test: restructure tests (#2444)

unit, api, wallets
* only run test-api for migration

tests/api/test_admin_api.py

@@ -0,0 +1,40 @@
+import pytest
+
+from lnbits.settings import settings
+
+
+@pytest.mark.asyncio
+async def test_admin_get_settings_permission_denied(client, from_user):
+    response = await client.get(f"/admin/api/v1/settings?usr={from_user.id}")
+    assert response.status_code == 401
+
+
+@pytest.mark.asyncio
+async def test_admin_get_settings(client, superuser):
+    response = await client.get(f"/admin/api/v1/settings?usr={superuser.id}")
+    assert response.status_code == 200
+    result = response.json()
+    assert "super_user" not in result
+
+
+@pytest.mark.asyncio
+async def test_admin_update_settings(client, superuser):
+    new_site_title = "UPDATED SITETITLE"
+    response = await client.put(
+        f"/admin/api/v1/settings?usr={superuser.id}",
+        json={"lnbits_site_title": new_site_title},
+    )
+    assert response.status_code == 200
+    result = response.json()
+    assert "status" in result
+    assert result.get("status") == "Success"
+    assert settings.lnbits_site_title == new_site_title
+
+
+@pytest.mark.asyncio
+async def test_admin_update_noneditable_settings(client, superuser):
+    response = await client.put(
+        f"/admin/api/v1/settings?usr={superuser.id}",
+        json={"super_user": "UPDATED"},
+    )
+    assert response.status_code == 400