[hoermann_hcp] Add buttons to hoermann_hcp (#18544)

tests/components/hoermann_hcp/button/hoermann_hcp_button_test.cpp

@@ -0,0 +1,72 @@
+#include <gtest/gtest.h>
+
+#include "esphome/components/hoermann_hcp/button/hoermann_hcp_button.h"
+
+#include "../common.h"
+
+namespace esphome::hoermann_hcp::testing {
+
+// The intermediate positions are named in the second register, which repeats that name on release.
+TEST(HoermannHcpButtonTest, VentButtonSendsTheVentCommand) {
+  TestableHoermannHcp door;
+  HoermannHcpVentButton vent(&door);
+  connect_controller(door);
+
+  vent.press();
+
+  auto [pressed, pressed_2] = poll_command(door);
+  EXPECT_EQ(pressed, 0x0200);
+  EXPECT_EQ(pressed_2, 0x4000);
+  std::this_thread::sleep_for(KEY_PRESS_ELAPSED);
+  auto [released, released_2] = poll_command(door);
+  EXPECT_EQ(released, 0x0100);
+  EXPECT_EQ(released_2, 0x4000);
+}
+
+TEST(HoermannHcpButtonTest, HalfOpenButtonSendsTheHalfOpenCommand) {
+  TestableHoermannHcp door;
+  HoermannHcpHalfOpenButton half_open(&door);
+  connect_controller(door);
+
+  half_open.press();
+
+  auto [pressed, pressed_2] = poll_command(door);
+  EXPECT_EQ(pressed, 0x0200);
+  EXPECT_EQ(pressed_2, 0x0400);
+  std::this_thread::sleep_for(KEY_PRESS_ELAPSED);
+  auto [released, released_2] = poll_command(door);
+  EXPECT_EQ(released, 0x0100);
+  EXPECT_EQ(released_2, 0x0400);
+}
+
+// The door drives to the vent position on its own, so a position the cover was still travelling to must not
+// stop it on the way there.
+TEST(HoermannHcpButtonTest, VentAbandonsAnArmedTarget) {
+  TestableHoermannHcp door;  // starts out fully closed
+  HoermannHcpVentButton vent(&door);
+  connect_controller(door);
+  door.set_position(0.5f);
+  consume_command(door);
+  door.on_write_registers(BROADCAST_REG, make_registers({0x0000, 0x0014, 0x0100}));
+  ASSERT_EQ(door.get_door_state(), DoorState::OPENING);
+
+  vent.press();
+  consume_command(door);
+
+  // Position 120/200 = 0.6 is past the abandoned target, which must no longer stop the door.
+  door.on_write_registers(BROADCAST_REG, make_registers({0x0000, 0x0078, 0x0100}));
+  EXPECT_EQ(poll_command(door).first, 0x0000);
+}
+
+// A button carries no state, so a refused press is simply dropped rather than fired once the controller
+// turns up, which could be much later.
+TEST(HoermannHcpButtonTest, PressWithoutABusControllerSendsNothing) {
+  HoermannHcp door;  // never contacted by a bus controller
+  HoermannHcpVentButton vent(&door);
+
+  vent.press();
+
+  EXPECT_EQ(poll_command(door).first, 0x0000);
+}
+
+}  // namespace esphome::hoermann_hcp::testing

tests/components/hoermann_hcp/common.yaml

@@ -12,6 +12,13 @@ binary_sensor:
     is_connected:
       name: Garage Connected
 
+button:
+  - platform: hoermann_hcp
+    vent:
+      name: Garage Vent
+    half_open:
+      name: Garage Half Open
+
 light:
   - platform: hoermann_hcp
     name: Garage Light