From 3df78043c05ca7268e7e9ade8f2ce988f6e6ae0c Mon Sep 17 00:00:00 2001
From: karwosts <32912880+karwosts@users.noreply.github.com>
Date: Wed, 31 Jul 2024 07:13:05 -0700
Subject: [PATCH] Add enable_millisecond to duration selector (#122821)

* Add enable_milliseconds to duration selector.

* One more test
---
 homeassistant/helpers/selector.py | 3 +++
 tests/helpers/test_selector.py    | 5 +++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/homeassistant/helpers/selector.py b/homeassistant/helpers/selector.py
index 5a542657d10..025b8de8896 100644
--- a/homeassistant/helpers/selector.py
+++ b/homeassistant/helpers/selector.py
@@ -725,6 +725,7 @@ class DurationSelectorConfig(TypedDict, total=False):
     """Class to represent a duration selector config."""
 
     enable_day: bool
+    enable_millisecond: bool
     allow_negative: bool
 
 
@@ -739,6 +740,8 @@ class DurationSelector(Selector[DurationSelectorConfig]):
             # Enable day field in frontend. A selection with `days` set is allowed
             # even if `enable_day` is not set
             vol.Optional("enable_day"): cv.boolean,
+            # Enable millisecond field in frontend.
+            vol.Optional("enable_millisecond"): cv.boolean,
             # Allow negative durations. Will default to False in HA Core 2025.6.0.
             vol.Optional("allow_negative"): cv.boolean,
         }
diff --git a/tests/helpers/test_selector.py b/tests/helpers/test_selector.py
index e93ec3b8c22..de8c3555831 100644
--- a/tests/helpers/test_selector.py
+++ b/tests/helpers/test_selector.py
@@ -739,12 +739,13 @@ def test_attribute_selector_schema(
             (
                 {"seconds": 10},
                 {"days": 10},  # Days is allowed also if `enable_day` is not set
+                {"milliseconds": 500},
             ),
             (None, {}),
         ),
         (
-            {"enable_day": True},
-            ({"seconds": 10}, {"days": 10}),
+            {"enable_day": True, "enable_millisecond": True},
+            ({"seconds": 10}, {"days": 10}, {"milliseconds": 500}),
             (None, {}),
         ),
         (