Question 1

How do I set up WCT to test non-Polymer web components?

Accepted Answer

You can use WCT for vanilla web components, but you'll miss out on Polymer-specific matchers. Configure the test environment manually using standard DOM APIs, and set up Selenium drivers separately, which adds complexity compared to Polymer projects.

Question 2

Is WCT better than Jest for testing web components?

Accepted Answer

WCT excels for Polymer projects with built-in browser testing and specialized utilities, while Jest is more general and requires extra setup for cross-browser testing. For non-Polymer web components, Jest with tools like Puppeteer might offer more flexibility and a larger ecosystem.

Question 3

Does WCT support headless browser testing?

Accepted Answer

Yes, WCT supports headless modes through its Selenium integration, allowing tests to run without a GUI. This is useful for CI/CD pipelines and faster local execution, though it requires proper driver configuration.

Question 4

Can I use WCT with TypeScript projects?

Accepted Answer

WCT primarily works with JavaScript, but you can configure it to compile TypeScript files during testing using plugins or build tools. Native TypeScript support isn't built-in, so additional setup like transpilation is needed.

Question 5

How to integrate WCT with continuous integration like GitHub Actions?

Accepted Answer

Run WCT via its CLI in CI environments by installing dependencies, setting up browser drivers, and using command-line options for automation. This involves managing Selenium and browser installations, which can be more involved than with cloud-based testing services.

Question 6

What are the main alternatives to WCT for Polymer testing?

Accepted Answer

Alternatives include using general test runners like Mocha or Jest with custom setups for Polymer, or newer tools like Web Test Runner that support modern web standards. However, WCT remains the most integrated option specifically for Polymer's data-binding and lifecycle features.

Web components tester

What is Web components tester?

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