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vsphere-influxdb-go/vendor/github.com/influxdata/influxdb/services/graphite/service_test.go
2017-10-25 20:52:40 +00:00

310 lines
7.9 KiB
Go

package graphite
import (
"errors"
"fmt"
"net"
"os"
"sync"
"testing"
"time"
"github.com/influxdata/influxdb/internal"
"github.com/influxdata/influxdb/models"
"github.com/influxdata/influxdb/services/meta"
"github.com/influxdata/influxdb/toml"
"github.com/uber-go/zap"
)
func Test_Service_OpenClose(t *testing.T) {
// Let the OS assign a random port since we are only opening and closing the service,
// not actually connecting to it.
c := Config{BindAddress: "127.0.0.1:0"}
service := NewTestService(&c)
// Closing a closed service is fine.
if err := service.Service.Close(); err != nil {
t.Fatal(err)
}
// Closing a closed service again is fine.
if err := service.Service.Close(); err != nil {
t.Fatal(err)
}
if err := service.Service.Open(); err != nil {
t.Fatal(err)
}
// Opening an already open service is fine.
if err := service.Service.Open(); err != nil {
t.Fatal(err)
}
// Reopening a previously opened service is fine.
if err := service.Service.Close(); err != nil {
t.Fatal(err)
}
if err := service.Service.Open(); err != nil {
t.Fatal(err)
}
// Tidy up.
if err := service.Service.Close(); err != nil {
t.Fatal(err)
}
}
func TestService_CreatesDatabase(t *testing.T) {
t.Parallel()
s := NewTestService(nil)
s.WritePointsFn = func(string, string, models.ConsistencyLevel, []models.Point) error {
return nil
}
called := make(chan struct{})
s.MetaClient.CreateDatabaseWithRetentionPolicyFn = func(name string, _ *meta.RetentionPolicySpec) (*meta.DatabaseInfo, error) {
if name != s.Service.database {
t.Errorf("\n\texp = %s\n\tgot = %s\n", s.Service.database, name)
}
// Allow some time for the caller to return and the ready status to
// be set.
time.AfterFunc(10*time.Millisecond, func() { called <- struct{}{} })
return nil, errors.New("an error")
}
if err := s.Service.Open(); err != nil {
t.Fatal(err)
}
points, err := models.ParsePointsString(`cpu value=1`)
if err != nil {
t.Fatal(err)
}
s.Service.batcher.In() <- points[0] // Send a point.
s.Service.batcher.Flush()
select {
case <-called:
// OK
case <-time.NewTimer(5 * time.Second).C:
t.Fatal("Service should have attempted to create database")
}
// ready status should not have been switched due to meta client error.
s.Service.mu.RLock()
ready := s.Service.ready
s.Service.mu.RUnlock()
if got, exp := ready, false; got != exp {
t.Fatalf("got %v, expected %v", got, exp)
}
// This time MC won't cause an error.
s.MetaClient.CreateDatabaseWithRetentionPolicyFn = func(name string, _ *meta.RetentionPolicySpec) (*meta.DatabaseInfo, error) {
// Allow some time for the caller to return and the ready status to
// be set.
time.AfterFunc(10*time.Millisecond, func() { called <- struct{}{} })
return nil, nil
}
s.Service.batcher.In() <- points[0] // Send a point.
s.Service.batcher.Flush()
select {
case <-called:
// OK
case <-time.NewTimer(5 * time.Second).C:
t.Fatal("Service should have attempted to create database")
}
// ready status should now be true.
s.Service.mu.RLock()
ready = s.Service.ready
s.Service.mu.RUnlock()
if got, exp := ready, true; got != exp {
t.Fatalf("got %v, expected %v", got, exp)
}
s.Service.Close()
}
func Test_Service_TCP(t *testing.T) {
t.Parallel()
now := time.Now().UTC().Round(time.Second)
config := Config{}
config.Database = "graphitedb"
config.BatchSize = 0 // No batching.
config.BatchTimeout = toml.Duration(time.Second)
config.BindAddress = ":0"
service := NewTestService(&config)
// Allow test to wait until points are written.
var wg sync.WaitGroup
wg.Add(1)
service.WritePointsFn = func(database, retentionPolicy string, consistencyLevel models.ConsistencyLevel, points []models.Point) error {
defer wg.Done()
pt, _ := models.NewPoint(
"cpu",
models.NewTags(map[string]string{}),
map[string]interface{}{"value": 23.456},
time.Unix(now.Unix(), 0))
if database != "graphitedb" {
t.Fatalf("unexpected database: %s", database)
} else if retentionPolicy != "" {
t.Fatalf("unexpected retention policy: %s", retentionPolicy)
} else if len(points) != 1 {
t.Fatalf("expected 1 point, got %d", len(points))
} else if points[0].String() != pt.String() {
t.Fatalf("expected point %v, got %v", pt.String(), points[0].String())
}
return nil
}
if err := service.Service.Open(); err != nil {
t.Fatalf("failed to open Graphite service: %s", err.Error())
}
// Connect to the graphite endpoint we just spun up
_, port, _ := net.SplitHostPort(service.Service.Addr().String())
conn, err := net.Dial("tcp", "127.0.0.1:"+port)
if err != nil {
t.Fatal(err)
}
data := []byte(`cpu 23.456 `)
data = append(data, []byte(fmt.Sprintf("%d", now.Unix()))...)
data = append(data, '\n')
data = append(data, []byte(`memory NaN `)...)
data = append(data, []byte(fmt.Sprintf("%d", now.Unix()))...)
data = append(data, '\n')
_, err = conn.Write(data)
conn.Close()
if err != nil {
t.Fatal(err)
}
wg.Wait()
}
func Test_Service_UDP(t *testing.T) {
t.Parallel()
now := time.Now().UTC().Round(time.Second)
config := Config{}
config.Database = "graphitedb"
config.BatchSize = 0 // No batching.
config.BatchTimeout = toml.Duration(time.Second)
config.BindAddress = ":10000"
config.Protocol = "udp"
service := NewTestService(&config)
// Allow test to wait until points are written.
var wg sync.WaitGroup
wg.Add(1)
service.WritePointsFn = func(database, retentionPolicy string, consistencyLevel models.ConsistencyLevel, points []models.Point) error {
defer wg.Done()
pt, _ := models.NewPoint(
"cpu",
models.NewTags(map[string]string{}),
map[string]interface{}{"value": 23.456},
time.Unix(now.Unix(), 0))
if database != "graphitedb" {
t.Fatalf("unexpected database: %s", database)
} else if retentionPolicy != "" {
t.Fatalf("unexpected retention policy: %s", retentionPolicy)
} else if points[0].String() != pt.String() {
t.Fatalf("unexpected points: %#v", points[0].String())
}
return nil
}
if err := service.Service.Open(); err != nil {
t.Fatalf("failed to open Graphite service: %s", err.Error())
}
// Connect to the graphite endpoint we just spun up
_, port, _ := net.SplitHostPort(service.Service.Addr().String())
conn, err := net.Dial("udp", "127.0.0.1:"+port)
if err != nil {
t.Fatal(err)
}
data := []byte(`cpu 23.456 `)
data = append(data, []byte(fmt.Sprintf("%d", now.Unix()))...)
data = append(data, '\n')
_, err = conn.Write(data)
if err != nil {
t.Fatal(err)
}
wg.Wait()
conn.Close()
}
type TestService struct {
Service *Service
MetaClient *internal.MetaClientMock
WritePointsFn func(database, retentionPolicy string, consistencyLevel models.ConsistencyLevel, points []models.Point) error
}
func NewTestService(c *Config) *TestService {
if c == nil {
defaultC := NewConfig()
c = &defaultC
}
gservice, err := NewService(*c)
if err != nil {
panic(err)
}
service := &TestService{
Service: gservice,
MetaClient: &internal.MetaClientMock{},
}
service.MetaClient.CreateRetentionPolicyFn = func(string, *meta.RetentionPolicySpec, bool) (*meta.RetentionPolicyInfo, error) {
return nil, nil
}
service.MetaClient.CreateDatabaseWithRetentionPolicyFn = func(string, *meta.RetentionPolicySpec) (*meta.DatabaseInfo, error) {
return nil, nil
}
service.MetaClient.DatabaseFn = func(string) *meta.DatabaseInfo {
return nil
}
service.MetaClient.RetentionPolicyFn = func(string, string) (*meta.RetentionPolicyInfo, error) {
return nil, nil
}
if testing.Verbose() {
service.Service.WithLogger(zap.New(
zap.NewTextEncoder(),
zap.Output(os.Stderr),
))
}
// Set the Meta Client and PointsWriter.
service.Service.MetaClient = service.MetaClient
service.Service.PointsWriter = service
return service
}
func (s *TestService) WritePointsPrivileged(database, retentionPolicy string, consistencyLevel models.ConsistencyLevel, points []models.Point) error {
return s.WritePointsFn(database, retentionPolicy, consistencyLevel, points)
}