import { describe, it, expect } from 'vitest';
/**
* Test the CNPJ filtering logic
* This is a white-box test of the internal containsCnpj function
*/
// Replicate the functions from intelligence.ts for testing
function normalizeCnpj(cnpj: string): string {
return cnpj.replace(/\D/g, '');
}
function containsCnpj(text: string, cnpj: string): boolean {
const normalizedCnpj = normalizeCnpj(cnpj);
// Build formatted CNPJ pattern: 12.345.678/0001-90
const formatted = normalizedCnpj.replace(
/^(\d{2})(\d{3})(\d{3})(\d{4})(\d{2})$/,
'$1.$2.$3/$4-$5'
);
// Escape special regex characters in formatted version
const escapedFormatted = formatted.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
// Create patterns with word boundaries
// \b doesn't work well with non-word chars, so use lookahead/lookbehind
const patterns = [
// Unformatted: 12345678000190 (with word boundaries)
new RegExp(`(?<!\\d)${normalizedCnpj}(?!\\d)`, 'i'),
// Formatted: 12.345.678/0001-90
new RegExp(escapedFormatted, 'i')
];
// Check if any pattern matches
return patterns.some(pattern => pattern.test(text));
}
describe('Intelligence - CNPJ Filtering', () => {
const testCnpj = '12345678000190';
const formattedCnpj = '12.345.678/0001-90';
describe('containsCnpj - True Positives', () => {
it('should match unformatted CNPJ in text', () => {
const text = 'Company CNPJ: 12345678000190 is registered';
expect(containsCnpj(text, testCnpj)).toBe(true);
});
it('should match formatted CNPJ in text', () => {
const text = 'Company CNPJ: 12.345.678/0001-90 is registered';
expect(containsCnpj(text, testCnpj)).toBe(true);
});
it('should match formatted CNPJ when given formatted input', () => {
const text = 'CNPJ 12.345.678/0001-90 encontrado';
expect(containsCnpj(text, formattedCnpj)).toBe(true);
});
it('should match CNPJ at start of text', () => {
const text = '12345678000190 - Company Name';
expect(containsCnpj(text, testCnpj)).toBe(true);
});
it('should match CNPJ at end of text', () => {
const text = 'Registered under CNPJ 12345678000190';
expect(containsCnpj(text, testCnpj)).toBe(true);
});
it('should match CNPJ with surrounding punctuation', () => {
const text = 'CNPJ: 12345678000190.';
expect(containsCnpj(text, testCnpj)).toBe(true);
});
it('should match CNPJ in URL', () => {
const text = 'https://example.com/empresa/12345678000190';
expect(containsCnpj(text, testCnpj)).toBe(true);
});
it('should be case insensitive for surrounding text', () => {
const text = 'cnpj: 12.345.678/0001-90 CNPJ';
expect(containsCnpj(text, testCnpj)).toBe(true);
});
});
describe('containsCnpj - True Negatives (Avoiding False Positives)', () => {
it('should NOT match CNPJ with extra digits before', () => {
const text = 'Invalid: 912345678000190';
expect(containsCnpj(text, testCnpj)).toBe(false);
});
it('should NOT match CNPJ with extra digits after', () => {
const text = 'Invalid: 123456780001901';
expect(containsCnpj(text, testCnpj)).toBe(false);
});
it('should NOT match CNPJ embedded in longer number', () => {
const text = 'Wrong: 99123456780001909';
expect(containsCnpj(text, testCnpj)).toBe(false);
});
it('should NOT match partial CNPJ', () => {
const text = 'Partial: 1234567800019';
expect(containsCnpj(text, testCnpj)).toBe(false);
});
it('should NOT match different CNPJ', () => {
const text = 'Different CNPJ: 98765432000100';
expect(containsCnpj(text, testCnpj)).toBe(false);
});
it('should NOT match when no CNPJ present', () => {
const text = 'This text contains no CNPJ at all';
expect(containsCnpj(text, testCnpj)).toBe(false);
});
it('should NOT match empty text', () => {
const text = '';
expect(containsCnpj(text, testCnpj)).toBe(false);
});
it('should NOT match CNPJ with different formatting style', () => {
// This is a tricky case - wrong separator characters
const text = 'Wrong format: 12-345-678-0001-90';
expect(containsCnpj(text, testCnpj)).toBe(false);
});
});
describe('containsCnpj - Edge Cases', () => {
it('should handle CNPJ with spaces before/after', () => {
const text = 'CNPJ 12345678000190 registered';
expect(containsCnpj(text, testCnpj)).toBe(true);
});
it('should handle multiple CNPJs in text (matching ours)', () => {
const text = 'CNPJs: 98765432000100, 12345678000190, 11111111000111';
expect(containsCnpj(text, testCnpj)).toBe(true);
});
it('should handle multiple CNPJs in text (not matching ours)', () => {
const text = 'CNPJs: 98765432000100, 11111111000111';
expect(containsCnpj(text, testCnpj)).toBe(false);
});
it('should handle text with newlines', () => {
const text = 'Company Info:\nCNPJ: 12345678000190\nStatus: Active';
expect(containsCnpj(text, testCnpj)).toBe(true);
});
it('should handle CNPJ in HTML-like content', () => {
const text = '<div>CNPJ: <span>12.345.678/0001-90</span></div>';
expect(containsCnpj(text, testCnpj)).toBe(true);
});
it('should normalize input CNPJ before matching', () => {
const text = 'CNPJ 12345678000190';
const inputWithFormatting = '12.345.678/0001-90';
expect(containsCnpj(text, inputWithFormatting)).toBe(true);
});
});
describe('normalizeCnpj', () => {
it('should remove all non-digit characters', () => {
expect(normalizeCnpj('12.345.678/0001-90')).toBe('12345678000190');
});
it('should handle already normalized CNPJ', () => {
expect(normalizeCnpj('12345678000190')).toBe('12345678000190');
});
it('should handle CNPJ with various separators', () => {
expect(normalizeCnpj('12-345-678-0001-90')).toBe('12345678000190');
});
it('should handle empty string', () => {
expect(normalizeCnpj('')).toBe('');
});
});
describe('Real-world scenarios', () => {
it('should match CNPJ in government portal URL', () => {
const text = 'https://solucoes.receita.fazenda.gov.br/Servicos/cnpjreva/Cnpjreva_Solicitacao.asp?cnpj=12345678000190';
expect(containsCnpj(text, testCnpj)).toBe(true);
});
it('should match CNPJ in legal document snippet', () => {
const text = 'A empresa XYZ Ltda., inscrita no CNPJ sob o nº 12.345.678/0001-90, estabelecida...';
expect(containsCnpj(text, testCnpj)).toBe(true);
});
it('should match CNPJ in news article', () => {
const text = 'The company (CNPJ: 12345678000190) announced today...';
expect(containsCnpj(text, testCnpj)).toBe(true);
});
it('should NOT match when only company name is mentioned', () => {
const text = 'XYZ Company announced new product launch';
expect(containsCnpj(text, testCnpj)).toBe(false);
});
it('should NOT match similar but different numbers', () => {
const text = 'Invoice #123456780001901 for customer 12345678000199';
expect(containsCnpj(text, testCnpj)).toBe(false);
});
});
});
