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Лучшие практики для написания тестов с использованием React Testing Library

В статье рассматриваются способы повышения качества тестов, написанных с использованием React Testing Library. Автор делится практическими советами, которые помогут вам писать более надежные и поддерживаемые тесты. Среди ключевых моментов:

- Как избегать тестирования реализаций и сосредотачиваться на поведении компонентов.
- Почему важно работать с пользовательскими событиями вместо прямого взаимодействия с DOM.
- Использование ARIA-атрибутов для более точного поиска элементов.

Эти подходы помогают создавать тесты, которые лучше отражают реальное использование компонентов и упрощают их сопровождение.



export const Form = ({ saveData }) => {
const [state, setState] = useState({
name: "",
email: "",
password: "",
confirmPassword: "",
conditionsAccepted: false,
});

const onFieldChange = (event) => {
let value = event.target.value;
if (event.target.type === "checkbox") {
value = event.target.checked;
}

setState({ ...state, [event.target.id]: value });
};

const onSubmit = (event) => {
event.preventDefault();
saveData(state);
};

return (
<form className="form" onSubmit={onSubmit}>
<div className="field">
<label>Name</label>
<input
id="name"
onChange={onFieldChange}
placeholder="Enter your name"
/>
</div>
<div className="field">
<label>Email</label>
<input
type="email"
id="email"
onChange={onFieldChange}
placeholder="Enter your email address"
/>
</div>
<div className="field">
<label>Password</label>
<input
type="password"
id="password"
onChange={onFieldChange}
placeholder="Password should be at least 8 characters"
/>
</div>
<div className="field">
<label>Confirm password</label>
<input
type="password"
id="confirmPassword"
onChange={onFieldChange}
placeholder="Enter the password once more"
/>
</div>
<div className="field checkbox">
<input type="checkbox" id="conditions" onChange={onFieldChange} />
<label>I agree to the terms and conditions</label>
</div>
<button type="submit">Sign up</button>
</form>
);
};





https://claritydev.net/blog/improving-react-testing-library-tests

✍️ @React_lib



tg-me.com/React_lib/632
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Лучшие практики для написания тестов с использованием React Testing Library

В статье рассматриваются способы повышения качества тестов, написанных с использованием React Testing Library. Автор делится практическими советами, которые помогут вам писать более надежные и поддерживаемые тесты. Среди ключевых моментов:

- Как избегать тестирования реализаций и сосредотачиваться на поведении компонентов.
- Почему важно работать с пользовательскими событиями вместо прямого взаимодействия с DOM.
- Использование ARIA-атрибутов для более точного поиска элементов.

Эти подходы помогают создавать тесты, которые лучше отражают реальное использование компонентов и упрощают их сопровождение.



export const Form = ({ saveData }) => {
const [state, setState] = useState({
name: "",
email: "",
password: "",
confirmPassword: "",
conditionsAccepted: false,
});

const onFieldChange = (event) => {
let value = event.target.value;
if (event.target.type === "checkbox") {
value = event.target.checked;
}

setState({ ...state, [event.target.id]: value });
};

const onSubmit = (event) => {
event.preventDefault();
saveData(state);
};

return (
<form className="form" onSubmit={onSubmit}>
<div className="field">
<label>Name</label>
<input
id="name"
onChange={onFieldChange}
placeholder="Enter your name"
/>
</div>
<div className="field">
<label>Email</label>
<input
type="email"
id="email"
onChange={onFieldChange}
placeholder="Enter your email address"
/>
</div>
<div className="field">
<label>Password</label>
<input
type="password"
id="password"
onChange={onFieldChange}
placeholder="Password should be at least 8 characters"
/>
</div>
<div className="field">
<label>Confirm password</label>
<input
type="password"
id="confirmPassword"
onChange={onFieldChange}
placeholder="Enter the password once more"
/>
</div>
<div className="field checkbox">
<input type="checkbox" id="conditions" onChange={onFieldChange} />
<label>I agree to the terms and conditions</label>
</div>
<button type="submit">Sign up</button>
</form>
);
};





https://claritydev.net/blog/improving-react-testing-library-tests

✍️ @React_lib

BY React




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