From fa0778700756c648cd25beefc11642ee0d3b7953 Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@koston.org>
Date: Tue, 8 Sep 2020 10:08:31 -0500
Subject: [PATCH] Fix cover template entities honoring titlecase True/False
 (#39803)

---
 homeassistant/components/template/cover.py |  7 ++--
 homeassistant/components/template/light.py |  2 +-
 tests/components/template/test_cover.py    | 41 ++++++++++++++++++++++
 3 files changed, 46 insertions(+), 4 deletions(-)

diff --git a/homeassistant/components/template/cover.py b/homeassistant/components/template/cover.py
index e0a1b2bc33c..dc9e5ead1d0 100644
--- a/homeassistant/components/template/cover.py
+++ b/homeassistant/components/template/cover.py
@@ -249,15 +249,16 @@ class CoverTemplate(TemplateEntity, CoverEntity):
             self._position = None
             return
 
-        if result in _VALID_STATES:
-            if result in ("true", STATE_OPEN):
+        state = result.lower()
+        if state in _VALID_STATES:
+            if state in ("true", STATE_OPEN):
                 self._position = 100
             else:
                 self._position = 0
         else:
             _LOGGER.error(
                 "Received invalid cover is_on state: %s. Expected: %s",
-                result,
+                state,
                 ", ".join(_VALID_STATES),
             )
             self._position = None
diff --git a/homeassistant/components/template/light.py b/homeassistant/components/template/light.py
index 5f87301cce8..2b79846986c 100644
--- a/homeassistant/components/template/light.py
+++ b/homeassistant/components/template/light.py
@@ -412,7 +412,7 @@ class LightTemplate(TemplateEntity, LightEntity):
                 self._available = True
             return
 
-        state = str(result).lower()
+        state = result.lower()
         if state in _VALID_STATES:
             self._state = state in ("true", STATE_ON)
         else:
diff --git a/tests/components/template/test_cover.py b/tests/components/template/test_cover.py
index d51d71648bf..5deb540782c 100644
--- a/tests/components/template/test_cover.py
+++ b/tests/components/template/test_cover.py
@@ -1079,3 +1079,44 @@ async def test_unique_id(hass):
     await hass.async_block_till_done()
 
     assert len(hass.states.async_all()) == 1
+
+
+async def test_state_gets_lowercased(hass):
+    """Test True/False is lowercased."""
+
+    hass.states.async_set("binary_sensor.garage_door_sensor", "off")
+
+    await setup.async_setup_component(
+        hass,
+        "cover",
+        {
+            "cover": {
+                "platform": "template",
+                "covers": {
+                    "garage_door": {
+                        "friendly_name": "Garage Door",
+                        "value_template": "{{ is_state('binary_sensor.garage_door_sensor', 'off') }}",
+                        "open_cover": {
+                            "service": "cover.open_cover",
+                            "entity_id": "cover.test_state",
+                        },
+                        "close_cover": {
+                            "service": "cover.close_cover",
+                            "entity_id": "cover.test_state",
+                        },
+                    },
+                },
+            },
+        },
+    )
+
+    await hass.async_block_till_done()
+    await hass.async_start()
+    await hass.async_block_till_done()
+
+    assert len(hass.states.async_all()) == 2
+
+    assert hass.states.get("cover.garage_door").state == STATE_OPEN
+    hass.states.async_set("binary_sensor.garage_door_sensor", "on")
+    await hass.async_block_till_done()
+    assert hass.states.get("cover.garage_door").state == STATE_CLOSED