1 files changed, 31 insertions, 0 deletions
diff --git a/tests/regressiontests/admin_validation/models.py b/tests/regressiontests/admin_validation/models.py
index b50764844e..d927574538 100644
--- a/tests/regressiontests/admin_validation/models.py
+++ b/tests/regressiontests/admin_validation/models.py
@@ -72,6 +72,37 @@ Traceback (most recent call last):
     ...
 ImproperlyConfigured: 'InvalidFields.fields' refers to field 'spam' that is missing from the form.
 
+# Tests for basic validation of 'exclude' option values (#12689)
+
+>>> class ExcludedFields1(admin.ModelAdmin):
+...     exclude = ('foo')
+
+>>> validate(ExcludedFields1, Book)
+Traceback (most recent call last):
+    ...
+ImproperlyConfigured: 'ExcludedFields1.exclude' must be a list or tuple.
+
+>>> class ExcludedFields2(admin.ModelAdmin):
+...     exclude = ('name', 'name')
+
+>>> validate(ExcludedFields2, Book)
+Traceback (most recent call last):
+    ...
+ImproperlyConfigured: There are duplicate field(s) in ExcludedFields2.exclude
+
+>>> class ExcludedFieldsInline(admin.TabularInline):
+...     model = Song
+...     exclude = ('foo')
+
+>>> class ExcludedFieldsAlbumAdmin(admin.ModelAdmin):
+...     model = Album
+...     inlines = [ExcludedFieldsInline]
+
+>>> validate(ExcludedFieldsAlbumAdmin, Album)
+Traceback (most recent call last):
+    ...
+ImproperlyConfigured: 'ExcludedFieldsInline.exclude' must be a list or tuple.
+
 # Regression test for #9932 - exclude in InlineModelAdmin
 # should not contain the ForeignKey field used in ModelAdmin.model