owpengram-server/internal/loadharness/report_test.go

127 lines
4.3 KiB
Go

package loadharness
import (
"context"
"errors"
"fmt"
"net"
"testing"
"time"
"github.com/iamxvbaba/td/pool"
tdrpc "github.com/iamxvbaba/td/rpc"
)
func TestOperationMetricsUsesBoundedHistogramAndFixedErrorClasses(t *testing.T) {
metrics := &operationMetrics{}
metrics.observe(time.Now().Add(-20*time.Millisecond), nil)
metrics.observe(time.Now().Add(-200*time.Millisecond), errors.New("FLOOD_WAIT_1 phone=secret"))
report := metrics.report()
if report.Count != 2 || report.Errors != 1 || report.FloodWaits != 1 {
t.Fatalf("report = %#v", report)
}
if report.P50UpperMS <= 0 || report.P99UpperMS < report.P50UpperMS || report.MaxMS <= 0 {
t.Fatalf("latency report = %#v", report)
}
}
func TestClassifyErrorReasonUsesFiniteRedactedVocabulary(t *testing.T) {
tests := []struct {
err error
want string
}{
{errors.New("dial tcp 10.0.0.1:2398: socket: too many open files"), "file_descriptor_limit"},
{errors.New("read: temporary auth key not found: pfs reconnect required"), "pfs_reconnect"},
{errors.New("read tcp: EOF auth_key_id=secret"), "eof"},
}
for _, test := range tests {
if got := classifyErrorReason(test.err); got != test.want {
t.Fatalf("classifyErrorReason(%v) = %q, want %q", test.err, got, test.want)
}
}
}
func TestClassifyErrorRecognizesTypedReconnectFailures(t *testing.T) {
tests := []error{
fmt.Errorf("invoke: %w", tdrpc.ErrEngineClosed),
fmt.Errorf("acquire: %w", pool.ErrConnDead),
fmt.Errorf("read: %w", net.ErrClosed),
errors.New("write: broken pipe"),
}
for _, err := range tests {
if got := classifyError(err); got != "connection" {
t.Fatalf("classifyError(%v) = %q, want connection", err, got)
}
}
}
func TestOperationMetricsSeparatesHarnessCancellation(t *testing.T) {
metrics := &operationMetrics{}
metrics.observe(time.Now(), context.Canceled)
report := metrics.report()
if report.Count != 1 || report.Canceled != 1 || report.Errors != 0 {
t.Fatalf("report = %#v", report)
}
}
func TestEvaluateReportAllowsOnlyConnectionErrorsForExpectedRestart(t *testing.T) {
report := &RunReport{
ExpectedSessions: 2, PeakReadySessions: 2, Reconnects: 2,
SteadySamples: 1, SteadyReadyRatio: 1, MinSteadyReadySessions: 2,
Operations: map[string]OperationReport{
"connection.dead": {Count: 2, Errors: 2, ConnectionErrors: 2},
},
}
evaluateReport(report, RunConfig{MinimumReadyRatio: 1, ExpectServerRestart: true})
if !report.Pass {
t.Fatalf("report = %#v", report)
}
report.Operations["ping"] = OperationReport{Count: 1, Errors: 1}
report.Failures = nil
evaluateReport(report, RunConfig{MinimumReadyRatio: 1, ExpectServerRestart: true})
if report.Pass {
t.Fatalf("unexpected application error passed: %#v", report)
}
}
func TestEvaluateReportRequiresReclamationAndNoFloodWait(t *testing.T) {
report := &RunReport{
ExpectedSessions: 10, PeakReadySessions: 10, ServerMetricsScrapes: 1,
SteadySamples: 1, SteadyReadyRatio: 1, MinSteadyReadySessions: 10,
Operations: map[string]OperationReport{"ping": {Count: 10}},
BaselineServerMetrics: map[string]float64{
"telesrv_mtproto_raw_connections": 2,
"telesrv_mtproto_logical_outbox_bytes": 3,
},
FinalServerMetrics: map[string]float64{
"telesrv_mtproto_raw_connections": 2,
"telesrv_mtproto_logical_outbox_bytes": 4,
},
}
evaluateReport(report, RunConfig{MinimumReadyRatio: 1, RecoveryDuration: time.Minute, ServerMetricsURL: "http://metrics"})
if report.Pass || len(report.Failures) != 1 {
t.Fatalf("report = %#v", report)
}
}
func TestEvaluateReportAcceptsReturnToNonZeroSharedServerBaseline(t *testing.T) {
report := &RunReport{
ExpectedSessions: 10, PeakReadySessions: 10, ServerMetricsScrapes: 2,
SteadySamples: 1, SteadyReadyRatio: 1, MinSteadyReadySessions: 10,
Operations: map[string]OperationReport{"ping": {Count: 10}},
BaselineServerMetrics: map[string]float64{
"telesrv_mtproto_raw_connections": 2,
"telesrv_mtproto_logical_sessions": 2,
"telesrv_mtproto_logical_outbox_bytes": 1024,
},
FinalServerMetrics: map[string]float64{
"telesrv_mtproto_raw_connections": 2,
"telesrv_mtproto_logical_sessions": 2,
"telesrv_mtproto_logical_outbox_bytes": 1024,
},
}
evaluateReport(report, RunConfig{MinimumReadyRatio: 1, RecoveryDuration: time.Minute, ServerMetricsURL: "http://metrics"})
if !report.Pass || len(report.Failures) != 0 {
t.Fatalf("report = %#v", report)
}
}