ContainsArrayValidator<T> class

A validator that checks if a list contains all required elements.

The ContainsArrayValidator ensures that a given list includes a predefined set of elements.

Example

final validator = ContainsArrayValidator(
  requiredElements: [1, 2, 3],
  message: 'The list must contain all required elements',
);

print(validator.validate([1, 2, 3, 4, 5])); // null (valid)
print(validator.validate([1, 2])); // 'The list must contain all required elements' (invalid)
print(validator.validate(['a', 'b', 'c'])); // 'The list must contain all required elements' (invalid)

Parameters

• requiredElements: A list of elements that must be present.
• message: Custom error message when validation fails.

Behavior:

• If the list contains all required elements, validation passes.
• If any required element is missing, validation fails.