react-hook-form/cypress/e2e/useFieldArrayNested.cy.ts

describe('useFieldArrayNested', () => {
  it('should work correctly with nested field array', () => {
    cy.visit('http://localhost:3000/useFieldArrayNested');

    cy.get(`#nest-append-0`).click();
    cy.get(`#nest-prepend-0`).click();
    cy.get(`#nest-insert-0`).click();
    cy.get(`#nest-swap-0`).click();
    cy.get(`#nest-move-0`).click();

    cy.get('input[name="test.0.keyValue.0.name"]').should(
      'have.value',
      'insert',
    );
    cy.get('input[name="test.0.keyValue.1.name"]').should(
      'have.value',
      'prepend',
    );
    cy.get('input[name="test.0.keyValue.2.name"]').should('have.value', '1a');
    cy.get('input[name="test.0.keyValue.3.name"]').should('have.value', '1c');
    cy.get('input[name="test.0.keyValue.4.name"]').should(
      'have.value',
      'append',
    );

    cy.get(`#nest-remove-0`).click();
    cy.get('input[name="test.0.keyValue.2.name"]').should('have.value', '1c');
    cy.get('input[name="test.0.keyValue.3.name"]').should(
      'have.value',
      'append',
    );

    cy.get('#dirty-nested-0').should(($state) =>
      expect(JSON.parse($state.text())).to.be.deep.equal({
        test: [
          {
            firstName: false,
            lastName: false,
            keyValue: [
              { name: true },
              { name: true },
              { name: true },
              { name: true },
            ],
          },
        ],
      }),
    );

    cy.get('#touched-nested-0').should(($state) =>
      expect(JSON.parse($state.text())).to.be.deep.equal({
        test: [{ keyValue: [{ name: true }, null, null, { name: true }] }],
      }),
    );

    cy.get('#submit').click();

    cy.get('#result').should(($state) =>
      expect(JSON.parse($state.text())).to.be.deep.equal({
        test: [
          {
            firstName: 'Bill',
            lastName: 'Luo',
            keyValue: [
              { name: 'insert' },
              { name: '1a' },
              { name: '1c' },
              { name: 'append' },
            ],
          },
        ],
      }),
    );

    cy.get('#prepend').click();

    cy.get('#dirty-nested-0').should(($state) =>
      expect(JSON.parse($state.text())).to.be.deep.equal({
        test: [
          {
            keyValue: [{ name: true }, { name: true }],
            firstName: true,
            lastName: true,
          },
          {
            firstName: true,
            lastName: true,
            keyValue: [
              { name: true },
              { name: true },
              { name: true },
              { name: true },
            ],
          },
        ],
      }),
    );

    cy.get('#touched-nested-0').should(($state) =>
      expect(JSON.parse($state.text())).to.be.deep.equal({
        test: [
          null,
          { keyValue: [{ name: true }, null, null, { name: true }] },
        ],
      }),
    );

    cy.get('#append').click();
    cy.get('#swap').click();
    cy.get('#insert').click();

    cy.get('#touched-nested-0').should(($state) =>
      expect(JSON.parse($state.text())).to.be.deep.equal({
        test: [
          { firstName: true },
          null,
          { firstName: true },
          { keyValue: [{ name: true }, null, null, { name: true }] },
        ],
      }),
    );

    cy.get('#dirty-nested-0').should(($state) =>
      expect(JSON.parse($state.text())).to.be.deep.equal({
        test: [
          {
            firstName: true,
            keyValue: [{ name: true }, { name: true }],
            lastName: true,
          },
          { firstName: true },
          { firstName: true, keyValue: [] },
          {
            firstName: true,
            lastName: true,
            keyValue: [
              { name: true },
              { name: true },
              { name: true },
              { name: true },
            ],
          },
        ],
      }),
    );

    cy.get('#submit').click();

    cy.get('#result').should(($state) =>
      expect(JSON.parse($state.text())).to.be.deep.equal({
        test: [
          { firstName: 'prepend', keyValue: [] },
          { firstName: 'insert', keyValue: [] },
          { firstName: 'append', keyValue: [] },
          {
            firstName: 'Bill',
            keyValue: [
              { name: 'insert' },
              { name: '1a' },
              { name: '1c' },
              { name: 'append' },
            ],
            lastName: 'Luo',
          },
        ],
      }),
    );

    cy.get(`#nest-append-0`).click();
    cy.get(`#nest-prepend-0`).click();
    cy.get(`#nest-insert-0`).click();
    cy.get(`#nest-swap-0`).click();
    cy.get(`#nest-move-0`).click();

    cy.get('input').its('length').should('eq', 11);

    cy.get('#nest-remove-3').click();
    cy.get('#nest-remove-3').click();

    cy.get('input[name="test.3.keyValue.0.name"]').should(
      'has.value',
      'insert',
    );
    cy.get('input[name="test.3.keyValue.1.name"]').should(
      'has.value',
      'append',
    );

    cy.get('#dirty-nested-0').should(($state) =>
      expect(JSON.parse($state.text())).to.be.deep.equal({
        test: [
          {
            firstName: true,
            keyValue: [{ name: true }, { name: true }, { name: true }],
            lastName: true,
          },
          { firstName: true, keyValue: [] },
          { firstName: true, keyValue: [] },
          {
            firstName: true,
            lastName: true,
            keyValue: [{ name: true }, { name: true }],
          },
        ],
      }),
    );

    cy.get('#nest-update-0').click();

    cy.get('input[name="test.0.keyValue.0.name"]').should(
      'have.value',
      'update',
    );

    cy.get('#submit').click();

    cy.get('#result').should(($state) =>
      expect(JSON.parse($state.text())).to.be.deep.equal({
        test: [
          {
            firstName: 'prepend',
            keyValue: [
              { name: 'update' },
              { name: 'prepend' },
              { name: 'append' },
            ],
          },
          { firstName: 'insert', keyValue: [] },
          { firstName: 'append', keyValue: [] },
          {
            firstName: 'Bill',
            keyValue: [{ name: 'insert' }, { name: 'append' }],
            lastName: 'Luo',
          },
        ],
      }),
    );

    cy.get('#nest-remove-all-3').click();
    cy.get('#nest-remove-all-2').click();
    cy.get('#nest-remove-all-1').click();
    cy.get('#nest-remove-all-0').click();

    cy.get('#touched-nested-2').contains(
      '{"test":[{"firstName":true,"keyValue":[]},{"firstName":true},{"firstName":true},{"keyValue":[]}]}',
    );

    cy.get('#dirty-nested-2').should(($state) =>
      expect(JSON.parse($state.text())).to.be.deep.equal({
        test: [
          {
            firstName: true,
            keyValue: [{ name: true }, { name: true }],
            lastName: true,
          },
          { firstName: true, keyValue: [] },
          { firstName: true, keyValue: [] },
          { firstName: true, lastName: true, keyValue: [] },
        ],
      }),
    );

    cy.get('#submit').click();

    cy.get('#result').should(($state) =>
      expect(JSON.parse($state.text())).to.be.deep.equal({
        test: [
          { firstName: 'prepend', keyValue: [] },
          { firstName: 'insert', keyValue: [] },
          { firstName: 'append', keyValue: [] },
          { firstName: 'Bill', keyValue: [], lastName: 'Luo' },
        ],
      }),
    );

    cy.get('#remove').click();
    cy.get('#remove').click();
    cy.get('#remove').click();

    cy.get('#dirty-nested-0').should(($state) =>
      expect(JSON.parse($state.text())).to.be.deep.equal({
        test: [
          {
            firstName: true,
            keyValue: [{ name: true }, { name: true }],
            lastName: true,
          },
        ],
      }),
    );

    cy.get('#submit').click();
    cy.get('#result').contains(
      '{"test":[{"firstName":"prepend","keyValue":[]}]}',
    );

    cy.get('#update').click();

    cy.get('input[name="test.0.firstName"]').should(
      'have.value',
      'updateFirstName',
    );
    cy.get('input[name="test.0.keyValue.0.name"]').should(
      'have.value',
      'updateFirstName1',
    );
    cy.get('input[name="test.0.keyValue.1.name"]').should(
      'have.value',
      'updateFirstName2',
    );

    cy.get('#removeAll').click();

    cy.get('#dirty-nested-0').should('not.exist');

    cy.get('#touched-nested-0').should('not.exist');

    cy.get('#submit').click();
    cy.get('#result').contains('{"test":[]}');

    cy.get('#count').contains('17');
  });
});