fix: force passed locales into faker constructor (#580)

Co-authored-by: Shinigami92 <[email protected]>

1 files changed, 23 insertions, 1 deletions

diff --git a/test/faker.spec.ts b/test/faker.spec.ts
index 54fa04ac..283cf999 100644
--- a/test/faker.spec.ts
+++ b/test/faker.spec.ts
@@ -1,11 +1,33 @@
 import { beforeEach, describe, expect, it } from 'vitest';
-import { faker } from '../src';
+import { faker, Faker } from '../src';
 
 describe('faker', () => {
   beforeEach(() => {
     faker.locale = 'en';
   });
 
+  it('should throw error if no options passed', () => {
+    expect(
+      () =>
+        // @ts-expect-error: mission options
+        new Faker()
+    ).toThrow(
+      Error('Options with at least one entry in locales must be provided')
+    );
+  });
+
+  it('should throw error if no locales passed', () => {
+    expect(
+      () =>
+        // @ts-expect-error: missing locales
+        new Faker({})
+    ).toThrow(
+      Error(
+        'At least one entry in locales must be provided in the locales parameter'
+      )
+    );
+  });
+
   // This is only here for coverage
   // The actual test is in mersenne.spec.ts
   describe('seed()', () => {