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package storage_test
import (
"bytes"
"errors"
"reflect"
"strings"
"testing"
"github.com/tomwright/dasel/v2"
"github.com/tomwright/dasel/v2/dencoding"
"github.com/tomwright/dasel/v2/storage"
)
func TestUnknownParserErr_Error(t *testing.T) {
if exp, got := "unknown parser: x", (&storage.UnknownParserErr{Parser: "x"}).Error(); exp != got {
t.Errorf("expected error %s, got %s", exp, got)
}
}
func TestNewReadParserFromString(t *testing.T) {
tests := []struct {
In string
Out storage.Parser
Err error
}{
{In: "json", Out: &storage.JSONParser{}},
{In: "yaml", Out: &storage.YAMLParser{}},
{In: "yml", Out: &storage.YAMLParser{}},
{In: "toml", Out: &storage.TOMLParser{}},
{In: "xml", Out: &storage.XMLParser{}},
{In: "csv", Out: &storage.CSVParser{}},
{In: "bad", Out: nil, Err: &storage.UnknownParserErr{Parser: "bad"}},
{In: "-", Out: nil, Err: &storage.UnknownParserErr{Parser: "-"}},
}
for _, testCase := range tests {
tc := testCase
t.Run(tc.In, func(t *testing.T) {
got, err := storage.NewReadParserFromString(tc.In)
if tc.Err == nil && err != nil {
t.Errorf("expected err %v, got %v", tc.Err, err)
return
}
if tc.Err != nil && err == nil {
t.Errorf("expected err %v, got %v", tc.Err, err)
return
}
if tc.Err != nil && err != nil && err.Error() != tc.Err.Error() {
t.Errorf("expected err %v, got %v", tc.Err, err)
return
}
if tc.Out != got {
t.Errorf("expected result %v, got %v", tc.Out, got)
}
})
}
}
func TestNewWriteParserFromString(t *testing.T) {
tests := []struct {
In string
Out storage.Parser
Err error
}{
{In: "json", Out: &storage.JSONParser{}},
{In: "yaml", Out: &storage.YAMLParser{}},
{In: "yml", Out: &storage.YAMLParser{}},
{In: "toml", Out: &storage.TOMLParser{}},
{In: "xml", Out: &storage.XMLParser{}},
{In: "csv", Out: &storage.CSVParser{}},
{In: "-", Out: &storage.PlainParser{}},
{In: "plain", Out: &storage.PlainParser{}},
{In: "bad", Out: nil, Err: &storage.UnknownParserErr{Parser: "bad"}},
}
for _, testCase := range tests {
tc := testCase
t.Run(tc.In, func(t *testing.T) {
got, err := storage.NewWriteParserFromString(tc.In)
if tc.Err == nil && err != nil {
t.Errorf("expected err %v, got %v", tc.Err, err)
return
}
if tc.Err != nil && err == nil {
t.Errorf("expected err %v, got %v", tc.Err, err)
return
}
if tc.Err != nil && err != nil && err.Error() != tc.Err.Error() {
t.Errorf("expected err %v, got %v", tc.Err, err)
return
}
if tc.Out != got {
t.Errorf("expected result %v, got %v", tc.Out, got)
}
})
}
}
func TestNewReadParserFromFilename(t *testing.T) {
tests := []struct {
In string
Out storage.Parser
Err error
}{
{In: "a.json", Out: &storage.JSONParser{}},
{In: "a.yaml", Out: &storage.YAMLParser{}},
{In: "a.yml", Out: &storage.YAMLParser{}},
{In: "a.toml", Out: &storage.TOMLParser{}},
{In: "a.xml", Out: &storage.XMLParser{}},
{In: "a.csv", Out: &storage.CSVParser{}},
{In: "a.txt", Out: nil, Err: &storage.UnknownParserErr{Parser: ".txt"}},
}
for _, testCase := range tests {
tc := testCase
t.Run(tc.In, func(t *testing.T) {
got, err := storage.NewReadParserFromFilename(tc.In)
if tc.Err == nil && err != nil {
t.Errorf("expected err %v, got %v", tc.Err, err)
return
}
if tc.Err != nil && err == nil {
t.Errorf("expected err %v, got %v", tc.Err, err)
return
}
if tc.Err != nil && err != nil && err.Error() != tc.Err.Error() {
t.Errorf("expected err %v, got %v", tc.Err, err)
return
}
if tc.Out != got {
t.Errorf("expected result %v, got %v", tc.Out, got)
}
})
}
}
func TestNewWriteParserFromFilename(t *testing.T) {
tests := []struct {
In string
Out storage.Parser
Err error
}{
{In: "a.json", Out: &storage.JSONParser{}},
{In: "a.yaml", Out: &storage.YAMLParser{}},
{In: "a.yml", Out: &storage.YAMLParser{}},
{In: "a.toml", Out: &storage.TOMLParser{}},
{In: "a.xml", Out: &storage.XMLParser{}},
{In: "a.csv", Out: &storage.CSVParser{}},
{In: "a.txt", Out: nil, Err: &storage.UnknownParserErr{Parser: ".txt"}},
}
for _, testCase := range tests {
tc := testCase
t.Run(tc.In, func(t *testing.T) {
got, err := storage.NewWriteParserFromFilename(tc.In)
if tc.Err == nil && err != nil {
t.Errorf("expected err %v, got %v", tc.Err, err)
return
}
if tc.Err != nil && err == nil {
t.Errorf("expected err %v, got %v", tc.Err, err)
return
}
if tc.Err != nil && err != nil && err.Error() != tc.Err.Error() {
t.Errorf("expected err %v, got %v", tc.Err, err)
return
}
if tc.Out != got {
t.Errorf("expected result %v, got %v", tc.Out, got)
}
})
}
}
var jsonData = dencoding.NewMap().
Set("name", "Tom").
Set("preferences", dencoding.NewMap().
Set("favouriteColour", "red"),
).
Set("colours", []any{"red", "green", "blue"}).
Set("colourCodes", []any{
dencoding.NewMap().
Set("name", "red").
Set("rgb", "ff0000"),
dencoding.NewMap().
Set("name", "green").
Set("rgb", "00ff00"),
dencoding.NewMap().
Set("name", "blue").
Set("rgb", "0000ff"),
})
func TestLoadFromFile(t *testing.T) {
t.Run("ValidJSON", func(t *testing.T) {
data, err := storage.LoadFromFile("../tests/assets/example.json", &storage.JSONParser{})
if err != nil {
t.Errorf("unexpected error: %s", err)
return
}
exp := jsonData.KeyValues()
got := data.Interface().(*dencoding.Map).KeyValues()
if !reflect.DeepEqual(exp, got) {
t.Errorf("data does not match: exp %v, got %v", exp, got)
}
})
t.Run("BaseFilePath", func(t *testing.T) {
_, err := storage.LoadFromFile("x.json", &storage.JSONParser{})
if err == nil || !strings.Contains(err.Error(), "could not open file for reading") {
t.Errorf("unexpected error: %v", err)
return
}
})
}
func TestLoad(t *testing.T) {
t.Run("ReaderErrHandled", func(t *testing.T) {
if _, err := storage.Load(&storage.JSONParser{}, &failingReader{}); !errors.Is(err, errFailingReaderErr) {
t.Errorf("unexpected error: %v", err)
return
}
})
}
var errFailingParserErr = errors.New("i am meant to fail at parsing")
type failingParser struct {
}
func (fp *failingParser) FromBytes(_ []byte) (dasel.Value, error) {
return dasel.Value{}, errFailingParserErr
}
func (fp *failingParser) ToBytes(_ dasel.Value, options ...storage.ReadWriteOption) ([]byte, error) {
return nil, errFailingParserErr
}
var errFailingWriterErr = errors.New("i am meant to fail at writing")
type failingWriter struct {
}
func (fp *failingWriter) Write(_ []byte) (int, error) {
return 0, errFailingWriterErr
}
var errFailingReaderErr = errors.New("i am meant to fail at reading")
type failingReader struct {
}
func (fp *failingReader) Read(_ []byte) (n int, err error) {
return 0, errFailingReaderErr
}
func TestWrite(t *testing.T) {
t.Run("Success", func(t *testing.T) {
var buf bytes.Buffer
if err := storage.Write(&storage.JSONParser{}, dasel.ValueOf(map[string]interface{}{"name": "Tom"}), &buf); err != nil {
t.Errorf("unexpected error: %s", err)
return
}
if exp, got := `{
"name": "Tom"
}
`, buf.String(); exp != got {
t.Errorf("unexpected output:\n%s\ngot:\n%s", exp, got)
}
})
t.Run("ParserErrHandled", func(t *testing.T) {
var buf bytes.Buffer
if err := storage.Write(&failingParser{}, dasel.ValueOf(map[string]interface{}{"name": "Tom"}), &buf); !errors.Is(err, errFailingParserErr) {
t.Errorf("unexpected error: %v", err)
return
}
})
t.Run("WriterErrHandled", func(t *testing.T) {
if err := storage.Write(&storage.JSONParser{}, dasel.ValueOf(map[string]interface{}{"name": "Tom"}), &failingWriter{}); !errors.Is(err, errFailingWriterErr) {
t.Errorf("unexpected error: %v", err)
return
}
})
}
|
