grafana/pkg/promlib/querydata/response_test.go
ismail simsek 3fb6319d1b
Prometheus: Introduce prometheus backend library (#83952)
* Move files to prometheus-library

* refactor core prometheus to use prometheus-library

* modify client transport options

* mock

* have a type

* import aliases

* rename

* call the right method

* remove unrelated test from the library

* update codeowners

* go work sync

* update go.work.sum

* make swagger-clean && make openapi3-gen

* add promlib to makefile

* remove clilogger

* Export the function

* update unit test

* add prometheus_test.go

* fix mock type

* use mapUtil from grafana-plugin-sdk-go
2024-03-11 17:22:33 +01:00

59 lines
3.2 KiB
Go

package querydata
import (
"bytes"
"context"
"io"
"net/http"
"testing"
"github.com/stretchr/testify/assert"
"github.com/grafana/grafana/pkg/promlib/models"
"github.com/grafana/grafana/pkg/promlib/querydata/exemplar"
)
func TestQueryData_parseResponse(t *testing.T) {
qd := QueryData{exemplarSampler: exemplar.NewStandardDeviationSampler}
t.Run("resultType is before result the field must parsed normally", func(t *testing.T) {
resBody := `{"data":{"resultType":"vector", "result":[{"metric":{"__name__":"some_name","environment":"some_env","id":"some_id","instance":"some_instance:1234","job":"some_job","name":"another_name","region":"some_region"},"value":[1.1,"2"]}]},"status":"success"}`
res := &http.Response{Body: io.NopCloser(bytes.NewBufferString(resBody))}
result := qd.parseResponse(context.Background(), &models.Query{}, res, false)
assert.Nil(t, result.Error)
assert.Len(t, result.Frames, 1)
})
t.Run("resultType is after the result field must parsed normally", func(t *testing.T) {
resBody := `{"data":{"result":[{"metric":{"__name__":"some_name","environment":"some_env","id":"some_id","instance":"some_instance:1234","job":"some_job","name":"another_name","region":"some_region"},"value":[1.1,"2"]}],"resultType":"vector"},"status":"success"}`
res := &http.Response{Body: io.NopCloser(bytes.NewBufferString(resBody))}
result := qd.parseResponse(context.Background(), &models.Query{}, res, false)
assert.Nil(t, result.Error)
assert.Len(t, result.Frames, 1)
})
t.Run("no resultType is existed in the data", func(t *testing.T) {
resBody := `{"data":{"result":[{"metric":{"__name__":"some_name","environment":"some_env","id":"some_id","instance":"some_instance:1234","job":"some_job","name":"another_name","region":"some_region"},"value":[1.1,"2"]}]},"status":"success"}`
res := &http.Response{Body: io.NopCloser(bytes.NewBufferString(resBody))}
result := qd.parseResponse(context.Background(), &models.Query{}, res, false)
assert.Error(t, result.Error)
assert.Equal(t, result.Error.Error(), "no resultType found")
})
t.Run("resultType is set as empty string before result", func(t *testing.T) {
resBody := `{"data":{"resultType":"", "result":[{"metric":{"__name__":"some_name","environment":"some_env","id":"some_id","instance":"some_instance:1234","job":"some_job","name":"another_name","region":"some_region"},"value":[1.1,"2"]}]},"status":"success"}`
res := &http.Response{Body: io.NopCloser(bytes.NewBufferString(resBody))}
result := qd.parseResponse(context.Background(), &models.Query{}, res, false)
assert.Error(t, result.Error)
assert.Equal(t, result.Error.Error(), "unknown result type: ")
})
t.Run("resultType is set as empty string after result", func(t *testing.T) {
resBody := `{"data":{"result":[{"metric":{"__name__":"some_name","environment":"some_env","id":"some_id","instance":"some_instance:1234","job":"some_job","name":"another_name","region":"some_region"},"value":[1.1,"2"]}],"resultType":""},"status":"success"}`
res := &http.Response{Body: io.NopCloser(bytes.NewBufferString(resBody))}
result := qd.parseResponse(context.Background(), &models.Query{}, res, false)
assert.Error(t, result.Error)
assert.Equal(t, result.Error.Error(), "unknown result type: ")
})
}