diff --git a/pkg/converters/csv/csv_file_imported_data_table_test.go b/pkg/converters/csv/csv_file_imported_data_table_test.go
new file mode 100644
index 00000000..29d7348f
--- /dev/null
+++ b/pkg/converters/csv/csv_file_imported_data_table_test.go
@@ -0,0 +1,184 @@
+package csv
+
+import (
+	"bytes"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+
+	"github.com/mayswind/ezbookkeeping/pkg/core"
+)
+
+func TestCsvFileImportedDataTableDataRowCount(t *testing.T) {
+	datatable := CreateNewCustomCsvImportedDataTable([][]string{
+		{"A1", "B1", "C1"},
+		{"A2", "B2", "C2"},
+		{"A3", "B3", "C3"},
+	})
+
+	assert.Equal(t, 2, datatable.DataRowCount())
+}
+
+func TestCsvFileImportedDataTableDataRowCount_OnlyHeaderLine(t *testing.T) {
+	datatable := CreateNewCustomCsvImportedDataTable([][]string{
+		{"A1", "B1", "C1"},
+	})
+
+	assert.Equal(t, 0, datatable.DataRowCount())
+}
+
+func TestCsvFileImportedDataTableDataRowCount_EmptyContent(t *testing.T) {
+	datatable := CreateNewCustomCsvImportedDataTable([][]string{})
+
+	assert.Equal(t, 0, datatable.DataRowCount())
+}
+
+func TestCsvFileImportedDataTableHeaderColumnNames(t *testing.T) {
+	datatable := CreateNewCustomCsvImportedDataTable([][]string{
+		{"A1", "B1", "C1"},
+		{"A2", "B2", "C2"},
+		{"A3", "B3", "C3"},
+	})
+
+	assert.EqualValues(t, []string{"A1", "B1", "C1"}, datatable.HeaderColumnNames())
+}
+
+func TestCsvFileImportedDataTableHeaderColumnNames_EmptyContent(t *testing.T) {
+	datatable := CreateNewCustomCsvImportedDataTable([][]string{})
+
+	assert.Nil(t, datatable.HeaderColumnNames())
+}
+
+func TestCsvFileImportedDataRowIterator(t *testing.T) {
+	datatable := CreateNewCustomCsvImportedDataTable([][]string{
+		{"A1", "B1", "C1"},
+		{"A2", "B2", "C2"},
+		{"A3", "B3", "C3"},
+	})
+
+	iterator := datatable.DataRowIterator()
+	assert.True(t, iterator.HasNext())
+
+	// data row 1
+	assert.NotNil(t, iterator.Next())
+	assert.True(t, iterator.HasNext())
+
+	// data row 2
+	assert.NotNil(t, iterator.Next())
+	assert.False(t, iterator.HasNext())
+
+	// not existed data row 3
+	assert.Nil(t, iterator.Next())
+	assert.False(t, iterator.HasNext())
+
+	// not existed data row 4
+	assert.Nil(t, iterator.Next())
+	assert.False(t, iterator.HasNext())
+}
+
+func TestCsvFileImportedDataRowColumnCount(t *testing.T) {
+	datatable := CreateNewCustomCsvImportedDataTable([][]string{
+		{"A1", "B1", "C1"},
+		{"A2", "B2", "C2"},
+		{"A3", "B3", "C3"},
+	})
+
+	iterator := datatable.DataRowIterator()
+
+	row1 := iterator.Next()
+	assert.EqualValues(t, 3, row1.ColumnCount())
+
+	row2 := iterator.Next()
+	assert.EqualValues(t, 3, row2.ColumnCount())
+}
+
+func TestCsvFileImportedDataRowGetData(t *testing.T) {
+	datatable := CreateNewCustomCsvImportedDataTable([][]string{
+		{"A1", "B1", "C1"},
+		{"A2", "B2", "C2"},
+		{"A3", "B3", "C3"},
+	})
+
+	iterator := datatable.DataRowIterator()
+
+	row1 := iterator.Next()
+	assert.Equal(t, "A2", row1.GetData(0))
+	assert.Equal(t, "B2", row1.GetData(1))
+	assert.Equal(t, "C2", row1.GetData(2))
+
+	row2 := iterator.Next()
+	assert.Equal(t, "A3", row2.GetData(0))
+	assert.Equal(t, "B3", row2.GetData(1))
+	assert.Equal(t, "C3", row2.GetData(2))
+}
+
+func TestCsvFileImportedDataRowGetData_GetNotExistedColumnData(t *testing.T) {
+	datatable := CreateNewCustomCsvImportedDataTable([][]string{
+		{"A1", "B1", "C1"},
+		{"A2", "B2", "C2"},
+		{"A3", "B3", "C3"},
+	})
+
+	iterator := datatable.DataRowIterator()
+
+	row1 := iterator.Next()
+	assert.Equal(t, "", row1.GetData(3))
+}
+
+func TestCreateNewCsvImportedDataTable(t *testing.T) {
+	context := core.NewNullContext()
+	reader := bytes.NewReader([]byte("A1,B1,C1\n" +
+		"A2,B2,C2\n" +
+		"A3,B3,C3\n"))
+	datatable, err := CreateNewCsvImportedDataTable(context, reader)
+	assert.Nil(t, err)
+
+	assert.Equal(t, 2, datatable.DataRowCount())
+
+	iterator := datatable.DataRowIterator()
+	assert.True(t, iterator.HasNext())
+
+	row1 := iterator.Next()
+	assert.EqualValues(t, 3, row1.ColumnCount())
+	assert.Equal(t, "A2", row1.GetData(0))
+	assert.Equal(t, "B2", row1.GetData(1))
+	assert.Equal(t, "C2", row1.GetData(2))
+	assert.True(t, iterator.HasNext())
+
+	row2 := iterator.Next()
+	assert.EqualValues(t, 3, row2.ColumnCount())
+	assert.Equal(t, "A3", row2.GetData(0))
+	assert.Equal(t, "B3", row2.GetData(1))
+	assert.Equal(t, "C3", row2.GetData(2))
+	assert.False(t, iterator.HasNext())
+}
+
+func TestCreateNewCsvImportedDataTable_SkipBlankLine(t *testing.T) {
+	context := core.NewNullContext()
+	reader := bytes.NewReader([]byte("\n" +
+		"A1,B1,C1\n" +
+		"A2,B2,C2\n" +
+		"\n" +
+		"A3,B3,C3\n"))
+	datatable, err := CreateNewCsvImportedDataTable(context, reader)
+	assert.Nil(t, err)
+
+	assert.Equal(t, 2, datatable.DataRowCount())
+
+	iterator := datatable.DataRowIterator()
+	assert.True(t, iterator.HasNext())
+
+	row1 := iterator.Next()
+	assert.EqualValues(t, 3, row1.ColumnCount())
+	assert.Equal(t, "A2", row1.GetData(0))
+	assert.Equal(t, "B2", row1.GetData(1))
+	assert.Equal(t, "C2", row1.GetData(2))
+	assert.True(t, iterator.HasNext())
+
+	row2 := iterator.Next()
+	assert.EqualValues(t, 3, row2.ColumnCount())
+	assert.Equal(t, "A3", row2.GetData(0))
+	assert.Equal(t, "B3", row2.GetData(1))
+	assert.Equal(t, "C3", row2.GetData(2))
+	assert.False(t, iterator.HasNext())
+}