| // 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 |
| |
| import ( |
| "testing" |
| |
| "github.com/apache/arrow/go/arrow/internal/testing/tools" |
| "github.com/apache/arrow/go/arrow/memory" |
| "github.com/stretchr/testify/assert" |
| ) |
| |
| func TestBuilder_Init(t *testing.T) { |
| type exp struct{ size int } |
| tests := []struct { |
| name string |
| cap int |
| |
| exp exp |
| }{ |
| {"07 bits", 07, exp{size: 1}}, |
| {"19 bits", 19, exp{size: 3}}, |
| } |
| for _, test := range tests { |
| t.Run(test.name, func(t *testing.T) { |
| ab := &builder{mem: memory.NewGoAllocator()} |
| ab.init(test.cap) |
| assert.Equal(t, test.cap, ab.Cap(), "invalid capacity") |
| assert.Equal(t, test.exp.size, ab.nullBitmap.Len(), "invalid length") |
| }) |
| } |
| } |
| |
| func TestBuilder_UnsafeSetValid(t *testing.T) { |
| ab := &builder{mem: memory.NewGoAllocator()} |
| ab.init(32) |
| ab.unsafeAppendBoolsToBitmap(tools.Bools(0, 0, 0, 0, 0), 5) |
| assert.Equal(t, 5, ab.Len()) |
| assert.Equal(t, []byte{0, 0, 0, 0}, ab.nullBitmap.Bytes()) |
| |
| ab.unsafeSetValid(17) |
| assert.Equal(t, []byte{0xe0, 0xff, 0x3f, 0}, ab.nullBitmap.Bytes()) |
| } |
| |
| func TestBuilder_resize(t *testing.T) { |
| b := &builder{mem: memory.NewGoAllocator()} |
| n := 64 |
| |
| b.init(n) |
| assert.Equal(t, n, b.Cap()) |
| assert.Equal(t, 0, b.Len()) |
| |
| b.UnsafeAppendBoolToBitmap(true) |
| for i := 1; i < n; i++ { |
| b.UnsafeAppendBoolToBitmap(false) |
| } |
| assert.Equal(t, n, b.Cap()) |
| assert.Equal(t, n, b.Len()) |
| assert.Equal(t, n-1, b.NullN()) |
| |
| n = 5 |
| b.resize(n, b.init) |
| assert.Equal(t, n, b.Len()) |
| assert.Equal(t, n-1, b.NullN()) |
| |
| b.resize(32, b.init) |
| assert.Equal(t, n, b.Len()) |
| assert.Equal(t, n-1, b.NullN()) |
| } |