API: File upload infrastructure

src/tests/api/test_upload.py

@@ -0,0 +1,31 @@
+import pytest
+from django.core.files.base import ContentFile
+
+
+@pytest.mark.django_db
+def test_upload_file(token_client):
+    r = token_client.post(
+        '/api/v1/upload',
+        data={
+            'media_type': 'application/pdf',
+            'file': ContentFile('file.pdf', 'invalid pdf content')
+        },
+        format='upload',
+        HTTP_CONTENT_DISPOSITION='attachment; filename="file.pdf"',
+    )
+    assert r.status_code == 201
+    assert r.data['id'].startswith('file:')
+
+
+@pytest.mark.django_db
+def test_upload_file_extension_mismatch(token_client):
+    r = token_client.post(
+        '/api/v1/upload',
+        data={
+            'media_type': 'application/pdf',
+            'file': ContentFile('file.png', 'invalid pdf content')
+        },
+        format='upload',
+        HTTP_CONTENT_DISPOSITION='attachment; filename="file.png"',
+    )
+    assert r.status_code == 400