sample_job.id)
+
+    s3.get_job_from_s3.assert_called_once_with(sample_job.bucket_name, sample_job.id)
+    job = jobs_dao.dao_get_job_by_id(sample_job.id)
+    assert job.status == 'finished'
+    tasks.send_sms.apply_async.assert_not_called
+
+
+def test_should_process_email_job(sample_email_job, mocker):
+    mocker.patch('app.celery.tasks.s3.get_job_from_s3', return_value=load_example_csv('email'))
+    mocker.patch('app.celery.tasks.send_email.apply_async')
+    mocker.patch('app.encryption.encrypt', return_value="something_encrypted")
+    mocker.patch('app.celery.tasks.create_uuid', return_value="uuid")
+
+    process_job(sample_email_job.id)
+
+    s3.get_job_from_s3.assert_called_once_with(sample_email_job.bucket_name, sample_email_job.id)
+    tasks.send_email.apply_async.assert_called_once_with(
+        (str(sample_email_job.service_id),
+         "uuid",
+         sample_email_job.template.subject,
+         "{}@{}".format(sample_email_job.service.email_from, "test.notify.com"),
+         "something_encrypted"),
+        queue="bulk-email"
+    )
+    job = jobs_dao.dao_get_job_by_id(sample_email_job.id)
+    assert job.status == 'finished'
+
+
 def test_should_process_all_sms_job(sample_job, mocker):
     mocker.patch('app.celery.tasks.s3.get_job_from_s3', return_value=load_example_csv('multiple_sms'))
     mocker.patch('app.celery.tasks.send_sms.apply_async')
@@ -55,11 +89,13 @@ def test_should_send_template_to_correct_sms_provider_and_persist(sample_templat
     mocker.patch('app.firetext_client.send_sms')
 
     notification_id = uuid.uuid4()
-
+    now = datetime.utcnow()
     send_sms(
         sample_template.service_id,
         notification_id,
-        "encrypted-in-reality")
+        "encrypted-in-reality",
+        now
+    )
 
     firetext_client.send_sms.assert_called_once_with("+441234123123", sample_template.content)
     persisted_notification = notifications_dao.get_notification(sample_template.service_id, notification_id)
@@ -67,6 +103,8 @@ def test_should_send_template_to_correct_sms_provider_and_persist(sample_templat
     assert persisted_notification.to == '+441234123123'
     assert persisted_notification.template_id == sample_template.id
     assert persisted_notification.status == 'sent'
+    assert persisted_notification.created_at == now
+    assert persisted_notification.sent_at > now
     assert not persisted_notification.job_id
 
 
@@ -80,11 +118,12 @@ def test_should_send_template_to_correct_sms_provider_and_persist_with_job_id(sa
     mocker.patch('app.firetext_client.send_sms')
 
     notification_id = uuid.uuid4()
-
+    now = datetime.utcnow()
     send_sms(
         sample_job.service.id,
         notification_id,
-        "encrypted-in-reality")
+        "encrypted-in-reality",
+        now)
 
     firetext_client.send_sms.assert_called_once_with("+441234123123", sample_job.template.content)
     persisted_notification = notifications_dao.get_notification(sample_job.template.service_id, notification_id)
@@ -93,9 +132,11 @@ def test_should_send_template_to_correct_sms_provider_and_persist_with_job_id(sa
     assert persisted_notification.job_id == sample_job.id
     assert persisted_notification.template_id == sample_job.template.id
     assert persisted_notification.status == 'sent'
+    assert persisted_notification.sent_at > now
+    assert persisted_notification.created_at == now
 
 
-def test_should_send_template_to_email_provider_and_persist(sample_email_template, mocker):
+def test_should_use_email_template_and_persist(sample_email_template, mocker):
     notification = {
         "template": sample_email_template.id,
         "to": "my_email@my_email.com"
@@ -104,13 +145,14 @@ def test_should_send_template_to_email_provider_and_persist(sample_email_templat
     mocker.patch('app.aws_ses_client.send_email')
 
     notification_id = uuid.uuid4()
-
+    now = datetime.utcnow()
     send_email(
         sample_email_template.service_id,
         notification_id,
         'subject',
         'email_from',
-        "encrypted-in-reality")
+        "encrypted-in-reality",
+        now)
 
     aws_ses_client.send_email.assert_called_once_with(
         "email_from",
@@ -122,6 +164,8 @@ def test_should_send_template_to_email_provider_and_persist(sample_email_templat
     assert persisted_notification.id == notification_id
     assert persisted_notification.to == 'my_email@my_email.com'
     assert persisted_notification.template_id == sample_email_template.id
+    assert persisted_notification.created_at == now
+    assert persisted_notification.sent_at > now
     assert persisted_notification.status == 'sent'
 
 
@@ -132,13 +176,15 @@ def test_should_persist_notification_as_failed_if_sms_client_fails(sample_templa
     }
     mocker.patch('app.encryption.decrypt', return_value=notification)
     mocker.patch('app.firetext_client.send_sms', side_effect=FiretextClientException())
+    now = datetime.utcnow()
 
     notification_id = uuid.uuid4()
 
     send_sms(
         sample_template.service_id,
         notification_id,
-        "encrypted-in-reality")
+        "encrypted-in-reality",
+        now)
 
     firetext_client.send_sms.assert_called_once_with("+441234123123", sample_template.content)
     persisted_notification = notifications_dao.get_notification(sample_template.service_id, notification_id)
@@ -146,6 +192,8 @@ def test_should_persist_notification_as_failed_if_sms_client_fails(sample_templa
     assert persisted_notification.to == '+441234123123'
     assert persisted_notification.template_id == sample_template.id
     assert persisted_notification.status == 'failed'
+    assert persisted_notification.created_at == now
+    assert persisted_notification.sent_at > now
 
 
 def test_should_persist_notification_as_failed_if_email_client_fails(sample_email_template, mocker):
@@ -155,6 +203,7 @@ def test_should_persist_notification_as_failed_if_email_client_fails(sample_emai
     }
     mocker.patch('app.encryption.decrypt', return_value=notification)
     mocker.patch('app.aws_ses_client.send_email', side_effect=AwsSesClientException())
+    now = datetime.utcnow()
 
     notification_id = uuid.uuid4()
 
@@ -163,7 +212,8 @@ def test_should_persist_notification_as_failed_if_email_client_fails(sample_emai
         notification_id,
         'subject',
         'email_from',
-        "encrypted-in-reality")
+        "encrypted-in-reality",
+        now)
 
     aws_ses_client.send_email.assert_called_once_with(
         "email_from",
@@ -176,6 +226,8 @@ def test_should_persist_notification_as_failed_if_email_client_fails(sample_emai
     assert persisted_notification.to == 'my_email@my_email.com'
     assert persisted_notification.template_id == sample_email_template.id
     assert persisted_notification.status == 'failed'
+    assert persisted_notification.created_at == now
+    assert persisted_notification.sent_at > now
 
 
 def test_should_not_send_sms_if_db_peristance_failed(sample_template, mocker):
@@ -186,13 +238,15 @@ def test_should_not_send_sms_if_db_peristance_failed(sample_template, mocker):
     mocker.patch('app.encryption.decrypt', return_value=notification)
     mocker.patch('app.firetext_client.send_sms')
     mocker.patch('app.db.session.add', side_effect=SQLAlchemyError())
+    now = datetime.utcnow()
 
     notification_id = uuid.uuid4()
 
     send_sms(
         sample_template.service_id,
         notification_id,
-        "encrypted-in-reality")
+        "encrypted-in-reality",
+        now)
 
     firetext_client.send_sms.assert_not_called()
     with pytest.raises(NoResultFound) as e:
@@ -208,6 +262,7 @@ def test_should_not_send_email_if_db_peristance_failed(sample_email_template, mo
     mocker.patch('app.encryption.decrypt', return_value=notification)
     mocker.patch('app.aws_ses_client.send_email')
     mocker.patch('app.db.session.add', side_effect=SQLAlchemyError())
+    now = datetime.utcnow()
 
     notification_id = uuid.uuid4()
 
@@ -216,7 +271,8 @@ def test_should_not_send_email_if_db_peristance_failed(sample_email_template, mo
         notification_id,
         'subject',
         'email_from',
-        "encrypted-in-reality")
+        "encrypted-in-reality",
+        now)
 
     aws_ses_client.send_email.assert_not_called()
     with pytest.raises(NoResultFound) as e:

tests/app/conftest.py

@@ -1,5 +1,5 @@
 import pytest
-
+from datetime import datetime
 from app import email_safe
 from app.models import (User, Service, Template, ApiKey, Job, Notification)
 from app.dao.users_dao import (save_model_user, create_user_code, create_secret_code)
@@ -7,7 +7,7 @@ from app.dao.services_dao import dao_create_service
 from app.dao.templates_dao import dao_create_template
 from app.dao.api_key_dao import save_model_api_key
 from app.dao.jobs_dao import dao_create_job
-from app.dao.notifications_dao import save_notification
+from app.dao.notifications_dao import dao_create_notification
 import uuid
 
 
@@ -208,6 +208,35 @@ def sample_job(notify_db,
     return job
 
 
+@pytest.fixture(scope='function')
+def sample_email_job(notify_db,
+                     notify_db_session,
+                     service=None,
+                     template=None):
+    if service is None:
+        service = sample_service(notify_db, notify_db_session)
+    if template is None:
+        template = sample_email_template(
+            notify_db,
+            notify_db_session,
+            service=service)
+    job_id = uuid.uuid4()
+    bucket_name = 'service-{}-notify'.format(service.id)
+    file_name = '{}.csv'.format(job_id)
+    data = {
+        'id': uuid.uuid4(),
+        'service_id': service.id,
+        'template_id': template.id,
+        'bucket_name': bucket_name,
+        'file_name': file_name,
+        'original_file_name': 'some.csv',
+        'notification_count': 1
+    }
+    job = Job(**data)
+    dao_create_job(job)
+    return job
+
+
 @pytest.fixture(scope='function')
 def sample_admin_service_id(notify_db, notify_db_session):
     admin_user = sample_user(notify_db, notify_db_session, email="notify_admin@digital.cabinet-office.gov.uk")
@@ -248,10 +277,11 @@ def sample_notification(notify_db,
         'to': to,
         'job': job,
         'service': service,
-        'template': template
+        'template': template,
+        'created_at': datetime.utcnow()
     }
     notification = Notification(**data)
-    save_notification(notification)
+    dao_create_notification(notification)
     return notification
 
 

tests/app/dao/test_notification_dao.py

@@ -1,7 +1,8 @@
 from app.models import Notification
-
+from datetime import datetime
 from app.dao.notifications_dao import (
-    save_notification,
+    dao_create_notification,
+    dao_update_notification,
     get_notification,
     get_notification_for_job,
     get_notifications_for_job
@@ -11,16 +12,16 @@ from app.dao.notifications_dao import (
 def test_save_notification(sample_template, sample_job):
 
     assert Notification.query.count() == 0
-    to = '+44709123456'
     data = {
-        'to': to,
+        'to': '+44709123456',
         'job': sample_job,
         'service': sample_template.service,
-        'template': sample_template
+        'template': sample_template,
+        'created_at': datetime.utcnow()
     }
 
     notification = Notification(**data)
-    save_notification(notification)
+    dao_create_notification(notification)
 
     assert Notification.query.count() == 1
     notification_from_db = Notification.query.all()[0]
@@ -29,28 +30,30 @@ def test_save_notification(sample_template, sample_job):
     assert data['job'] == notification_from_db.job
     assert data['service'] == notification_from_db.service
     assert data['template'] == notification_from_db.template
+    assert data['created_at'] == notification_from_db.created_at
     assert 'sent' == notification_from_db.status
 
 
-def test_get_notification(notify_db, notify_db_session, sample_notification):
+def test_get_notification(sample_notification):
     notifcation_from_db = get_notification(
         sample_notification.service.id,
         sample_notification.id)
     assert sample_notification == notifcation_from_db
 
 
-def test_save_notification_no_job_id(notify_db, notify_db_session, sample_template):
+def test_save_notification_no_job_id(sample_template):
 
     assert Notification.query.count() == 0
     to = '+44709123456'
     data = {
         'to': to,
         'service': sample_template.service,
-        'template': sample_template
+        'template': sample_template,
+        'created_at': datetime.utcnow()
     }
 
     notification = Notification(**data)
-    save_notification(notification)
+    dao_create_notification(notification)
 
     assert Notification.query.count() == 1
     notification_from_db = Notification.query.all()[0]
@@ -61,7 +64,7 @@ def test_save_notification_no_job_id(notify_db, notify_db_session, sample_templa
     assert 'sent' == notification_from_db.status
 
 
-def test_get_notification_for_job(notify_db, notify_db_session, sample_notification):
+def test_get_notification_for_job(sample_notification):
     notifcation_from_db = get_notification_for_job(
         sample_notification.service.id,
         sample_notification.job_id,
@@ -83,17 +86,9 @@ def test_get_all_notifications_for_job(notify_db, notify_db_session, sample_job)
     assert len(notifcations_from_db) == 5
 
 
-def test_update_notification(notify_db, notify_db_session, sample_notification):
+def test_update_notification(sample_notification):
     assert sample_notification.status == 'sent'
-
-    update_dict = {
-        'id': str(sample_notification.id),
-        'service': str(sample_notification.service.id),
-        'template': sample_notification.template.id,
-        'job': str(sample_notification.job.id),
-        'status': 'failed'
-    }
-
-    save_notification(sample_notification, update_dict=update_dict)
+    sample_notification.status = 'failed'
+    dao_update_notification(sample_notification)
     notification_from_db = Notification.query.get(sample_notification.id)
     assert notification_from_db.status == 'failed'

tests/app/test_csv.py

@@ -1,15 +1,28 @@
-from app.csv import get_mobile_numbers_from_csv
+from app.csv import get_recipient_from_csv
 from tests.app import load_example_csv
 
 
 def test_should_process_single_phone_number_file():
     sms_file = load_example_csv('sms')
-    len(get_mobile_numbers_from_csv(sms_file)) == 1
-    assert get_mobile_numbers_from_csv(sms_file)[0] == '+441234123123'
+    len(get_recipient_from_csv(sms_file)) == 1
+    assert get_recipient_from_csv(sms_file)[0] == '+441234123123'
 
 
 def test_should_process_multple_phone_number_file_in_order():
     sms_file = load_example_csv('multiple_sms')
-    len(get_mobile_numbers_from_csv(sms_file)) == 10
-    assert get_mobile_numbers_from_csv(sms_file)[0] == '+441234123121'
-    assert get_mobile_numbers_from_csv(sms_file)[9] == '+441234123120'
+    len(get_recipient_from_csv(sms_file)) == 10
+    assert get_recipient_from_csv(sms_file)[0] == '+441234123121'
+    assert get_recipient_from_csv(sms_file)[9] == '+441234123120'
+
+
+def test_should_process_single_email_file():
+    sms_file = load_example_csv('email')
+    len(get_recipient_from_csv(sms_file)) == 1
+    assert get_recipient_from_csv(sms_file)[0] == 'test@test.com'
+
+
+def test_should_process_multple_email_file_in_order():
+    sms_file = load_example_csv('multiple_email')
+    len(get_recipient_from_csv(sms_file)) == 10
+    assert get_recipient_from_csv(sms_file)[0] == 'test1@test.com'
+    assert get_recipient_from_csv(sms_file)[9] == 'test0@test.com'