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import shouldRenderFormState from '../../logic/shouldRenderFormState';
import type { ReadFormState } from '../../types';
describe('shouldRenderFormState', () => {
const updateFormState = jest.fn();
beforeEach(() => {
updateFormState.mockClear();
});
it('should return true when formState is Empty', () => {
const proxy = {
isValid: true,
} as ReadFormState;
const result = shouldRenderFormState({}, proxy, updateFormState);
expect(result).toBe(true);
});
it('should return true when changed keys are more', () => {
const proxy = { isValid: true } as ReadFormState;
const result = shouldRenderFormState(
{ isValid: false, isDirty: true },
proxy,
updateFormState,
);
expect(result).toBe(true);
});
it('should return true when changed state key is subscribed', () => {
const proxy: ReadFormState = {
isDirty: true,
isValid: false,
} as ReadFormState;
const result = shouldRenderFormState(
{ isDirty: true },
proxy,
updateFormState,
);
expect(result).toBe('isDirty');
expect(updateFormState).toHaveBeenCalledWith({ isDirty: true });
});
it('should return false when changed state key is not subscribed', () => {
const proxy: ReadFormState = {
isDirty: false,
isValid: true,
} as ReadFormState;
const result = shouldRenderFormState(
{ isDirty: true },
proxy,
updateFormState,
);
expect(result).toBeUndefined();
});
describe('when root subscribe', () => {
it('should return subscribed key name if expecting all', () => {
const proxy: ReadFormState = {
isDirty: 'all',
isValid: false,
} as ReadFormState;
const result = shouldRenderFormState(
{ isDirty: true },
proxy,
updateFormState,
true,
);
expect(result).toBe('isDirty');
});
it('should return undefined if not expecting all', () => {
const proxy: ReadFormState = {
isDirty: true,
isValid: false,
} as ReadFormState;
const result = shouldRenderFormState(
{ isDirty: true },
proxy,
updateFormState,
true,
);
expect(result).toBeUndefined();
});
});
});
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