@serenity-js/core/lib/screenplay/abilities/Initialisable.js

The core Serenity/JS framework, providing the Screenplay Pattern interfaces, as well as the test reporting and integration infrastructure

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Initialisable = void 0;
/**
 * An interface to be implemented by any [`Ability`](https://serenity-js.org/api/core/class/Ability/) that needs to initialise
 * the resources it uses, e.g. establish a database connection.
 *
 * The [`Initialisable.initialise`](https://serenity-js.org/api/core/class/Initialisable/#initialise) method is invoked whenever [`Actor.attemptsTo`](https://serenity-js.org/api/core/class/Actor/#attemptsTo) method is called,
 * but **only when** [`Initialisable.isInitialised`](https://serenity-js.org/api/core/class/Initialisable/#isInitialised) returns false. This is to avoid initialising abilities more than once.
 *
 * ## Learn more
 * - [`Ability`](https://serenity-js.org/api/core/class/Ability/)
 * - [`AbilityType`](https://serenity-js.org/api/core/#AbilityType)
 * - [`Discardable`](https://serenity-js.org/api/core/class/Discardable/)
 *
 * @group Abilities
 */
class Initialisable {
    static isInitialisable(value) {
        return typeof (value['initialise']) === 'function'
            && value['initialise'].length === 0
            && typeof value['isInitialised'] === 'function'
            && value['isInitialised'].length === 0;
    }
}
exports.Initialisable = Initialisable;
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