To shard test specs across nodes in Protractor with Selenium Grid, you can use the capabilities configuration option in your Protractor configuration file to specify different capabilities for each node. This will allow Protractor to distribute the test specs among the nodes defined in the configuration.

Here's a step-by-step guide to shard test specs across nodes using Protractor with Selenium Grid:

  1. Set up Selenium Grid: Ensure you have Selenium Grid up and running with multiple nodes. Each node should be capable of running tests on different browsers and platforms.

  2. Install Protractor and Create Configuration File: Install Protractor globally by running the following command:

bash
npm install -g protractor

Create a Protractor configuration file (usually named protractor.conf.js) at the root of your project.

  1. Configure Multiple Capabilities: In your Protractor configuration file, define the multiCapabilities array with different capabilities for each node.
javascript
// protractor.conf.js exports.config = { // Other configuration options... multiCapabilities: [ { browserName: 'chrome', shardTestFiles: true, maxInstances: 2, // Number of instances for this capability }, { browserName: 'firefox', shardTestFiles: true, maxInstances: 2, // Number of instances for this capability }, // Add more capabilities for other browsers and platforms if needed ], // Other configuration options... };

In the above example, we have two capabilities defined: one for Chrome and one for Firefox. Each capability is set to shard test files (shardTestFiles: true) and can run a maximum of two instances of the browser (maxInstances: 2). Adjust the number of instances based on the number of nodes available in your Selenium Grid.

  1. Configure Test Specs: Make sure your test specs are organized into multiple files (or directories) so that Protractor can shard them across the nodes.

For example, if you have multiple test specs in separate files under the ./test/specs directory:

bash
./test/specs/test-spec-1.js ./test/specs/test-spec-2.js ./test/specs/test-spec-3.js // and so on...
  1. Run Protractor: Run Protractor using the protractor command, pointing to your configuration file:
bash
protractor protractor.conf.js

Protractor will distribute the test specs across the nodes based on the capabilities defined in the multiCapabilities array. Each node will run the assigned test specs in parallel, maximizing the use of available resources in the Selenium Grid.

By following these steps, you can shard test specs across nodes in Protractor with Selenium Grid, allowing for faster and more efficient test execution.

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