Add test to assert that a not null FK on a new table is accepted

tests/test_project_fixtures/test_project_create_table_with_not_null_column/test_app/migrations/0002_b_foreign_keys.py

@@ -0,0 +1,22 @@
+# Generated by Django 2.0.1 on 2018-05-07 18:35
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('test_app', '0001_create_table_with_not_null_field'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='B',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('not_null_fk', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='nn_b', to='test_app.A')),
+                ('null_fk', models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, related_name='b', to='test_app.A')),
+            ],
+        ),
+    ]

tests/test_project_fixtures/test_project_create_table_with_not_null_column/test_app/models.py

@@ -2,3 +2,8 @@ from django.db import models
 
 class A(models.Model):
 	not_null_field = models.IntegerField(null=False)
+
+
+class B(models.Model):
+	not_null_fk = models.ForeignKey(to=A, null=False, on_delete=models.CASCADE, related_name='nn_b')
+	null_fk = models.ForeignKey(to=A, null=True, on_delete=models.CASCADE, related_name='b')