grafana/pkg/tsdb/grafana-testdata-datasource/csv_data_test.go

80 lines
2.1 KiB
Go

package testdatasource
import (
"os"
"path/filepath"
"testing"
"github.com/grafana/grafana-plugin-sdk-go/backend"
"github.com/grafana/grafana-plugin-sdk-go/data"
"github.com/grafana/grafana-plugin-sdk-go/experimental"
"github.com/stretchr/testify/require"
)
func TestCSVFileScenario(t *testing.T) {
s := &Service{}
t.Run("loadCsvFile", func(t *testing.T) {
files := []string{"simple", "mixed", "labels"}
for _, name := range files {
t.Run("Should load CSV Text: "+name, func(t *testing.T) {
filePath := filepath.Join("testdata", name+".csv")
// Can ignore gosec G304 here, because this is a constant defined above
// nolint:gosec
fileReader, err := os.Open(filePath)
require.NoError(t, err)
defer func() {
_ = fileReader.Close()
}()
frame, err := LoadCsvContent(fileReader, name)
require.NoError(t, err)
require.NotNil(t, frame)
dr := &backend.DataResponse{
Frames: data.Frames{frame},
}
experimental.CheckGoldenJSONResponse(t, "testdata", name+".golden", dr, true)
})
}
t.Run("Should not allow non file name chars", func(t *testing.T) {
_, err := s.loadCsvFile("../population_by_state.csv")
require.Error(t, err)
})
})
}
func TestReadCSV(t *testing.T) {
fBool, err := csvLineToField("T, F,F,T ,")
require.NoError(t, err)
fBool2, err := csvLineToField("true,false,T,F,F")
require.NoError(t, err)
fNum, err := csvLineToField("1,null,,4,5")
require.NoError(t, err)
fStr, err := csvLineToField("a,b,,,c")
require.NoError(t, err)
frame := data.NewFrame("", fBool, fBool2, fNum, fStr)
out, err := data.FrameToJSON(frame, data.IncludeAll)
require.NoError(t, err)
require.JSONEq(t, `{"schema":{
"fields":[
{"type":"boolean","typeInfo":{"frame":"bool","nullable":true}},
{"type":"boolean","typeInfo":{"frame":"bool","nullable":true}},
{"type":"number","typeInfo":{"frame":"int64","nullable":true}},
{"type":"string","typeInfo":{"frame":"string","nullable":true}}
]},"data":{
"values":[
[true,false,false,true,null],
[true,false,true,false,false],
[1,null,null,4,5],
["a","b",null,null,"c"]
]}}`, string(out))
}