Adding paging count tests

pkg/storage/inmemory/inmemory.go

@@ -95,6 +95,9 @@ func (storage *storage) ListObjects(bucket, prefix string, count int) []mstorage
 				results = append(results, object.metadata)
 			}
 		}
+		if len(results) == count {
+			return results
+		}
 	}
 	return results
 }

pkg/storage/storage_api_suite.go

@@ -57,6 +57,20 @@ func testMultipleObjectCreation(c *C, create func() Storage) {
 }
 
 func testPaging(c *C, create func() Storage) {
+	storage := create()
+	storage.StoreBucket("bucket")
+	storage.ListObjects("bucket", "", 1000)
+	c.Assert(len(storage.ListObjects("bucket", "", 1000)), Equals, 0)
+	for i := 1; i <= 1000; i++ {
+		key := "obj" + strconv.Itoa(i)
+		storage.StoreObject("bucket", key, bytes.NewBufferString(key))
+		c.Assert(len(storage.ListObjects("bucket", "", i)), Equals, i)
+	}
+	for i := 1001; i <= 2000; i++ {
+		key := "obj" + strconv.Itoa(i)
+		storage.StoreObject("bucket", key, bytes.NewBufferString(key))
+		c.Assert(len(storage.ListObjects("bucket", "", 1000)), Equals, 1000)
+	}
 }
 
 func testObjectOverwriteFails(c *C, create func() Storage) {