script-does-not-run-on-child-removal.window.js

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This WPT test may be referenced by the following Test IDs:
- /dom/nodes/insertion-removing-steps/script-does-not-run-on-child-removal.window.html - WPT Dashboard Interop Dashboard

// See:

//  - https://github.com/whatwg/dom/issues/808

//  - https://github.com/whatwg/dom/pull/1261

//  - https://github.com/whatwg/html/pull/10188

//  - https://source.chromium.org/chromium/chromium/src/+/604e798ec6ee30f44d57a5c4a44ce3dab3a871ed

//  - https://github.com/whatwg/dom/pull/732#pullrequestreview-328249015

//  - https://github.com/whatwg/html/pull/4354#issuecomment-476038918

test(() => {

  window.script_did_run = false;

  const script = document.createElement('script');

  // This prevents execution on insertion.

  script.type = '0';

  script.textContent = `script_did_run = true;`;

  document.body.append(script);

  assert_false(script_did_run,

      'Appending script with invalid type does not trigger execution');

  const div = document.createElement('div');

  script.append(div);

  assert_false(script_did_run,

      'Appending a child to an invalid-type script does not trigger execution');

  // This enables, but does not trigger, execution.

  script.type = '';

  assert_false(script_did_run,

      'Unsetting script type does not trigger execution');

  div.remove();

  assert_false(script_did_run,

      'Removing child from valid script that has not already run, does not ' +

      'trigger execution');

}, "Script execution is never triggered on child removals");