tvaIdentity

Mock Jutsu HOW-TO | EN

The tva function within the mock-jutsu library is a specialized identity generation tool designed to produce realistic French Value Added Tax (VAT) identification numbers. In the context of European commerce, a valid TVA number is essential for business-to-business transactions, invoice processing, and mandatory tax reporting. By utilizing mock-jutsu, developers can instantly generate synthetic test data that mirrors the exact structure required by French authorities, ensuring that administrative systems and financial software can be rigorously tested without the need for real-world sensitive information.

Technically, each tva string generated follows the strict formatting rules established by the French government and the European Union. The number typically consists of the "FR" country code followed by a two-digit check key and a nine-digit SIREN number. The mock-jutsu engine implements the ISO 7064 Modulo 97, 10 algorithm to calculate these check digits accurately. This high level of precision ensures that the mock data passes through front-end validation scripts and back-end database constraints that are programmed to reject malformed tax identifiers, making it an indispensable asset for quality assurance engineers who require high-fidelity datasets.

Generating realistic test data is crucial for several development scenarios, particularly within e-commerce platforms, ERP systems, and fintech applications. Developers can use the tva function to simulate complex cross-border billing workflows or to verify that tax calculation engines correctly identify French entities. Because mock-jutsu provides consistent and validatable outputs, it eliminates the "garbage in, garbage out" problem often encountered when using random strings for identity fields. This ensures that edge cases in tax compliance logic are thoroughly vetted before the software reaches a production environment.

Integrating this function into your existing workflow is seamless across multiple environments. Whether you are working in a terminal using the mockjutsu CLI, building a Python script with the jutsu.generate('tva') method, or performing performance testing via the JMeter plugin, the library provides a unified interface. This flexibility allows teams to maintain data consistency across different stages of the software development life cycle. Ultimately, using mock-jutsu for tva generation accelerates the development cycle, reduces the risk of data privacy violations by avoiding real client data, and provides the robust testing framework necessary for modern enterprise applications.

CLI Usage
mockjutsu generate tvamockjutsu bulk tva --count 10mockjutsu export tva --count 10 --format jsonmockjutsu export tva --count 10 --format csvmockjutsu export tva --count 10 --format sql
Python API
from mockjutsu import jutsujutsu.generate('tva')jutsu.bulk('tva', count=10)jutsu.template(['tva'], count=5)
JMeter
${__mockjutsu_identity(tva)}# JMeter Function: __mockjutsu_identity# Parameter 1: tva# Parameter 2: (not required for this function)
REST API
GET /generate/tva# → {"type":"tva","result":"...","status":"ok"}GET /bulk/tva?count=10POST /template {"types":["tva"],"count":1}

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