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<mmm-testing>

Developer sandbox component. Renders a fixed black-on-white box with the text "Testing Component" — used internally to verify the SDK loader, registration pipeline, and shadow-DOM mounting are working end-to-end.

Overview

Not for production use. Drop it on a blank page and confirm it renders to verify that:

  • CommmerceSDKLoader finished loading.
  • The custom-elements registry accepted mmm-testing.
  • Shadow-DOM rendering is working.

Has zero inline attributes and emits no events. Hard-coded styles: black background, white text. Safe to remove entirely once you have a working storefront.

When to use

  • As the first component on a brand-new theme to verify the SDK pipeline.
  • To smoke-test a fresh deployment of the web-component bundle.

Quick start

<script src="https://v2-api-production.commmerce.com/api/v1/web-component/commmerce-sdk.js?store=sample-store"></script>

<mmm-testing></mmm-testing>

Attributes

None. Standard HTML attributes (id, class, hidden) only.

Live preview

store sample-store tag <mmm-testing>

If you see the black box with "Testing Component" — the SDK is loading correctly.

Examples

1. Verify the SDK pipeline

<mmm-testing></mmm-testing>