// 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 (
	"testing"

	"github.com/apache/arrow/go/arrow"
	"github.com/apache/arrow/go/arrow/array"
	"github.com/apache/arrow/go/arrow/memory"
	"github.com/stretchr/testify/assert"
)

{{range .In}}
func TestNew{{.Name}}Builder(t *testing.T) {
	mem := memory.NewCheckedAllocator(memory.NewGoAllocator())
	defer mem.AssertSize(t, 0)

{{if .Opt.Parametric -}}
	dtype := &arrow.{{.Name}}Type{Unit: arrow.Second}
	ab := array.New{{.Name}}Builder(mem, dtype)
{{else}}
	ab := array.New{{.Name}}Builder(mem)
{{end -}}
	defer ab.Release()

	ab.Retain()
	ab.Release()

	ab.Append(1)
	ab.Append(2)
	ab.Append(3)
	ab.AppendNull()
	ab.Append(5)
	ab.Append(6)
	ab.AppendNull()
	ab.Append(8)
	ab.Append(9)
	ab.Append(10)

	// check state of builder before New{{.Name}}Array
	assert.Equal(t, 10, ab.Len(), "unexpected Len()")
	assert.Equal(t, 2, ab.NullN(), "unexpected NullN()")

	a := ab.New{{.Name}}Array()

	// check state of builder after New{{.Name}}Array
	assert.Zero(t, ab.Len(), "unexpected ArrayBuilder.Len(), New{{.Name}}Array did not reset state")
	assert.Zero(t, ab.Cap(), "unexpected ArrayBuilder.Cap(), New{{.Name}}Array did not reset state")
	assert.Zero(t, ab.NullN(), "unexpected ArrayBuilder.NullN(), New{{.Name}}Array did not reset state")

	// check state of array
	assert.Equal(t, 2, a.NullN(), "unexpected null count")
	assert.Equal(t, []{{or .QualifiedType .Type}}{1, 2, 3, 0, 5, 6, 0, 8, 9, 10}, a.{{.Name}}Values(), "unexpected {{.Name}}Values")
	assert.Equal(t, []byte{0xb7}, a.NullBitmapBytes()[:1]) // 4 bytes due to minBuilderCapacity
	assert.Len(t, a.{{.Name}}Values(), 10, "unexpected length of {{.Name}}Values")

	a.Release()

	ab.Append(7)
	ab.Append(8)

	a = ab.New{{.Name}}Array()

	assert.Equal(t, 0, a.NullN())
	assert.Equal(t, []{{or .QualifiedType .Type}}{7, 8}, a.{{.Name}}Values())
	assert.Len(t, a.{{.Name}}Values(), 2)

	a.Release()

	var (
		want   = []{{or .QualifiedType .Type}}{1, 2, 3, 4}
		valids = []bool{true, true, false, true}
	)

	ab.AppendValues(want, valids)
	a = ab.New{{.Name}}Array()

	sub := array.MakeFromData(a.Data())
	defer sub.Release()

	if got, want := sub.DataType().ID(), a.DataType().ID(); got != want {
		t.Fatalf("invalid type: got=%q, want=%q", got, want)
	}

	if _, ok := sub.(*array.{{.Name}}); !ok {
		t.Fatalf("could not type-assert to array.{{.Name}}")
	}

	if got, want := a.String(), `[1 2 (null) 4]`; got != want {
		t.Fatalf("got=%q, want=%q", got, want)
	}

	slice := array.NewSliceData(a.Data(), 2, 4)
	defer slice.Release()

	sub1 := array.MakeFromData(slice)
	defer sub1.Release()

	v, ok := sub1.(*array.{{.Name}})
	if !ok {
		t.Fatalf("could not type-assert to array.{{.Name}}")
	}

	if got, want := v.String(), `[(null) 4]`; got != want {
		t.Fatalf("got=%q, want=%q", got, want)
	}

	a.Release()
}

func Test{{.Name}}Builder_AppendValues(t *testing.T) {
	mem := memory.NewCheckedAllocator(memory.NewGoAllocator())
	defer mem.AssertSize(t, 0)

{{if .Opt.Parametric -}}
	dtype := &arrow.{{.Name}}Type{Unit: arrow.Second}
	ab := array.New{{.Name}}Builder(mem, dtype)
{{else}}
	ab := array.New{{.Name}}Builder(mem)
{{end -}}
	defer ab.Release()

	exp := []{{or .QualifiedType .Type}}{0, 1, 2, 3}
	ab.AppendValues(exp, nil)
	a := ab.New{{.Name}}Array()
	assert.Equal(t, exp, a.{{.Name}}Values())

	a.Release()
}

func Test{{.Name}}Builder_Empty(t *testing.T) {
	mem := memory.NewCheckedAllocator(memory.NewGoAllocator())
	defer mem.AssertSize(t, 0)

{{if .Opt.Parametric -}}
	dtype := &arrow.{{.Name}}Type{Unit: arrow.Second}
	ab := array.New{{.Name}}Builder(mem, dtype)
{{else}}
	ab := array.New{{.Name}}Builder(mem)
{{end -}}
	defer ab.Release()

	exp := []{{or .QualifiedType .Type}}{0, 1, 2, 3}

	ab.AppendValues([]{{or .QualifiedType .Type}}{}, nil)
	a := ab.New{{.Name}}Array()
	assert.Zero(t, a.Len())
	a.Release()

	ab.AppendValues(nil, nil)
	a = ab.New{{.Name}}Array()
	assert.Zero(t, a.Len())
	a.Release()

	ab.AppendValues([]{{or .QualifiedType .Type}}{}, nil)
	ab.AppendValues(exp, nil)
	a = ab.New{{.Name}}Array()
	assert.Equal(t, exp, a.{{.Name}}Values())
	a.Release()

	ab.AppendValues(exp, nil)
	ab.AppendValues([]{{or .QualifiedType .Type}}{}, nil)
	a = ab.New{{.Name}}Array()
	assert.Equal(t, exp, a.{{.Name}}Values())
	a.Release()
}

func Test{{.Name}}Builder_Resize(t *testing.T) {
	mem := memory.NewCheckedAllocator(memory.NewGoAllocator())
	defer mem.AssertSize(t, 0)

{{if .Opt.Parametric -}}
	dtype := &arrow.{{.Name}}Type{Unit: arrow.Second}
	ab := array.New{{.Name}}Builder(mem, dtype)
{{else}}
	ab := array.New{{.Name}}Builder(mem)
{{end -}}
	defer ab.Release()

	assert.Equal(t, 0, ab.Cap())
	assert.Equal(t, 0, ab.Len())

	ab.Reserve(63)
	assert.Equal(t, 64, ab.Cap())
	assert.Equal(t, 0, ab.Len())

	for i := 0; i < 63; i++ {
		ab.Append(0)
	}
	assert.Equal(t, 64, ab.Cap())
	assert.Equal(t, 63, ab.Len())

	ab.Resize(5)
	assert.Equal(t, 5, ab.Len())

	ab.Resize(32)
	assert.Equal(t, 5, ab.Len())
}
{{end}}