React/Jest tests for ModalWindow.js

src/tests/Modal_tests/ModalWindow.test.js

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+import React from 'react';
+import { render, screen, fireEvent } from '@testing-library/react';
+import '@testing-library/jest-dom';
+import ModalWindow from '../../components/ModalWindows/ModalWindow';
+import { FieldType } from '../../utils/common';
+
+const mockCloseModal = jest.fn();
+const mockOnSubmit = jest.fn();
+
+const mockFields = [
+  {
+    fieldType: FieldType.textarea,
+    id: 'name',
+    text: 'Name',
+    value: 'Test Name',
+  },
+  {
+    fieldType: FieldType.number,
+    id: 'age',
+    text: 'Age',
+    value: 25,
+  },
+  {
+    fieldType: FieldType.float,
+    id: 'percentage',
+    text: 'Percentage',
+    value: 0.5,
+    step: 0.1,
+  },
+  {
+    fieldType: FieldType.selectClock,
+    id: 'clock',
+    text: 'Clock',
+    values: ['Clock1', 'Clock2'],
+    value: 'Clock1',
+  },
+];
+
+const mockDefaultValue = {
+  name: 'Test Name',
+  age: 25,
+  percentage: 0.5,
+  clock: 'Clock1',
+};
+
+describe('ModalWindow Component', () => {
+  beforeEach(() => {
+    render(
+      <ModalWindow
+        title="Test Modal"
+        defaultValue={mockDefaultValue}
+        onSubmit={mockOnSubmit}
+        closeModal={mockCloseModal}
+        fields={mockFields}
+      />
+    );
+  });
+
+  it('renders the modal with the correct title', () => {
+    expect(screen.getByText('Test Modal')).toBeInTheDocument();
+  });
+
+  it('renders all input fields with correct default values', () => {
+    expect(screen.getByDisplayValue('Test Name')).toBeInTheDocument();
+    expect(screen.getByDisplayValue('25')).toBeInTheDocument();
+    expect(screen.getByDisplayValue('50.0')).toBeInTheDocument();
+    expect(screen.getByDisplayValue('Clock1')).toBeInTheDocument();
+  });
+
+  it('calls closeModal when the close button is clicked', () => {
+    const closeButton = screen.getByRole('button', { name: /cancel/i });
+    fireEvent.click(closeButton);
+    expect(mockCloseModal).toHaveBeenCalled();
+  });
+
+  it('calls onSubmit with correct data when the form is submitted', () => {
+    const submitButton = screen.getByRole('button', { name: /ok/i });
+    fireEvent.click(submitButton);
+    expect(mockOnSubmit).toHaveBeenCalledWith(mockDefaultValue);
+  });
+
+  it('updates the name field when changed', () => {
+    const nameInput = screen.getByDisplayValue('Test Name');
+    fireEvent.change(nameInput, { target: { value: 'Updated Name' } });
+    expect(nameInput.value).toBe('Updated Name');
+  });
+
+  it('updates the age field when changed', () => {
+    const ageInput = screen.getByDisplayValue('25');
+    fireEvent.change(ageInput, { target: { value: '30' } });
+    expect(ageInput.value).toBe('30');
+  });
+
+  it('updates the percentage field when changed', () => {
+    const percentageInput = screen.getByDisplayValue('50.0');
+    fireEvent.change(percentageInput, { target: { value: '60.0' } });
+    expect(percentageInput.value).toBe('60.0');
+  });
+
+  it('updates the clock field when changed', () => {
+    const clockSelect = screen.getByDisplayValue('Clock1');
+    fireEvent.change(clockSelect, { target: { value: 'Clock2' } });
+    expect(screen.getByDisplayValue('Clock2')).toBeInTheDocument();
+  });
+});