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Detox Copilot

Detox Copilot is an AI-powered plugin that allows you to write Detox tests using natural language commands, powered by large language models (LLMs). It simplifies the process of writing end-to-end tests by translating human-readable instructions into Detox actions and assertions.

note

Detox Copilot is based on a core library called detox-copilot, which is designed for Detox but can be extended to work with other testing frameworks.

Work in Progress

Detox Copilot is in active development, and APIs are subject to change in future releases.

Overview​

Detox Copilot exposes a simple API that integrates seamlessly with your Detox tests. It requires minimal setup and allows you to perform complex testing operations by simply describing them in natural language.

For a more detailed guide on integrating Detox Copilot in your tests, refer to the Detox Copilot Guide.

Methods​

copilot.init(promptHandler)​

Initializes Detox Copilot with the given prompt handler. Must be called before any other Copilot methods.

Parameters:

  • promptHandler (PromptHandler): An object implementing the PromptHandler interface.

Example:

const { copilot } = require('detox');
const OpenAIPromptHandler = require('./OpenAIPromptHandler');

beforeAll(() => {
  const promptHandler = new OpenAIPromptHandler('YOUR_OPENAI_API_KEY');
  copilot.init(promptHandler);
});

copilot.perform(...steps)​

Performs a testing operation or series of operations based on the given steps.

Parameters:

  • steps (string[]): One or more natural language instructions specifying the actions or assertions to perform.

Returns:

  • A promise that resolves when all steps have been executed.

Example:

await copilot.perform(
  'Start the application',
  'Tap on the "Login" button',
  'Enter "user@example.com" into the email field',
  'Enter "password123" into the password field',
  'Press the "Submit" button',
  'The welcome message "Hello, User!" should be displayed'
);

PromptHandler Interface​

The PromptHandler interface defines how Detox Copilot communicates with the LLM service.

interface PromptHandler {
  /**
   * Sends a prompt to the LLM service and returns the response.
   * @param prompt The prompt to send.
   * @param image Optional path to an image capturing the current UI state.
   * @returns A promise resolving to the LLM's response.
   */
  runPrompt(prompt: string, image?: string): Promise<string>;

  /**
   * Indicates whether the LLM service supports snapshot images.
   * @returns A boolean value.
   */
  isSnapshotImageSupported(): boolean;
}

You can refer to the Detox Copilot Guide for an example of implementing a PromptHandler for OpenAI's service.