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package server
import (
"context"
"encoding/json"
"io"
"net/http"
"testing"
"time"
"github.com/golang/mock/gomock"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
gapi "gitlab.com/gitlab-org/cluster-integration/gitlab-agent/v16/internal/gitlab/api"
"gitlab.com/gitlab-org/cluster-integration/gitlab-agent/v16/internal/module/modserver"
"gitlab.com/gitlab-org/cluster-integration/gitlab-agent/v16/internal/module/modshared"
"gitlab.com/gitlab-org/cluster-integration/gitlab-agent/v16/internal/module/usage_metrics"
"gitlab.com/gitlab-org/cluster-integration/gitlab-agent/v16/internal/tool/httpz"
"gitlab.com/gitlab-org/cluster-integration/gitlab-agent/v16/internal/tool/testing/matcher"
"gitlab.com/gitlab-org/cluster-integration/gitlab-agent/v16/internal/tool/testing/mock_gitlab"
"gitlab.com/gitlab-org/cluster-integration/gitlab-agent/v16/internal/tool/testing/mock_modserver"
"gitlab.com/gitlab-org/cluster-integration/gitlab-agent/v16/internal/tool/testing/mock_usage_metrics"
"gitlab.com/gitlab-org/cluster-integration/gitlab-agent/v16/internal/tool/testing/testhelpers"
"gitlab.com/gitlab-org/cluster-integration/gitlab-agent/v16/pkg/kascfg"
"go.uber.org/zap/zaptest"
"google.golang.org/protobuf/types/known/durationpb"
)
var (
_ modserver.Module = &module{}
_ modserver.Factory = &Factory{}
_ modserver.ApplyDefaults = ApplyDefaults
)
func TestSendUsage(t *testing.T) {
t.Parallel()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
uniqueCounter := []int64{1, 2}
counters, uniqueCounters, payload := setUpPayload(5, uniqueCounter)
m, tracker, _ := setupModule(t, func(w http.ResponseWriter, r *http.Request) {
assertNoContentRequest(t, r, payload)
w.WriteHeader(http.StatusNoContent)
})
ud := &usage_metrics.UsageData{Counters: counters, UniqueCounters: uniqueCounters}
gomock.InOrder(
tracker.EXPECT().
CloneUsageData().
Return(ud),
tracker.EXPECT().
Subtract(ud),
tracker.EXPECT().
CloneUsageData().
DoAndReturn(func() *usage_metrics.UsageData {
cancel()
return &usage_metrics.UsageData{}
}),
tracker.EXPECT().
CloneUsageData().
Return(&usage_metrics.UsageData{}),
)
require.NoError(t, m.Run(ctx))
}
func TestSendUsageFailureAndRetry(t *testing.T) {
t.Parallel()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
uniqueCounter := []int64{1, 2}
uniqueCounter2 := []int64{6, 7}
counters, uniqueCounters, payload := setUpPayload(5, uniqueCounter)
ud1 := &usage_metrics.UsageData{Counters: counters, UniqueCounters: uniqueCounters}
counters2, uniqueCounters2, payload2 := setUpPayload(10, uniqueCounter2)
ud2 := &usage_metrics.UsageData{Counters: counters2, UniqueCounters: uniqueCounters2}
var call int
m, tracker, mockApi := setupModule(t, func(w http.ResponseWriter, r *http.Request) {
call++
switch call {
case 1:
assertNoContentRequest(t, r, payload)
w.WriteHeader(http.StatusInternalServerError)
case 2:
assertNoContentRequest(t, r, payload2)
w.WriteHeader(http.StatusNoContent)
default:
assert.Fail(t, "unexpected call", call)
}
})
gomock.InOrder(
tracker.EXPECT().
CloneUsageData().
Return(ud1),
mockApi.EXPECT().
HandleProcessingError(gomock.Any(), gomock.Any(), modshared.NoAgentId, "Failed to send usage data", matcher.ErrorEq("HTTP status code: 500 for path /api/v4/internal/kubernetes/usage_metrics")),
tracker.EXPECT().
CloneUsageData().
Return(ud2),
tracker.EXPECT().
Subtract(ud2),
tracker.EXPECT().
CloneUsageData().
DoAndReturn(func() *usage_metrics.UsageData {
cancel()
return &usage_metrics.UsageData{}
}),
tracker.EXPECT().
CloneUsageData().
Return(&usage_metrics.UsageData{}),
)
require.NoError(t, m.Run(ctx))
}
func TestSendUsageHttp(t *testing.T) {
t.Parallel()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
uniqueCounter := []int64{1, 2}
counters, uniqueCounters, payload := setUpPayload(5, uniqueCounter)
ud := &usage_metrics.UsageData{Counters: counters, UniqueCounters: uniqueCounters}
m, tracker, _ := setupModule(t, func(w http.ResponseWriter, r *http.Request) {
assertNoContentRequest(t, r, payload)
w.WriteHeader(http.StatusNoContent)
})
gomock.InOrder(
tracker.EXPECT().
CloneUsageData().
Return(ud),
tracker.EXPECT().
Subtract(ud).
Do(func(ud *usage_metrics.UsageData) {
cancel()
}),
tracker.EXPECT().
CloneUsageData().
Return(&usage_metrics.UsageData{}),
)
require.NoError(t, m.Run(ctx))
}
func setupModule(t *testing.T, handler func(http.ResponseWriter, *http.Request)) (*module, *mock_usage_metrics.MockUsageTrackerInterface, *mock_modserver.MockApi) {
ctrl := gomock.NewController(t)
tracker := mock_usage_metrics.NewMockUsageTrackerInterface(ctrl)
mockApi := mock_modserver.NewMockApi(ctrl)
f := Factory{
UsageTracker: tracker,
}
config := &kascfg.ConfigurationFile{}
ApplyDefaults(config)
config.Observability.UsageReportingPeriod = durationpb.New(50 * time.Millisecond)
m, err := f.New(&modserver.Config{
Log: zaptest.NewLogger(t),
Api: mockApi,
Config: config,
GitLabClient: mock_gitlab.SetupClient(t, gapi.UsagePingApiPath, handler),
UsageTracker: tracker,
})
require.NoError(t, err)
return m.(*module), tracker, mockApi
}
func assertNoContentRequest(t *testing.T, r *http.Request, expectedPayload interface{}) {
testhelpers.AssertRequestMethod(t, r, http.MethodPost)
assert.Empty(t, r.Header[httpz.AcceptHeader])
testhelpers.AssertRequestContentTypeJson(t, r)
testhelpers.AssertRequestUserAgent(t, r, testhelpers.KasUserAgent)
testhelpers.AssertJWTSignature(t, r)
expectedBin, err := json.Marshal(expectedPayload)
if !assert.NoError(t, err) {
return
}
var expected interface{}
err = json.Unmarshal(expectedBin, &expected)
if !assert.NoError(t, err) {
return
}
actualBin, err := io.ReadAll(r.Body)
if !assert.NoError(t, err) {
return
}
var actual interface{}
err = json.Unmarshal(actualBin, &actual)
if !assert.NoError(t, err) {
return
}
assert.Equal(t, expected, actual)
}
func setUpPayload(counter int64, uniqueCounter []int64) (map[string]int64, map[string][]int64, map[string]interface{}) {
payload := map[string]interface{}{}
var counters = map[string]int64{
"x": counter,
}
var uniqueCounters = map[string][]int64{
"x": uniqueCounter,
}
payload["counters"] = counters
payload["unique_counters"] = uniqueCounters
return counters, uniqueCounters, payload
}
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