[template.alarm_control_panel] Use FixedVector for iteration-only sensor storage

esphome/components/light/light_call.cpp

@@ -52,10 +52,8 @@ static void log_invalid_parameter(const char *name, const LogString *message) {
   }
 
 static const LogString *color_mode_to_human(ColorMode color_mode) {
-  if (color_mode == ColorMode::ON_OFF)
-    return LOG_STR("On/Off");
-  if (color_mode == ColorMode::BRIGHTNESS)
-    return LOG_STR("Brightness");
+  if (color_mode == ColorMode::UNKNOWN)
+    return LOG_STR("Unknown");
   if (color_mode == ColorMode::WHITE)
     return LOG_STR("White");
   if (color_mode == ColorMode::COLOR_TEMPERATURE)
@@ -70,7 +68,7 @@ static const LogString *color_mode_to_human(ColorMode color_mode) {
     return LOG_STR("RGB + cold/warm white");
   if (color_mode == ColorMode::RGB_COLOR_TEMPERATURE)
     return LOG_STR("RGB + color temperature");
-  return LOG_STR("Unknown");
+  return LOG_STR("");
 }
 
 // Helper to log percentage values

esphome/components/template/alarm_control_panel/__init__.py

@@ -137,7 +137,11 @@ async def to_code(config):
         cg.add(var.set_arming_night_time(config[CONF_ARMING_NIGHT_TIME]))
         supports_arm_night = True
 
-    for sensor in config.get(CONF_BINARY_SENSORS, []):
+    if sensors := config.get(CONF_BINARY_SENSORS, []):
+        # Initialize FixedVector with the exact number of sensors
+        cg.add(var.init_sensors(len(sensors)))
+
+    for sensor in sensors:
         bs = await cg.get_variable(sensor[CONF_INPUT])
 
         flags = BinarySensorFlags[FLAG_NORMAL]

esphome/components/template/alarm_control_panel/template_alarm_control_panel.cpp

@@ -20,10 +20,13 @@ void TemplateAlarmControlPanel::add_sensor(binary_sensor::BinarySensor *sensor,
   // Save the flags and type. Assign a store index for the per sensor data type.
   SensorDataStore sd;
   sd.last_chime_state = false;
-  this->sensor_map_[sensor].flags = flags;
-  this->sensor_map_[sensor].type = type;
+  AlarmSensor alarm_sensor;
+  alarm_sensor.sensor = sensor;
+  alarm_sensor.info.flags = flags;
+  alarm_sensor.info.type = type;
+  alarm_sensor.info.store_index = this->next_store_index_++;
+  this->sensors_.push_back(alarm_sensor);
   this->sensor_data_.push_back(sd);
-  this->sensor_map_[sensor].store_index = this->next_store_index_++;
 };
 
 static const LogString *sensor_type_to_string(AlarmSensorType type) {
@@ -45,7 +48,7 @@ void TemplateAlarmControlPanel::dump_config() {
   ESP_LOGCONFIG(TAG,
                 "TemplateAlarmControlPanel:\n"
                 "  Current State: %s\n"
-                "  Number of Codes: %u\n"
+                "  Number of Codes: %zu\n"
                 "  Requires Code To Arm: %s\n"
                 "  Arming Away Time: %" PRIu32 "s\n"
                 "  Arming Home Time: %" PRIu32 "s\n"
@@ -58,7 +61,8 @@ void TemplateAlarmControlPanel::dump_config() {
                 (this->arming_home_time_ / 1000), (this->arming_night_time_ / 1000), (this->pending_time_ / 1000),
                 (this->trigger_time_ / 1000), this->get_supported_features());
 #ifdef USE_BINARY_SENSOR
-  for (auto const &[sensor, info] : this->sensor_map_) {
+  for (const auto &alarm_sensor : this->sensors_) {
+    const uint16_t flags = alarm_sensor.info.flags;
     ESP_LOGCONFIG(TAG,
                   "  Binary Sensor:\n"
                   "    Name: %s\n"
@@ -67,11 +71,10 @@ void TemplateAlarmControlPanel::dump_config() {
                   "    Armed night bypass: %s\n"
                   "    Auto bypass: %s\n"
                   "    Chime mode: %s",
-                  sensor->get_name().c_str(), LOG_STR_ARG(sensor_type_to_string(info.type)),
-                  TRUEFALSE(info.flags & BINARY_SENSOR_MODE_BYPASS_ARMED_HOME),
-                  TRUEFALSE(info.flags & BINARY_SENSOR_MODE_BYPASS_ARMED_NIGHT),
-                  TRUEFALSE(info.flags & BINARY_SENSOR_MODE_BYPASS_AUTO),
-                  TRUEFALSE(info.flags & BINARY_SENSOR_MODE_CHIME));
+                  alarm_sensor.sensor->get_name().c_str(), LOG_STR_ARG(sensor_type_to_string(alarm_sensor.info.type)),
+                  TRUEFALSE(flags & BINARY_SENSOR_MODE_BYPASS_ARMED_HOME),
+                  TRUEFALSE(flags & BINARY_SENSOR_MODE_BYPASS_ARMED_NIGHT),
+                  TRUEFALSE(flags & BINARY_SENSOR_MODE_BYPASS_AUTO), TRUEFALSE(flags & BINARY_SENSOR_MODE_CHIME));
   }
 #endif
 }
@@ -121,7 +124,9 @@ void TemplateAlarmControlPanel::loop() {
 
 #ifdef USE_BINARY_SENSOR
   // Test all of the sensors regardless of the alarm panel state
-  for (auto const &[sensor, info] : this->sensor_map_) {
+  for (const auto &alarm_sensor : this->sensors_) {
+    const auto &info = alarm_sensor.info;
+    auto *sensor = alarm_sensor.sensor;
     // Check for chime zones
     if (info.flags & BINARY_SENSOR_MODE_CHIME) {
       // Look for the transition from closed to open
@@ -242,11 +247,11 @@ void TemplateAlarmControlPanel::arm_(optional<std::string> code, alarm_control_p
 
 void TemplateAlarmControlPanel::bypass_before_arming() {
 #ifdef USE_BINARY_SENSOR
-  for (auto const &[sensor, info] : this->sensor_map_) {
+  for (const auto &alarm_sensor : this->sensors_) {
     // Check for faulted bypass_auto sensors and remove them from monitoring
-    if ((info.flags & BINARY_SENSOR_MODE_BYPASS_AUTO) && (sensor->state)) {
-      ESP_LOGW(TAG, "'%s' is faulted and will be automatically bypassed", sensor->get_name().c_str());
-      this->bypassed_sensor_indicies_.push_back(info.store_index);
+    if ((alarm_sensor.info.flags & BINARY_SENSOR_MODE_BYPASS_AUTO) && (alarm_sensor.sensor->state)) {
+      ESP_LOGW(TAG, "'%s' is faulted and will be automatically bypassed", alarm_sensor.sensor->get_name().c_str());
+      this->bypassed_sensor_indicies_.push_back(alarm_sensor.info.store_index);
     }
   }
 #endif

esphome/components/template/alarm_control_panel/template_alarm_control_panel.h

@@ -1,11 +1,12 @@
 #pragma once
 
 #include <cinttypes>
-#include <map>
+#include <vector>
 
 #include "esphome/core/automation.h"
 #include "esphome/core/component.h"
 #include "esphome/core/defines.h"
+#include "esphome/core/helpers.h"
 
 #include "esphome/components/alarm_control_panel/alarm_control_panel.h"
 
@@ -49,6 +50,13 @@ struct SensorInfo {
   uint8_t store_index;
 };
 
+#ifdef USE_BINARY_SENSOR
+struct AlarmSensor {
+  binary_sensor::BinarySensor *sensor;
+  SensorInfo info;
+};
+#endif
+
 class TemplateAlarmControlPanel final : public alarm_control_panel::AlarmControlPanel, public Component {
  public:
   TemplateAlarmControlPanel();
@@ -63,6 +71,12 @@ class TemplateAlarmControlPanel final : public alarm_control_panel::AlarmControl
   void bypass_before_arming();
 
 #ifdef USE_BINARY_SENSOR
+  /** Initialize the sensors vector with the specified capacity.
+   *
+   * @param capacity The number of sensors to allocate space for.
+   */
+  void init_sensors(size_t capacity) { this->sensors_.init(capacity); }
+
   /** Add a binary_sensor to the alarm_panel.
    *
    * @param sensor The BinarySensor instance.
@@ -122,8 +136,8 @@ class TemplateAlarmControlPanel final : public alarm_control_panel::AlarmControl
  protected:
   void control(const alarm_control_panel::AlarmControlPanelCall &call) override;
 #ifdef USE_BINARY_SENSOR
-  // This maps a binary sensor to its alarm specific info
-  std::map<binary_sensor::BinarySensor *, SensorInfo> sensor_map_;
+  // List of binary sensors with their alarm-specific info
+  FixedVector<AlarmSensor> sensors_;
   // a list of automatically bypassed sensors
   std::vector<uint8_t> bypassed_sensor_indicies_;
 #endif

esphome/components/web_server/ota/__init__.py

@@ -1,17 +1,10 @@
-import logging
-
 import esphome.codegen as cg
 from esphome.components.esp32 import add_idf_component
 from esphome.components.ota import BASE_OTA_SCHEMA, OTAComponent, ota_to_code
-from esphome.config_helpers import merge_config
 import esphome.config_validation as cv
-from esphome.const import CONF_ID, CONF_OTA, CONF_PLATFORM, CONF_WEB_SERVER
+from esphome.const import CONF_ID
 from esphome.core import CORE, coroutine_with_priority
 from esphome.coroutine import CoroPriority
-import esphome.final_validate as fv
-from esphome.types import ConfigType
-
-_LOGGER = logging.getLogger(__name__)
 
 CODEOWNERS = ["@esphome/core"]
 DEPENDENCIES = ["network", "web_server_base"]
@@ -19,53 +12,6 @@ DEPENDENCIES = ["network", "web_server_base"]
 web_server_ns = cg.esphome_ns.namespace("web_server")
 WebServerOTAComponent = web_server_ns.class_("WebServerOTAComponent", OTAComponent)
 
-
-def _web_server_ota_final_validate(config: ConfigType) -> None:
-    """Merge multiple web_server OTA instances into one.
-
-    Multiple web_server OTA instances register duplicate HTTP handlers for /update,
-    causing undefined behavior. Merge them into a single instance.
-    """
-    full_conf = fv.full_config.get()
-    ota_confs = full_conf.get(CONF_OTA, [])
-
-    web_server_ota_configs: list[ConfigType] = []
-    other_ota_configs: list[ConfigType] = []
-
-    for ota_conf in ota_confs:
-        if ota_conf.get(CONF_PLATFORM) == CONF_WEB_SERVER:
-            web_server_ota_configs.append(ota_conf)
-        else:
-            other_ota_configs.append(ota_conf)
-
-    if len(web_server_ota_configs) <= 1:
-        return
-
-    # Merge all web_server OTA configs into the first one
-    merged = web_server_ota_configs[0]
-    for ota_conf in web_server_ota_configs[1:]:
-        # Validate that IDs are consistent if manually specified
-        if (
-            merged[CONF_ID].is_manual
-            and ota_conf[CONF_ID].is_manual
-            and merged[CONF_ID] != ota_conf[CONF_ID]
-        ):
-            raise cv.Invalid(
-                f"Found multiple web_server OTA configurations but {CONF_ID} is inconsistent"
-            )
-        merged = merge_config(merged, ota_conf)
-
-    _LOGGER.warning(
-        "Found and merged %d web_server OTA configurations into one instance",
-        len(web_server_ota_configs),
-    )
-
-    # Replace OTA configs with merged web_server + other OTA platforms
-    other_ota_configs.append(merged)
-    full_conf[CONF_OTA] = other_ota_configs
-    fv.full_config.set(full_conf)
-
-
 CONFIG_SCHEMA = (
     cv.Schema(
         {
@@ -76,8 +22,6 @@ CONFIG_SCHEMA = (
     .extend(cv.COMPONENT_SCHEMA)
 )
 
-FINAL_VALIDATE_SCHEMA = _web_server_ota_final_validate
-
 
 @coroutine_with_priority(CoroPriority.WEB_SERVER_OTA)
 async def to_code(config):

esphome/components/wifi/__init__.py

@@ -12,6 +12,7 @@ from esphome.components.network import (
 from esphome.components.psram import is_guaranteed as psram_is_guaranteed
 from esphome.config_helpers import filter_source_files_from_platform
 import esphome.config_validation as cv
+from esphome.config_validation import only_with_esp_idf
 from esphome.const import (
     CONF_AP,
     CONF_BSSID,
@@ -351,7 +352,7 @@ CONFIG_SCHEMA = cv.All(
                 single=True
             ),
             cv.Optional(CONF_USE_PSRAM): cv.All(
-                cv.only_on_esp32, cv.requires_component("psram"), cv.boolean
+                only_with_esp_idf, cv.requires_component("psram"), cv.boolean
             ),
         }
     ),

requirements_test.txt

@@ -1,4 +1,4 @@
-pylint==4.0.3
+pylint==4.0.2
 flake8==7.3.0  # also change in .pre-commit-config.yaml when updating
 ruff==0.14.4  # also change in .pre-commit-config.yaml when updating
 pyupgrade==3.21.1  # also change in .pre-commit-config.yaml when updating

tests/component_tests/ota/test_web_server_ota.py

@@ -1,18 +1,6 @@
 """Tests for the web_server OTA platform."""
 
-from __future__ import annotations
-
 from collections.abc import Callable
-import logging
-from typing import Any
-
-import pytest
-
-from esphome import config_validation as cv
-from esphome.components.web_server.ota import _web_server_ota_final_validate
-from esphome.const import CONF_ID, CONF_OTA, CONF_PLATFORM, CONF_WEB_SERVER
-from esphome.core import ID
-import esphome.final_validate as fv
 
 
 def test_web_server_ota_generated(generate_main: Callable[[str], str]) -> None:
@@ -112,144 +100,3 @@ def test_web_server_ota_esp8266(generate_main: Callable[[str], str]) -> None:
     # Check web server OTA component is present
     assert "WebServerOTAComponent" in main_cpp
     assert "web_server::WebServerOTAComponent" in main_cpp
-
-
-@pytest.mark.parametrize(
-    ("ota_configs", "expected_count", "warning_expected"),
-    [
-        pytest.param(
-            [
-                {
-                    CONF_PLATFORM: CONF_WEB_SERVER,
-                    CONF_ID: ID("ota_web", is_manual=False),
-                }
-            ],
-            1,
-            False,
-            id="single_instance_no_merge",
-        ),
-        pytest.param(
-            [
-                {
-                    CONF_PLATFORM: CONF_WEB_SERVER,
-                    CONF_ID: ID("ota_web_1", is_manual=False),
-                },
-                {
-                    CONF_PLATFORM: CONF_WEB_SERVER,
-                    CONF_ID: ID("ota_web_2", is_manual=False),
-                },
-            ],
-            1,
-            True,
-            id="two_instances_merged",
-        ),
-        pytest.param(
-            [
-                {
-                    CONF_PLATFORM: CONF_WEB_SERVER,
-                    CONF_ID: ID("ota_web_1", is_manual=False),
-                },
-                {
-                    CONF_PLATFORM: "esphome",
-                    CONF_ID: ID("ota_esphome", is_manual=False),
-                },
-                {
-                    CONF_PLATFORM: CONF_WEB_SERVER,
-                    CONF_ID: ID("ota_web_2", is_manual=False),
-                },
-            ],
-            2,
-            True,
-            id="mixed_platforms_web_server_merged",
-        ),
-    ],
-)
-def test_web_server_ota_instance_merging(
-    ota_configs: list[dict[str, Any]],
-    expected_count: int,
-    warning_expected: bool,
-    caplog: pytest.LogCaptureFixture,
-) -> None:
-    """Test web_server OTA instance merging behavior."""
-    full_conf = {CONF_OTA: ota_configs.copy()}
-
-    token = fv.full_config.set(full_conf)
-    try:
-        with caplog.at_level(logging.WARNING):
-            _web_server_ota_final_validate({})
-
-        updated_conf = fv.full_config.get()
-
-        # Verify total number of OTA platforms
-        assert len(updated_conf[CONF_OTA]) == expected_count
-
-        # Verify warning
-        if warning_expected:
-            assert any(
-                "Found and merged" in record.message
-                and "web_server OTA" in record.message
-                for record in caplog.records
-            ), "Expected merge warning not found in log"
-        else:
-            assert len(caplog.records) == 0, "Unexpected warnings logged"
-    finally:
-        fv.full_config.reset(token)
-
-
-def test_web_server_ota_consistent_manual_ids(
-    caplog: pytest.LogCaptureFixture,
-) -> None:
-    """Test that consistent manual IDs can be merged successfully."""
-    ota_configs = [
-        {
-            CONF_PLATFORM: CONF_WEB_SERVER,
-            CONF_ID: ID("ota_web", is_manual=True),
-        },
-        {
-            CONF_PLATFORM: CONF_WEB_SERVER,
-            CONF_ID: ID("ota_web", is_manual=True),
-        },
-    ]
-
-    full_conf = {CONF_OTA: ota_configs}
-
-    token = fv.full_config.set(full_conf)
-    try:
-        with caplog.at_level(logging.WARNING):
-            _web_server_ota_final_validate({})
-
-        updated_conf = fv.full_config.get()
-        assert len(updated_conf[CONF_OTA]) == 1
-        assert updated_conf[CONF_OTA][0][CONF_ID].id == "ota_web"
-        assert any(
-            "Found and merged" in record.message and "web_server OTA" in record.message
-            for record in caplog.records
-        )
-    finally:
-        fv.full_config.reset(token)
-
-
-def test_web_server_ota_inconsistent_manual_ids() -> None:
-    """Test that inconsistent manual IDs raise an error."""
-    ota_configs = [
-        {
-            CONF_PLATFORM: CONF_WEB_SERVER,
-            CONF_ID: ID("ota_web_1", is_manual=True),
-        },
-        {
-            CONF_PLATFORM: CONF_WEB_SERVER,
-            CONF_ID: ID("ota_web_2", is_manual=True),
-        },
-    ]
-
-    full_conf = {CONF_OTA: ota_configs}
-
-    token = fv.full_config.set(full_conf)
-    try:
-        with pytest.raises(
-            cv.Invalid,
-            match="Found multiple web_server OTA configurations but id is inconsistent",
-        ):
-            _web_server_ota_final_validate({})
-    finally:
-        fv.full_config.reset(token)

tests/integration/fixtures/template_alarm_control_panel_many_sensors.yaml

@@ -0,0 +1,136 @@
+esphome:
+  name: template-alarm-many-sensors
+  friendly_name: "Template Alarm Control Panel with Many Sensors"
+
+logger:
+
+host:
+
+api:
+
+binary_sensor:
+  - platform: template
+    id: sensor1
+    name: "Door 1"
+  - platform: template
+    id: sensor2
+    name: "Door 2"
+  - platform: template
+    id: sensor3
+    name: "Window 1"
+  - platform: template
+    id: sensor4
+    name: "Window 2"
+  - platform: template
+    id: sensor5
+    name: "Motion 1"
+  - platform: template
+    id: sensor6
+    name: "Motion 2"
+  - platform: template
+    id: sensor7
+    name: "Glass Break 1"
+  - platform: template
+    id: sensor8
+    name: "Glass Break 2"
+  - platform: template
+    id: sensor9
+    name: "Smoke Detector"
+  - platform: template
+    id: sensor10
+    name: "CO Detector"
+
+alarm_control_panel:
+  - platform: template
+    id: test_alarm
+    name: "Test Alarm"
+    codes:
+      - "1234"
+    requires_code_to_arm: true
+    arming_away_time: 5s
+    arming_home_time: 3s
+    arming_night_time: 3s
+    pending_time: 10s
+    trigger_time: 300s
+    restore_mode: ALWAYS_DISARMED
+    binary_sensors:
+      - input: sensor1
+        bypass_armed_home: false
+        bypass_armed_night: false
+        bypass_auto: true
+        chime: true
+        trigger_mode: DELAYED
+      - input: sensor2
+        bypass_armed_home: false
+        bypass_armed_night: false
+        bypass_auto: true
+        chime: true
+        trigger_mode: DELAYED
+      - input: sensor3
+        bypass_armed_home: true
+        bypass_armed_night: false
+        bypass_auto: false
+        chime: false
+        trigger_mode: DELAYED
+      - input: sensor4
+        bypass_armed_home: true
+        bypass_armed_night: false
+        bypass_auto: false
+        chime: false
+        trigger_mode: DELAYED
+      - input: sensor5
+        bypass_armed_home: false
+        bypass_armed_night: true
+        bypass_auto: false
+        chime: false
+        trigger_mode: INSTANT
+      - input: sensor6
+        bypass_armed_home: false
+        bypass_armed_night: true
+        bypass_auto: false
+        chime: false
+        trigger_mode: INSTANT
+      - input: sensor7
+        bypass_armed_home: false
+        bypass_armed_night: false
+        bypass_auto: false
+        chime: false
+        trigger_mode: INSTANT
+      - input: sensor8
+        bypass_armed_home: false
+        bypass_armed_night: false
+        bypass_auto: false
+        chime: false
+        trigger_mode: INSTANT
+      - input: sensor9
+        bypass_armed_home: false
+        bypass_armed_night: false
+        bypass_auto: false
+        chime: false
+        trigger_mode: INSTANT_ALWAYS
+      - input: sensor10
+        bypass_armed_home: false
+        bypass_armed_night: false
+        bypass_auto: false
+        chime: false
+        trigger_mode: INSTANT_ALWAYS
+    on_disarmed:
+      - logger.log: "Alarm disarmed"
+    on_arming:
+      - logger.log: "Alarm arming"
+    on_armed_away:
+      - logger.log: "Alarm armed away"
+    on_armed_home:
+      - logger.log: "Alarm armed home"
+    on_armed_night:
+      - logger.log: "Alarm armed night"
+    on_pending:
+      - logger.log: "Alarm pending"
+    on_triggered:
+      - logger.log: "Alarm triggered"
+    on_cleared:
+      - logger.log: "Alarm cleared"
+    on_chime:
+      - logger.log: "Chime activated"
+    on_ready:
+      - logger.log: "Sensors ready state changed"

tests/integration/test_template_alarm_control_panel_many_sensors.py

@@ -0,0 +1,118 @@
+"""Integration test for template alarm control panel with many sensors."""
+
+from __future__ import annotations
+
+import aioesphomeapi
+from aioesphomeapi.model import APIIntEnum
+import pytest
+
+from .state_utils import InitialStateHelper
+from .types import APIClientConnectedFactory, RunCompiledFunction
+
+
+class EspHomeACPFeatures(APIIntEnum):
+    """ESPHome AlarmControlPanel feature numbers."""
+
+    ARM_HOME = 1
+    ARM_AWAY = 2
+    ARM_NIGHT = 4
+    TRIGGER = 8
+    ARM_CUSTOM_BYPASS = 16
+    ARM_VACATION = 32
+
+
+@pytest.mark.asyncio
+async def test_template_alarm_control_panel_many_sensors(
+    yaml_config: str,
+    run_compiled: RunCompiledFunction,
+    api_client_connected: APIClientConnectedFactory,
+) -> None:
+    """Test template alarm control panel with 10 binary sensors using FixedVector."""
+    async with run_compiled(yaml_config), api_client_connected() as client:
+        # Get entity info first
+        entities, _ = await client.list_entities_services()
+
+        # Find the alarm control panel and binary sensors
+        alarm_info: aioesphomeapi.AlarmControlPanelInfo | None = None
+        binary_sensors: list[aioesphomeapi.BinarySensorInfo] = []
+
+        for entity in entities:
+            if isinstance(entity, aioesphomeapi.AlarmControlPanelInfo):
+                alarm_info = entity
+            elif isinstance(entity, aioesphomeapi.BinarySensorInfo):
+                binary_sensors.append(entity)
+
+        assert alarm_info is not None, "Alarm control panel entity info not found"
+        assert alarm_info.name == "Test Alarm"
+        assert alarm_info.requires_code is True
+        assert alarm_info.requires_code_to_arm is True
+
+        # Verify we have 10 binary sensors
+        assert len(binary_sensors) == 10, (
+            f"Expected 10 binary sensors, got {len(binary_sensors)}"
+        )
+
+        # Verify sensor names
+        expected_sensor_names = {
+            "Door 1",
+            "Door 2",
+            "Window 1",
+            "Window 2",
+            "Motion 1",
+            "Motion 2",
+            "Glass Break 1",
+            "Glass Break 2",
+            "Smoke Detector",
+            "CO Detector",
+        }
+        actual_sensor_names = {sensor.name for sensor in binary_sensors}
+        assert actual_sensor_names == expected_sensor_names, (
+            f"Sensor names mismatch. Expected: {expected_sensor_names}, "
+            f"Got: {actual_sensor_names}"
+        )
+
+        # Use InitialStateHelper to wait for all initial states
+        state_helper = InitialStateHelper(entities)
+
+        def on_state(state: aioesphomeapi.EntityState) -> None:
+            # We'll receive subsequent states here after initial states
+            pass
+
+        client.subscribe_states(state_helper.on_state_wrapper(on_state))
+
+        # Wait for all initial states
+        await state_helper.wait_for_initial_states(timeout=5.0)
+
+        # Verify the alarm state is disarmed initially
+        alarm_state = state_helper.initial_states.get(alarm_info.key)
+        assert alarm_state is not None, "Alarm control panel initial state not received"
+        assert isinstance(alarm_state, aioesphomeapi.AlarmControlPanelEntityState)
+        assert alarm_state.state == aioesphomeapi.AlarmControlPanelState.DISARMED, (
+            f"Expected initial state DISARMED, got {alarm_state.state}"
+        )
+
+        # Verify all 10 binary sensors have initial states
+        binary_sensor_states = [
+            state_helper.initial_states.get(sensor.key) for sensor in binary_sensors
+        ]
+        assert all(state is not None for state in binary_sensor_states), (
+            "Not all binary sensors have initial states"
+        )
+
+        # Verify all binary sensor states are BinarySensorState type
+        for i, state in enumerate(binary_sensor_states):
+            assert isinstance(state, aioesphomeapi.BinarySensorState), (
+                f"Binary sensor {i} state is not BinarySensorState: {type(state)}"
+            )
+
+        # Verify supported features
+        expected_features = (
+            EspHomeACPFeatures.ARM_HOME
+            | EspHomeACPFeatures.ARM_AWAY
+            | EspHomeACPFeatures.ARM_NIGHT
+            | EspHomeACPFeatures.TRIGGER
+        )
+        assert alarm_info.supported_features == expected_features, (
+            f"Expected supported_features={expected_features} (ARM_HOME|ARM_AWAY|ARM_NIGHT|TRIGGER), "
+            f"got {alarm_info.supported_features}"
+        )