ts-sinon

stubConstructor: <T extends new (...args: any[]) => any>(
    constructor: T,
    ...constructorArgs: ConstructorParameters<T> | undefined[]
) => StubbedInstance<InstanceType<T>>;

stubInterface: <T extends object>(
    methods?: ObjectMethodsMap<T>
) => StubbedInstance<T>;

stubObject: <T extends object>(
    object: T,
    methods?: ObjectMethodsKeys<T> | ObjectMethodsMap<T>
) => StubbedInstance<T>;

type AllowedKeys<T, Condition> = {
    [Key in keyof T]: T[Key] extends Condition ? Key : never;
}[keyof T];

type ObjectMethodsKeys<T> = AllowedKeys<T, (...args: any[]) => any>[];

type ObjectMethodsMap<T> = {
    [Key in keyof T]?: T[Key] extends (...args: any[]) => any
        ? ReturnType<T[Key]>
        : never;
};

type StubbedInstance<T> = sinon.SinonStubbedInstance<T> & T;