From bd4d3dbc5ca54983ad28745825e4767c1f291e60 Mon Sep 17 00:00:00 2001
From: ST-DDT <ST-DDT@gmx.de>
Date: Sun, 22 May 2022 13:13:09 +0200
Subject: [PATCH] test: improve luhn checks (error messages only) (#981)

---
 test/finance.spec.ts | 52 +++++++++++++++++++++-----------------------
 test/helpers.spec.ts |  8 +++----
 2 files changed, 29 insertions(+), 31 deletions(-)

diff --git a/test/finance.spec.ts b/test/finance.spec.ts
index 7ae4a0f376d..0e19aa53542 100644
--- a/test/finance.spec.ts
+++ b/test/finance.spec.ts
@@ -372,23 +372,21 @@ describe('finance', () => {
           expect(number.length).toBeGreaterThanOrEqual(13);
           expect(number.length).toBeLessThanOrEqual(20);
           expect(number).toMatch(/^\d{13,20}$/);
-          expect(luhnCheck(number)).toBeTruthy();
+          expect(number).toSatisfy(luhnCheck);
         });
 
         it('should return a valid credit card number', () => {
-          expect(luhnCheck(faker.finance.creditCardNumber(''))).toBeTruthy();
-          expect(luhnCheck(faker.finance.creditCardNumber())).toBeTruthy();
-          expect(
-            luhnCheck(faker.finance.creditCardNumber('visa'))
-          ).toBeTruthy();
-          expect(
-            luhnCheck(faker.finance.creditCardNumber('mastercard'))
-          ).toBeTruthy();
-          expect(
-            luhnCheck(faker.finance.creditCardNumber('discover'))
-          ).toBeTruthy();
-          expect(luhnCheck(faker.finance.creditCardNumber())).toBeTruthy();
-          expect(luhnCheck(faker.finance.creditCardNumber())).toBeTruthy();
+          expect(faker.finance.creditCardNumber('')).toSatisfy(luhnCheck);
+          expect(faker.finance.creditCardNumber()).toSatisfy(luhnCheck);
+          expect(faker.finance.creditCardNumber('visa')).toSatisfy(luhnCheck);
+          expect(faker.finance.creditCardNumber('mastercard')).toSatisfy(
+            luhnCheck
+          );
+          expect(faker.finance.creditCardNumber('discover')).toSatisfy(
+            luhnCheck
+          );
+          expect(faker.finance.creditCardNumber()).toSatisfy(luhnCheck);
+          expect(faker.finance.creditCardNumber()).toSatisfy(luhnCheck);
         });
 
         it('should ignore case for issuer', () => {
@@ -405,43 +403,43 @@ describe('finance', () => {
           //TODO: implement checks for each format with regexp
           const visa = faker.finance.creditCardNumber('visa');
           expect(visa).toMatch(/^4(([0-9]){12}|([0-9]){3}(\-([0-9]){4}){3})$/);
-          expect(luhnCheck(visa)).toBeTruthy();
+          expect(visa).toSatisfy(luhnCheck);
 
           const mastercard = faker.finance.creditCardNumber('mastercard');
           expect(mastercard).toMatch(/^(5[1-5]\d{2}|6771)(\-\d{4}){3}$/);
-          expect(luhnCheck(mastercard)).toBeTruthy();
+          expect(mastercard).toSatisfy(luhnCheck);
 
           const discover = faker.finance.creditCardNumber('discover');
 
-          expect(luhnCheck(discover)).toBeTruthy();
+          expect(discover).toSatisfy(luhnCheck);
 
           const american_express =
             faker.finance.creditCardNumber('american_express');
-          expect(luhnCheck(american_express)).toBeTruthy();
+          expect(american_express).toSatisfy(luhnCheck);
           const diners_club = faker.finance.creditCardNumber('diners_club');
-          expect(luhnCheck(diners_club)).toBeTruthy();
+          expect(diners_club).toSatisfy(luhnCheck);
           const jcb = faker.finance.creditCardNumber('jcb');
-          expect(luhnCheck(jcb)).toBeTruthy();
+          expect(jcb).toSatisfy(luhnCheck);
           const switchC = faker.finance.creditCardNumber('mastercard');
-          expect(luhnCheck(switchC)).toBeTruthy();
+          expect(switchC).toSatisfy(luhnCheck);
           const solo = faker.finance.creditCardNumber('solo');
-          expect(luhnCheck(solo)).toBeTruthy();
+          expect(solo).toSatisfy(luhnCheck);
           const maestro = faker.finance.creditCardNumber('maestro');
-          expect(luhnCheck(maestro)).toBeTruthy();
+          expect(maestro).toSatisfy(luhnCheck);
           const laser = faker.finance.creditCardNumber('laser');
-          expect(luhnCheck(laser)).toBeTruthy();
+          expect(laser).toSatisfy(luhnCheck);
           const instapayment = faker.finance.creditCardNumber('instapayment');
-          expect(luhnCheck(instapayment)).toBeTruthy();
+          expect(instapayment).toSatisfy(luhnCheck);
         });
 
         it('should return custom formatted strings', () => {
           let number = faker.finance.creditCardNumber('###-###-##L');
           expect(number).toMatch(/^\d{3}\-\d{3}\-\d{3}$/);
-          expect(luhnCheck(number)).toBeTruthy();
+          expect(number).toSatisfy(luhnCheck);
 
           number = faker.finance.creditCardNumber('234[5-9]#{999}L');
           expect(number).toMatch(/^234[5-9]\d{1000}$/);
-          expect(luhnCheck(number)).toBeTruthy();
+          expect(number).toSatisfy(luhnCheck);
         });
       });
 
diff --git a/test/helpers.spec.ts b/test/helpers.spec.ts
index 772e520ce9a..155d2d97efd 100644
--- a/test/helpers.spec.ts
+++ b/test/helpers.spec.ts
@@ -190,7 +190,7 @@ describe('helpers', () => {
           expect(number).toMatch(
             /^6453\-([0-9]){4}\-([0-9]){4}\-([0-9]){4}\-([0-9]){4}$/
           );
-          expect(luhnCheck(number)).toBeTruthy();
+          expect(number).toSatisfy(luhnCheck);
         });
 
         it('supports different symbols', () => {
@@ -201,7 +201,7 @@ describe('helpers', () => {
           expect(number).toMatch(
             /^6453\-([0-9]){4}\-([0-9]){4}\-([0-9]){4}\-([0-9]){4}$/
           );
-          expect(luhnCheck(number)).toBeTruthy();
+          expect(number).toSatisfy(luhnCheck);
         });
 
         it('handles regexp style input', () => {
@@ -212,14 +212,14 @@ describe('helpers', () => {
           expect(number).toMatch(
             /^6453\-([0-9]){4}\-([0-9]){4}\-([0-9]){4}\-([0-9]){4}$/
           );
-          expect(luhnCheck(number)).toBeTruthy();
+          expect(number).toSatisfy(luhnCheck);
           number = faker.helpers.replaceCreditCardSymbols(
             '645[5-9]-#{4,6}-#{1,2}-#{4,6}-#{3}L'
           );
           expect(number).toMatch(
             /^645[5-9]\-([0-9]){4,6}\-([0-9]){1,2}\-([0-9]){4,6}\-([0-9]){4}$/
           );
-          expect(luhnCheck(number)).toBeTruthy();
+          expect(number).toSatisfy(luhnCheck);
         });
       });