♻️(tests) refacto dimail tests with fixtures

test_api_mailboxes_create exceeded 1000 lines. By using fixtures, we can
at least factorize dimail response when token is ok or mailbox_data sent
to our API when creating a mailbox.

src/backend/mailbox_manager/tests/conftest.py

@@ -0,0 +1,37 @@
+"""
+Fixtures for mailbox manager tests
+"""
+
+import re
+
+import pytest
+import responses
+from rest_framework import status
+
+from mailbox_manager import factories
+from mailbox_manager.tests.fixtures.dimail import TOKEN_OK
+
+
+## DIMAIL RESPONSES
+@pytest.fixture(name="dimail_token_ok")
+def fixture_dimail_token_ok():
+    """Mock dimail response when /token/ endpoit is given valid credentials."""
+    responses.add(
+        responses.GET,
+        re.compile(r".*/token/"),
+        body=TOKEN_OK,
+        status=status.HTTP_200_OK,
+        content_type="application/json",
+    )
+
+
+@pytest.fixture(name="mailbox_data")
+def fixture_mailbox_data():
+    """Provides valid mailbox data for tests."""
+    example = factories.MailboxFactory.build()
+    return {
+        "first_name": example.first_name,
+        "last_name": example.last_name,
+        "local_part": example.local_part,
+        "secondary_email": example.secondary_email,
+    }

src/backend/mailbox_manager/tests/fixtures/dimail.py

@@ -3,9 +3,8 @@
 
 import json
 
+
 ## USERS
-
-
 def response_user_created(user_sub):
     """mimic dimail response upon successful user creation."""
     return json.dumps(
@@ -19,7 +18,6 @@ def response_user_created(user_sub):
 
 
 ## DOMAINS
-
 CHECK_DOMAIN_BROKEN = {
     "name": "example.fr",
     "state": "broken",
@@ -290,12 +288,10 @@ DOMAIN_SPEC = [
 
 
 ## TOKEN
-
 TOKEN_OK = json.dumps({"access_token": "token", "token_type": "bearer"})
 
+
 ## ALLOWS
-
-
 def response_allows_created(user_name, domain_name):
     """mimic dimail response upon successful allows creation.
     Dimail expects a name but our names are ProConnect's uuids."""
@@ -303,8 +299,6 @@ def response_allows_created(user_name, domain_name):
 
 
 ## MAILBOXES
-
-
 def response_mailbox_created(email_address):
     """mimic dimail response upon successful mailbox creation."""
     return json.dumps({"email": email_address, "password": "password"})