Update EmailBranding.name to be not null and unique.

Needed to update old migration scripts so that the email_branding name is not null when creating the test dbs.
This should no affect the migrations elsewhere.

app/email_branding/email_branding_schema.py

@@ -6,13 +6,13 @@ post_create_email_branding_schema = {
     "type": "object",
     "properties": {
         "colour": {"type": ["string", "null"]},
-        "name": {"type": ["string", "null"]},
+        "name": {"type": "string"},
         "text": {"type": ["string", "null"]},
         "logo": {"type": ["string", "null"]},
         "domain": {"type": ["string", "null"]},
         "brand_type": {"enum": BRANDING_TYPES},
     },
-    "required": []
+    "required": ["name"]
 }
 
 post_update_email_branding_schema = {

app/models.py

@@ -219,7 +219,7 @@ class EmailBranding(db.Model):
     id = db.Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
     colour = db.Column(db.String(7), nullable=True)
     logo = db.Column(db.String(255), nullable=True)
-    name = db.Column(db.String(255), nullable=True)
+    name = db.Column(db.String(255), unique=True, nullable=False)
     text = db.Column(db.String(255), nullable=True)
     domain = db.Column(db.Text, unique=True, nullable=True)
     brand_type = db.Column(

migrations/versions/0093_data_gov_uk.py

@@ -22,7 +22,7 @@ def upgrade():
         '{}',
         '',
         'data_gov_uk_x2.png',
-        ''
+        'data gov.uk'
     )""".format(DATA_GOV_UK_ID))
 
 

migrations/versions/0099_tfl_dar.py

@@ -22,7 +22,7 @@ def upgrade():
         '{}',
         '',
         'tfl_dar_x2.png',
-        ''
+        'tfl'
     )""".format(TFL_DAR_ID))
 
 

migrations/versions/0101_een_logo.py

@@ -20,7 +20,7 @@ def upgrade():
         '{}',
         '',
         'een_x2.png',
-        ''
+        'een'
     )""".format(ENTERPRISE_EUROPE_NETWORK_ID))
 
 

migrations/versions/0286_add_unique_email_name.py

@@ -0,0 +1,26 @@
+"""
+
+Revision ID: 0286_add_unique_email_name
+Revises: 0285_default_org_branding
+Create Date: 2019-04-09 13:01:13.892249
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+revision = '0286_add_unique_email_name'
+down_revision = '0285_default_org_branding'
+
+
+def upgrade():
+    op.alter_column('email_branding', 'name',
+                    existing_type=sa.VARCHAR(length=255),
+                    nullable=False)
+    op.create_unique_constraint('uq_email_branding_name', 'email_branding', ['name'])
+
+
+def downgrade():
+    op.drop_constraint('uq_email_branding_name', 'email_branding', type_='unique')
+    op.alter_column('email_branding', 'name',
+                    existing_type=sa.VARCHAR(length=255),
+                    nullable=True)

tests/app/email_branding/test_rest.py

@@ -92,9 +92,10 @@ def test_post_create_email_branding_without_logo_is_ok(admin_request, notify_db_
     assert not response['data']['logo']
 
 
-def test_post_create_email_branding_without_name_or_colour_is_valid(admin_request, notify_db_session):
+def test_post_create_email_branding_colour_is_valid(admin_request, notify_db_session):
     data = {
-        'logo': 'images/text_x2.png'
+        'logo': 'images/text_x2.png',
+        'name': 'test branding'
     }
     response = admin_request.post(
         'email_branding.create_email_branding',
@@ -103,15 +104,16 @@ def test_post_create_email_branding_without_name_or_colour_is_valid(admin_reques
     )
 
     assert response['data']['logo'] == data['logo']
-    assert response['data']['name'] is None
+    assert response['data']['name'] == 'test branding'
     assert response['data']['colour'] is None
-    assert response['data']['text'] is None
+    assert response['data']['text'] == 'test branding'
 
 
 def test_post_create_email_branding_with_text(admin_request, notify_db_session):
     data = {
         'text': 'text for brand',
-        'logo': 'images/text_x2.png'
+        'logo': 'images/text_x2.png',
+        'name': 'test branding'
     }
     response = admin_request.post(
         'email_branding.create_email_branding',
@@ -120,7 +122,7 @@ def test_post_create_email_branding_with_text(admin_request, notify_db_session):
     )
 
     assert response['data']['logo'] == data['logo']
-    assert response['data']['name'] is None
+    assert response['data']['name'] == 'test branding'
     assert response['data']['colour'] is None
     assert response['data']['text'] == 'text for brand'
 
@@ -161,6 +163,20 @@ def test_post_create_email_branding_with_text_as_none_and_name(admin_request, no
     assert response['data']['text'] is None
 
 
+def test_post_create_email_branding_returns_400_when_name_is_missing(admin_request, notify_db_session):
+    data = {
+        'text': 'some text',
+        'logo': 'images/text_x2.png'
+    }
+    response = admin_request.post(
+        'email_branding.create_email_branding',
+        _data=data,
+        _expected_status=400
+    )
+
+    assert response['errors'][0]['message'] == 'name is a required property'
+
+
 @pytest.mark.parametrize('data_update', [
     ({'name': 'test email_branding 1'}),
     ({'logo': 'images/text_x3.png', 'colour': '#ffffff'}),
@@ -260,11 +276,11 @@ def test_update_email_branding_reject_invalid_brand_type(admin_request, notify_d
 
 
 def test_400_for_duplicate_domain(admin_request, notify_db_session):
-    branding_1 = create_email_branding()
-    branding_2 = create_email_branding()
+    branding_1 = create_email_branding(name='first brand')
+    branding_2 = create_email_branding(name='second brand')
     admin_request.post(
         'email_branding.update_email_branding',
-        _data={'domain': 'example.com'},
+        _data={'domain': 'example.com', },
         email_branding_id=branding_1.id,
     )
 
@@ -279,7 +295,7 @@ def test_400_for_duplicate_domain(admin_request, notify_db_session):
 
     response = admin_request.post(
         'email_branding.create_email_branding',
-        _data={'domain': 'example.com'},
+        _data={'domain': 'example.com', 'name': 'another brand'},
         _expected_status=400,
     )
     assert response['result'] == 'error'