test: add tests (#894)

1 files changed, 10 insertions, 0 deletions

diff --git a/test/helpers.spec.ts b/test/helpers.spec.ts
index a34886dd..e436e6dc 100644
--- a/test/helpers.spec.ts
+++ b/test/helpers.spec.ts
@@ -888,6 +888,11 @@ describe('helpers', () => {
 
           expect(Object.keys(testObject)).toContain(actual);
         });
+
+        it('should return undefined if given object is empty', () => {
+          const actual = faker.helpers.objectKey({});
+          expect(actual).toBeUndefined();
+        });
       });
 
       describe('objectValue', () => {
@@ -901,6 +906,11 @@ describe('helpers', () => {
 
           expect(Object.values(testObject)).toContain(actual);
         });
+
+        it('should return undefined if given object is empty', () => {
+          const actual = faker.helpers.objectValue({});
+          expect(actual).toBeUndefined();
+        });
       });
 
       describe('deprecation warnings', () => {