@serenity-js/core/lib/screenplay/abilities/Discardable.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.Discardable = void 0;
/**
 * An interface to be implemented by any [`Ability`](https://serenity-js.org/api/core/class/Ability/) that needs to free up
 * the resources it uses, e.g. disconnect from a database.
 *
 * This [`Discardable.discard`](https://serenity-js.org/api/core/class/Discardable/#discard) method is invoked directly by the [actor](https://serenity-js.org/api/core/class/Actor/), and indirectly by the [stage](https://serenity-js.org/api/core/class/Stage/):
 * - when [SceneFinishes](https://serenity-js.org/api/core-events/class/SceneFinishes/), for actors instantiated after [SceneStarts](https://serenity-js.org/api/core-events/class/SceneStarts/) - e.g. within a test scenario or in a "before each" hook
 * - when [`TestRunFinishes`](https://serenity-js.org/api/core-events/class/TestRunFinishes/), for actors instantiated before [SceneStarts](https://serenity-js.org/api/core-events/class/SceneStarts/) - e.g. in a "before all" hook
 *
 * Note that events such as [SceneFinishes](https://serenity-js.org/api/core-events/class/SceneFinishes/) and [`TestRunFinishes`](https://serenity-js.org/api/core-events/class/TestRunFinishes/) are emitted by Serenity/JS test runner adapters,
 * such as `@serenity-js/cucumber`, `@serenity-js/mocha`, `@serenity-js/jasmine`, and so on.
 * Consult their respective readmes to learn how to register them with your test runner of choice.
 *
 * ## Learn more
 * - [`Ability`](https://serenity-js.org/api/core/class/Ability/)
 * - [`AbilityType`](https://serenity-js.org/api/core/#AbilityType)
 * - [`Initialisable`](https://serenity-js.org/api/core/class/Initialisable/)
 *
 * @group Abilities
 */
class Discardable {
    static isDiscardable(value) {
        return typeof (value['discard']) === 'function'
            && value['discard'].length === 0;
    }
}
exports.Discardable = Discardable;
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