Designing Scalable Framework I Test Automation Framework Development | Part XIV | LambdaTest

From The House of LambdaTest
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:rocket: Level Up Your QA Game! :rocket:

Check out our latest video on Designing Scalable Frameworks where we dive deep into Test Automation Framework Development! Learn the key principles and strategies to create frameworks that grow with your team and adapt to your evolving needs. Whether you’re just starting out or refining an existing setup, this guide has insights to take your automation to the next level. :dart:

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Modular Framework Design This approach emphasizes separating test logic from reusable components to improve scalability and reusability.

Structure: Divide the framework into modules such as Test Cases, Page Objects, Utilities, and Test Data. Advantages: Easy to maintain and extend. Reusable components across different test cases. Enhances collaboration by isolating functionality. Example: Using the Page Object Model (POM) to manage web element interactions in a centralized location. Code Example:

// Page Object
class LoginPage {
  constructor(private page: Page) {}

  async login(username: string, password: string) {
    await this.page.fill('#username', username);
    await this.page.fill('#password', password);
    await this.page.click('button[type="submit"]');
  }
}
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Data-Driven Framework In a data-driven framework, test data is separated from the test scripts, allowing the same script to run with multiple datasets.

Structure: Store test data in external files like CSV, JSON, or Excel. Advantages: Reduces code duplication. Easily supports testing different input scenarios. Enhances scalability by adding more data sets without modifying test scripts.

Example: Load test data dynamically and run the same test logic for multiple scenarios.import * as data from ‘./testData.json’;

data.forEach(async (testCase) => {
  test(`Login Test - ${testCase.scenario}`, async ({ page }) => {
    await loginPage.login(testCase.username, testCase.password);
    expect(await page.locator('.welcome')).toHaveText('Welcome');
  });
});
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Hybrid Framework A hybrid framework combines the best features of different frameworks (e.g., modular and data-driven) to provide flexibility and scalability.

Structure: Use POM for modularity. Incorporate data-driven strategies to handle dynamic data. Include custom reporting and logging modules. Advantages: Highly flexible and adaptable to complex projects. Supports scalability by integrating different approaches. Improves test coverage and reduces maintenance overhead. Example: Combine different locators, reporting libraries, and data sources for comprehensive testing.

Code Example:

class TestFramework {
  constructor(private page: Page, private data: any) {}

  async executeTest() {
    await this.page.goto(this.data.url);
    await loginPage.login(this.data.username, this.data.password);
    await this.generateReport();
  }

  private async generateReport() {
    console.log('Test completed with data:', this.data);
  }
}