addTestId method

void addTestId(String? value, { String key = defaultTestIdKey, })

Adds value to the prop key (delimited with a single space).

Allows for an element to have multiple test IDs to prevent overwriting when cloning elements or components.

For use in a testing environment (when testMode is true).

Implementation

void addTestId(String? value, {String key = defaultTestIdKey}) {
  if (!_inTestMode || value == null) {
    return;
  }

  String? testId = getTestId(key: key);

  if (testId == null) {
    props[key] = value;
  } else {
    props[key] = getTestId(key: key)! + ' $value';
  }
}