grafana/pkg/api/metrics_test.go
Sasha Melentyev f0adc69ada
Chore: Change fmt.Errorf to errors.New when there is no formatting required (#58600)
Signed-off-by: Sasha Melentyev <sasha@melentyev.io>
2022-12-01 20:51:12 +01:00

299 lines
9.0 KiB
Go

package api
import (
"bytes"
"context"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"strings"
"testing"
"github.com/grafana/grafana-plugin-sdk-go/backend"
"github.com/stretchr/testify/require"
"github.com/grafana/grafana/pkg/plugins"
"github.com/grafana/grafana/pkg/plugins/backendplugin"
"github.com/grafana/grafana/pkg/plugins/config"
pluginClient "github.com/grafana/grafana/pkg/plugins/manager/client"
"github.com/grafana/grafana/pkg/plugins/manager/registry"
fakeDatasources "github.com/grafana/grafana/pkg/services/datasources/fakes"
"github.com/grafana/grafana/pkg/services/featuremgmt"
"github.com/grafana/grafana/pkg/services/org"
"github.com/grafana/grafana/pkg/services/query"
"github.com/grafana/grafana/pkg/services/quota/quotatest"
"github.com/grafana/grafana/pkg/services/user"
"github.com/grafana/grafana/pkg/setting"
"github.com/grafana/grafana/pkg/util/errutil"
"github.com/grafana/grafana/pkg/web/webtest"
)
type fakePluginRequestValidator struct {
err error
}
type secretsErrorResponseBody struct {
Error string `json:"error"`
Message string `json:"message"`
}
func (rv *fakePluginRequestValidator) Validate(dsURL string, req *http.Request) error {
return rv.err
}
// `/ds/query` endpoint test
func TestAPIEndpoint_Metrics_QueryMetricsV2(t *testing.T) {
qds := query.ProvideService(
setting.NewCfg(),
nil,
nil,
&fakePluginRequestValidator{},
&fakeDatasources.FakeDataSourceService{},
&fakePluginClient{
QueryDataHandlerFunc: func(ctx context.Context, req *backend.QueryDataRequest) (*backend.QueryDataResponse, error) {
resp := backend.Responses{
"A": backend.DataResponse{
Error: errors.New("query failed"),
},
}
return &backend.QueryDataResponse{Responses: resp}, nil
},
},
)
serverFeatureEnabled := SetupAPITestServer(t, func(hs *HTTPServer) {
hs.queryDataService = qds
hs.Features = featuremgmt.WithFeatures(featuremgmt.FlagDatasourceQueryMultiStatus, true)
hs.QuotaService = quotatest.New(false, nil)
})
serverFeatureDisabled := SetupAPITestServer(t, func(hs *HTTPServer) {
hs.queryDataService = qds
hs.Features = featuremgmt.WithFeatures(featuremgmt.FlagDatasourceQueryMultiStatus, false)
hs.QuotaService = quotatest.New(false, nil)
})
t.Run("Status code is 400 when data source response has an error and feature toggle is disabled", func(t *testing.T) {
req := serverFeatureDisabled.NewPostRequest("/api/ds/query", strings.NewReader(reqValid))
webtest.RequestWithSignedInUser(req, &user.SignedInUser{UserID: 1, OrgID: 1, OrgRole: org.RoleViewer})
resp, err := serverFeatureDisabled.SendJSON(req)
require.NoError(t, err)
require.NoError(t, resp.Body.Close())
require.Equal(t, http.StatusBadRequest, resp.StatusCode)
})
t.Run("Status code is 207 when data source response has an error and feature toggle is enabled", func(t *testing.T) {
req := serverFeatureEnabled.NewPostRequest("/api/ds/query", strings.NewReader(reqValid))
webtest.RequestWithSignedInUser(req, &user.SignedInUser{UserID: 1, OrgID: 1, OrgRole: org.RoleViewer})
resp, err := serverFeatureEnabled.SendJSON(req)
require.NoError(t, err)
require.NoError(t, resp.Body.Close())
require.Equal(t, http.StatusMultiStatus, resp.StatusCode)
})
}
func TestAPIEndpoint_Metrics_PluginDecryptionFailure(t *testing.T) {
qds := query.ProvideService(
setting.NewCfg(),
nil,
nil,
&fakePluginRequestValidator{},
&fakeDatasources.FakeDataSourceService{SimulatePluginFailure: true},
&fakePluginClient{
QueryDataHandlerFunc: func(ctx context.Context, req *backend.QueryDataRequest) (*backend.QueryDataResponse, error) {
resp := backend.Responses{
"A": backend.DataResponse{
Error: errors.New("query failed"),
},
}
return &backend.QueryDataResponse{Responses: resp}, nil
},
},
)
httpServer := SetupAPITestServer(t, func(hs *HTTPServer) {
hs.queryDataService = qds
hs.QuotaService = quotatest.New(false, nil)
})
t.Run("Status code is 500 and a secrets plugin error is returned if there is a problem getting secrets from the remote plugin", func(t *testing.T) {
req := httpServer.NewPostRequest("/api/ds/query", strings.NewReader(reqValid))
webtest.RequestWithSignedInUser(req, &user.SignedInUser{UserID: 1, OrgID: 1, OrgRole: org.RoleViewer})
resp, err := httpServer.SendJSON(req)
require.NoError(t, err)
require.Equal(t, http.StatusInternalServerError, resp.StatusCode)
buf := new(bytes.Buffer)
_, err = buf.ReadFrom(resp.Body)
require.NoError(t, err)
require.NoError(t, resp.Body.Close())
var resObj secretsErrorResponseBody
err = json.Unmarshal(buf.Bytes(), &resObj)
require.NoError(t, err)
require.Equal(t, "unknown error", resObj.Error)
require.Contains(t, resObj.Message, "Secrets Plugin error:")
})
}
var reqValid = `{
"from": "",
"to": "",
"queries": [
{
"datasource": {
"type": "datasource",
"uid": "grafana"
},
"queryType": "randomWalk",
"refId": "A"
}
]
}`
var reqNoQueries = `{
"from": "",
"to": "",
"queries": []
}`
var reqQueryWithInvalidDatasourceID = `{
"from": "",
"to": "",
"queries": [
{
"queryType": "randomWalk",
"refId": "A"
}
]
}`
var reqDatasourceByUidNotFound = `{
"from": "",
"to": "",
"queries": [
{
"datasource": {
"type": "datasource",
"uid": "not-found"
},
"queryType": "randomWalk",
"refId": "A"
}
]
}`
var reqDatasourceByIdNotFound = `{
"from": "",
"to": "",
"queries": [
{
"datasourceId": 1,
"queryType": "randomWalk",
"refId": "A"
}
]
}`
func TestDataSourceQueryError(t *testing.T) {
tcs := []struct {
request string
clientErr error
expectedStatus int
expectedBody string
}{
{
request: reqValid,
clientErr: backendplugin.ErrPluginUnavailable,
expectedStatus: http.StatusInternalServerError,
expectedBody: `{"message":"Internal server error","messageId":"plugin.unavailable","statusCode":500,"traceID":""}`,
},
{
request: reqValid,
clientErr: backendplugin.ErrMethodNotImplemented,
expectedStatus: http.StatusNotImplemented,
expectedBody: `{"message":"Not implemented","messageId":"plugin.notImplemented","statusCode":501,"traceID":""}`,
},
{
request: reqValid,
clientErr: errors.New("surprise surprise"),
expectedStatus: errutil.StatusInternal.HTTPStatus(),
expectedBody: `{"message":"An error occurred within the plugin","messageId":"plugin.downstreamError","statusCode":500,"traceID":""}`,
},
{
request: reqNoQueries,
expectedStatus: http.StatusBadRequest,
expectedBody: `{"message":"No queries found","messageId":"query.noQueries","statusCode":400,"traceID":""}`,
},
{
request: reqQueryWithInvalidDatasourceID,
expectedStatus: http.StatusBadRequest,
expectedBody: `{"message":"Query does not contain a valid data source identifier","messageId":"query.invalidDatasourceId","statusCode":400,"traceID":""}`,
},
{
request: reqDatasourceByUidNotFound,
expectedStatus: http.StatusNotFound,
expectedBody: `{"error":"data source not found","message":"Data source not found","traceID":""}`,
},
{
request: reqDatasourceByIdNotFound,
expectedStatus: http.StatusNotFound,
expectedBody: `{"error":"data source not found","message":"Data source not found","traceID":""}`,
},
}
for _, tc := range tcs {
t.Run(fmt.Sprintf("Plugin client error %q should propagate to API", tc.clientErr), func(t *testing.T) {
p := &plugins.Plugin{
JSONData: plugins.JSONData{
ID: "grafana",
},
}
p.RegisterClient(&fakePluginBackend{
qdr: func(ctx context.Context, req *backend.QueryDataRequest) (*backend.QueryDataResponse, error) {
return nil, tc.clientErr
},
})
srv := SetupAPITestServer(t, func(hs *HTTPServer) {
r := registry.NewInMemory()
err := r.Add(context.Background(), p)
require.NoError(t, err)
hs.queryDataService = query.ProvideService(
setting.NewCfg(),
&fakeDatasources.FakeCacheService{},
nil,
&fakePluginRequestValidator{},
&fakeDatasources.FakeDataSourceService{},
pluginClient.ProvideService(r, &config.Cfg{}),
)
hs.QuotaService = quotatest.New(false, nil)
})
req := srv.NewPostRequest("/api/ds/query", strings.NewReader(tc.request))
webtest.RequestWithSignedInUser(req, &user.SignedInUser{UserID: 1, OrgID: 1, OrgRole: org.RoleViewer})
resp, err := srv.SendJSON(req)
require.NoError(t, err)
require.Equal(t, tc.expectedStatus, resp.StatusCode)
require.Equal(t, tc.expectedStatus, resp.StatusCode)
body, err := io.ReadAll(resp.Body)
require.NoError(t, err)
require.Equal(t, tc.expectedBody, string(body))
require.NoError(t, resp.Body.Close())
})
}
}
type fakePluginBackend struct {
qdr backend.QueryDataHandlerFunc
backendplugin.Plugin
}
func (f *fakePluginBackend) QueryData(ctx context.Context, req *backend.QueryDataRequest) (*backend.QueryDataResponse, error) {
if f.qdr != nil {
return f.qdr(ctx, req)
}
return backend.NewQueryDataResponse(), nil
}
func (f *fakePluginBackend) IsDecommissioned() bool {
return false
}