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// 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/v18/arrow/internal/testing/tools"
"github.com/apache/arrow-go/v18/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())
}
func TestBuilder_IsNull(t *testing.T) {
b := &builder{mem: memory.NewGoAllocator()}
n := 32
b.init(n)
assert.True(t, b.IsNull(0))
assert.True(t, b.IsNull(1))
for i := 0; i < n; i++ {
b.UnsafeAppendBoolToBitmap(i%2 == 0)
}
for i := 0; i < n; i++ {
assert.Equal(t, i%2 != 0, b.IsNull(i))
}
}
func TestBuilder_SetNull(t *testing.T) {
b := &builder{mem: memory.NewGoAllocator()}
n := 32
b.init(n)
for i := 0; i < n; i++ {
// Set everything to true
b.UnsafeAppendBoolToBitmap(true)
}
for i := 0; i < n; i++ {
if i%2 == 0 { // Set all even numbers to null
b.SetNull(i)
}
}
for i := 0; i < n; i++ {
if i%2 == 0 {
assert.True(t, b.IsNull(i))
} else {
assert.False(t, b.IsNull(i))
}
}
}
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