mocktail

Guide Mocktail usage for creating mocks and fakes in Dart and Flutter tests.

Updated Apr 12, 2026
One-click install
npx skills add https://github.com/brahiamsinho/Examen-1-SI2 --skill mocktail-brahiamsinho
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: mocktail
Source: https://github.com/brahiamsinho/Examen-1-SI2/tree/main/.cursor/skills/mocktail
Command: npx skills add https://github.com/brahiamsinho/Examen-1-SI2 --skill mocktail-brahiamsinho

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires mocktail, and includes scripts (resource) components.

What problem does it solve?

This Skill addresses the challenge of creating and managing mocks for testing in Dart and Flutter applications, simplifying the process of isolating and verifying the behavior of individual components.

Core Features & Use Cases

  • Mock Creation: Offers guidance on creating mocks and fakes for testing purposes.
  • Fallback Values: Provides instructions for registering fallback values for custom types.
  • Stubbing: Explains how to stub methods for both synchronous and asynchronous operations.
  • Verification: Details how to verify interactions with mocks.
  • Use Case: Ideal for developers looking to ensure that their code interacts with dependencies in a predictable and testable manner.

Quick Start

To create a mock of the MyService class, use the following command: class MockMyService extends Mock implements MyService {}.

Frequently Asked Questions about mocktail

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I mock dependencies in Dart and Flutter tests?

To mock dependencies in Dart and Flutter tests, create a mock class by extending Mock and implementing your target interface, like `class MockMyService extends Mock implements MyService {}`. This isolates components for predictable behavior verification.

How do I stub methods for asynchronous operations in Mocktail?

Stubbing methods for asynchronous operations in Mocktail involves configuring your mock to return specific responses when called. This ensures your synchronous and asynchronous test interactions yield predictable, controlled results.

Why do I need to register fallback values for custom types in Mocktail?

Registering fallback values for custom types in Mocktail is required when stubbing or verifying methods that use those types as parameters. It provides default instances ensuring the mocking framework functions correctly during test execution.

How do I verify interactions with mocks in a Flutter test?

Verifying interactions with mocks in a Flutter test involves checking that specific methods were called with expected arguments. This confirms your code interacts with dependencies exactly as intended during the test scenario.

Does the Mocktail package require any specific dependencies to work with Dart?

Yes, using the Mocktail package requires the Mocktail dependency to be installed in your Dart or Flutter project environment. This provides the foundational classes needed for creating mocks and fakes.