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import React, { useState } from 'react';
import {
act,
fireEvent,
render,
renderHook,
screen,
waitFor,
waitForElementToBeRemoved,
} from '@testing-library/react';
import { VALIDATION_MODE } from '../constants';
import type {
Control,
FieldErrors,
FieldValues,
FormState,
Mode,
RegisterOptions,
SubmitHandler,
UseFormGetFieldState,
UseFormRegister,
UseFormReturn,
UseFormUnregister,
} from '../types';
import isFunction from '../utils/isFunction';
import noop from '../utils/noop';
import sleep from '../utils/sleep';
import { Controller, createFormControl, useFieldArray, useForm } from '../';
jest.useFakeTimers();
describe('useForm', () => {
describe('when component unMount', () => {
it('should call unSubscribe', () => {
const { result, unmount } = renderHook(() => useForm<{ test: string }>());
result.current.register('test');
unmount();
expect(result.current.getValues()).toEqual({});
});
it('should remain array field values when inputs gets unmounted', () => {
const { result, unmount } = renderHook(() =>
useForm<{ test: string[] }>(),
);
result.current.register('test.0');
result.current.register('test.1');
result.current.register('test.2');
unmount();
expect(result.current.getValues()).toEqual({
test: [undefined, undefined, undefined],
});
});
it('should not unregister errors when unmounted', async () => {
const { result, unmount } = renderHook(() =>
useForm<{
test: string;
}>(),
);
result.current.formState.errors;
result.current.register('test', { required: true });
await act(async () => {
await result.current.handleSubmit(noop)({
preventDefault: noop,
persist: noop,
} as React.SyntheticEvent);
});
expect(result.current.formState.errors.test).toBeDefined();
unmount();
expect(result.current.formState.errors.test).toBeDefined();
});
it('should only unregister errors when unregister method invoked', async () => {
const { result } = renderHook(() =>
useForm<{
test: string;
}>(),
);
result.current.formState.errors;
result.current.register('test', { required: true });
await act(async () => {
await result.current.handleSubmit(noop)({
preventDefault: noop,
persist: noop,
} as React.SyntheticEvent);
});
expect(result.current.formState.errors.test).toBeDefined();
await act(async () => {
result.current.unregister('test');
});
expect(result.current.formState.errors.test).not.toBeDefined();
});
it('should not unregister touched', () => {
let formState: any;
const Component = () => {
const { register, formState: tempFormState } = useForm<{
test: string;
}>();
formState = tempFormState;
formState.touchedFields;
return (
<div>
<input {...register('test', { required: true })} />
</div>
);
};
const { unmount } = render(<Component />);
fireEvent.blur(screen.getByRole('textbox'), {
target: {
value: 'test',
},
});
expect(formState.touchedFields.test).toBeDefined();
expect(formState.isDirty).toBeFalsy();
unmount();
expect(formState.touchedFields.test).toBeDefined();
expect(formState.isDirty).toBeFalsy();
});
it('should update dirtyFields during unregister', () => {
let formState: any;
const Component = () => {
const { register, formState: tempFormState } = useForm<{
test: string;
}>();
formState = tempFormState;
formState.isDirty;
formState.dirtyFields;
return <input {...register('test', { required: true })} />;
};
const { unmount } = render(<Component />);
fireEvent.input(screen.getByRole('textbox'), {
target: {
value: 'test',
},
});
expect(formState.dirtyFields.test).toBeDefined();
expect(formState.isDirty).toBeTruthy();
unmount();
expect(formState.dirtyFields.test).toBeDefined();
expect(formState.isDirty).toBeTruthy();
});
it('should only validate input which are mounted even with shouldUnregister: false', async () => {
const Component = () => {
const [show, setShow] = React.useState(true);
const {
handleSubmit,
register,
formState: { errors },
} = useForm<{
firstName: string;
lastName: string;
}>();
return (
<form onSubmit={handleSubmit(noop)}>
{show && <input {...register('firstName', { required: true })} />}
{errors.firstName && <p>First name is required.</p>}
<input {...register('lastName', { required: true })} />
{errors.lastName && <p>Last name is required.</p>}
<button type={'button'} onClick={() => setShow(!show)}>
toggle
</button>
<button type={'submit'}>submit</button>
</form>
);
};
render(<Component />);
fireEvent.click(screen.getByRole('button', { name: 'submit' }));
expect(await screen.findByText('First name is required.')).toBeVisible();
expect(screen.getByText('Last name is required.')).toBeVisible();
fireEvent.click(screen.getByRole('button', { name: 'toggle' }));
fireEvent.click(screen.getByRole('button', { name: 'submit' }));
expect(screen.getByText('Last name is required.')).toBeVisible();
await waitForElementToBeRemoved(
screen.queryByText('First name is required.'),
);
});
});
describe('when shouldUnregister set to true', () => {
describe('with useFieldArray', () => {
type FormValues = {
test: string;
test1: string;
test2: {
value: string;
}[];
};
const Child = ({
control,
register,
}: {
control: Control<FormValues>;
register: UseFormRegister<FormValues>;
}) => {
const { fields } = useFieldArray({
control,
name: 'test2',
shouldUnregister: true,
});
return (
<>
{fields.map((field, i) => (
<input
key={field.id}
{...register(`test2.${i}.value` as const)}
/>
))}
</>
);
};
it('should remove and unregister inputs when inputs gets unmounted', async () => {
let submittedData: FormValues;
const Component = () => {
const [show, setShow] = React.useState(true);
const { register, handleSubmit, control } = useForm<FormValues>({
shouldUnregister: true,
defaultValues: {
test: 'bill',
test1: 'bill1',
test2: [{ value: 'bill2' }],
},
});
return (
<form onSubmit={handleSubmit((data) => (submittedData = data))}>
{show && (
<>
<input {...register('test')} />
<Controller
control={control}
render={({ field }) => <input {...field} />}
name={'test1'}
/>
<Child control={control} register={register} />
</>
)}
<button>Submit</button>
<button type={'button'} onClick={() => setShow(false)}>
Toggle
</button>
</form>
);
};
render(<Component />);
fireEvent.click(screen.getByRole('button', { name: 'Submit' }));
await waitFor(() =>
expect(submittedData).toEqual({
test: 'bill',
test1: 'bill1',
test2: [
{
value: 'bill2',
},
],
}),
);
fireEvent.click(screen.getByRole('button', { name: 'Toggle' }));
fireEvent.click(screen.getByRole('button', { name: 'Submit' }));
await waitFor(() => expect(submittedData).toEqual({}));
});
});
it('should not mutate defaultValues', () => {
const defaultValues = {
test: {
test: '123',
test1: '1234',
},
};
const Form = () => {
const { register, control } = useForm({
defaultValues,
});
return (
<>
<input {...register('test.test', { shouldUnregister: true })} />
<Controller
control={control}
shouldUnregister
render={() => {
return <input />;
}}
name={'test.test1'}
/>
</>
);
};
const App = () => {
const [show, setShow] = React.useState(true);
return (
<>
{show && <Form />}
<button
type={'button'}
onClick={() => {
setShow(!show);
}}
>
toggle
</button>
</>
);
};
render(<App />);
fireEvent.click(screen.getByRole('button'));
fireEvent.click(screen.getByRole('button'));
fireEvent.click(screen.getByRole('button'));
expect(defaultValues).toEqual({
test: {
test: '123',
test1: '1234',
},
});
});
it('should not register or shallow defaultValues into submission data', () => {
let data = {};
const App = () => {
const { handleSubmit } = useForm({
defaultValues: {
test: 'test',
},
});
return (
<button
onClick={handleSubmit((d) => {
data = d;
})}
>
submit
</button>
);
};
render(<App />);
fireEvent.click(screen.getByRole('button'));
expect(data).toEqual({});
});
it('should keep validation during unmount', async () => {
const onSubmit = jest.fn();
function Component() {
const {
register,
handleSubmit,
watch,
formState: { errors, submitCount },
} = useForm<{
firstName: string;
moreDetail: boolean;
}>({
shouldUnregister: true,
});
const moreDetail = watch('moreDetail');
return (
<>
<p>Submit count: {submitCount}</p>
<form onSubmit={handleSubmit(onSubmit)}>
<input
placeholder="firstName"
{...register('firstName', { maxLength: 3 })}
/>
{errors.firstName && <p>max length</p>}
<input
type="checkbox"
{...register('moreDetail')}
placeholder={'checkbox'}
/>
{moreDetail && <p>show more</p>}
<button>Submit</button>
</form>
</>
);
}
render(<Component />);
fireEvent.change(screen.getByPlaceholderText('firstName'), {
target: {
value: 'testtesttest',
},
});
fireEvent.click(screen.getByRole('button'));
expect(await screen.findByText('Submit count: 1')).toBeVisible();
expect(screen.getByText('max length')).toBeVisible();
fireEvent.click(screen.getByPlaceholderText('checkbox'));
expect(screen.getByText('show more')).toBeVisible();
fireEvent.click(screen.getByRole('button'));
expect(await screen.findByText('Submit count: 2')).toBeVisible();
expect(screen.getByText('max length')).toBeVisible();
});
it('should only unregister inputs when all checkboxes are unmounted', async () => {
let result: Record<string, string> | undefined = undefined;
const Component = () => {
const { register, handleSubmit } = useForm({
shouldUnregister: true,
});
const [radio1, setRadio1] = React.useState(true);
const [radio2, setRadio2] = React.useState(true);
return (
<form
onSubmit={handleSubmit((data) => {
result = data;
})}
>
{radio1 && (
<input {...register('test')} type={'radio'} value={'1'} />
)}
{radio2 && (
<input {...register('test')} type={'radio'} value={'2'} />
)}
<button type={'button'} onClick={() => setRadio1(!radio1)}>
setRadio1
</button>
<button type={'button'} onClick={() => setRadio2(!radio2)}>
setRadio2
</button>
<button>Submit</button>
</form>
);
};
render(<Component />);
fireEvent.click(screen.getByRole('button', { name: 'setRadio1' }));
fireEvent.click(screen.getByRole('button', { name: 'Submit' }));
await waitFor(() => expect(result).toEqual({ test: null }));
fireEvent.click(screen.getByRole('button', { name: 'setRadio2' }));
fireEvent.click(screen.getByRole('button', { name: 'Submit' }));
await waitFor(() => expect(result).toEqual({}));
});
});
describe('when errors changes', () => {
it('should display the latest error message', async () => {
const Form = () => {
const {
register,
setError,
formState: { errors },
} = useForm<{
test: string;
}>();
React.useEffect(() => {
setError('test', {
type: 'data',
message: 'data',
});
}, [setError]);
return (
<div>
<input
{...register('test', {
maxLength: {
message: 'max',
value: 3,
},
})}
placeholder="test"
type="text"
/>
<span role="alert">{errors.test && errors.test.message}</span>
</div>
);
};
render(<Form />);
const span = screen.getByRole('alert');
await waitFor(() => expect(span.textContent).toBe('data'));
fireEvent.input(screen.getByRole('textbox'), {
target: {
value: 'test',
},
});
await waitFor(() => expect(span.textContent).toBe('data'));
});
it('should display the latest error message with errors prop', () => {
const Form = () => {
type FormValues = {
test1: string;
test2: string;
};
const [errorsState, setErrorsState] = React.useState<
FieldErrors<FormValues>
>({
test1: { type: 'test1', message: 'test1 error' },
});
const {
register,
formState: { errors },
} = useForm<FormValues>({
errors: errorsState,
});
return (
<div>
<input {...register('test1')} type="text" />
<span role="alert">{errors.test1 && errors.test1.message}</span>
<input {...register('test2')} type="text" />
<span role="alert">{errors.test2 && errors.test2.message}</span>
<button
onClick={() =>
setErrorsState((errors) => ({
...errors,
test2: { type: 'test2', message: 'test2 error' },
}))
}
>
Set Errors
</button>
</div>
);
};
render(<Form />);
const alert1 = screen.getAllByRole('alert')[0];
expect(alert1.textContent).toBe('test1 error');
const test1Input = screen.getAllByRole('textbox')[0];
expect(test1Input).toHaveFocus();
fireEvent.click(screen.getByRole('button'));
const alert2 = screen.getAllByRole('alert')[1];
expect(alert2.textContent).toBe('test2 error');
expect(test1Input).toHaveFocus();
});
it("shouldn't focus the input of the error defined in the errors prop if shouldFocusError is false", () => {
const formErrors = {
test1: { type: 'test1', message: 'test1 error' },
};
const Form = () => {
type FormValues = {
test1: string;
};
const {
register,
formState: { errors },
} = useForm<FormValues>({
errors: formErrors,
shouldFocusError: false,
});
return (
<div>
<input {...register('test1')} type="text" />
<span role="alert">{errors.test1 && errors.test1.message}</span>
</div>
);
};
const renderRes = render(<Form />);
const alert1 = screen.getAllByRole('alert')[0];
expect(alert1.textContent).toBe('test1 error');
expect(renderRes.baseElement).toHaveFocus();
});
});
describe('handleChangeRef', () => {
const Component = ({
resolver,
mode,
rules = { required: 'required' },
onSubmit = noop,
}: {
resolver?: any;
mode?: 'onBlur' | 'onSubmit' | 'onChange';
rules?: RegisterOptions<{ test: string }, 'test'>;
onSubmit?: () => void;
}) => {
const internationalMethods = useForm<{ test: string }>({
resolver,
mode,
});
const {
register,
handleSubmit,
formState: { errors, isValid, isDirty },
} = internationalMethods;
methods = internationalMethods;
return (
<div>
<input type="text" {...register('test', resolver ? {} : rules)} />
<span role="alert">
{errors?.test?.message && errors.test.message}
</span>
<button onClick={handleSubmit(onSubmit)}>button</button>
<p>{isValid ? 'valid' : 'invalid'}</p>
<p>{isDirty ? 'dirty' : 'pristine'}</p>
</div>
);
};
let methods: UseFormReturn<{ test: string }>;
describe('onSubmit mode', () => {
it('should not contain error if value is valid', async () => {
const onSubmit = jest.fn();
render(<Component onSubmit={onSubmit} />);
fireEvent.input(screen.getByRole('textbox'), {
target: { name: 'test', value: 'test' },
});
fireEvent.click(screen.getByRole('button'));
await waitFor(() => expect(onSubmit).toHaveBeenCalled());
const alert = await screen.findByRole('alert');
expect(alert.textContent).toBe('');
fireEvent.input(screen.getByRole('textbox'), {
target: { name: 'test', value: 'test' },
});
expect(alert.textContent).toBe('');
});
it('should not contain error if name is invalid', async () => {
const onSubmit = jest.fn();
render(<Component onSubmit={onSubmit} />);
fireEvent.input(screen.getByRole('textbox'), {
target: { name: 'test', value: 'test' },
});
fireEvent.click(screen.getByRole('button'));
await waitFor(() => expect(onSubmit).toHaveBeenCalled());
const alert = await screen.findByRole('alert');
expect(alert.textContent).toBe('');
fireEvent.input(screen.getByRole('textbox'), {
target: { name: 'wrongName', value: '' },
});
expect(alert.textContent).toBe('');
});
it('should contain error if value is invalid with revalidateMode is onChange', async () => {
const onSubmit = jest.fn();
render(<Component onSubmit={onSubmit} />);
const input = screen.getByRole('textbox');
fireEvent.input(input, { target: { name: 'test', value: 'test' } });
fireEvent.click(screen.getByRole('button'));
await waitFor(() => expect(onSubmit).toHaveBeenCalled());
expect(screen.getByRole('alert').textContent).toBe('');
fireEvent.input(input, { target: { name: 'test', value: '' } });
await waitFor(() =>
expect(screen.getByRole('alert').textContent).toBe('required'),
);
});
it('should not call reRender method if the current error is the same as the previous error', async () => {
render(<Component />);
const input = screen.getByRole('textbox');
fireEvent.input(input, { target: { name: 'test', value: '' } });
fireEvent.click(screen.getByRole('button'));
await waitFor(() =>
expect(screen.getByRole('alert').textContent).toBe('required'),
);
fireEvent.input(input, { target: { name: 'test', value: '' } });
expect(screen.getByRole('alert').textContent).toBe('required');
});
it('should set name to formState.touchedFields when formState.touchedFields is defined', async () => {
const onSubmit = jest.fn();
render(<Component onSubmit={onSubmit} rules={{}} />);
methods.formState.touchedFields;
fireEvent.click(screen.getByRole('button'));
await waitFor(() => expect(onSubmit).toHaveBeenCalled());
fireEvent.blur(screen.getByRole('textbox'), {
target: { name: 'test', value: 'test' },
});
await waitFor(() =>
expect(methods.formState.touchedFields).toEqual({
test: true,
}),
);
expect(screen.getByRole('alert').textContent).toBe('');
});
// check https://github.com/react-hook-form/react-hook-form/issues/2153
it('should perform correct behavior when reValidateMode is onBlur', async () => {
const onSubmit = jest.fn();
const Component = () => {
const {
register,
handleSubmit,
formState: { errors },
} = useForm<{
test: string;
}>({
reValidateMode: 'onBlur',
});
return (
<form onSubmit={handleSubmit(onSubmit)}>
<input type="text" {...register('test', { required: true })} />
{errors.test && <span role="alert">required</span>}
<button>submit</button>
</form>
);
};
render(<Component />);
fireEvent.input(screen.getByRole('textbox'), {
target: {
value: 'test',
},
});
fireEvent.click(screen.getByRole('button', { name: /submit/i }));
await waitFor(() => expect(onSubmit).toHaveBeenCalled());
fireEvent.input(screen.getByRole('textbox'), {
target: { value: '' },
});
expect(screen.queryByRole('alert')).not.toBeInTheDocument();
fireEvent.blur(screen.getByRole('textbox'));
expect(await screen.findByRole('alert')).toBeVisible();
});
});
describe('onChange', () => {
it('should display error with onChange', async () => {
render(<Component mode="onChange" />);
fireEvent.change(screen.getByRole('textbox'), {
target: {
value: 'test',
},
});
await waitFor(() => screen.getByText('valid'));
fireEvent.change(screen.getByRole('textbox'), {
target: {
value: '',
},
});
await waitFor(() =>
expect(screen.getByRole('alert').textContent).toBe('required'),
);
});
it('should display error with onSubmit', async () => {
render(<Component mode="onChange" />);
fireEvent.click(screen.getByRole('button'));
await waitFor(() =>
expect(screen.getByRole('alert').textContent).toBe('required'),
);
});
it('should not display error with onBlur', async () => {
render(<Component mode="onChange" />);
fireEvent.blur(screen.getByRole('textbox'), {
target: {
value: '',
},
});
expect(screen.getByRole('alert').textContent).toBe('');
});
});
describe('onBlur', () => {
it('should display error with onBlur', async () => {
render(<Component mode="onBlur" />);
fireEvent.blur(screen.getByRole('textbox'), {
target: {
value: '',
},
});
await waitFor(() =>
expect(screen.getByRole('alert').textContent).toBe('required'),
);
});
it('should display error with onSubmit', async () => {
render(<Component mode="onBlur" />);
fireEvent.click(screen.getByRole('button'));
await waitFor(() =>
expect(screen.getByRole('alert').textContent).toBe('required'),
);
});
it('should not display error with onChange', async () => {
render(<Component mode="onBlur" />);
fireEvent.input(screen.getByRole('textbox'), {
target: {
value: '',
},
});
expect(screen.getByRole('alert').textContent).toBe('');
});
});
describe('with watch', () => {
it('should be return undefined or null value', () => {
const { result } = renderHook(() =>
useForm<{
test: string | null;
test1?: string;
}>(),
);
result.current.register('test');
result.current.register('test1');
act(() => {
result.current.setValue('test', null);
});
act(() => {
result.current.setValue('test1', undefined);
});
const test = result.current.watch('test');
const test1 = result.current.watch('test1');
expect(test).toBeNull();
expect(test1).toBeUndefined();
});
it('should be called reRender method if isWatchAllRef is true', async () => {
let watchedField: any;
const Component = () => {
const { register, handleSubmit, watch } = useForm<{
test: string;
}>();
watchedField = watch();
return (
<form onSubmit={handleSubmit(noop)}>
<input {...register('test')} />
<button>button</button>
</form>
);
};
render(<Component />);
fireEvent.input(screen.getByRole('textbox'), {
target: { name: 'test', value: 'test' },
});
expect(watchedField).toEqual({ test: 'test' });
});
it('should be called reRender method if field is watched', async () => {
let watchedField: any;
const Component = () => {
const { register, handleSubmit, watch } = useForm<{
test: string;
}>();
watchedField = watch('test');
return (
<form onSubmit={handleSubmit(noop)}>
<input {...register('test')} />
<button>button</button>
</form>
);
};
render(<Component />);
fireEvent.input(screen.getByRole('textbox'), {
target: { name: 'test', value: 'test' },
});
expect(watchedField).toBe('test');
});
it('should be called reRender method if array field is watched', async () => {
let watchedField: any;
const Component = () => {
const { register, handleSubmit, watch } = useForm<{
test: string[];
}>();
watchedField = watch('test');
return (
<form onSubmit={handleSubmit(noop)}>
<input {...register('test.0')} />
<input {...register('test.1')} />
<input {...register('test.2')} />
<button>button</button>
</form>
);
};
render(<Component />);
fireEvent.input(screen.getAllByRole('textbox')[0], {
target: { name: 'test.0', value: 'test' },
});
expect(watchedField).toEqual(['test', '', '']);
});
});
describe('with resolver', () => {
it('should contain error if value is invalid with resolver', async () => {
const resolver = jest.fn(async (data: any) => {
if (data.test) {
return { values: data, errors: {} };
}
return {
values: data,
errors: {
test: {
message: 'resolver error',
},
},
};
});
render(<Component resolver={resolver} mode="onChange" />);
methods.formState.isValid;
fireEvent.input(screen.getByRole('textbox'), {
target: { name: 'test', value: 'test' },
});
expect(await screen.findByText('dirty')).toBeVisible();
expect(resolver).toHaveBeenCalled();
expect(screen.getByRole('alert').textContent).toBe('');
expect(methods.formState.isValid).toBeTruthy();
fireEvent.input(screen.getByRole('textbox'), {
target: { name: 'test', value: '' },
});
await waitFor(() => {
expect(screen.getByRole('alert')).toHaveTextContent('resolver error');
});
expect(resolver).toHaveBeenCalled();
expect(methods.formState.isValid).toBeFalsy();
});
it('with sync resolver it should contain error if value is invalid with resolver', async () => {
const resolver = jest.fn((data: any) => {
if (data.test) {
return { values: data, errors: {} };
}
return {
values: data,
errors: {
test: {
message: 'resolver error',
},
},
};
});
render(<Component resolver={resolver} mode="onChange" />);
methods.formState.isValid;
fireEvent.input(screen.getByRole('textbox'), {
target: { name: 'test', value: 'test' },
});
await waitFor(() => expect(methods.formState.isValid).toBe(true));
expect(screen.getByRole('alert').textContent).toBe('');
fireEvent.input(screen.getByRole('textbox'), {
target: { name: 'test', value: '' },
});
expect(await screen.findByText('invalid')).toBeVisible();
expect(methods.formState.isValid).toBe(false);
expect(screen.getByRole('alert')).toHaveTextContent('resolver error');
expect(resolver).toHaveBeenCalled();
});
it('should make isValid change to false if it contain error that is not related name with onChange mode', async () => {
const resolver = jest.fn(async (data: any) => {
if (data.test) {
return { values: data, errors: {} };
}
return {
values: data,
errors: {
notRelatedName: {
message: 'resolver error',
},
},
};
});
render(<Component resolver={resolver} mode="onChange" />);
methods.formState.isValid;
fireEvent.input(screen.getByRole('textbox'), {
target: { name: 'test', value: 'test' },
});
await waitFor(() => expect(methods.formState.isValid).toBeTruthy());
expect(screen.getByRole('alert').textContent).toBe('');
fireEvent.input(screen.getByRole('textbox'), {
target: { name: 'test', value: '' },
});
await waitFor(() => expect(methods.formState.isValid).toBeFalsy());
expect(resolver).toHaveBeenCalled();
expect(screen.getByRole('alert').textContent).toBe('');
});
it("should call the resolver with the field being validated when an input's value change", async () => {
const resolver = jest.fn((values: any) => ({ values, errors: {} }));
const onSubmit = jest.fn();
render(
<Component resolver={resolver} onSubmit={onSubmit} mode="onChange" />,
);
expect(await screen.findByText('valid')).toBeVisible();
const input = screen.getByRole('textbox');
expect(resolver).toHaveBeenCalledWith(
{
test: '',
},
undefined,
{
criteriaMode: undefined,
fields: {
test: {
mount: true,
name: 'test',
ref: input,
},
},
names: ['test'],
shouldUseNativeValidation: undefined,
},
);
resolver.mockClear();
fireEvent.input(input, {
target: { name: 'test', value: 'test' },
});
expect(await screen.findByText('dirty')).toBeVisible();
expect(resolver).toHaveBeenCalledWith(
{
test: 'test',
},
undefined,
{
criteriaMode: undefined,
fields: {
test: {
mount: true,
name: 'test',
ref: input,
},
},
names: ['test'],
shouldUseNativeValidation: undefined,
},
);
resolver.mockClear();
fireEvent.click(screen.getByText(/button/i));
await waitFor(() => expect(onSubmit).toHaveBeenCalled());
expect(resolver).toHaveBeenCalledWith(
{
test: 'test',
},
undefined,
{
criteriaMode: undefined,
fields: {
test: {
mount: true,
name: 'test',
ref: input,
},
},
names: ['test'],
shouldUseNativeValidation: undefined,
},
);
});
it('should call the resolver with the field being validated when `trigger` is called', async () => {
const resolver = jest.fn((values: any) => ({ values, errors: {} }));
const defaultValues = { test: { sub: 'test' }, test1: 'test1' };
const { result } = renderHook(() =>
useForm<typeof defaultValues>({
mode: VALIDATION_MODE.onChange,
resolver,
defaultValues,
}),
);
expect(resolver).not.toHaveBeenCalled();
await act(async () => {
await result.current.register('test.sub');
await result.current.register('test1');
});
await act(async () => {
result.current.trigger('test.sub');
});
const fields = {
test: {
sub: {
mount: true,
name: 'test.sub',
ref: { name: 'test.sub' },
},
},
test1: {
mount: true,
name: 'test1',
ref: {
name: 'test1',
},
},
};
expect(resolver).toHaveBeenCalledWith(defaultValues, undefined, {
criteriaMode: undefined,
fields: { test: fields.test },
names: ['test.sub'],
});
await act(async () => {
result.current.trigger();
});
expect(resolver).toHaveBeenNthCalledWith(2, defaultValues, undefined, {
criteriaMode: undefined,
fields,
names: ['test.sub', 'test1'],
});
await act(async () => {
result.current.trigger(['test.sub', 'test1']);
});
expect(resolver).toHaveBeenNthCalledWith(3, defaultValues, undefined, {
criteriaMode: undefined,
fields,
names: ['test.sub', 'test1'],
});
});
});
});
describe('when mode or reValidateMode changes', () => {
it('should use updated mode and reValidateMode inside of onChange handler', async () => {
const resolver = jest.fn(async (data: any) => ({
values: data,
errors: {},
}));
const Form = () => {
const [mode, setMode] = React.useState<Mode>('onChange');
const [reValidateMode, setReValidateMode] =
React.useState<Exclude<Mode, 'onTouched' | 'all'>>('onBlur');
const { register, handleSubmit } = useForm<{ test: string }>({
mode,
reValidateMode,
resolver,
});
return (
<form onSubmit={handleSubmit(noop)}>
<input {...register('test')} type="text" />
<button
type="button"
onClick={() => {
setMode('onTouched');
setReValidateMode('onChange');
}}
>
Update Validation Mode
</button>
<input type="submit" />
</form>
);
};
render(<Form />);
fireEvent.click(
screen.getByRole('button', { name: /update validation mode/i }),
);
fireEvent.input(screen.getByRole('textbox'), {
target: {
value: 'test',
},
});
expect(resolver).toHaveBeenCalledTimes(0);
fireEvent.blur(screen.getByRole('textbox'), {
target: {
value: 'test',
},
});
expect(resolver).toHaveBeenCalledTimes(1);
fireEvent.input(screen.getByRole('textbox'), {
target: {
value: 'test1',
},
});
expect(resolver).toHaveBeenCalledTimes(2);
fireEvent.click(screen.getByRole('button', { name: /submit/i }));
await waitFor(() => expect(resolver).toHaveBeenCalledTimes(3));
fireEvent.blur(screen.getByRole('textbox'), {
target: {
value: 'test1',
},
});
expect(resolver).toHaveBeenCalledTimes(3);
fireEvent.input(screen.getByRole('textbox'), {
target: {
value: 'test12',
},
});
expect(resolver).toHaveBeenCalledTimes(4);
});
});
describe('updateValid', () => {
it('should be called resolver with default values if default value is defined', async () => {
type FormValues = {
test: string;
};
const resolver = jest.fn(async (data: FormValues) => {
return {
values: data,
errors: {},
};
});
const { result } = renderHook(() =>
useForm<FormValues>({
resolver,
defaultValues: { test: 'default' },
}),
);
const { ref } = result.current.register('test');
isFunction(ref) &&
ref({
target: {
value: '',
},
});
await act(async () => {
await result.current.trigger();
});
expect(resolver).toHaveBeenCalledWith(
{
test: 'default',
},
undefined,
{
criteriaMode: undefined,
fields: {
test: {
mount: true,
name: 'test',
ref: {
target: {
value: '',
},
value: 'default',
},
},
},
names: ['test'],
},
);
});
it('should be called resolver with field values if value is undefined', async () => {
type FormValues = {
test: string;
};
const resolver = jest.fn(async (data: FormValues) => {
return {
values: data,
errors: {},
};
});
const { result } = renderHook(() =>
useForm<FormValues>({
resolver,
}),
);
result.current.register('test');
result.current.setValue('test', 'value');
result.current.trigger();
expect(resolver).toHaveBeenCalledWith({ test: 'value' }, undefined, {
criteriaMode: undefined,
fields: {
test: {
mount: true,
name: 'test',
ref: { name: 'test', value: 'value' },
},
},
names: ['test'],
});
});
});
describe('mode with onTouched', () => {
it('should validate form only when input is been touched', async () => {
const Component = () => {
const {
register,
formState: { errors },
} = useForm<{
test: string;
}>({
mode: 'onTouched',
});
return (
<>
<input
type="text"
{...register('test', { required: 'This is required.' })}
/>
{errors.test?.message}
</>
);
};
render(<Component />);
const input = screen.getByRole('textbox');
fireEvent.focus(input);
fireEvent.blur(input);
expect(await screen.findByText('This is required.')).toBeVisible();
fireEvent.input(input, {
target: {
value: 'test',
},
});
await waitFor(() =>
expect(screen.queryByText('This is required.')).not.toBeInTheDocument(),
);
fireEvent.input(input, {
target: {
value: '',
},
});
expect(await screen.findByText('This is required.')).toBeVisible();
});
it('should validate onFocusout event', async () => {
const Component = () => {
const {
register,
formState: { errors },
} = useForm<{
test: string;
}>({
mode: 'onTouched',
});
return (
<>
<input
type="text"
{...register('test', { required: 'This is required.' })}
/>
{errors.test?.message}
</>
);
};
render(<Component />);
const input = screen.getByRole('textbox');
fireEvent.focus(input);
fireEvent.focusOut(input);
expect(await screen.findByText('This is required.')).toBeVisible();
fireEvent.input(input, {
target: {
value: 'test',
},
});
await waitFor(() =>
expect(screen.queryByText('This is required.')).not.toBeInTheDocument(),
);
fireEvent.input(input, {
target: {
value: '',
},
});
expect(await screen.findByText('This is required.')).toBeVisible();
});
});
describe('with schema validation', () => {
it('should trigger and clear errors for group errors object', async () => {
let errorsObject = {};
const Component = () => {
const {
formState: { errors },
register,
handleSubmit,
} = useForm<{
checkbox: string[];
}>({
mode: 'onChange',
resolver: (data) => {
return {
errors: {
...(data.checkbox.every((value) => !value)
? { checkbox: { type: 'error', message: 'wrong' } }
: {}),
},
values: {},
};
},
});
errorsObject = errors;
return (
<form onSubmit={handleSubmit(noop)}>
{[1, 2, 3].map((value, index) => (
<div key={`test.${index}`}>
<label
htmlFor={`checkbox.${index}`}
>{`checkbox.${index}`}</label>
<input
type={'checkbox'}
key={index}
id={`checkbox.${index}`}
{...register(`checkbox.${index}` as const)}
value={value}
/>
</div>
))}
<button>Submit</button>
</form>
);
};
render(<Component />);
fireEvent.click(screen.getByLabelText('checkbox.0'));
fireEvent.click(screen.getByLabelText('checkbox.0'));
await waitFor(() =>
expect(errorsObject).toEqual({
checkbox: { type: 'error', message: 'wrong' },
}),
);
fireEvent.click(screen.getByLabelText('checkbox.0'));
await waitFor(() => expect(errorsObject).toEqual({}));
fireEvent.click(screen.getByLabelText('checkbox.0'));
fireEvent.click(screen.getByRole('button'));
await waitFor(() =>
expect(errorsObject).toEqual({
checkbox: { type: 'error', message: 'wrong' },
}),
);
fireEvent.click(screen.getByLabelText('checkbox.0'));
await waitFor(() => expect(errorsObject).toEqual({}));
});
it('should not clear errors for non checkbox parent inputs', async () => {
let errorsObject = {};
const Component = () => {
const {
formState: { errors },
register,
handleSubmit,
} = useForm<{
checkbox: [{ test: string }, { test1: string }];
}>({
mode: 'onChange',
resolver: (data) => {
return {
errors: {
...(!data.checkbox[0].test || !data.checkbox[1].test1
? {
checkbox: [
{
...(!data.checkbox[0].test
? { test: { type: 'error', message: 'wrong' } }
: {}),
...(!data.checkbox[1].test1
? { test1: { type: 'error', message: 'wrong' } }
: {}),
},
],
}
: {}),
},
values: {},
};
},
});
errorsObject = errors;
return (
<form onSubmit={handleSubmit(noop)}>
<input type={'checkbox'} {...register(`checkbox.0.test`)} />
<input {...register(`checkbox.1.test1`)} />
<button>Submit</button>
</form>
);
};
render(<Component />);
fireEvent.click(screen.getByRole('button'));
await waitFor(() =>
expect(errorsObject).toEqual({
checkbox: [
{
test: { type: 'error', message: 'wrong' },
test1: { type: 'error', message: 'wrong' },
},
],
}),
);
fireEvent.click(screen.getByRole('checkbox'));
fireEvent.click(screen.getByRole('button'));
await waitFor(() =>
expect(errorsObject).toEqual({
checkbox: [
{
test1: { type: 'error', message: 'wrong' },
},
],
}),
);
});
it('should have formState.isValid equals true with defined default values after executing resolver', async () => {
const Toggle = () => {
const [toggle, setToggle] = React.useState(false);
const { register, formState } = useForm({
defaultValues: { test: 'Test' },
mode: 'onChange',
resolver: async (values) => {
if (!values.test) {
return {
values: {},
errors: {
test: {
type: 'required',
},
},
};
}
return {
values,
errors: {},
};
},
});
return (
<>
<button onClick={() => setToggle(!toggle)}>Toggle</button>
{toggle && <input id="test" {...register('test')} />}
<button disabled={!formState.isValid}>Submit</button>
</>
);
};
render(<Toggle />);
const toggle = () => fireEvent.click(screen.getByText('Toggle'));
toggle();
await waitFor(() => expect(screen.getByText('Submit')).toBeEnabled());
toggle();
toggle();
expect(screen.getByText('Submit')).toBeEnabled();
});
});
describe('control', () => {
it('does not change across re-renders', () => {
let control;
const Component = () => {
const form = useForm<{
test: string;
}>();
control = form.control;
return (
<>
<input type="text" {...form.register('test')} />
</>
);
};
const { rerender } = render(<Component />);
const firstRenderControl = control;
rerender(<Component />);
const secondRenderControl = control;
expect(Object.is(firstRenderControl, secondRenderControl)).toBe(true);
});
});
describe('when input is not registered', () => {
it('trigger should not throw warn', async () => {
const { result } = renderHook(() =>
useForm<{
test: string;
}>(),
);
await act(async () =>
expect(await result.current.trigger('test')).toBeTruthy(),
);
});
});
it('should update isValidating form and field states correctly', async () => {
jest.useFakeTimers();
let formState = {} as FormState<FieldValues>;
let getFieldState = {} as UseFormGetFieldState<FieldValues>;
const App = () => {
const [stateValidation, setStateValidation] = React.useState(false);
const {
register,
formState: tmpFormState,
getFieldState: tmpGetFieldState,
} = useForm({ mode: 'all' });
formState = tmpFormState;
getFieldState = tmpGetFieldState;
formState.isValidating;
return (
<div>
<p>stateValidation: {String(stateValidation)}</p>
<form>
<input
{...register('lastName', {
required: true,
validate: () => {
setStateValidation(true);
return new Promise((resolve) => {
setTimeout(() => {
setStateValidation(false);
resolve(true);
}, 5000);
});
},
})}
placeholder="async"
/>
<input
{...register('firstName', { required: true })}
placeholder="required"
/>
</form>
</div>
);
};
render(<App />);
fireEvent.change(screen.getByPlaceholderText('async'), {
target: { value: 'test' },
});
fireEvent.change(screen.getByPlaceholderText('required'), {
target: { value: 'test' },
});
expect(formState.isValidating).toBe(true);
expect(formState.validatingFields).toStrictEqual({
lastName: true,
firstName: true,
});
expect(getFieldState('lastName').isValidating).toBe(true);
expect(getFieldState('firstName').isValidating).toBe(true);
screen.getByText('stateValidation: true');
await act(async () => {
jest.advanceTimersByTime(1000);
});
expect(formState.isValidating).toBe(true);
expect(formState.validatingFields).toStrictEqual({
lastName: true,
});
expect(getFieldState('lastName').isValidating).toBe(true);
expect(getFieldState('firstName').isValidating).toBe(false);
screen.getByText('stateValidation: true');
await act(async () => {
jest.advanceTimersByTime(4000);
});
expect(formState.isValidating).toBe(false);
expect(formState.validatingFields).toStrictEqual({});
expect(getFieldState('lastName').isValidating).toBe(false);
expect(getFieldState('firstName').isValidating).toBe(false);
screen.getByText('stateValidation: false');
});
it('should correctly handle multiple async validation triggers', async () => {
jest.useFakeTimers();
let formState = {} as FormState<FieldValues>;
let getFieldState = {} as UseFormGetFieldState<FieldValues>;
const App = () => {
const [stateValidation, setStateValidation] = React.useState(false);
const {
register,
formState: tmpFormState,
getFieldState: tmpGetFieldState,
} = useForm({ mode: 'onChange' });
formState = tmpFormState;
getFieldState = tmpGetFieldState;
formState.validatingFields;
formState.isDirty;
return (
<div>
<p>stateValidation: {String(stateValidation)}</p>
<form>
<input
{...register('lastName', {
required: true,
validate: () => {
setStateValidation(true);
return new Promise((resolve) => {
setTimeout(() => {
setStateValidation(false);
resolve(true);
}, 2000);
});
},
})}
placeholder="async"
/>
</form>
</div>
);
};
render(<App />);
expect(formState.validatingFields).toStrictEqual({});
expect(formState.isDirty).toStrictEqual(false);
expect(formState.dirtyFields).toStrictEqual({});
expect(getFieldState('lastName').isDirty).toStrictEqual(false);
fireEvent.change(screen.getByPlaceholderText('async'), {
target: { value: 'test' },
});
expect(formState.isDirty).toStrictEqual(true);
expect(formState.dirtyFields).toStrictEqual({ lastName: true });
expect(getFieldState('lastName').isDirty).toStrictEqual(true);
await act(async () => {
jest.advanceTimersByTime(1000);
});
expect(formState.validatingFields).toStrictEqual({ lastName: true });
fireEvent.change(screen.getByPlaceholderText('async'), {
target: { value: 'test1' },
});
expect(formState.validatingFields).toStrictEqual({ lastName: true });
expect(getFieldState('lastName').isValidating).toBe(true);
await act(async () => {
jest.advanceTimersByTime(1500);
});
expect(formState.validatingFields).toStrictEqual({});
expect(getFieldState('lastName').isValidating).toBe(false);
});
it('should update isValidating to true when using with resolver', async () => {
jest.useFakeTimers();
let formState = {} as FormState<FieldValues>;
let getFieldState = {} as UseFormGetFieldState<FieldValues>;
const App = () => {
const {
register,
formState: tmpFormState,
getFieldState: tmpGetFieldState,
} = useForm<{
firstName: string;
lastName: string;
}>({
mode: 'all',
defaultValues: {
lastName: '',
firstName: '',
},
resolver: async () => {
await sleep(2000);
return {
errors: {},
values: {},
};
},
});
getFieldState = tmpGetFieldState;
formState = tmpFormState;
formState.isValidating;
return (
<div>
<input {...register('lastName')} placeholder="async" />
<input {...register('firstName')} placeholder="required" />
</div>
);
};
render(<App />);
fireEvent.change(screen.getByPlaceholderText('async'), {
target: { value: 'test' },
});
fireEvent.change(screen.getByPlaceholderText('async'), {
target: { value: 'test1' },
});
fireEvent.change(screen.getByPlaceholderText('required'), {
target: { value: 'test2' },
});
fireEvent.change(screen.getByPlaceholderText('required'), {
target: { value: 'test3' },
});
expect(formState.isValidating).toBe(true);
expect(formState.validatingFields).toStrictEqual({
lastName: true,
firstName: true,
});
expect(getFieldState('lastName').isValidating).toBe(true);
expect(getFieldState('firstName').isValidating).toBe(true);
await act(async () => {
jest.runAllTimers();
});
expect(formState.isValidating).toBe(false);
expect(formState.validatingFields).toStrictEqual({});
expect(getFieldState('lastName').isValidating).toBe(false);
expect(getFieldState('firstName').isValidating).toBe(false);
});
it('should remove field from validatingFields on unregister', async () => {
jest.useFakeTimers();
let unregister: UseFormUnregister<FieldValues>;
let formState = {} as FormState<FieldValues>;
const App = () => {
const {
register,
unregister: tmpUnregister,
formState: tmpFormState,
} = useForm({ mode: 'all' });
unregister = tmpUnregister;
formState = tmpFormState;
formState.validatingFields;
return (
<div>
<form>
<input
{...register('firstName', {
required: true,
})}
placeholder="firstName"
/>
</form>
</div>
);
};
render(<App />);
fireEvent.change(screen.getByPlaceholderText('firstName'), {
target: { value: 'test' },
});
expect(formState.validatingFields).toEqual({ firstName: true });
await act(async () => {
unregister('firstName');
jest.runAllTimers();
});
expect(formState.validatingFields).toEqual({});
});
it('should update defaultValues async', async () => {
const App = () => {
const {
register,
formState: { isLoading },
} = useForm<{
test: string;
}>({
defaultValues: async () => {
await sleep(100);
return {
test: 'test',
};
},
});
return (
<form>
<input {...register('test')} />
<p>{isLoading ? 'loading...' : 'done'}</p>
</form>
);
};
render(<App />);
await waitFor(() => {
screen.getByText('loading...');
});
await waitFor(() => {
expect((screen.getByRole('textbox') as HTMLInputElement).value).toEqual(
'test',
);
});
await waitFor(() => {
screen.getByText('done');
});
});
it('should update async default values for controlled components', async () => {
const App = () => {
const { control } = useForm<{
test: string;
}>({
defaultValues: async () => {
await sleep(100);
return {
test: 'test',
};
},
});
return (
<form>
<Controller
control={control}
render={({ field }) => <input {...field} />}
defaultValue=""
name={'test'}
/>
</form>
);
};
render(<App />);
await waitFor(() => {
expect((screen.getByRole('textbox') as HTMLInputElement).value).toEqual(
'test',
);
});
});
it('should update async form values', async () => {
type FormValues = {
test: string;
};
function Loader() {
const [values, setValues] = React.useState<FormValues>({
test: '',
});
const loadData = React.useCallback(async () => {
await sleep(100);
setValues({
test: 'test',
});
}, []);
React.useEffect(() => {
loadData();
}, [loadData]);
return <App values={values} />;
}
const App = ({ values }: { values: FormValues }) => {
const { register } = useForm({
values,
});
return (
<form>
<input {...register('test')} />
</form>
);
};
render(<Loader />);
await waitFor(() => {
expect((screen.getByRole('textbox') as HTMLInputElement).value).toEqual(
'test',
);
});
});
it('should only update async form values which are not interacted', async () => {
type FormValues = {
test: string;
test1: string;
};
function Loader() {
const [values, setValues] = React.useState<FormValues>({
test: '',
test1: '',
});
const loadData = React.useCallback(async () => {
await sleep(100);
setValues({
test: 'test',
test1: 'data',
});
}, []);
React.useEffect(() => {
loadData();
}, [loadData]);
return <App values={values} />;
}
const App = ({ values }: { values: FormValues }) => {
const { register } = useForm({
values,
resetOptions: {
keepDirtyValues: true,
},
});
return (
<form>
<input {...register('test')} />
<input {...register('test1')} />
</form>
);
};
render(<Loader />);
fireEvent.change(screen.getAllByRole('textbox')[0], {
target: {
value: 'test1',
},
});
await waitFor(() => {
expect(
(screen.getAllByRole('textbox')[0] as HTMLInputElement).value,
).toEqual('test1');
});
await waitFor(() => {
expect(
(screen.getAllByRole('textbox')[1] as HTMLInputElement).value,
).toEqual('data');
});
});
it('should not update isLoading when literal defaultValues are provided', async () => {
const { result } = renderHook(() =>
useForm({ defaultValues: { test: 'default' } }),
);
expect(result.current.formState.isLoading).toBe(false);
});
it('should update form values when values updates even with the same values', async () => {
type FormValues = {
firstName: string;
};
function App() {
const [firstName, setFirstName] = React.useState('C');
const values = React.useMemo(() => ({ firstName }), [firstName]);
const {
register,
formState: { isDirty },
watch,
} = useForm<FormValues>({
defaultValues: {
firstName: 'C',
},
values,
resetOptions: { keepDefaultValues: true },
});
const formValues = watch();
return (
<form>
<button type="button" onClick={() => setFirstName('A')}>
1
</button>
<button type="button" onClick={() => setFirstName('B')}>
2
</button>
<button type="button" onClick={() => setFirstName('C')}>
3
</button>
<input {...register('firstName')} placeholder="First Name" />
<p>{isDirty ? 'dirty' : 'pristine'}</p>
<p>{formValues.firstName}</p>
<input type="submit" />
</form>
);
}
render(<App />);
fireEvent.click(screen.getByRole('button', { name: '1' }));
await waitFor(() => {
screen.getByText('A');
screen.getByText('dirty');
});
fireEvent.click(screen.getByRole('button', { name: '2' }));
await waitFor(() => {
screen.getByText('B');
screen.getByText('dirty');
});
fireEvent.click(screen.getByRole('button', { name: '3' }));
await waitFor(() => {
screen.getByText('C');
screen.getByText('pristine');
});
});
it('should keep defaultValues if set keep default values is true on reset option', async () => {
type FormValues = {
firstName: string;
};
function App() {
const { register, formState } = useForm<FormValues>({
defaultValues: {
firstName: 'Alex',
},
values: {
firstName: 'John',
},
resetOptions: { keepDefaultValues: true },
});
return (
<form>
<input {...register('firstName')} placeholder="First Name" />
<div>{String(formState.isDirty)}</div>
<input type="submit" />
</form>
);
}
render(<App />);
fireEvent.change(screen.getByRole('textbox'), {
target: { value: 'John' },
});
screen.getByText('true');
fireEvent.change(screen.getByRole('textbox'), {
target: { value: 'Alex' },
});
screen.getByText('false');
});
it('should change defaultValues if not reset options presented', async () => {
type FormValues = {
firstName: string;
};
function App() {
const { register, formState } = useForm<FormValues>({
defaultValues: {
firstName: 'Alex',
},
values: {
firstName: 'John',
},
});
return (
<form>
<input {...register('firstName')} placeholder="First Name" />
<div>{String(formState.isDirty)}</div>
<input type="submit" />
</form>
);
}
render(<App />);
fireEvent.change(screen.getByRole('textbox'), {
target: { value: 'Alex' },
});
screen.getByText('true');
fireEvent.change(screen.getByRole('textbox'), {
target: { value: 'John' },
});
screen.getByText('false');
});
it('should disable the entire form inputs', async () => {
function App() {
const { register } = useForm({
disabled: true,
defaultValues: {
lastName: '',
firstName: '',
},
});
return (
<form>
<input {...register('firstName')} placeholder="firstName" />
<input {...register('lastName')} placeholder="lastName" />
</form>
);
}
render(<App />);
await waitFor(() => {
expect(
(screen.getByPlaceholderText('firstName') as HTMLInputElement).disabled,
).toBeTruthy();
expect(
(screen.getByPlaceholderText('lastName') as HTMLInputElement).disabled,
).toBeTruthy();
});
});
it('should disable the entire form', () => {
const App = () => {
const [disabled, setDisabled] = useState(false);
const { register, control } = useForm({
disabled,
});
return (
<form>
<input
type={'checkbox'}
{...register('checkbox')}
data-testid={'checkbox'}
/>
<input type={'radio'} {...register('radio')} data-testid={'radio'} />
<input type={'range'} {...register('range')} data-testid={'range'} />
<select {...register('select')} data-testid={'select'} />
<textarea {...register('textarea')} data-testid={'textarea'} />
<Controller
control={control}
render={({ field }) => {
return (
<input disabled={field.disabled} data-testid={'controller'} />
);
}}
name="test"
/>
<button
type="button"
onClick={() => {
setDisabled(!disabled);
}}
>
Submit
</button>
</form>
);
};
render(<App />);
fireEvent.click(screen.getByRole('button'));
expect(screen.getByTestId('checkbox')).toHaveAttribute('disabled');
expect(screen.getByTestId('radio')).toHaveAttribute('disabled');
expect(screen.getByTestId('range')).toHaveAttribute('disabled');
expect(screen.getByTestId('select')).toHaveAttribute('disabled');
expect(screen.getByTestId('textarea')).toHaveAttribute('disabled');
expect(screen.getByTestId('controller')).toHaveAttribute('disabled');
fireEvent.click(screen.getByRole('button'));
expect(screen.getByTestId('checkbox')).not.toBeDisabled();
expect(screen.getByTestId('radio')).not.toBeDisabled();
expect(screen.getByTestId('range')).not.toBeDisabled();
expect(screen.getByTestId('select')).not.toBeDisabled();
expect(screen.getByTestId('textarea')).not.toBeDisabled();
expect(screen.getByTestId('controller')).not.toBeDisabled();
});
it('should disable form inputs separately from its form', async () => {
function App() {
const { register } = useForm({
disabled: false,
defaultValues: {
lastName: '',
firstName: '',
},
});
return (
<form>
<input
{...register('firstName', { disabled: true })}
placeholder="firstName"
/>
<input
{...register('lastName', { disabled: false })}
placeholder="lastName"
/>
</form>
);
}
render(<App />);
await waitFor(() => {
expect(
(screen.getByPlaceholderText('firstName') as HTMLInputElement).disabled,
).toBeTruthy();
expect(
(screen.getByPlaceholderText('lastName') as HTMLInputElement).disabled,
).toBeFalsy();
});
});
it('should be able to disable the entire form', async () => {
const App = () => {
const [disabled, setDisabled] = useState(false);
const { register, handleSubmit } = useForm({
disabled,
});
return (
<form
onSubmit={handleSubmit(async () => {
setDisabled(true);
await sleep(100);
setDisabled(false);
})}
>
<input
type={'checkbox'}
{...register('checkbox')}
data-testid={'checkbox'}
/>
<input type={'radio'} {...register('radio')} data-testid={'radio'} />
<input type={'range'} {...register('range')} data-testid={'range'} />
<select {...register('select')} data-testid={'select'} />
<textarea {...register('textarea')} data-testid={'textarea'} />
<button>Submit</button>
</form>
);
};
render(<App />);
expect(
(screen.getByTestId('textarea') as HTMLTextAreaElement).disabled,
).toBeFalsy();
expect(
(screen.getByTestId('range') as HTMLInputElement).disabled,
).toBeFalsy();
expect(
(screen.getByTestId('select') as HTMLInputElement).disabled,
).toBeFalsy();
expect(
(screen.getByTestId('textarea') as HTMLInputElement).disabled,
).toBeFalsy();
fireEvent.click(screen.getByRole('button'));
await waitFor(() => {
expect(
(screen.getByTestId('textarea') as HTMLTextAreaElement).disabled,
).toBeTruthy();
expect(
(screen.getByTestId('range') as HTMLInputElement).disabled,
).toBeTruthy();
expect(
(screen.getByTestId('select') as HTMLInputElement).disabled,
).toBeTruthy();
expect(
(screen.getByTestId('textarea') as HTMLInputElement).disabled,
).toBeTruthy();
});
await waitFor(() => {
expect(
(screen.getByTestId('textarea') as HTMLTextAreaElement).disabled,
).toBeFalsy();
expect(
(screen.getByTestId('range') as HTMLInputElement).disabled,
).toBeFalsy();
expect(
(screen.getByTestId('select') as HTMLInputElement).disabled,
).toBeFalsy();
expect(
(screen.getByTestId('textarea') as HTMLInputElement).disabled,
).toBeFalsy();
});
});
it('should allow to submit a form with disabled form fields', async () => {
function App() {
const { register, getFieldState, formState, handleSubmit } = useForm();
return (
<form onSubmit={handleSubmit(() => {})}>
<input
{...register('firstName', { disabled: true, required: true })}
placeholder="firstName"
/>
<p>
{getFieldState('firstName', formState).error
? 'has error'
: 'no error'}
</p>
<input type="submit" value="Submit" />
</form>
);
}
render(<App />);
await act(() => {
fireEvent.click(screen.getByRole('button'));
});
await waitFor(() => {
expect(
(screen.getByPlaceholderText('firstName') as HTMLInputElement).disabled,
).toBeTruthy();
expect(
screen.getByText('no error') as HTMLInputElement,
).toBeInTheDocument();
});
});
describe('when given formControl', () => {
it('accepts default values', async () => {
type FormValues = {
firstName: string;
};
const { register, handleSubmit, formControl } =
createFormControl<FormValues>();
function FormComponent({
onSubmit,
defaultValues,
}: {
defaultValues: FormValues;
onSubmit: SubmitHandler<FormValues>;
}) {
useForm({
formControl,
defaultValues,
});
return (
<form onSubmit={handleSubmit(onSubmit)}>
<input {...register('firstName')} placeholder="First Name" />
<input type="submit" />
</form>
);
}
function App() {
const [state, setState] = React.useState('');
return (
<div>
<FormComponent
defaultValues={{ firstName: 'Emilia' }}
onSubmit={(data) => {
setState(JSON.stringify(data));
}}
/>
<pre>{state}</pre>
</div>
);
}
render(<App />);
const input = screen.getAllByRole<HTMLInputElement>('textbox')[0];
expect(input.value).toBe('Emilia');
fireEvent.input(input, { target: { value: 'abc' } });
expect(input.value).toBe('abc');
});
});
});