From 204263441e8f1dc11dff1e407233c674b4e48184 Mon Sep 17 00:00:00 2001
From: Antoine Auger <antoineauger@users.noreply.github.com>
Date: Mon, 27 Mar 2023 12:09:03 +0200
Subject: [PATCH] test(m2m-fields): add tests that should pass

---
 simple_history/tests/admin.py             |  2 ++
 simple_history/tests/models.py            | 22 ++++++++++++++++++++++
 simple_history/tests/tests/test_models.py |  7 +++++++
 3 files changed, 31 insertions(+)

diff --git a/simple_history/tests/admin.py b/simple_history/tests/admin.py
index 24cf5f7ac..a625edcde 100644
--- a/simple_history/tests/admin.py
+++ b/simple_history/tests/admin.py
@@ -10,6 +10,7 @@
     Document,
     Employee,
     FileModel,
+    Group,
     Paper,
     Person,
     Planet,
@@ -43,6 +44,7 @@ def test_method(self, obj):
     history_list_display = ["title", "test_method"]
 
 
+admin.site.register(Group, SimpleHistoryAdmin)
 admin.site.register(Poll, SimpleHistoryAdmin)
 admin.site.register(Choice, ChoiceAdmin)
 admin.site.register(Person, PersonAdmin)
diff --git a/simple_history/tests/models.py b/simple_history/tests/models.py
index 99c6a2f87..6f1375e12 100644
--- a/simple_history/tests/models.py
+++ b/simple_history/tests/models.py
@@ -145,6 +145,28 @@ class PollWithManyToMany(models.Model):
     history = HistoricalRecords(m2m_fields=[places])
 
 
+class Membership(models.Model):
+    group = models.ForeignKey("Group", on_delete=models.CASCADE)
+    person = models.ForeignKey("Person", on_delete=models.CASCADE)
+    inviter = models.ForeignKey(
+        "Person",
+        on_delete=models.CASCADE,
+        related_name="membership_invites",
+    )
+    invite_reason = models.CharField(max_length=64)
+
+
+class Group(models.Model):
+    name = models.CharField(max_length=128)
+    members = models.ManyToManyField(
+        "Person",
+        through="tests.Membership",
+        through_fields=("group", "person"),
+    )
+
+    history = HistoricalRecords(m2m_fields=[members])
+
+
 class PollWithManyToManyCustomHistoryID(models.Model):
     question = models.CharField(max_length=200)
     pub_date = models.DateTimeField("date published")
diff --git a/simple_history/tests/tests/test_models.py b/simple_history/tests/tests/test_models.py
index 484df73f9..d5228100f 100644
--- a/simple_history/tests/tests/test_models.py
+++ b/simple_history/tests/tests/test_models.py
@@ -101,6 +101,7 @@
     PollWithHistoricalIPAddress,
     PollWithManyToMany,
     PollWithManyToManyCustomHistoryID,
+    Group,
     PollWithManyToManyWithIPAddress,
     PollWithNonEditableField,
     PollWithSelfManyToMany,
@@ -1939,6 +1940,12 @@ def setUp(self):
         self.poll = self.model.objects.create(question="what's up?", pub_date=today)
 
 
+class GroupWithManyToManyThroughFieldsTest(TestCase):
+    def setUp(self):
+        self.model = Group
+        self.history_model = self.model.history.model
+
+
 class ManyToManyTest(TestCase):
     def setUp(self):
         self.model = PollWithManyToMany