ooni-probe-cli/internal/engine/probeservices/collector_test.go
Simone Basso 0fdc9cafb5
fix(all): introduce and use iox.ReadAllContext (#379)
* fix(all): introduce and use iox.ReadAllContext

This improvement over the ioutil.ReadAll utility returns early
if the context expires. This enables us to unblock stuck code in
case there's censorship confounding the TCP stack.

See https://github.com/ooni/probe/issues/1417.

Compared to the functionality postulated in the above mentioned
issue, I choose to be more generic and separate limiting the
maximum body size (not implemented here) from using the context
to return early when reading a body (or any other reader).

After implementing iox.ReadAllContext, I made sure we always
use it everywhere in the tree instead of ioutil.ReadAll.

This includes many parts of the codebase where in theory we don't
need iox.ReadAllContext. Though, changing all the places makes
checking whether we're not using ioutil.ReadAll where we should
not be using it easy: `git grep` should return no lines.

* Update internal/iox/iox_test.go

* fix(ndt7): treat context errors as non-errors

The rationale is explained by the comment documenting reduceErr.

* Update internal/engine/experiment/ndt7/download.go
2021-06-15 11:57:40 +02:00

461 lines
13 KiB
Go

package probeservices_test
import (
"context"
"errors"
"io/ioutil"
"net/http"
"net/http/httptest"
"reflect"
"strings"
"sync"
"testing"
"github.com/apex/log"
"github.com/google/go-cmp/cmp"
"github.com/ooni/probe-cli/v3/internal/engine/model"
"github.com/ooni/probe-cli/v3/internal/engine/probeservices"
"github.com/ooni/probe-cli/v3/internal/iox"
)
type fakeTestKeys struct {
Failure *string `json:"failure"`
}
func makeMeasurement(rt probeservices.ReportTemplate, ID string) model.Measurement {
return model.Measurement{
DataFormatVersion: probeservices.DefaultDataFormatVersion,
ID: "bdd20d7a-bba5-40dd-a111-9863d7908572",
MeasurementRuntime: 5.0565230846405,
MeasurementStartTime: "2018-11-01 15:33:20",
ProbeIP: "1.2.3.4",
ProbeASN: rt.ProbeASN,
ProbeCC: rt.ProbeCC,
ReportID: ID,
ResolverASN: "AS15169",
ResolverIP: "8.8.8.8",
ResolverNetworkName: "Google LLC",
SoftwareName: rt.SoftwareName,
SoftwareVersion: rt.SoftwareVersion,
TestKeys: fakeTestKeys{Failure: nil},
TestName: rt.TestName,
TestStartTime: rt.TestStartTime,
TestVersion: rt.TestVersion,
}
}
func TestNewReportTemplate(t *testing.T) {
m := &model.Measurement{
ProbeASN: "AS117",
ProbeCC: "IT",
SoftwareName: "ooniprobe-engine",
SoftwareVersion: "0.1.0",
TestName: "dummy",
TestStartTime: "2019-10-28 12:51:06",
TestVersion: "0.1.0",
}
rt := probeservices.NewReportTemplate(m)
expect := probeservices.ReportTemplate{
DataFormatVersion: probeservices.DefaultDataFormatVersion,
Format: probeservices.DefaultFormat,
ProbeASN: "AS117",
ProbeCC: "IT",
SoftwareName: "ooniprobe-engine",
SoftwareVersion: "0.1.0",
TestName: "dummy",
TestStartTime: "2019-10-28 12:51:06",
TestVersion: "0.1.0",
}
if diff := cmp.Diff(expect, rt); diff != "" {
t.Fatal(diff)
}
}
func TestReportLifecycle(t *testing.T) {
ctx := context.Background()
template := probeservices.ReportTemplate{
DataFormatVersion: probeservices.DefaultDataFormatVersion,
Format: probeservices.DefaultFormat,
ProbeASN: "AS0",
ProbeCC: "ZZ",
SoftwareName: "ooniprobe-engine",
SoftwareVersion: "0.1.0",
TestName: "dummy",
TestStartTime: "2019-10-28 12:51:06",
TestVersion: "0.1.0",
}
client := newclient()
report, err := client.OpenReport(ctx, template)
if err != nil {
t.Fatal(err)
}
measurement := makeMeasurement(template, report.ReportID())
if report.CanSubmit(&measurement) != true {
t.Fatal("report should be able to submit this measurement")
}
if err = report.SubmitMeasurement(ctx, &measurement); err != nil {
t.Fatal(err)
}
if measurement.ReportID != report.ReportID() {
t.Fatal("report ID mismatch")
}
}
func TestReportLifecycleWrongExperiment(t *testing.T) {
ctx := context.Background()
template := probeservices.ReportTemplate{
DataFormatVersion: probeservices.DefaultDataFormatVersion,
Format: probeservices.DefaultFormat,
ProbeASN: "AS0",
ProbeCC: "ZZ",
SoftwareName: "ooniprobe-engine",
SoftwareVersion: "0.1.0",
TestName: "dummy",
TestStartTime: "2019-10-28 12:51:06",
TestVersion: "0.1.0",
}
client := newclient()
report, err := client.OpenReport(ctx, template)
if err != nil {
t.Fatal(err)
}
measurement := makeMeasurement(template, report.ReportID())
measurement.TestName = "antani"
if report.CanSubmit(&measurement) != false {
t.Fatal("report should not be able to submit this measurement")
}
}
func TestOpenReportInvalidDataFormatVersion(t *testing.T) {
ctx := context.Background()
template := probeservices.ReportTemplate{
DataFormatVersion: "0.1.0",
Format: probeservices.DefaultFormat,
ProbeASN: "AS0",
ProbeCC: "ZZ",
SoftwareName: "ooniprobe-engine",
SoftwareVersion: "0.1.0",
TestName: "dummy",
TestStartTime: "2019-10-28 12:51:06",
TestVersion: "0.1.0",
}
client := newclient()
report, err := client.OpenReport(ctx, template)
if !errors.Is(err, probeservices.ErrUnsupportedDataFormatVersion) {
t.Fatal("not the error we expected")
}
if report != nil {
t.Fatal("expected a nil report here")
}
}
func TestOpenReportInvalidFormat(t *testing.T) {
ctx := context.Background()
template := probeservices.ReportTemplate{
DataFormatVersion: probeservices.DefaultDataFormatVersion,
Format: "yaml",
ProbeASN: "AS0",
ProbeCC: "ZZ",
SoftwareName: "ooniprobe-engine",
SoftwareVersion: "0.1.0",
TestName: "dummy",
TestStartTime: "2019-10-28 12:51:06",
TestVersion: "0.1.0",
}
client := newclient()
report, err := client.OpenReport(ctx, template)
if !errors.Is(err, probeservices.ErrUnsupportedFormat) {
t.Fatal("not the error we expected")
}
if report != nil {
t.Fatal("expected a nil report here")
}
}
func TestJSONAPIClientCreateFailure(t *testing.T) {
ctx := context.Background()
template := probeservices.ReportTemplate{
DataFormatVersion: probeservices.DefaultDataFormatVersion,
Format: probeservices.DefaultFormat,
ProbeASN: "AS0",
ProbeCC: "ZZ",
SoftwareName: "ooniprobe-engine",
SoftwareVersion: "0.1.0",
TestName: "dummy",
TestStartTime: "2019-10-28 12:51:06",
TestVersion: "0.1.0",
}
client := newclient()
client.BaseURL = "\t" // breaks the URL parser
report, err := client.OpenReport(ctx, template)
if err == nil || !strings.HasSuffix(err.Error(), "invalid control character in URL") {
t.Fatal("not the error we expected")
}
if report != nil {
t.Fatal("expected a nil report here")
}
}
func TestOpenResponseNoJSONSupport(t *testing.T) {
server := httptest.NewServer(
http.HandlerFunc(func(writer http.ResponseWriter, req *http.Request) {
writer.Write([]byte(`{"ID":"abc","supported_formats":["yaml"]}`))
}),
)
defer server.Close()
ctx := context.Background()
template := probeservices.ReportTemplate{
DataFormatVersion: probeservices.DefaultDataFormatVersion,
Format: probeservices.DefaultFormat,
ProbeASN: "AS0",
ProbeCC: "ZZ",
SoftwareName: "ooniprobe-engine",
SoftwareVersion: "0.1.0",
TestName: "dummy",
TestStartTime: "2019-10-28 12:51:06",
TestVersion: "0.1.0",
}
client := newclient()
client.BaseURL = server.URL
report, err := client.OpenReport(ctx, template)
if !errors.Is(err, probeservices.ErrJSONFormatNotSupported) {
t.Fatal("expected an error here")
}
if report != nil {
t.Fatal("expected a nil report here")
}
}
func TestEndToEnd(t *testing.T) {
server := httptest.NewServer(
http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if r.RequestURI == "/report" {
w.Write([]byte(`{"report_id":"_id","supported_formats":["json"]}`))
return
}
if r.RequestURI == "/report/_id" {
data, err := iox.ReadAllContext(r.Context(), r.Body)
if err != nil {
panic(err)
}
sdata, err := ioutil.ReadFile("../testdata/collector-expected.jsonl")
if err != nil {
panic(err)
}
if diff := cmp.Diff(data, sdata); diff != "" {
panic(diff)
}
w.Write([]byte(`{"measurement_id":"e00c584e6e9e5326"}`))
return
}
if r.RequestURI == "/report/_id/close" {
w.Write([]byte(`{}`))
return
}
panic(r.RequestURI)
}),
)
defer server.Close()
ctx := context.Background()
template := probeservices.ReportTemplate{
DataFormatVersion: probeservices.DefaultDataFormatVersion,
Format: probeservices.DefaultFormat,
ProbeASN: "AS0",
ProbeCC: "ZZ",
SoftwareName: "ooniprobe-engine",
SoftwareVersion: "0.1.0",
TestName: "dummy",
TestStartTime: "2018-11-01 15:33:17",
TestVersion: "0.1.0",
}
client := newclient()
client.BaseURL = server.URL
report, err := client.OpenReport(ctx, template)
if err != nil {
t.Fatal(err)
}
measurement := makeMeasurement(template, report.ReportID())
if err = report.SubmitMeasurement(ctx, &measurement); err != nil {
t.Fatal(err)
}
}
type RecordingReportChannel struct {
tmpl probeservices.ReportTemplate
m []*model.Measurement
mu sync.Mutex
}
func (rrc *RecordingReportChannel) CanSubmit(m *model.Measurement) bool {
return reflect.DeepEqual(probeservices.NewReportTemplate(m), rrc.tmpl)
}
func (rrc *RecordingReportChannel) SubmitMeasurement(ctx context.Context, m *model.Measurement) error {
if ctx.Err() != nil {
return ctx.Err()
}
rrc.mu.Lock()
defer rrc.mu.Unlock()
rrc.m = append(rrc.m, m)
return nil
}
func (rrc *RecordingReportChannel) Close(ctx context.Context) error {
if ctx.Err() != nil {
return ctx.Err()
}
rrc.mu.Lock()
defer rrc.mu.Unlock()
return nil
}
func (rrc *RecordingReportChannel) ReportID() string {
return ""
}
type RecordingReportOpener struct {
channels []*RecordingReportChannel
mu sync.Mutex
}
func (rro *RecordingReportOpener) OpenReport(
ctx context.Context, rt probeservices.ReportTemplate,
) (probeservices.ReportChannel, error) {
if ctx.Err() != nil {
return nil, ctx.Err()
}
rrc := &RecordingReportChannel{tmpl: rt}
rro.mu.Lock()
defer rro.mu.Unlock()
rro.channels = append(rro.channels, rrc)
return rrc, nil
}
func TestOpenReportCancelledContext(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
cancel() // immediately abort
template := probeservices.ReportTemplate{
DataFormatVersion: probeservices.DefaultDataFormatVersion,
Format: probeservices.DefaultFormat,
ProbeASN: "AS0",
ProbeCC: "ZZ",
SoftwareName: "ooniprobe-engine",
SoftwareVersion: "0.1.0",
TestName: "dummy",
TestStartTime: "2019-10-28 12:51:06",
TestVersion: "0.1.0",
}
client := newclient()
report, err := client.OpenReport(ctx, template)
if !errors.Is(err, context.Canceled) {
t.Fatal("not the error we expected")
}
if report != nil {
t.Fatal("expected nil report here")
}
}
func TestSubmitMeasurementCancelledContext(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
template := probeservices.ReportTemplate{
DataFormatVersion: probeservices.DefaultDataFormatVersion,
Format: probeservices.DefaultFormat,
ProbeASN: "AS0",
ProbeCC: "ZZ",
SoftwareName: "ooniprobe-engine",
SoftwareVersion: "0.1.0",
TestName: "dummy",
TestStartTime: "2019-10-28 12:51:06",
TestVersion: "0.1.0",
}
client := newclient()
report, err := client.OpenReport(ctx, template)
if err != nil {
t.Fatal(err)
}
measurement := makeMeasurement(template, report.ReportID())
if report.CanSubmit(&measurement) != true {
t.Fatal("report should be able to submit this measurement")
}
cancel() // cause submission to fail
err = report.SubmitMeasurement(ctx, &measurement)
if !errors.Is(err, context.Canceled) {
t.Fatalf("not the error we expected: %+v", err)
}
if measurement.ReportID != "" {
t.Fatal("report ID should be empty here")
}
}
func makeMeasurementWithoutTemplate(failure, testName string) *model.Measurement {
return &model.Measurement{
DataFormatVersion: probeservices.DefaultDataFormatVersion,
ID: "bdd20d7a-bba5-40dd-a111-9863d7908572",
MeasurementRuntime: 5.0565230846405,
MeasurementStartTime: "2018-11-01 15:33:20",
ProbeIP: "1.2.3.4",
ProbeASN: "AS123",
ProbeCC: "IT",
ReportID: "",
ResolverASN: "AS15169",
ResolverIP: "8.8.8.8",
ResolverNetworkName: "Google LLC",
SoftwareName: "miniooni",
SoftwareVersion: "0.1.0-dev",
TestKeys: fakeTestKeys{Failure: &failure},
TestName: testName,
TestStartTime: "2018-11-01 15:33:17",
TestVersion: "0.1.0",
}
}
func TestSubmitterLifecyle(t *testing.T) {
rro := &RecordingReportOpener{}
submitter := probeservices.NewSubmitter(rro, log.Log)
ctx := context.Background()
m1 := makeMeasurementWithoutTemplate("antani", "example")
if err := submitter.Submit(ctx, m1); err != nil {
t.Fatal(err)
}
m2 := makeMeasurementWithoutTemplate("mascetti", "example")
if err := submitter.Submit(ctx, m2); err != nil {
t.Fatal(err)
}
m3 := makeMeasurementWithoutTemplate("antani", "example_extended")
if err := submitter.Submit(ctx, m3); err != nil {
t.Fatal(err)
}
if len(rro.channels) != 2 {
t.Fatal("unexpected number of channels")
}
if len(rro.channels[0].m) != 2 {
t.Fatal("unexpected number of measurements in first channel")
}
if len(rro.channels[1].m) != 1 {
t.Fatal("unexpected number of measurements in second channel")
}
}
func TestSubmitterCannotOpenNewChannel(t *testing.T) {
rro := &RecordingReportOpener{}
submitter := probeservices.NewSubmitter(rro, log.Log)
ctx, cancel := context.WithCancel(context.Background())
cancel() // fail immediately
m1 := makeMeasurementWithoutTemplate("antani", "example")
if err := submitter.Submit(ctx, m1); !errors.Is(err, context.Canceled) {
t.Fatal("not the error we expected")
}
m2 := makeMeasurementWithoutTemplate("mascetti", "example")
if err := submitter.Submit(ctx, m2); !errors.Is(err, context.Canceled) {
t.Fatal(err)
}
m3 := makeMeasurementWithoutTemplate("antani", "example_extended")
if err := submitter.Submit(ctx, m3); !errors.Is(err, context.Canceled) {
t.Fatal(err)
}
if len(rro.channels) != 0 {
t.Fatal("unexpected number of channels")
}
}