faker_unique_generator

🔢 Generating Unique Values with Faker

Faker’s UniqueGenerator ensures that sequential calls don’t return duplicates, which is crucial when you seed data that requires unique fields (e.g., emails). Remember to clear the unique registry when you need a fresh sequence in a new context (like different test cases).

# Generate 5 unique names
def generate_unique_names
  5.times { puts Faker::UniqueGenerator.unique.name }
end

generate_unique_names
# => “Alice Smith”, “Bob Jones”, ... (all guaranteed unique)

# Reset the unique tracker between test runs or seeding tasks
Faker::UniqueGenerator.clear