/**
 * @module Expectations/Interfaces
 * @author Alan Rodas Bonjour <alanrodas@gmail.com>
 */
import { Expectation } from './Expectation';
import { FinishedExpectation } from './FinishedExpectation';
/**
 * This interface represents an expectation that is performed over an object.
 *
 * @group API: Types
 */
export interface ObjectExpectation<T> extends Expectation<T> {
    /**
     * Answer if the actual element is empty.
     */
    toBeEmptyObject(): this & FinishedExpectation;
    /**
     * Answer if the actual element has the given amount of properties.
     */
    toHavePropertyCount(count: number): this & FinishedExpectation;
    /**
     * Answer if an object has  at least all keys in the least. Combine with
     * toHaveNoOtherThan to ensure exact key existence
     */
    toHaveAtLeast(keys: string[]): this & FinishedExpectation;
    /**
     * Answer if an object has no other than the given keys (although not all given
     * need to be present). Combine with toHaveAtLeast to ensure exact key existence
     */
    toHaveNoOtherThan(keys: string[]): this & FinishedExpectation;
    /**
     * Answer if the actual element has a property with the given name.
     */
    toHaveProperty(propertyName: string): this & FinishedExpectation;
    /**
     * Answer if the actual element is an instance of a given class (using instanceof).
     */
    toBeInstanceOf(classConstructor: (...arguments_: readonly unknown[]) => unknown): this & FinishedExpectation;
}
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