| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package array_test |
| |
| import ( |
| "bytes" |
| "testing" |
| |
| "github.com/apache/arrow/go/v6/arrow" |
| "github.com/apache/arrow/go/v6/arrow/array" |
| "github.com/apache/arrow/go/v6/arrow/memory" |
| "github.com/stretchr/testify/assert" |
| ) |
| |
| func TestBinaryBuilder(t *testing.T) { |
| mem := memory.NewCheckedAllocator(memory.NewGoAllocator()) |
| defer mem.AssertSize(t, 0) |
| |
| ab := array.NewBinaryBuilder(mem, arrow.BinaryTypes.Binary) |
| |
| exp := [][]byte{[]byte("foo"), []byte("bar"), nil, []byte("sydney"), []byte("cameron")} |
| for _, v := range exp { |
| if v == nil { |
| ab.AppendNull() |
| } else { |
| ab.Append(v) |
| } |
| } |
| |
| assert.Equal(t, len(exp), ab.Len(), "unexpected Len()") |
| assert.Equal(t, 1, ab.NullN(), "unexpected NullN()") |
| |
| for i, v := range exp { |
| if v == nil { |
| v = []byte{} |
| } |
| assert.Equal(t, v, ab.Value(i), "unexpected BinaryArrayBuilder.Value(%d)", i) |
| } |
| |
| ar := ab.NewBinaryArray() |
| ab.Release() |
| ar.Release() |
| |
| // check state of builder after NewBinaryArray |
| assert.Zero(t, ab.Len(), "unexpected ArrayBuilder.Len(), NewBinaryArray did not reset state") |
| assert.Zero(t, ab.Cap(), "unexpected ArrayBuilder.Cap(), NewBinaryArray did not reset state") |
| assert.Zero(t, ab.NullN(), "unexpected ArrayBuilder.NullN(), NewBinaryArray did not reset state") |
| } |
| |
| func TestBinaryBuilder_ReserveData(t *testing.T) { |
| mem := memory.NewCheckedAllocator(memory.NewGoAllocator()) |
| defer mem.AssertSize(t, 0) |
| |
| ab := array.NewBinaryBuilder(mem, arrow.BinaryTypes.Binary) |
| |
| // call ReserveData and ensure the capacity doesn't change |
| // when appending entries until that count. |
| ab.ReserveData(256) |
| expCap := ab.DataCap() |
| for i := 0; i < 256 / 8; i++ { |
| ab.Append(bytes.Repeat([]byte("a"), 8)) |
| } |
| assert.Equal(t, expCap, ab.DataCap(), "unexpected BinaryArrayBuilder.DataCap()") |
| |
| ar := ab.NewBinaryArray() |
| ab.Release() |
| ar.Release() |
| |
| // check state of builder after NewBinaryArray |
| assert.Zero(t, ab.Len(), "unexpected ArrayBuilder.Len(), NewBinaryArray did not reset state") |
| assert.Zero(t, ab.Cap(), "unexpected ArrayBuilder.Cap(), NewBinaryArray did not reset state") |
| assert.Zero(t, ab.NullN(), "unexpected ArrayBuilder.NullN(), NewBinaryArray did not reset state") |
| } |