New Base func
This commit is contained in:
Jakob Wennberg
@@ -0,0 +1,286 @@
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import { describe, it, expect } from 'vitest'
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import {
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findTransactionMatches,
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autoMatchReceipts,
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filterUnmatchedTransactions,
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filterUnmatchedReceipts,
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} from '../receipt-matcher'
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import { makeReceipt, makeTransaction } from '@/tests/helpers'
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describe('findTransactionMatches', () => {
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it('exact date + exact amount → high confidence', () => {
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const receipt = makeReceipt({
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receipt_date: '2024-06-15',
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total_amount: 299,
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merchant_name: 'ICA Maxi',
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})
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const transactions = [
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makeTransaction({
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date: '2024-06-15',
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amount: -299,
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merchant_name: 'ICA Maxi',
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receipt_id: null,
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}),
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]
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const matches = findTransactionMatches(receipt, transactions)
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expect(matches).toHaveLength(1)
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expect(matches[0].confidence).toBeGreaterThanOrEqual(0.8)
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expect(matches[0].dateVariance).toBe(0)
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})
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it('date within ±3 days → matches with lower confidence', () => {
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const receipt = makeReceipt({
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receipt_date: '2024-06-15',
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total_amount: 500,
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merchant_name: '',
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})
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const transactions = [
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makeTransaction({
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date: '2024-06-17',
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amount: -500,
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merchant_name: '',
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receipt_id: null,
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}),
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]
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const matches = findTransactionMatches(receipt, transactions)
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expect(matches.length).toBeGreaterThanOrEqual(1)
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expect(matches[0].dateVariance).toBeCloseTo(2, 0)
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})
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it('date outside ±3 days → no match', () => {
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const receipt = makeReceipt({
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receipt_date: '2024-06-15',
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total_amount: 500,
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merchant_name: '',
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})
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const transactions = [
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makeTransaction({
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date: '2024-06-25',
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amount: -500,
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merchant_name: '',
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receipt_id: null,
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}),
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]
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const matches = findTransactionMatches(receipt, transactions)
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expect(matches).toHaveLength(0)
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})
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it('amount within 5% tolerance → matches', () => {
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const receipt = makeReceipt({
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receipt_date: '2024-06-15',
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total_amount: 1000,
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merchant_name: '',
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})
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// 4% off = 960
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const transactions = [
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makeTransaction({
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date: '2024-06-15',
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amount: -960,
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merchant_name: '',
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receipt_id: null,
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}),
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]
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const matches = findTransactionMatches(receipt, transactions)
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expect(matches.length).toBeGreaterThanOrEqual(1)
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})
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it('amount outside tolerance → no match', () => {
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const receipt = makeReceipt({
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receipt_date: '2024-06-15',
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total_amount: 1000,
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merchant_name: '',
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is_foreign_merchant: false,
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})
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// 10% off = 900 (way above 5%)
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const transactions = [
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makeTransaction({
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date: '2024-06-15',
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amount: -900,
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merchant_name: '',
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receipt_id: null,
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}),
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]
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const matches = findTransactionMatches(receipt, transactions)
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expect(matches).toHaveLength(0)
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})
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it('merchant name similarity boosts confidence', () => {
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const receipt = makeReceipt({
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receipt_date: '2024-06-15',
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total_amount: 500,
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merchant_name: 'Coop Konsum',
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})
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const txWithMerchant = makeTransaction({
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id: 'tx-with',
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date: '2024-06-15',
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amount: -500,
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merchant_name: 'Coop Konsum Stockholm',
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receipt_id: null,
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})
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const txWithout = makeTransaction({
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id: 'tx-without',
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date: '2024-06-15',
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amount: -500,
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merchant_name: '',
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receipt_id: null,
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})
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const matchesWithMerchant = findTransactionMatches(receipt, [txWithMerchant])
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const matchesWithout = findTransactionMatches(receipt, [txWithout])
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// Both should match since date+amount are exact
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expect(matchesWithMerchant.length).toBeGreaterThanOrEqual(1)
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expect(matchesWithout.length).toBeGreaterThanOrEqual(1)
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// Merchant match should have higher confidence
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expect(matchesWithMerchant[0].confidence).toBeGreaterThan(
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matchesWithout[0].confidence
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)
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})
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it('skips already-matched transactions (receipt_id set)', () => {
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const receipt = makeReceipt({
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receipt_date: '2024-06-15',
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total_amount: 299,
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})
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const transactions = [
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makeTransaction({
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date: '2024-06-15',
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amount: -299,
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receipt_id: 'already-matched',
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}),
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]
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const matches = findTransactionMatches(receipt, transactions)
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expect(matches).toHaveLength(0)
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})
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it('skips income transactions (amount >= 0)', () => {
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const receipt = makeReceipt({
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receipt_date: '2024-06-15',
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total_amount: 299,
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})
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const transactions = [
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makeTransaction({
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date: '2024-06-15',
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amount: 299, // income, positive
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receipt_id: null,
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}),
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]
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const matches = findTransactionMatches(receipt, transactions)
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expect(matches).toHaveLength(0)
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})
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})
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describe('autoMatchReceipts', () => {
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it('returns matches above threshold', () => {
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const receipts = [
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makeReceipt({
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id: 'r1',
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receipt_date: '2024-06-15',
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total_amount: 500,
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merchant_name: 'Coop',
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matched_transaction_id: null,
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}),
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]
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const transactions = [
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makeTransaction({
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id: 'tx1',
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date: '2024-06-15',
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amount: -500,
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merchant_name: 'Coop',
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receipt_id: null,
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}),
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]
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const results = autoMatchReceipts(receipts, transactions, 0.5)
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expect(results).toHaveLength(1)
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expect(results[0].receipt.id).toBe('r1')
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expect(results[0].match.confidence).toBeGreaterThanOrEqual(0.5)
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})
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it('respects custom threshold', () => {
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const receipts = [
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makeReceipt({
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id: 'r1',
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receipt_date: '2024-06-15',
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total_amount: 500,
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merchant_name: '',
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matched_transaction_id: null,
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}),
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]
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const transactions = [
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makeTransaction({
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id: 'tx1',
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date: '2024-06-17', // 2 days off, no merchant → moderate confidence
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amount: -500,
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merchant_name: '',
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receipt_id: null,
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}),
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]
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// With a very high threshold, it should not match
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const highThreshold = autoMatchReceipts(receipts, transactions, 0.99)
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expect(highThreshold).toHaveLength(0)
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// With a lower threshold, it should match
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const lowThreshold = autoMatchReceipts(receipts, transactions, 0.4)
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expect(lowThreshold).toHaveLength(1)
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})
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it('skips already-matched receipts', () => {
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const receipts = [
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makeReceipt({
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id: 'r1',
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receipt_date: '2024-06-15',
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total_amount: 500,
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matched_transaction_id: 'existing-tx',
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}),
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]
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const transactions = [
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makeTransaction({
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date: '2024-06-15',
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amount: -500,
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receipt_id: null,
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}),
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]
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const results = autoMatchReceipts(receipts, transactions)
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expect(results).toHaveLength(0)
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})
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})
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describe('filterUnmatchedTransactions', () => {
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it('returns only unmatched expenses', () => {
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const transactions = [
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makeTransaction({ id: 't1', receipt_id: null, amount: -100 }),
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makeTransaction({ id: 't2', receipt_id: 'r1', amount: -200 }), // matched
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makeTransaction({ id: 't3', receipt_id: null, amount: 300 }), // income
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]
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const result = filterUnmatchedTransactions(transactions)
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expect(result).toHaveLength(1)
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expect(result[0].id).toBe('t1')
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})
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})
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describe('filterUnmatchedReceipts', () => {
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it('returns only confirmed unmatched receipts', () => {
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const receipts = [
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makeReceipt({ id: 'r1', status: 'confirmed', matched_transaction_id: null }),
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makeReceipt({ id: 'r2', status: 'confirmed', matched_transaction_id: 'tx1' }),
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makeReceipt({ id: 'r3', status: 'extracted', matched_transaction_id: null }),
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]
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const result = filterUnmatchedReceipts(receipts)
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expect(result).toHaveLength(1)
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expect(result[0].id).toBe('r1')
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})
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})
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