esphome/tests/integration/fixtures/scheduler_defer_cancel.yaml

esphome:
  name: scheduler-defer-cancel

host:

logger:
  level: DEBUG

api:
  services:
    - service: test_defer_cancel
      then:
        - lambda: |-
            // Schedule 10 defers with the same name
            // Only the last one should execute
            for (int i = 1; i <= 10; i++) {
              App.scheduler.set_timeout(nullptr, "test_defer", 0, [i]() {
                ESP_LOGI("TEST", "Defer executed: %d", i);
                // Fire event with the defer number
                std::string event_type = "defer_executed_" + std::to_string(i);
                id(test_result)->trigger(event_type);
              });
            }

            // Schedule completion notification after all defers
            App.scheduler.set_timeout(nullptr, "completion", 0, []() {
              ESP_LOGI("TEST", "Test complete");
              id(test_complete)->trigger("test_finished");
            });

event:
  - platform: template
    id: test_result
    name: "Test Result"
    event_types:
      - "defer_executed_1"
      - "defer_executed_2"
      - "defer_executed_3"
      - "defer_executed_4"
      - "defer_executed_5"
      - "defer_executed_6"
      - "defer_executed_7"
      - "defer_executed_8"
      - "defer_executed_9"
      - "defer_executed_10"

  - platform: template
    id: test_complete
    name: "Test Complete"
    event_types:
      - "test_finished"