4 files changed, 37 insertions, 36 deletions

diff --git a/test/modules/date.spec.ts b/test/modules/date.spec.ts
index e30da8d9..19a2d0a7 100644
--- a/test/modules/date.spec.ts
+++ b/test/modules/date.spec.ts
@@ -12,6 +12,19 @@ const converterMap = [
 const NON_SEEDED_BASED_RUN = 5;
 const refDate = '2021-02-21T17:09:15.711Z';
 
+function calculateAge(birthdate: Date, refDate: Date): number {
+  let age = refDate.getFullYear() - birthdate.getFullYear();
+  if (
+    refDate.getMonth() < birthdate.getMonth() ||
+    (refDate.getMonth() === birthdate.getMonth() &&
+      refDate.getDate() < birthdate.getDate())
+  ) {
+    age--;
+  }
+
+  return age;
+}
+
 describe('date', () => {
   seededTests(faker, 'date', (t) => {
     t.describe('anytime', (t) => {
@@ -530,19 +543,6 @@ describe('date', () => {
       });
 
       describe('birthdate', () => {
-        function calculateAge(birthdate: Date, refDate: Date): number {
-          let age = refDate.getFullYear() - birthdate.getFullYear();
-          if (
-            refDate.getMonth() < birthdate.getMonth() ||
-            (refDate.getMonth() === birthdate.getMonth() &&
-              refDate.getDate() < birthdate.getDate())
-          ) {
-            age--;
-          }
-
-          return age;
-        }
-
         it('returns a random birthdate', () => {
           const birthdate = faker.date.birthdate();
           expect(birthdate).toBeInstanceOf(Date);
diff --git a/test/modules/git.spec.ts b/test/modules/git.spec.ts
index e4692b20..164b19c6 100644
--- a/test/modules/git.spec.ts
+++ b/test/modules/git.spec.ts
@@ -8,6 +8,16 @@ const NON_SEEDED_BASED_RUN = 5;
 
 const refDate = '2020-01-01T00:00:00.000Z';
 
+function isValidCommitAuthor(email: string): boolean {
+  // `validator.isEmail()` does not support display names
+  // that contain unquoted characters like . output by Git so we need
+  // to quote the display name
+  const quotedEmail = email.replace(/^(.*) </, '"$1" <');
+  return validator.isEmail(quotedEmail, {
+    require_display_name: true,
+  });
+}
+
 describe('git', () => {
   seededTests(faker, 'git', (t) => {
     t.itEach('branch', 'commitMessage');
@@ -56,27 +66,18 @@ describe('git', () => {
           expect(parts.length).toBeLessThanOrEqual(7);
 
           expect(parts[0]).toMatch(/^commit [a-f0-9]+$/);
-          const isValidAuthor = (email: string) => {
-            // `validator.isEmail()` does not support display names
-            // that contain unquoted characters like . output by Git so we need
-            // to quote the display name
-            const quotedEmail = email.replace(/^(.*) </, '"$1" <');
-            return validator.isEmail(quotedEmail, {
-              require_display_name: true,
-            });
-          };
 
           const authorRegex = /^Author: .*$/;
           if (parts.length === 7) {
             expect(parts[1]).toMatch(/^Merge: [a-f0-9]+ [a-f0-9]+$/);
             expect(parts[2]).toMatch(authorRegex);
-            expect(parts[2].substring(8)).toSatisfy(isValidAuthor);
+            expect(parts[2].substring(8)).toSatisfy(isValidCommitAuthor);
             expect(parts[3]).toMatch(/^Date: .+$/);
             expect(parts[4]).toBe('');
             expect(parts[5]).toMatch(/^\s{4}.+$/);
           } else {
             expect(parts[1]).toMatch(authorRegex);
-            expect(parts[1].substring(8)).toSatisfy(isValidAuthor);
+            expect(parts[1].substring(8)).toSatisfy(isValidCommitAuthor);
             expect(parts[2]).toMatch(/^Date: .+$/);
             expect(parts[3]).toBe('');
             expect(parts[4]).toMatch(/^\s{4}.+$/);
diff --git a/test/modules/number.spec.ts b/test/modules/number.spec.ts
index cfd50b20..3b21f64c 100644
--- a/test/modules/number.spec.ts
+++ b/test/modules/number.spec.ts
@@ -5,6 +5,14 @@ import { seededTests } from '../support/seeded-runs';
 import { MERSENNE_MAX_VALUE } from '../utils/mersenne-test-utils';
 import { times } from './../support/times';
 
+function isFloat(value: number): boolean {
+  return value % 1 !== 0;
+}
+
+function isBinary(str: string): boolean {
+  return [...str].every((char) => char === '0' || char === '1');
+}
+
 describe('number', () => {
   seededTests(faker, 'number', (t) => {
     t.describeEach(
@@ -259,10 +267,6 @@ describe('number', () => {
     });
 
     describe('float', () => {
-      function isFloat(value: number) {
-        return value % 1 !== 0;
-      }
-
       it('should return a float between 0 and 1 (inclusive) by default', () => {
         const actual = faker.number.float();
 
@@ -405,10 +409,6 @@ describe('number', () => {
     });
 
     describe('binary', () => {
-      function isBinary(str: string) {
-        return [...str].every((char) => char === '0' || char === '1');
-      }
-
       it('generates single binary character when no additional argument was provided', () => {
         const binary = faker.number.binary();
 
diff --git a/test/utils/mersenne.spec.ts b/test/utils/mersenne.spec.ts
index 5e9e4c27..4699b9b0 100644
--- a/test/utils/mersenne.spec.ts
+++ b/test/utils/mersenne.spec.ts
@@ -23,6 +23,10 @@ function newTwister(
   return twister;
 }
 
+function randomSeed(): number {
+  return Math.ceil(Math.random() * 1_000_000_000);
+}
+
 describe('MersenneTwister19937', () => {
   describe('genrandInt32()', () => {
     it('should be able to return 0', () => {
@@ -112,10 +116,6 @@ describe.each([
     });
   });
 
-  function randomSeed(): number {
-    return Math.ceil(Math.random() * 1_000_000_000);
-  }
-
   // Create and log-back the seed for debug purposes
   describe.each(
     times(NON_SEEDED_BASED_RUN).flatMap(() => [