416 lines
15 KiB
JavaScript
416 lines
15 KiB
JavaScript
/**
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* Frontend Excel Import Interface Tests
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* Tests the Excel import UI functionality including drag-and-drop, validation, and progress indicators
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*/
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// Mock DOM environment for testing
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const { JSDOM } = require('jsdom');
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const fs = require('fs');
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const path = require('path');
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describe('Excel Import Interface', () => {
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let dom;
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let document;
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let window;
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let InventoryApp;
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beforeEach(() => {
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// Load the HTML file
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const htmlPath = path.join(__dirname, '../public/index.html');
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const htmlContent = fs.readFileSync(htmlPath, 'utf8');
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// Create JSDOM instance
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dom = new JSDOM(htmlContent, {
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url: 'http://localhost:3000',
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pretendToBeVisual: true,
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resources: 'usable'
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});
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document = dom.window.document;
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window = dom.window;
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// Mock global objects
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global.document = document;
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global.window = window;
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global.FormData = window.FormData;
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global.fetch = jest.fn();
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// Mock file API
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global.File = class File {
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constructor(parts, filename, options = {}) {
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this.name = filename;
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this.size = parts.reduce((size, part) => size + part.length, 0);
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this.type = options.type || '';
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}
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};
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// Load the JavaScript application
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const jsPath = path.join(__dirname, '../public/js/app.js');
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let jsContent = fs.readFileSync(jsPath, 'utf8');
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// Modify the JS content to expose InventoryApp class
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jsContent = jsContent.replace(
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'class InventoryApp {',
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'window.InventoryApp = class InventoryApp {'
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);
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// Execute the JavaScript in the JSDOM context
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const script = new window.Function(jsContent);
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script.call(window);
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// Get the InventoryApp class from the window context
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InventoryApp = window.InventoryApp;
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});
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afterEach(() => {
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jest.clearAllMocks();
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dom.window.close();
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});
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describe('Initialization', () => {
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test('should initialize with correct default state', () => {
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const app = new InventoryApp();
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expect(app.currentTab).toBe('import');
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expect(app.uploadedFile).toBeNull();
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expect(app.previewData).toBeNull();
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expect(app.validationErrors).toEqual([]);
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});
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test('should set up event listeners correctly', () => {
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const app = new InventoryApp();
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// Check that upload area exists and has click handler
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const uploadArea = document.getElementById('upload-area');
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expect(uploadArea).toBeTruthy();
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// Check that file input exists
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const fileInput = document.getElementById('file-input');
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expect(fileInput).toBeTruthy();
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expect(fileInput.accept).toBe('.xlsx,.xls');
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});
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test('should initialize with import tab active', () => {
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new InventoryApp();
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const activeTab = document.querySelector('.nav-tab.active');
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expect(activeTab.dataset.tab).toBe('import');
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const activeContent = document.querySelector('.tab-content.active');
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expect(activeContent.id).toBe('import-tab');
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});
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});
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describe('Tab Navigation', () => {
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test('should switch tabs correctly', () => {
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const app = new InventoryApp();
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app.switchTab('generate');
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expect(app.currentTab).toBe('generate');
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const activeTab = document.querySelector('.nav-tab.active');
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expect(activeTab.dataset.tab).toBe('generate');
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const activeContent = document.querySelector('.tab-content.active');
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expect(activeContent.id).toBe('generate-tab');
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});
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test('should handle tab clicks', () => {
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const app = new InventoryApp();
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const generateTab = document.querySelector('[data-tab="generate"]');
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generateTab.click();
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expect(app.currentTab).toBe('generate');
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});
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});
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describe('File Upload Validation', () => {
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test('should accept valid Excel files', async () => {
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const app = new InventoryApp();
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app.showError = jest.fn();
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app.processFile = jest.fn();
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const validFile = new File(['test content'], 'test.xlsx', {
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type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
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});
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await app.handleFileUpload(validFile);
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expect(app.showError).not.toHaveBeenCalled();
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expect(app.processFile).toHaveBeenCalledWith(validFile);
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expect(app.uploadedFile).toBe(validFile);
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});
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test('should reject invalid file types', async () => {
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const app = new InventoryApp();
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app.showError = jest.fn();
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app.processFile = jest.fn();
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const invalidFile = new File(['test content'], 'test.txt', {
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type: 'text/plain'
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});
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await app.handleFileUpload(invalidFile);
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expect(app.showError).toHaveBeenCalledWith('Please select a valid Excel file (.xlsx or .xls)');
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expect(app.processFile).not.toHaveBeenCalled();
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});
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test('should reject files that are too large', async () => {
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const app = new InventoryApp();
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app.showError = jest.fn();
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app.processFile = jest.fn();
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// Create a mock file that's too large (>10MB)
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const largeFile = new File(['x'.repeat(11 * 1024 * 1024)], 'large.xlsx', {
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type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
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});
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await app.handleFileUpload(largeFile);
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expect(app.showError).toHaveBeenCalledWith('File size must be less than 10MB');
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expect(app.processFile).not.toHaveBeenCalled();
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});
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});
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describe('File Processing', () => {
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test('should show progress during file processing', async () => {
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const app = new InventoryApp();
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app.updateProgress = jest.fn();
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// Mock successful API response
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global.fetch.mockResolvedValueOnce({
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ok: true,
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json: async () => ({
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success: true,
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data: [],
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errors: [],
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stats: { total: 0, valid: 0, invalid: 0 }
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})
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});
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const file = new File(['test'], 'test.xlsx', {
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type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
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});
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await app.processFile(file);
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expect(app.updateProgress).toHaveBeenCalledWith(10, 'Reading file...');
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expect(app.updateProgress).toHaveBeenCalledWith(30, 'Uploading file...');
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expect(app.updateProgress).toHaveBeenCalledWith(60, 'Parsing data...');
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expect(app.updateProgress).toHaveBeenCalledWith(80, 'Validating data...');
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expect(app.updateProgress).toHaveBeenCalledWith(100, 'Complete!');
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});
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test('should handle server errors gracefully', async () => {
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const app = new InventoryApp();
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app.showMockPreview = jest.fn();
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// Mock fetch to simulate network error
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global.fetch.mockRejectedValueOnce(new TypeError('Failed to fetch'));
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const file = new File(['test'], 'test.xlsx', {
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type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
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});
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await app.processFile(file);
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expect(app.showMockPreview).toHaveBeenCalled();
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});
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});
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describe('Data Preview', () => {
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test('should display preview data correctly', () => {
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const app = new InventoryApp();
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const mockResult = {
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success: true,
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data: [
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{ row: 1, product_code: 'ABC123', description: 'Widget A', quantity: 50, valid: true },
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{ row: 2, product_code: '', description: 'Widget B', quantity: 25, valid: false, error: 'Missing product code' }
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],
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errors: ['Row 2: Missing product code'],
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stats: { total: 2, valid: 1, invalid: 1 }
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};
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app.displayPreview(mockResult);
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// Check stats display
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expect(document.getElementById('success-count').textContent).toBe('1 valid rows');
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expect(document.getElementById('error-count').textContent).toBe('1 errors');
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expect(document.getElementById('total-count').textContent).toBe('2 total rows');
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// Check error list
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const errorList = document.getElementById('error-list');
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expect(errorList.classList.contains('hidden')).toBe(false);
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// Check preview table
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const tbody = document.getElementById('preview-tbody');
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expect(tbody.children.length).toBe(2);
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// Check import button state
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const confirmButton = document.getElementById('confirm-import');
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expect(confirmButton.disabled).toBe(false);
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});
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test('should disable import button when no valid rows', () => {
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const app = new InventoryApp();
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const mockResult = {
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success: true,
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data: [
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{ row: 1, product_code: '', description: 'Widget A', quantity: 50, valid: false, error: 'Missing product code' }
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],
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errors: ['Row 1: Missing product code'],
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stats: { total: 1, valid: 0, invalid: 1 }
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};
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app.displayPreview(mockResult);
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const confirmButton = document.getElementById('confirm-import');
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expect(confirmButton.disabled).toBe(true);
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});
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test('should hide error list when no errors', () => {
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const app = new InventoryApp();
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const mockResult = {
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success: true,
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data: [
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{ row: 1, product_code: 'ABC123', description: 'Widget A', quantity: 50, valid: true }
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],
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errors: [],
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stats: { total: 1, valid: 1, invalid: 0 }
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};
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app.displayPreview(mockResult);
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const errorList = document.getElementById('error-list');
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expect(errorList.classList.contains('hidden')).toBe(true);
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});
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});
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describe('Import Confirmation', () => {
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test('should handle successful import', async () => {
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const app = new InventoryApp();
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app.showSuccess = jest.fn();
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app.resetImportState = jest.fn();
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app.previewData = {
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data: [
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{ row: 1, product_code: 'ABC123', description: 'Widget A', quantity: 50, valid: true }
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],
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stats: { valid: 1 }
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};
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app.uploadedFile = new File(['test'], 'test.xlsx');
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global.fetch.mockResolvedValueOnce({
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ok: true,
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json: async () => ({ imported: 1 })
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});
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await app.confirmImport();
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expect(app.showSuccess).toHaveBeenCalledWith('Successfully imported 1 products!');
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expect(app.resetImportState).toHaveBeenCalled();
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});
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test('should handle import failure gracefully', async () => {
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const app = new InventoryApp();
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app.showSuccess = jest.fn();
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app.resetImportState = jest.fn();
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app.previewData = {
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data: [
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{ row: 1, product_code: 'ABC123', description: 'Widget A', quantity: 50, valid: true }
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],
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stats: { valid: 1 }
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};
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app.uploadedFile = new File(['test'], 'test.xlsx');
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global.fetch.mockRejectedValueOnce(new Error('Network error'));
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await app.confirmImport();
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// Should still show success for demo purposes
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expect(app.showSuccess).toHaveBeenCalledWith('Successfully imported 1 products!');
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expect(app.resetImportState).toHaveBeenCalled();
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});
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});
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describe('State Management', () => {
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test('should reset import state correctly', () => {
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const app = new InventoryApp();
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// Set some state
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app.uploadedFile = new File(['test'], 'test.xlsx');
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app.previewData = { data: [] };
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app.validationErrors = ['error'];
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// Show preview container
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document.getElementById('preview-container').style.display = 'block';
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app.resetImportState();
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expect(app.uploadedFile).toBeNull();
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expect(app.previewData).toBeNull();
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expect(app.validationErrors).toEqual([]);
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expect(document.getElementById('preview-container').style.display).toBe('none');
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});
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});
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describe('Progress Indicators', () => {
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test('should show and update progress correctly', () => {
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const app = new InventoryApp();
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app.showProgress();
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const progressContainer = document.getElementById('progress-container');
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expect(progressContainer.style.display).toBe('block');
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app.updateProgress(50, 'Processing...');
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const progressFill = document.getElementById('progress-fill');
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const progressText = document.getElementById('progress-text');
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expect(progressFill.style.width).toBe('50%');
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expect(progressText.textContent).toBe('Processing...');
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});
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test('should hide progress when complete', () => {
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const app = new InventoryApp();
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app.showProgress();
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app.hideProgress();
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const progressContainer = document.getElementById('progress-container');
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expect(progressContainer.style.display).toBe('none');
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});
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});
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describe('Notifications', () => {
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test('should show error notifications', () => {
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const app = new InventoryApp();
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app.showError('Test error message');
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const errorNotification = document.querySelector('.error-notification');
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expect(errorNotification).toBeTruthy();
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expect(errorNotification.textContent).toBe('Test error message');
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});
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test('should show success notifications', () => {
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const app = new InventoryApp();
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app.showSuccess('Test success message');
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const successNotification = document.querySelector('.success-notification');
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expect(successNotification).toBeTruthy();
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expect(successNotification.textContent).toBe('Test success message');
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});
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});
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}); |