Waltir
By: Waltir

Three Ways To Resize The Browser In Nightwatch

Cover Image for Three Ways To Resize The Browser In Nightwatch

Nightwatch.js is a popular end-to-end testing framework for web applications. It provides a convenient way to write automated tests for your web application. One of the features of Nightwatch.js is the ability to control the size of the browser window during testing. In this article, we'll describe how to resize Nightwatch browser windows using maximizeWindow, resizeWindow, and the window-size chromeOptions arg.

Using maximizeWindow

The maximizeWindow function allows you to maximize the size of the current browser window. It's a simple function to use, and it can be especially useful when testing the responsiveness of your web application. Here's an example of how to use maximizeWindow:

module.exports = {
    'Test Maximizing the Browser Window': function (browser) {
        browser
            .url('http://www.google.com')
            .waitForElementVisible('body')
            .maximizeWindow()
            .assert.elementPresent('body')
            .end();
    }
};

Nightwatch.js is a popular end-to-end testing framework for web applications. It provides a convenient way to write automated tests for your web application. One of the features of Nightwatch.js is the ability to control the size of the browser window during testing. In this article, we'll describe how to resize Nightwatch browser windows using maximizeWindow, resizeWindow, and the window-size chromeOptions arg.

Using maximizeWindow

The maximizeWindow function allows you to maximize the size of the current browser window. It's a simple function to use, and it can be especially useful when testing the responsiveness of your web application. Here's an example of how to use maximizeWindow:

module.exports = {
  'Test Maximizing the Browser Window': function(browser) {
    browser
      .url('http://www.google.com')
      .waitForElementVisible('body')
      .maximizeWindow()
      .assert.elementPresent('body')
      .end();
  }
};

In this example, the url function is called with the parameter 'http://www.google.com', which tells Nightwatch to navigate to the Google homepage. The waitForElementVisible function is then called with the parameter 'body', which waits for the body element to be visible on the page. The maximizeWindow function is then called, which maximizes the size of the current browser window. Finally, an assertion is made to ensure that the body element is present on the page.

Using resizeWindow

The resizeWindow function allows you to resize the current browser window to a specific size. It takes two parameters: the width and height of the window. Here's an example of how to use resizeWindow:

module.exports = {
  'Test Resizing the Browser Window': function(browser) {
    browser
      .resizeWindow(1024, 768)
      .assert.elementPresent('body')
      .end();
  }
};

In this example, the resizeWindow function is called with the parameters 1024 and 768, which represent the width and height of the window, respectively. The window will be resized to these dimensions, and then an assertion is made to ensure that the body element is present on the page.

Using window-size chromeOptions arg

The window-size chromeOptions arg allows you to specify the initial size of the browser window when it is launched. This can be useful when you want to test your application at different screen sizes. Here's an example of how to use the window-size chromeOptions arg:

module.exports = {
  'Test Resizing the Browser Window': function(browser) {
    browser
      .url('http://www.google.com')
      .waitForElementVisible('body')
      .assert.elementPresent('body')
      .end();
  },

  beforeEach: function(browser) {
    browser.options.desiredCapabilities = {
      browserName: 'chrome',
      chromeOptions: {
        args: [
          'window-size=1024,768'
        ]
      }
    };
  }
};

In this example, the chromeOptions window-size property is set in the beforeEach hook. This hook is run before each test, so it ensures that the browser window is always the same size when it is launched. The window-size argument is set to 1024,768, which represents the width and height of the window, respectively.

In conclusion, both resizeWindow and chromeOptions window-size provide a way to control the size of the browser window in Nightwatch.js. Depending on your testing requirements, you may find that one or the other is more suitable for your needs. Whether you are resizing the window during a test, or setting the initial size of the window when it is launched, Nightwatch.js provides the tools to get the job done.

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