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package trdsql
import (
"io"
"path/filepath"
"reflect"
"strings"
"testing"
"testing/iotest"
)
func TestNewCSVReader(t *testing.T) {
type args struct {
reader io.Reader
opts *ReadOpts
}
tests := []struct {
name string
args args
want *CSVReader
wantErr bool
}{
{
name: "empty",
args: args{
reader: strings.NewReader(""),
opts: NewReadOpts(),
},
want: &CSVReader{
names: nil,
types: nil,
preRead: nil,
},
wantErr: false,
},
{
name: "header",
args: args{
reader: strings.NewReader("he1,he2\nv1,v2"),
opts: NewReadOpts(
InHeader(true),
InDelimiter(","),
InPreRead(1),
),
},
want: &CSVReader{
names: []string{"he1", "he2"},
types: []string{"text", "text"},
preRead: nil,
},
wantErr: false,
},
{
name: "notEnoughHeader",
args: args{
reader: strings.NewReader("h1,\nv1,v2"),
opts: NewReadOpts(
InHeader(true),
InDelimiter(","),
InPreRead(2),
),
},
want: &CSVReader{
names: []string{"h1", "c2"},
types: []string{"text", "text"},
preRead: [][]string{{"v1", "v2"}},
},
wantErr: false,
},
{
name: "headerOnly",
args: args{
reader: strings.NewReader("h1,h2\n"),
opts: NewReadOpts(
InHeader(true),
InDelimiter(","),
InPreRead(2),
),
},
want: &CSVReader{
names: []string{"h1", "h2"},
types: []string{"text", "text"},
preRead: nil,
},
wantErr: false,
},
{
name: "spaceDelimiter",
args: args{
reader: iotest.DataErrReader(strings.NewReader("h1 h2\nv1 v2\n")),
opts: NewReadOpts(
InHeader(true),
InDelimiter(" "),
InPreRead(2),
),
},
want: &CSVReader{
names: []string{"h1", "h2"},
types: []string{"text", "text"},
preRead: [][]string{{"v1", "v2"}},
},
wantErr: false,
},
{
name: "spaceTrim",
args: args{
reader: iotest.DataErrReader(strings.NewReader("h1 h2\nv1 v2\n")),
opts: NewReadOpts(
InHeader(true),
InDelimiter(" "),
InPreRead(2),
),
},
want: &CSVReader{
names: []string{"h1", "h2"},
types: []string{"text", "text"},
preRead: [][]string{{"v1", "v2"}},
},
wantErr: false,
},
{
name: "tabDelimiter",
args: args{
reader: iotest.DataErrReader(strings.NewReader("h1\th2\nv1\tv2\n")),
opts: NewReadOpts(
InHeader(true),
InDelimiter("\t"),
InPreRead(2),
),
},
want: &CSVReader{
names: []string{"h1", "h2"},
types: []string{"text", "text"},
preRead: [][]string{{"v1", "v2"}},
},
wantErr: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got, err := NewCSVReader(tt.args.reader, tt.args.opts)
if (err != nil) != tt.wantErr {
t.Errorf("NewCSVReader() error = %v, wantErr %v", err, tt.wantErr)
return
}
if !reflect.DeepEqual(got.names, tt.want.names) {
t.Errorf("NewCSVReader().names = %v, want %v", got.names, tt.want.names)
}
if !reflect.DeepEqual(got.types, tt.want.types) {
t.Errorf("NewCSVReader().types = %v, want %v", got.types, tt.want.types)
}
if !reflect.DeepEqual(got.preRead, tt.want.preRead) {
t.Errorf("NewCSVReader().preRead = %v, want %v", got.preRead, tt.want.preRead)
}
})
}
}
func TestNewCSVReaderFile(t *testing.T) {
type args struct {
opts *ReadOpts
}
tests := []struct {
name string
fileName string
args args
want *CSVReader
wantLen int
wantErr bool
}{
{
name: "test.csv",
fileName: "test.csv",
args: args{opts: NewReadOpts()},
want: &CSVReader{
names: []string{"c1", "c2"},
types: []string{"text", "text"},
preRead: [][]string{{"1", "Orange"}},
},
wantLen: 2,
wantErr: false,
},
{
name: "test_indefinite.csv",
fileName: "test_indefinite.csv",
args: args{opts: NewReadOpts()},
want: &CSVReader{
names: []string{"c1", "c2"},
types: []string{"text", "text"},
preRead: [][]string{{"1", "Orange"}},
},
wantLen: 2,
wantErr: false,
},
{
name: "test_indefinite.csv2",
fileName: "test_indefinite.csv",
args: args{opts: NewReadOpts(
InPreRead(2),
)},
want: &CSVReader{
names: []string{"c1", "c2", "c3"},
types: []string{"text", "text", "text"},
preRead: [][]string{
{"1", "Orange"},
{"2", "Melon", "ibraki"},
},
},
wantLen: 2,
wantErr: false,
},
{
name: "test_indefinite.csv3",
fileName: "test_indefinite.csv",
args: args{opts: NewReadOpts(
InPreRead(100),
)},
want: &CSVReader{
names: []string{"c1", "c2", "c3", "c4"},
types: []string{"text", "text", "text", "text"},
preRead: [][]string{
{"1", "Orange"},
{"2", "Melon", "ibraki"},
{"3", "Apple", "aomori", "red"},
},
},
wantLen: 2,
wantErr: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
file, err := singleFileOpen(filepath.Join(dataDir, tt.fileName))
if err != nil {
t.Error(err)
}
got, err := NewCSVReader(file, tt.args.opts)
if (err != nil) != tt.wantErr {
t.Errorf("NewCSVReader() error = %v, wantErr %v", err, tt.wantErr)
return
}
if !reflect.DeepEqual(got.names, tt.want.names) {
t.Errorf("NewCSVReader().names = %v, want %v", got.names, tt.want.names)
}
if !reflect.DeepEqual(got.types, tt.want.types) {
t.Errorf("NewCSVReader().types = %v, want %v", got.types, tt.want.types)
}
if !reflect.DeepEqual(got.preRead, tt.want.preRead) {
t.Errorf("NewCSVReader().preRead = %v, want %v", got.preRead, tt.want.preRead)
}
})
}
}
func Test_delimiter(t *testing.T) {
tests := []struct {
name string
args string
want rune
wantErr bool
}{
{
name: "comma",
args: ",",
want: rune(','),
wantErr: false,
},
{
name: "multi",
args: "--",
want: rune(','),
wantErr: true,
},
{
name: "zero",
args: "",
want: rune(0),
wantErr: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got, err := delimiter(tt.args)
if (err != nil) != tt.wantErr {
t.Errorf("delimiter() error = %v, wantErr %v", err, tt.wantErr)
return
}
if got != tt.want {
t.Errorf("delimiter() = %v, want %v", got, tt.want)
}
})
}
}
func TestCSVReader_PreReadRow(t *testing.T) {
tests := []struct {
name string
fileName string
opts *ReadOpts
want [][]any
}{
{
name: "testBlank",
fileName: "testnull.csv",
opts: NewReadOpts(),
want: [][]any{
{"1", ""},
},
},
{
name: "testnull1",
fileName: "testnull.csv",
opts: NewReadOpts(
InNeedNULL(true),
InNULL(""),
),
want: [][]any{
{"1", nil},
},
},
{
name: "testnull2",
fileName: "testnull.csv",
opts: NewReadOpts(
InNeedNULL(true),
InNULL("1"),
),
want: [][]any{
{nil, ""},
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
file, err := singleFileOpen(filepath.Join(dataDir, tt.fileName))
if err != nil {
t.Error(err)
}
r, err := NewCSVReader(file, tt.opts)
if err != nil {
t.Error(err)
}
if got := r.PreReadRow(); !reflect.DeepEqual(got, tt.want) {
t.Errorf("CSVReader.PreReadRow() = %v, want %v", got, tt.want)
}
})
}
}
func TestCSVReader_ReadRow(t *testing.T) {
type args struct {
row []any
}
tests := []struct {
name string
fileName string
opts *ReadOpts
args args
want []any
wantErr bool
}{
{
name: "test.csv",
fileName: "test.csv",
opts: NewReadOpts(),
args: args{
[]any{
"", "",
},
},
want: []any{
"2", "Melon",
},
wantErr: false,
},
{
name: "testblank",
fileName: "testnull2.csv",
opts: NewReadOpts(),
args: args{
[]any{
"", "", "",
},
},
want: []any{
"2", "", "g3",
},
wantErr: false,
},
{
name: "testnull2.csv",
fileName: "testnull2.csv",
opts: NewReadOpts(
InNeedNULL(true),
InNULL(""),
),
args: args{
[]any{
"", "", "",
},
},
want: []any{
"2", nil, "g3",
},
wantErr: false,
},
{
name: "test_indefinite2.csv",
fileName: "test_indefinite2.csv",
opts: NewReadOpts(),
args: args{
[]any{
"", "", "",
},
},
want: []any{
"2", "Melon", nil,
},
wantErr: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
file, err := singleFileOpen(filepath.Join(dataDir, tt.fileName))
if err != nil {
t.Error(err)
}
r, err := NewCSVReader(file, tt.opts)
if err != nil {
t.Error(err)
}
got, err := r.ReadRow(tt.args.row)
if (err != nil) != tt.wantErr {
t.Errorf("CSVReader.ReadRow() error = %v, wantErr %v", err, tt.wantErr)
return
}
if !reflect.DeepEqual(got, tt.want) {
t.Errorf("CSVReader.ReadRow() = %v, want %v", got, tt.want)
}
})
}
}