1 files changed, 132 insertions, 0 deletions
diff --git a/api/tests/test_validators.py b/api/tests/test_validators.py
new file mode 100644
index 00000000..51f02412
--- /dev/null
+++ b/api/tests/test_validators.py
@@ -0,0 +1,132 @@
+from django.core.exceptions import ValidationError
+from django.test import TestCase
+
+from ..validators import validate_tag_embed
+
+
+REQUIRED_KEYS = (
+    'content', 'fields', 'image', 'title', 'video'
+)
+
+
+class TagEmbedValidatorTests(TestCase):
+    def test_rejects_non_mapping(self):
+        with self.assertRaises(ValidationError):
+            validate_tag_embed('non-empty non-mapping')
+
+    def test_rejects_missing_required_keys(self):
+        with self.assertRaises(ValidationError):
+            validate_tag_embed({
+                'unknown': "key"
+            })
+
+    def test_rejects_empty_required_key(self):
+        with self.assertRaises(ValidationError):
+            validate_tag_embed({
+                'title': ''
+            })
+
+    def test_rejects_list_as_embed(self):
+        with self.assertRaises(ValidationError):
+            validate_tag_embed([])
+
+    def test_rejects_required_keys_and_unknown_keys(self):
+        with self.assertRaises(ValidationError):
+            validate_tag_embed({
+                'title': "the duck walked up to the lemonade stand",
+                'and': "he said to the man running the stand"
+            })
+
+    def test_rejects_too_long_title(self):
+        with self.assertRaises(ValidationError):
+            validate_tag_embed({
+                'title': 'a' * 257
+            })
+
+    def test_rejects_too_many_fields(self):
+        with self.assertRaises(ValidationError):
+            validate_tag_embed({
+                'fields': [{} for _ in range(26)]
+            })
+
+    def test_rejects_too_long_description(self):
+        with self.assertRaises(ValidationError):
+            validate_tag_embed({
+                'description': 'd' * 2049
+            })
+
+    def test_rejects_fields_as_list_of_non_mappings(self):
+        with self.assertRaises(ValidationError):
+            validate_tag_embed({
+                'fields': ['abc']
+            })
+
+    def test_rejects_fields_with_unknown_fields(self):
+        with self.assertRaises(ValidationError):
+            validate_tag_embed({
+                'fields': [
+                    {
+                        'what': "is this field"
+                    }
+                ]
+            })
+
+    def test_rejects_fields_with_too_long_name(self):
+        with self.assertRaises(ValidationError):
+            validate_tag_embed({
+                'fields': [
+                    {
+                        'name': "a" * 257
+                    }
+                ]
+            })
+
+    def test_rejects_footer_as_non_mapping(self):
+        with self.assertRaises(ValidationError):
+            validate_tag_embed({
+                'title': "whatever",
+                'footer': []
+            })
+
+    def test_rejects_footer_with_unknown_fields(self):
+        with self.assertRaises(ValidationError):
+            validate_tag_embed({
+                'title': "whatever",
+                'footer': {
+                    'duck': "quack"
+                }
+            })
+
+    def test_rejects_footer_with_empty_text(self):
+        with self.assertRaises(ValidationError):
+            validate_tag_embed({
+                'title': "whatever",
+                'footer': {
+                    'text': ""
+                }
+            })
+
+    def test_rejects_author_as_non_mapping(self):
+        with self.assertRaises(ValidationError):
+            validate_tag_embed({
+                'title': "whatever",
+                'author': []
+            })
+
+    def test_rejects_author_with_unknown_field(self):
+        with self.assertRaises(ValidationError):
+            validate_tag_embed({
+                'title': "whatever",
+                'author': {
+                    'field': "that is unknown"
+                }
+            })
+
+    def test_rejects_author_with_empty_name(self):
+        with self.assertRaises(ValidationError):
+            validate_tag_embed({
+                'title': "whatever",
+                'author': {
+                    'name': ""
+                }
+            })