fix bugs

tests/test_api.py

@@ -203,7 +203,6 @@ class TestDisplayAPI:
         resp = client.get("/api/display/status")
         assert resp.status_code == 200
         data = resp.get_json()
-        assert "simulate" in data
         assert "resolution" in data
         assert "pending_trigger" in data
 
@@ -318,12 +317,14 @@ class TestCORSAndErrors:
         data = resp.get_json()
         assert "error" in data
 
-    def test_url_encoded_form_not_accepted(self, client):
+    def test_url_encoded_form_accepted(self, client):
         resp = client.put(
             "/api/config/display/saturation",
             data={"value": "0.5"},
         )
-        assert resp.status_code == 400 or resp.status_code == 200
+        assert resp.status_code == 200
+        resp = client.get("/api/config/display")
+        assert resp.get_json()["saturation"] == 0.5
 
 
 class TestGallery: