add test_array_fill test
+// Copyright 2020-2021 The Datafuse Authors.
+//
+// SPDX-License-Identifier: Apache-2.0.
+
+use crate::arrays::builders::*;
+use crate::prelude::*;
+use crate::DFBinaryArray;
+use crate::DFBooleanArray;
+use crate::DFListArray;
+use crate::DFStructArray;
+use crate::DFUInt16Array;
+use crate::DFUtf8Array;
+use crate::Int32Type;
+use crate::UInt16Type;
+
+#[test]
+fn test_array_fill() -> Result<()> {
+ let df_uint16_array = DFUInt16Array::fill(5u16, 3);
+ let arrow_uint16_array: &PrimitiveArray<UInt16Type> = df_uint16_array.as_ref();
+ assert_eq!(&[5u16, 5u16, 5u16], &arrow_uint16_array.values());
+
+ Ok(())
+}
\ No newline at end of file
