test cases for listParts method

Author: benzekrimaha

tests/unit/storage/data/external/GcpService.spec.js

@@ -750,4 +750,49 @@ describe('GcpService mpu helper behavior', () => {
             });
         });
     });
+
+    describe('listParts', () => {
+        it('should list parts', done => {
+            const sendSpy = jest.spyOn(client, 'send')
+                .mockResolvedValue({ Contents: [] });
+
+            const params = {
+                Bucket: 'b',
+                Key: 'obj',
+                UploadId: 'upload',
+                PartNumberMarker: 3,
+                MaxParts: 10,
+            };
+
+            client.listParts(params, (err, res) => {
+                assert.ifError(err);
+                assert(res);
+                expect(sendSpy).toHaveBeenCalledTimes(1);
+                const [command] = sendSpy.mock.calls[0];
+                expect(command).toBeInstanceOf(ListObjectsCommand);
+                expect(command.input).toEqual({
+                    Bucket: params.Bucket,
+                    Prefix: createMpuKey(params.Key, params.UploadId, 'parts'),
+                    Marker: createMpuKey(params.Key, params.UploadId,
+                        params.PartNumberMarker, 'parts'),
+                    MaxKeys: params.MaxParts,
+                });
+                done();
+            });
+        });
+
+        it('should return error when command rejects', done => {
+            const listObjectsError = new Error('send(ListObjectsCommand) failed');
+            jest.spyOn(client, 'send').mockRejectedValue(listObjectsError);
+
+            client.listParts({
+                Bucket: 'b',
+                Key: 'obj',
+                UploadId: 'upload',
+            }, err => {
+                assert.strictEqual(err, listObjectsError);
+                done();
+            });
+        });
+    });
 });