From dc23fdeff382dcbf2132a0d644ec1349f60fc113 Mon Sep 17 00:00:00 2001
From: Tom Irgang <thomas@irgang.eu>
Date: Thu, 31 Aug 2023 18:44:17 +0200
Subject: [PATCH] tests for email interface models

---
 repapp/email_interface/models.py |   6 +-
 repapp/email_interface/tests.py  | 236 ++++++++++++++++++++++++++++++-
 2 files changed, 239 insertions(+), 3 deletions(-)

diff --git a/repapp/email_interface/models.py b/repapp/email_interface/models.py
index 20df47c..c613889 100644
--- a/repapp/email_interface/models.py
+++ b/repapp/email_interface/models.py
@@ -105,7 +105,8 @@ class Attachment(models.Model):
 
 
 @receiver(models.signals.post_delete, sender=Attachment)
-def auto_delete_file_on_delete(sender, instance, **kwargs):
+def auto_delete_file_on_delete(sender, instance, **kwargs):  # pragma: no cover
+    # manual test was ok, no unit test needed
     """
     Deletes file from filesystem when corresponding Attachment is deleted.
     """
@@ -115,7 +116,8 @@ def auto_delete_file_on_delete(sender, instance, **kwargs):
 
 
 @receiver(models.signals.pre_save, sender=Attachment)
-def auto_delete_file_on_change(sender, instance, **kwargs):
+def auto_delete_file_on_change(sender, instance, **kwargs):  # pragma: no cover
+    # manual test was ok, no unit test needed
     """
     Deletes old file from filesystem when corresponding Attachment object is updated with new file.
     """
diff --git a/repapp/email_interface/tests.py b/repapp/email_interface/tests.py
index a9644c8..0aeed71 100644
--- a/repapp/email_interface/tests.py
+++ b/repapp/email_interface/tests.py
@@ -1,8 +1,9 @@
 import logging
 from django.test import TestCase
+from django.conf import settings
 from django.contrib.auth import get_user_model
-from django import forms
 from .forms import MessageForm
+from .models import Message, Attachment
 
 
 logger = logging.getLogger(__name__)
@@ -89,3 +90,236 @@ class MessageFormTestCase(TestCase):
 
         assert not form.is_valid()
         assert form.has_error('mail_text')
+
+
+class MessageModelTestCase(TestCase):
+    """
+    Tests all logic contained in the Message model.
+    """
+
+    def setUp(self):
+        john = get_user_model().objects.create_user(
+            "john",
+            "lennon@thebeatles.com",
+            "johnpassword")
+        john.save()
+        self.john = john
+
+        jane = get_user_model().objects.create_user(
+            "jane",
+            "doe@example.com",
+            "janepassword")
+        jane.save()
+        self.jane = jane
+
+        m1 = Message(
+            summary='summary 1',
+            html_content='<p>mail 1 HTML content</p>',
+            text_content='mail 1 text content',
+            sender=john,
+            receiver=jane,
+            sent=True,
+            answered=True,
+        )
+        m1.save()
+        self.m1 = m1
+
+        m2 = Message(
+            summary='summary 2',
+            html_content='<p>mail 2 HTML content</p>',
+            text_content='mail 2 text content',
+            sender=jane,
+            receiver=john,
+            sent=True,
+            answered=False,
+            reply_to=m1,
+        )
+        m2.save()
+        self.m2 = m2
+
+        m3 = Message(
+            summary='summary 3',
+            html_content='<p>mail 3 HTML content</p>',
+            text_content='mail 3 text content',
+            sender=jane,
+            receiver=john,
+            sent=True,
+            answered=False,
+            reply_to=m1,
+        )
+        m3.save()
+        self.m3 = m3
+
+        a1 = Attachment(
+            owner=john,
+            name='johns_file.txt',
+            mime_type='text/plain',
+            file='uploads/johns_file.txt',
+            message=m1,
+        )
+        a1.save()
+        self.a1 = a1
+
+        a2 = Attachment(
+            owner=jane,
+            name='janes_image.jpg',
+            mime_type='image/jpeg',
+            file='media/janes_image.jpg',
+            message=m3,
+        )
+        a2.save()
+        self.a2 = a2
+
+        a3 = Attachment(
+            owner=john,
+            name='johns_image.jpg',
+            mime_type='image/png',
+            file='media/johns_image.jpg',
+            message=m1,
+        )
+        a3.save()
+        self.a3 = a3
+
+    def test_str(self):
+        assert self.m1.summary in str(self.m1)
+        assert str(self.m1.receiver) in str(self.m1)
+
+    def test_attachments(self):
+        assert len(self.m1.attachments()) == 2
+        assert self.m1.attachments()[0].pk == self.a1.pk
+        assert self.m1.attachments()[1].pk == self.a3.pk
+        assert len(self.m2.attachments()) == 0
+        assert len(self.m3.attachments()) == 1
+        assert self.m3.attachments()[0].pk == self.a2.pk
+
+    def test_thread(self):
+        assert len(self.m1.thread()) == 1
+        assert self.m1.thread()[0].pk == self.m1.pk
+        assert len(self.m2.thread()) == 2
+        assert self.m2.thread()[0].pk == self.m1.pk
+        assert self.m2.thread()[1].pk == self.m2.pk
+        assert len(self.m3.thread()) == 2
+        assert self.m3.thread()[0].pk == self.m1.pk
+        assert self.m3.thread()[1].pk == self.m3.pk
+
+    def test_answers(self):
+        assert len(self.m1.answers()) == 2
+        assert self.m1.answers()[0].pk == self.m2.pk
+        assert self.m1.answers()[1].pk == self.m3.pk
+        assert len(self.m2.answers()) == 0
+        assert len(self.m3.answers()) == 0
+
+    def test_siblings(self):
+        assert len(self.m1.siblings()) == 0
+        assert len(self.m2.siblings()) == 1
+        assert self.m2.siblings()[0].pk == self.m3.pk
+        assert len(self.m3.siblings()) == 1
+        assert self.m3.siblings()[0].pk == self.m2.pk
+
+    def test_to_user(self):
+        assert len(Message.to_user(self.john)) == 2
+        assert Message.to_user(self.john)[0].pk == self.m2.pk
+        assert Message.to_user(self.john)[1].pk == self.m3.pk
+
+        assert len(Message.to_user(self.jane)) == 1
+        assert Message.to_user(self.jane)[0].pk == self.m1.pk
+
+    def test_from_user(self):
+        assert len(Message.from_user(self.john)) == 1
+        assert Message.from_user(self.john)[0].pk == self.m1.pk
+
+        assert len(Message.from_user(self.jane)) == 2
+        assert Message.from_user(self.jane)[0].pk == self.m2.pk
+        assert Message.from_user(self.jane)[1].pk == self.m3.pk
+
+
+class AttachmentModelTestCase(TestCase):
+    """
+    Tests all logic contained in the Message model.
+    """
+
+    def setUp(self):
+        john = get_user_model().objects.create_user(
+            "john",
+            "lennon@thebeatles.com",
+            "johnpassword")
+        john.save()
+        self.john = john
+
+        jane = get_user_model().objects.create_user(
+            "jane",
+            "doe@example.com",
+            "janepassword")
+        jane.save()
+        self.jane = jane
+
+        m1 = Message(
+            summary='summary 1',
+            html_content='<p>mail 1 HTML content</p>',
+            text_content='mail 1 text content',
+            sender=john,
+            receiver=jane,
+            sent=True,
+            answered=True,
+        )
+        m1.save()
+        self.m1 = m1
+
+        m3 = Message(
+            summary='summary 3',
+            html_content='<p>mail 3 HTML content</p>',
+            text_content='mail 3 text content',
+            sender=jane,
+            receiver=john,
+            sent=True,
+            answered=False,
+            reply_to=m1,
+        )
+        m3.save()
+        self.m3 = m3
+
+        a1 = Attachment(
+            owner=john,
+            name='johns_file.txt',
+            mime_type='text/plain',
+            file='uploads/johns_file.txt',
+            message=m1,
+        )
+        a1.save()
+        self.a1 = a1
+
+        a2 = Attachment(
+            owner=jane,
+            name='janes_image.jpg',
+            mime_type='image/jpeg',
+            file='media/janes_image.jpg',
+            message=m3,
+        )
+        a2.save()
+        self.a2 = a2
+
+        a3 = Attachment(
+            owner=john,
+            name='johns_image.jpg',
+            mime_type='image/png',
+            file='media/johns_image.jpg',
+            message=m1,
+        )
+        a3.save()
+        self.a3 = a3
+
+    def test_str(self):
+        assert str(self.a1.file) in str(self.a1)
+        assert str(self.m1) in str(self.a1)
+
+    def test_get_absolute_url(self):
+        assert settings.MEDIA_URL in self.a1.get_absolute_url()
+        assert str(self.a1.file) in self.a1.get_absolute_url()
+
+    def test_of_user(self):
+        assert len(Attachment.of_user(self.john)) == 2
+        assert Attachment.of_user(self.john)[0].pk == self.a1.pk
+        assert Attachment.of_user(self.john)[1].pk == self.a3.pk
+
+        assert len(Attachment.of_user(self.jane)) == 1
+        assert Attachment.of_user(self.jane)[0].pk == self.a2.pk