package excelize

import (
	"bytes"
	"fmt"
	"path/filepath"
	"testing"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

func TestRows(t *testing.T) {
	const sheet2 = "Sheet2"

	f, err := OpenFile(filepath.Join("test", "Book1.xlsx"))
	if !assert.NoError(t, err) {
		t.FailNow()
	}

	rows, err := f.Rows(sheet2)
	if !assert.NoError(t, err) {
		t.FailNow()
	}

	var collectedRows [][]string
	for rows.Next() {
		columns, err := rows.Columns()
		assert.NoError(t, err)
		collectedRows = append(collectedRows, trimSliceSpace(columns))
	}
	if !assert.NoError(t, rows.Error()) {
		t.FailNow()
	}

	returnedRows, err := f.GetRows(sheet2)
	assert.NoError(t, err)
	for i := range returnedRows {
		returnedRows[i] = trimSliceSpace(returnedRows[i])
	}
	if !assert.Equal(t, collectedRows, returnedRows) {
		t.FailNow()
	}

	f = NewFile()
	f.XLSX["xl/worksheets/sheet1.xml"] = []byte(`<worksheet><sheetData><row r="1"><c r="A1" t="s"><v>1</v></c></row><row r="A"><c r="2" t="str"><v>B</v></c></row></sheetData></worksheet>`)
	_, err = f.Rows("Sheet1")
	assert.EqualError(t, err, `strconv.Atoi: parsing "A": invalid syntax`)
}

func TestRowsIterator(t *testing.T) {
	const (
		sheet2         = "Sheet2"
		expectedNumRow = 11
	)
	f, err := OpenFile(filepath.Join("test", "Book1.xlsx"))
	require.NoError(t, err)

	rows, err := f.Rows(sheet2)
	require.NoError(t, err)
	var rowCount int
	for rows.Next() {
		rowCount++
		require.True(t, rowCount <= expectedNumRow, "rowCount is greater than expected")
	}
	assert.Equal(t, expectedNumRow, rowCount)

	// Valued cell sparse distribution test
	f = NewFile()
	cells := []string{"C1", "E1", "A3", "B3", "C3", "D3", "E3"}
	for _, cell := range cells {
		assert.NoError(t, f.SetCellValue("Sheet1", cell, 1))
	}
	rows, err = f.Rows("Sheet1")
	require.NoError(t, err)
	rowCount = 0
	for rows.Next() {
		rowCount++
		require.True(t, rowCount <= 3, "rowCount is greater than expected")
	}
	assert.Equal(t, 3, rowCount)
}

func TestRowsError(t *testing.T) {
	xlsx, err := OpenFile(filepath.Join("test", "Book1.xlsx"))
	if !assert.NoError(t, err) {
		t.FailNow()
	}
	_, err = xlsx.Rows("SheetN")
	assert.EqualError(t, err, "sheet SheetN is not exist")
}

func TestRowHeight(t *testing.T) {
	f := NewFile()
	sheet1 := f.GetSheetName(0)

	assert.EqualError(t, f.SetRowHeight(sheet1, 0, defaultRowHeightPixels+1.0), "invalid row number 0")

	_, err := f.GetRowHeight("Sheet1", 0)
	assert.EqualError(t, err, "invalid row number 0")

	assert.NoError(t, f.SetRowHeight(sheet1, 1, 111.0))
	height, err := f.GetRowHeight(sheet1, 1)
	assert.NoError(t, err)
	assert.Equal(t, 111.0, height)

	// Test set row height overflow max row height limit.
	assert.EqualError(t, f.SetRowHeight(sheet1, 4, MaxRowHeight+1), "the height of the row must be smaller than or equal to 409 points")

	// Test get row height that rows index over exists rows.
	height, err = f.GetRowHeight(sheet1, 5)
	assert.NoError(t, err)
	assert.Equal(t, defaultRowHeight, height)

	// Test get row height that rows heights haven't changed.
	height, err = f.GetRowHeight(sheet1, 3)
	assert.NoError(t, err)
	assert.Equal(t, defaultRowHeight, height)

	// Test set and get row height on not exists worksheet.
	assert.EqualError(t, f.SetRowHeight("SheetN", 1, 111.0), "sheet SheetN is not exist")
	_, err = f.GetRowHeight("SheetN", 3)
	assert.EqualError(t, err, "sheet SheetN is not exist")

	err = f.SaveAs(filepath.Join("test", "TestRowHeight.xlsx"))
	if !assert.NoError(t, err) {
		t.FailNow()
	}

	convertColWidthToPixels(0)
}

func TestColumns(t *testing.T) {
	f := NewFile()
	rows, err := f.Rows("Sheet1")
	assert.NoError(t, err)

	rows.decoder = f.xmlNewDecoder(bytes.NewReader([]byte(`<worksheet><sheetData><row r="2"><c r="A1" t="s"><v>1</v></c></row></sheetData></worksheet>`)))
	_, err = rows.Columns()
	assert.NoError(t, err)
	rows.decoder = f.xmlNewDecoder(bytes.NewReader([]byte(`<worksheet><sheetData><row r="2"><c r="A1" t="s"><v>1</v></c></row></sheetData></worksheet>`)))
	rows.curRow = 1
	_, err = rows.Columns()
	assert.NoError(t, err)

	rows.decoder = f.xmlNewDecoder(bytes.NewReader([]byte(`<worksheet><sheetData><row r="A"><c r="A1" t="s"><v>1</v></c></row><row r="A"><c r="2" t="str"><v>B</v></c></row></sheetData></worksheet>`)))
	rows.stashRow, rows.curRow = 0, 1
	_, err = rows.Columns()
	assert.EqualError(t, err, `strconv.Atoi: parsing "A": invalid syntax`)

	rows.decoder = f.xmlNewDecoder(bytes.NewReader([]byte(`<worksheet><sheetData><row r="1"><c r="A1" t="s"><v>1</v></c></row><row r="A"><c r="2" t="str"><v>B</v></c></row></sheetData></worksheet>`)))
	_, err = rows.Columns()
	assert.NoError(t, err)

	rows.curRow = 3
	rows.decoder = f.xmlNewDecoder(bytes.NewReader([]byte(`<worksheet><sheetData><row r="1"><c r="A" t="s"><v>1</v></c></row></sheetData></worksheet>`)))
	_, err = rows.Columns()
	assert.EqualError(t, err, `cannot convert cell "A" to coordinates: invalid cell name "A"`)

	// Test token is nil
	rows.decoder = f.xmlNewDecoder(bytes.NewReader(nil))
	_, err = rows.Columns()
	assert.NoError(t, err)
}

func TestSharedStringsReader(t *testing.T) {
	f := NewFile()
	f.XLSX["xl/sharedStrings.xml"] = MacintoshCyrillicCharset
	f.sharedStringsReader()
	si := xlsxSI{}
	assert.EqualValues(t, "", si.String())
}

func TestRowVisibility(t *testing.T) {
	f, err := prepareTestBook1()
	if !assert.NoError(t, err) {
		t.FailNow()
	}
	f.NewSheet("Sheet3")
	assert.NoError(t, f.SetRowVisible("Sheet3", 2, false))
	assert.NoError(t, f.SetRowVisible("Sheet3", 2, true))
	visiable, err := f.GetRowVisible("Sheet3", 2)
	assert.Equal(t, true, visiable)
	assert.NoError(t, err)
	visiable, err = f.GetRowVisible("Sheet3", 25)
	assert.Equal(t, false, visiable)
	assert.NoError(t, err)
	assert.EqualError(t, f.SetRowVisible("Sheet3", 0, true), "invalid row number 0")
	assert.EqualError(t, f.SetRowVisible("SheetN", 2, false), "sheet SheetN is not exist")

	visible, err := f.GetRowVisible("Sheet3", 0)
	assert.Equal(t, false, visible)
	assert.EqualError(t, err, "invalid row number 0")
	_, err = f.GetRowVisible("SheetN", 1)
	assert.EqualError(t, err, "sheet SheetN is not exist")

	assert.NoError(t, f.SaveAs(filepath.Join("test", "TestRowVisibility.xlsx")))
}

func TestRemoveRow(t *testing.T) {
	f := NewFile()
	sheet1 := f.GetSheetName(0)
	r, err := f.workSheetReader(sheet1)
	assert.NoError(t, err)
	const (
		colCount = 10
		rowCount = 10
	)
	fillCells(f, sheet1, colCount, rowCount)

	assert.NoError(t, f.SetCellHyperLink(sheet1, "A5", "https://github.com/360EntSecGroup-Skylar/excelize", "External"))

	assert.EqualError(t, f.RemoveRow(sheet1, -1), "invalid row number -1")

	assert.EqualError(t, f.RemoveRow(sheet1, 0), "invalid row number 0")

	assert.NoError(t, f.RemoveRow(sheet1, 4))
	if !assert.Len(t, r.SheetData.Row, rowCount-1) {
		t.FailNow()
	}

	assert.NoError(t, f.MergeCell(sheet1, "B3", "B5"))

	assert.NoError(t, f.RemoveRow(sheet1, 2))
	if !assert.Len(t, r.SheetData.Row, rowCount-2) {
		t.FailNow()
	}

	assert.NoError(t, f.RemoveRow(sheet1, 4))
	if !assert.Len(t, r.SheetData.Row, rowCount-3) {
		t.FailNow()
	}

	err = f.AutoFilter(sheet1, "A2", "A2", `{"column":"A","expression":"x != blanks"}`)
	if !assert.NoError(t, err) {
		t.FailNow()
	}

	assert.NoError(t, f.RemoveRow(sheet1, 1))
	if !assert.Len(t, r.SheetData.Row, rowCount-4) {
		t.FailNow()
	}

	assert.NoError(t, f.RemoveRow(sheet1, 2))
	if !assert.Len(t, r.SheetData.Row, rowCount-5) {
		t.FailNow()
	}

	assert.NoError(t, f.RemoveRow(sheet1, 1))
	if !assert.Len(t, r.SheetData.Row, rowCount-6) {
		t.FailNow()
	}

	assert.NoError(t, f.RemoveRow(sheet1, 10))
	assert.NoError(t, f.SaveAs(filepath.Join("test", "TestRemoveRow.xlsx")))

	// Test remove row on not exist worksheet
	assert.EqualError(t, f.RemoveRow("SheetN", 1), `sheet SheetN is not exist`)
}

func TestInsertRow(t *testing.T) {
	xlsx := NewFile()
	sheet1 := xlsx.GetSheetName(0)
	r, err := xlsx.workSheetReader(sheet1)
	assert.NoError(t, err)
	const (
		colCount = 10
		rowCount = 10
	)
	fillCells(xlsx, sheet1, colCount, rowCount)

	assert.NoError(t, xlsx.SetCellHyperLink(sheet1, "A5", "https://github.com/360EntSecGroup-Skylar/excelize", "External"))

	assert.EqualError(t, xlsx.InsertRow(sheet1, -1), "invalid row number -1")

	assert.EqualError(t, xlsx.InsertRow(sheet1, 0), "invalid row number 0")

	assert.NoError(t, xlsx.InsertRow(sheet1, 1))
	if !assert.Len(t, r.SheetData.Row, rowCount+1) {
		t.FailNow()
	}

	assert.NoError(t, xlsx.InsertRow(sheet1, 4))
	if !assert.Len(t, r.SheetData.Row, rowCount+2) {
		t.FailNow()
	}

	assert.NoError(t, xlsx.SaveAs(filepath.Join("test", "TestInsertRow.xlsx")))
}

// Testing internal sructure state after insert operations.
// It is important for insert workflow to be constant to avoid side effect with functions related to internal structure.
func TestInsertRowInEmptyFile(t *testing.T) {
	xlsx := NewFile()
	sheet1 := xlsx.GetSheetName(0)
	r, err := xlsx.workSheetReader(sheet1)
	assert.NoError(t, err)
	assert.NoError(t, xlsx.InsertRow(sheet1, 1))
	assert.Len(t, r.SheetData.Row, 0)
	assert.NoError(t, xlsx.InsertRow(sheet1, 2))
	assert.Len(t, r.SheetData.Row, 0)
	assert.NoError(t, xlsx.InsertRow(sheet1, 99))
	assert.Len(t, r.SheetData.Row, 0)
	assert.NoError(t, xlsx.SaveAs(filepath.Join("test", "TestInsertRowInEmptyFile.xlsx")))
}

func TestDuplicateRowFromSingleRow(t *testing.T) {
	const sheet = "Sheet1"
	outFile := filepath.Join("test", "TestDuplicateRow.%s.xlsx")

	cells := map[string]string{
		"A1": "A1 Value",
		"A2": "A2 Value",
		"A3": "A3 Value",
		"B1": "B1 Value",
		"B2": "B2 Value",
		"B3": "B3 Value",
	}

	t.Run("FromSingleRow", func(t *testing.T) {
		xlsx := NewFile()
		assert.NoError(t, xlsx.SetCellStr(sheet, "A1", cells["A1"]))
		assert.NoError(t, xlsx.SetCellStr(sheet, "B1", cells["B1"]))

		assert.NoError(t, xlsx.DuplicateRow(sheet, 1))
		if !assert.NoError(t, xlsx.SaveAs(fmt.Sprintf(outFile, "TestDuplicateRow.FromSingleRow_1"))) {
			t.FailNow()
		}
		expect := map[string]string{
			"A1": cells["A1"], "B1": cells["B1"],
			"A2": cells["A1"], "B2": cells["B1"],
		}
		for cell, val := range expect {
			v, err := xlsx.GetCellValue(sheet, cell)
			assert.NoError(t, err)
			if !assert.Equal(t, val, v, cell) {
				t.FailNow()
			}
		}

		assert.NoError(t, xlsx.DuplicateRow(sheet, 2))
		if !assert.NoError(t, xlsx.SaveAs(fmt.Sprintf(outFile, "TestDuplicateRow.FromSingleRow_2"))) {
			t.FailNow()
		}
		expect = map[string]string{
			"A1": cells["A1"], "B1": cells["B1"],
			"A2": cells["A1"], "B2": cells["B1"],
			"A3": cells["A1"], "B3": cells["B1"],
		}
		for cell, val := range expect {
			v, err := xlsx.GetCellValue(sheet, cell)
			assert.NoError(t, err)
			if !assert.Equal(t, val, v, cell) {
				t.FailNow()
			}
		}
	})
}

func TestDuplicateRowUpdateDuplicatedRows(t *testing.T) {
	const sheet = "Sheet1"
	outFile := filepath.Join("test", "TestDuplicateRow.%s.xlsx")

	cells := map[string]string{
		"A1": "A1 Value",
		"A2": "A2 Value",
		"A3": "A3 Value",
		"B1": "B1 Value",
		"B2": "B2 Value",
		"B3": "B3 Value",
	}

	t.Run("UpdateDuplicatedRows", func(t *testing.T) {
		xlsx := NewFile()
		assert.NoError(t, xlsx.SetCellStr(sheet, "A1", cells["A1"]))
		assert.NoError(t, xlsx.SetCellStr(sheet, "B1", cells["B1"]))

		assert.NoError(t, xlsx.DuplicateRow(sheet, 1))

		assert.NoError(t, xlsx.SetCellStr(sheet, "A2", cells["A2"]))
		assert.NoError(t, xlsx.SetCellStr(sheet, "B2", cells["B2"]))

		if !assert.NoError(t, xlsx.SaveAs(fmt.Sprintf(outFile, "TestDuplicateRow.UpdateDuplicatedRows"))) {
			t.FailNow()
		}
		expect := map[string]string{
			"A1": cells["A1"], "B1": cells["B1"],
			"A2": cells["A2"], "B2": cells["B2"],
		}
		for cell, val := range expect {
			v, err := xlsx.GetCellValue(sheet, cell)
			assert.NoError(t, err)
			if !assert.Equal(t, val, v, cell) {
				t.FailNow()
			}
		}
	})
}

func TestDuplicateRowFirstOfMultipleRows(t *testing.T) {
	const sheet = "Sheet1"
	outFile := filepath.Join("test", "TestDuplicateRow.%s.xlsx")

	cells := map[string]string{
		"A1": "A1 Value",
		"A2": "A2 Value",
		"A3": "A3 Value",
		"B1": "B1 Value",
		"B2": "B2 Value",
		"B3": "B3 Value",
	}

	newFileWithDefaults := func() *File {
		f := NewFile()
		for cell, val := range cells {
			assert.NoError(t, f.SetCellStr(sheet, cell, val))
		}
		return f
	}

	t.Run("FirstOfMultipleRows", func(t *testing.T) {
		xlsx := newFileWithDefaults()

		assert.NoError(t, xlsx.DuplicateRow(sheet, 1))

		if !assert.NoError(t, xlsx.SaveAs(fmt.Sprintf(outFile, "TestDuplicateRow.FirstOfMultipleRows"))) {
			t.FailNow()
		}
		expect := map[string]string{
			"A1": cells["A1"], "B1": cells["B1"],
			"A2": cells["A1"], "B2": cells["B1"],
			"A3": cells["A2"], "B3": cells["B2"],
			"A4": cells["A3"], "B4": cells["B3"],
		}
		for cell, val := range expect {
			v, err := xlsx.GetCellValue(sheet, cell)
			assert.NoError(t, err)
			if !assert.Equal(t, val, v, cell) {
				t.FailNow()
			}
		}
	})
}

func TestDuplicateRowZeroWithNoRows(t *testing.T) {
	const sheet = "Sheet1"
	outFile := filepath.Join("test", "TestDuplicateRow.%s.xlsx")

	t.Run("ZeroWithNoRows", func(t *testing.T) {
		xlsx := NewFile()

		assert.EqualError(t, xlsx.DuplicateRow(sheet, 0), "invalid row number 0")

		if !assert.NoError(t, xlsx.SaveAs(fmt.Sprintf(outFile, "TestDuplicateRow.ZeroWithNoRows"))) {
			t.FailNow()
		}

		val, err := xlsx.GetCellValue(sheet, "A1")
		assert.NoError(t, err)
		assert.Equal(t, "", val)
		val, err = xlsx.GetCellValue(sheet, "B1")
		assert.NoError(t, err)
		assert.Equal(t, "", val)
		val, err = xlsx.GetCellValue(sheet, "A2")
		assert.NoError(t, err)
		assert.Equal(t, "", val)
		val, err = xlsx.GetCellValue(sheet, "B2")
		assert.NoError(t, err)
		assert.Equal(t, "", val)

		assert.NoError(t, err)
		expect := map[string]string{
			"A1": "", "B1": "",
			"A2": "", "B2": "",
		}

		for cell, val := range expect {
			v, err := xlsx.GetCellValue(sheet, cell)
			assert.NoError(t, err)
			if !assert.Equal(t, val, v, cell) {
				t.FailNow()
			}
		}
	})
}

func TestDuplicateRowMiddleRowOfEmptyFile(t *testing.T) {
	const sheet = "Sheet1"
	outFile := filepath.Join("test", "TestDuplicateRow.%s.xlsx")

	t.Run("MiddleRowOfEmptyFile", func(t *testing.T) {
		xlsx := NewFile()

		assert.NoError(t, xlsx.DuplicateRow(sheet, 99))

		if !assert.NoError(t, xlsx.SaveAs(fmt.Sprintf(outFile, "TestDuplicateRow.MiddleRowOfEmptyFile"))) {
			t.FailNow()
		}
		expect := map[string]string{
			"A98":  "",
			"A99":  "",
			"A100": "",
		}
		for cell, val := range expect {
			v, err := xlsx.GetCellValue(sheet, cell)
			assert.NoError(t, err)
			if !assert.Equal(t, val, v, cell) {
				t.FailNow()
			}
		}
	})
}

func TestDuplicateRowWithLargeOffsetToMiddleOfData(t *testing.T) {
	const sheet = "Sheet1"
	outFile := filepath.Join("test", "TestDuplicateRow.%s.xlsx")

	cells := map[string]string{
		"A1": "A1 Value",
		"A2": "A2 Value",
		"A3": "A3 Value",
		"B1": "B1 Value",
		"B2": "B2 Value",
		"B3": "B3 Value",
	}

	newFileWithDefaults := func() *File {
		f := NewFile()
		for cell, val := range cells {
			assert.NoError(t, f.SetCellStr(sheet, cell, val))
		}
		return f
	}

	t.Run("WithLargeOffsetToMiddleOfData", func(t *testing.T) {
		xlsx := newFileWithDefaults()

		assert.NoError(t, xlsx.DuplicateRowTo(sheet, 1, 3))

		if !assert.NoError(t, xlsx.SaveAs(fmt.Sprintf(outFile, "TestDuplicateRow.WithLargeOffsetToMiddleOfData"))) {
			t.FailNow()
		}
		expect := map[string]string{
			"A1": cells["A1"], "B1": cells["B1"],
			"A2": cells["A2"], "B2": cells["B2"],
			"A3": cells["A1"], "B3": cells["B1"],
			"A4": cells["A3"], "B4": cells["B3"],
		}
		for cell, val := range expect {
			v, err := xlsx.GetCellValue(sheet, cell)
			assert.NoError(t, err)
			if !assert.Equal(t, val, v, cell) {
				t.FailNow()
			}
		}
	})
}

func TestDuplicateRowWithLargeOffsetToEmptyRows(t *testing.T) {
	const sheet = "Sheet1"
	outFile := filepath.Join("test", "TestDuplicateRow.%s.xlsx")

	cells := map[string]string{
		"A1": "A1 Value",
		"A2": "A2 Value",
		"A3": "A3 Value",
		"B1": "B1 Value",
		"B2": "B2 Value",
		"B3": "B3 Value",
	}

	newFileWithDefaults := func() *File {
		f := NewFile()
		for cell, val := range cells {
			assert.NoError(t, f.SetCellStr(sheet, cell, val))
		}
		return f
	}

	t.Run("WithLargeOffsetToEmptyRows", func(t *testing.T) {
		xlsx := newFileWithDefaults()

		assert.NoError(t, xlsx.DuplicateRowTo(sheet, 1, 7))

		if !assert.NoError(t, xlsx.SaveAs(fmt.Sprintf(outFile, "TestDuplicateRow.WithLargeOffsetToEmptyRows"))) {
			t.FailNow()
		}
		expect := map[string]string{
			"A1": cells["A1"], "B1": cells["B1"],
			"A2": cells["A2"], "B2": cells["B2"],
			"A3": cells["A3"], "B3": cells["B3"],
			"A7": cells["A1"], "B7": cells["B1"],
		}
		for cell, val := range expect {
			v, err := xlsx.GetCellValue(sheet, cell)
			assert.NoError(t, err)
			if !assert.Equal(t, val, v, cell) {
				t.FailNow()
			}
		}
	})
}

func TestDuplicateRowInsertBefore(t *testing.T) {
	const sheet = "Sheet1"
	outFile := filepath.Join("test", "TestDuplicateRow.%s.xlsx")

	cells := map[string]string{
		"A1": "A1 Value",
		"A2": "A2 Value",
		"A3": "A3 Value",
		"B1": "B1 Value",
		"B2": "B2 Value",
		"B3": "B3 Value",
	}

	newFileWithDefaults := func() *File {
		f := NewFile()
		for cell, val := range cells {
			assert.NoError(t, f.SetCellStr(sheet, cell, val))
		}
		return f
	}

	t.Run("InsertBefore", func(t *testing.T) {
		xlsx := newFileWithDefaults()

		assert.NoError(t, xlsx.DuplicateRowTo(sheet, 2, 1))

		if !assert.NoError(t, xlsx.SaveAs(fmt.Sprintf(outFile, "TestDuplicateRow.InsertBefore"))) {
			t.FailNow()
		}

		expect := map[string]string{
			"A1": cells["A2"], "B1": cells["B2"],
			"A2": cells["A1"], "B2": cells["B1"],
			"A3": cells["A2"], "B3": cells["B2"],
			"A4": cells["A3"], "B4": cells["B3"],
		}
		for cell, val := range expect {
			v, err := xlsx.GetCellValue(sheet, cell)
			assert.NoError(t, err)
			if !assert.Equal(t, val, v, cell) {
				t.FailNow()
			}
		}
	})
}

func TestDuplicateRowInsertBeforeWithLargeOffset(t *testing.T) {
	const sheet = "Sheet1"
	outFile := filepath.Join("test", "TestDuplicateRow.%s.xlsx")

	cells := map[string]string{
		"A1": "A1 Value",
		"A2": "A2 Value",
		"A3": "A3 Value",
		"B1": "B1 Value",
		"B2": "B2 Value",
		"B3": "B3 Value",
	}

	newFileWithDefaults := func() *File {
		f := NewFile()
		for cell, val := range cells {
			assert.NoError(t, f.SetCellStr(sheet, cell, val))
		}
		return f
	}

	t.Run("InsertBeforeWithLargeOffset", func(t *testing.T) {
		xlsx := newFileWithDefaults()

		assert.NoError(t, xlsx.DuplicateRowTo(sheet, 3, 1))

		if !assert.NoError(t, xlsx.SaveAs(fmt.Sprintf(outFile, "TestDuplicateRow.InsertBeforeWithLargeOffset"))) {
			t.FailNow()
		}

		expect := map[string]string{
			"A1": cells["A3"], "B1": cells["B3"],
			"A2": cells["A1"], "B2": cells["B1"],
			"A3": cells["A2"], "B3": cells["B2"],
			"A4": cells["A3"], "B4": cells["B3"],
		}
		for cell, val := range expect {
			v, err := xlsx.GetCellValue(sheet, cell)
			assert.NoError(t, err)
			if !assert.Equal(t, val, v) {
				t.FailNow()
			}
		}
	})
}

func TestDuplicateRowInsertBeforeWithMergeCells(t *testing.T) {
	const sheet = "Sheet1"
	outFile := filepath.Join("test", "TestDuplicateRow.%s.xlsx")

	cells := map[string]string{
		"A1": "A1 Value",
		"A2": "A2 Value",
		"A3": "A3 Value",
		"B1": "B1 Value",
		"B2": "B2 Value",
		"B3": "B3 Value",
	}

	newFileWithDefaults := func() *File {
		f := NewFile()
		for cell, val := range cells {
			assert.NoError(t, f.SetCellStr(sheet, cell, val))
		}
		assert.NoError(t, f.MergeCell(sheet, "B2", "C2"))
		assert.NoError(t, f.MergeCell(sheet, "C6", "C8"))
		return f
	}

	t.Run("InsertBeforeWithLargeOffset", func(t *testing.T) {
		xlsx := newFileWithDefaults()

		assert.NoError(t, xlsx.DuplicateRowTo(sheet, 2, 1))
		assert.NoError(t, xlsx.DuplicateRowTo(sheet, 1, 8))

		if !assert.NoError(t, xlsx.SaveAs(fmt.Sprintf(outFile, "TestDuplicateRow.InsertBeforeWithMergeCells"))) {
			t.FailNow()
		}

		expect := []MergeCell{
			{"B3:C3", "B2 Value"},
			{"C7:C10", ""},
			{"B1:C1", "B2 Value"},
		}

		mergeCells, err := xlsx.GetMergeCells(sheet)
		assert.NoError(t, err)
		for idx, val := range expect {
			if !assert.Equal(t, val, mergeCells[idx]) {
				t.FailNow()
			}
		}
	})
}

func TestDuplicateRowInvalidRownum(t *testing.T) {
	const sheet = "Sheet1"
	outFile := filepath.Join("test", "TestDuplicateRowInvalidRownum.%s.xlsx")

	cells := map[string]string{
		"A1": "A1 Value",
		"A2": "A2 Value",
		"A3": "A3 Value",
		"B1": "B1 Value",
		"B2": "B2 Value",
		"B3": "B3 Value",
	}

	invalidIndexes := []int{-100, -2, -1, 0}

	for _, row := range invalidIndexes {
		name := fmt.Sprintf("%d", row)
		t.Run(name, func(t *testing.T) {
			xlsx := NewFile()
			for col, val := range cells {
				assert.NoError(t, xlsx.SetCellStr(sheet, col, val))
			}

			assert.EqualError(t, xlsx.DuplicateRow(sheet, row), fmt.Sprintf("invalid row number %d", row))

			for col, val := range cells {
				v, err := xlsx.GetCellValue(sheet, col)
				assert.NoError(t, err)
				if !assert.Equal(t, val, v) {
					t.FailNow()
				}
			}
			assert.NoError(t, xlsx.SaveAs(fmt.Sprintf(outFile, name)))
		})
	}

	for _, row1 := range invalidIndexes {
		for _, row2 := range invalidIndexes {
			name := fmt.Sprintf("[%d,%d]", row1, row2)
			t.Run(name, func(t *testing.T) {
				xlsx := NewFile()
				for col, val := range cells {
					assert.NoError(t, xlsx.SetCellStr(sheet, col, val))
				}

				assert.EqualError(t, xlsx.DuplicateRowTo(sheet, row1, row2), fmt.Sprintf("invalid row number %d", row1))

				for col, val := range cells {
					v, err := xlsx.GetCellValue(sheet, col)
					assert.NoError(t, err)
					if !assert.Equal(t, val, v) {
						t.FailNow()
					}
				}
				assert.NoError(t, xlsx.SaveAs(fmt.Sprintf(outFile, name)))
			})
		}
	}
}

func TestDuplicateRowTo(t *testing.T) {
	f := File{}
	assert.EqualError(t, f.DuplicateRowTo("SheetN", 1, 2), "sheet SheetN is not exist")
}

func TestDuplicateMergeCells(t *testing.T) {
	f := File{}
	xlsx := &xlsxWorksheet{MergeCells: &xlsxMergeCells{
		Cells: []*xlsxMergeCell{{Ref: "A1:-"}},
	}}
	assert.EqualError(t, f.duplicateMergeCells("Sheet1", xlsx, 0, 0), `cannot convert cell "-" to coordinates: invalid cell name "-"`)
	xlsx.MergeCells.Cells[0].Ref = "A1:B1"
	assert.EqualError(t, f.duplicateMergeCells("SheetN", xlsx, 1, 2), "sheet SheetN is not exist")
}

func TestGetValueFrom(t *testing.T) {
	c := &xlsxC{T: "inlineStr"}
	f := NewFile()
	d := &xlsxSST{}
	val, err := c.getValueFrom(f, d)
	assert.NoError(t, err)
	assert.Equal(t, "", val)
}

func TestErrSheetNotExistError(t *testing.T) {
	err := ErrSheetNotExist{SheetName: "Sheet1"}
	assert.EqualValues(t, err.Error(), "sheet Sheet1 is not exist")
}

func TestCheckRow(t *testing.T) {
	f := NewFile()
	f.XLSX["xl/worksheets/sheet1.xml"] = []byte(`<?xml version="1.0" encoding="UTF-8" standalone="yes"?><worksheet xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" ><sheetData><row r="2"><c><v>1</v></c><c r="F2"><v>2</v></c><c><v>3</v></c><c><v>4</v></c><c r="M2"><v>5</v></c></row></sheetData></worksheet>`)
	_, err := f.GetRows("Sheet1")
	assert.NoError(t, err)
	assert.NoError(t, f.SetCellValue("Sheet1", "A1", false))
	f = NewFile()
	f.XLSX["xl/worksheets/sheet1.xml"] = []byte(`<?xml version="1.0" encoding="UTF-8" standalone="yes"?><worksheet xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" ><sheetData><row r="2"><c><v>1</v></c><c r="-"><v>2</v></c><c><v>3</v></c><c><v>4</v></c><c r="M2"><v>5</v></c></row></sheetData></worksheet>`)
	assert.EqualError(t, f.SetCellValue("Sheet1", "A1", false), `cannot convert cell "-" to coordinates: invalid cell name "-"`)
}

func BenchmarkRows(b *testing.B) {
	f, _ := OpenFile(filepath.Join("test", "Book1.xlsx"))
	for i := 0; i < b.N; i++ {
		rows, _ := f.Rows("Sheet2")
		for rows.Next() {
			row, _ := rows.Columns()
			for i := range row {
				if i >= 0 {
					continue
				}
			}
		}
	}
}

func trimSliceSpace(s []string) []string {
	for {
		if len(s) > 0 && s[len(s)-1] == "" {
			s = s[:len(s)-1]
		} else {
			break
		}
	}
	return s
}