React18 Enzyme To Rtl

What it does

When your agent uses it

• Enzyme tests need to be rewritten - shallow
• Wrapper.simulate()
• Wrapper.state()
• Wrapper.instance()

Example prompts

• “Use the react18-enzyme-to-rtl skill to provide exact Enzyme → React Testing Library migration patterns for React 18 upgrades”
• “/react18-enzyme-to-rtl”

Workflow steps

8 steps, taken from the first numbered list in SKILL.md.

1. 1getByRole - matches accessible roles (button, textbox, heading, checkbox, etc.)
2. 2getByLabelText - form fields linked to labels
3. 3getByPlaceholderText - input placeholders
4. 4getByText - visible text content
5. 5getByDisplayValue - current value of input/select/textarea
6. 6getByAltText - image alt text
7. 7getByTitle - title attribute
8. 8getByTestId - data-testid attribute (last resort)

What it can do on your machine

Read from SKILL.md and the folder at commit 727ff2e. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  No scripts in the folder and no shell commands in SKILL.md (its code samples are javascript).

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

React18 Enzyme To Rtl loads about 917 tokens when it runs, and up to ~4.4k if it reads all its reference files. Until then it costs about 146 tokens; SKILL.md has 173 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~146

When it runs · the whole SKILL.md, loaded when a task matches

~917

With references · SKILL.md plus every file in references/, read only if the agent opens them

~4.4k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from github/awesome-copilot at commit 727ff2e, republished under its MIT licence (© github). 173 words, ~917 tokens.

name

react18-enzyme-to-rtl

description

Provides exact Enzyme → React Testing Library migration patterns for React 18 upgrades. Use this skill whenever Enzyme tests need to be rewritten - shallow, mount, wrapper.find(), wrapper.simulate(), wrapper.prop(), wrapper.state(), wrapper.instance(), Enzyme configure/Adapter calls, or any test file that imports from enzyme. This skill covers the full API mapping and the philosophy shift from implementation testing to behavior testing. Always read this skill before rewriting Enzyme tests - do not translate Enzyme APIs 1:1, that produces brittle RTL tests.

// Enzyme: tests that the component has the right internal state
expect(wrapper.state('count')).toBe(3);
expect(wrapper.instance().handleClick).toBeDefined();
expect(wrapper.find('Button').prop('disabled')).toBe(true);

// RTL: tests what the user actually sees and can do
expect(screen.getByText('Count: 3')).toBeInTheDocument();
expect(screen.getByRole('button', { name: /submit/i })).toBeDisabled();

// Every Enzyme test rewrites to this shape:
import { render, screen, fireEvent, waitFor } from '@testing-library/react';
import userEvent from '@testing-library/user-event';
import MyComponent from './MyComponent';

describe('MyComponent', () => {
  it('does the thing', async () => {
    // 1. Render (replaces shallow/mount)
    render(<MyComponent prop="value" />);

    // 2. Query (replaces wrapper.find())
    const button = screen.getByRole('button', { name: /submit/i });

    // 3. Interact (replaces simulate())
    await userEvent.setup().click(button);

    // 4. Assert on visible output (replaces wrapper.state() / wrapper.prop())
    expect(screen.getByText('Submitted!')).toBeInTheDocument();
  });
});

// Enzyme with context:
const wrapper = mount(
  <ApolloProvider client={client}>
    <ThemeProvider theme={theme}>
      <MyComponent />
    </ThemeProvider>
  </ApolloProvider>
);

// RTL equivalent (use your project's customRender or wrap inline):
import { render } from '@testing-library/react';
render(
  <MockedProvider mocks={mocks} addTypename={false}>
    <ThemeProvider theme={theme}>
      <MyComponent />
    </ThemeProvider>
  </MockedProvider>
);
// Or use the project's customRender helper if it wraps providers

© github, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 2 other files (references) in skills/react18-enzyme-to-rtl of github/awesome-copilot.

• SKILL.md
• references/async-patterns.md
• references/enzyme-api-map.md

Open the folder on GitHubat commit 727ff2e

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in github/awesome-copilot, which our catalogue first saw on October 7, 2026.

• boshi-xixixi/TraeSkill.trae/Skills/.agents/skills/react18-enzyme-to-rtl