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package performance
import (
"bytes"
"errors"
"fmt"
"runtime"
"github.com/lsegal/gucumber"
"github.com/stretchr/testify/assert"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/awstesting/mock"
"github.com/aws/aws-sdk-go/service/s3"
)
func init() {
// Go loads all of its dependecies on compile
gucumber.Given(`^I have loaded my SDK and its dependencies$`, func() {
})
// Performance
gucumber.When(`^I create and discard (\d+) clients for each service$`, func(i1 int) {
services := gucumber.World["services"].([]func())
err := benchmarkTask(fmt.Sprintf("%d_create_and_discard_clients", i1), services, i1)
gucumber.World["error"] = err
})
gucumber.Then(`^I should not have leaked any resources$`, func() {
runtime.GC()
err, ok := gucumber.World["error"].(awserr.Error)
assert.False(gucumber.T, ok, "error returned")
assert.NoError(gucumber.T, err)
})
gucumber.And(`^I have a list of services$`, func() {
mapCreateClients()
})
gucumber.And(`^I take a snapshot of my resources$`, func() {
// Can't take a memory snapshot here, because gucumber does some
// allocation between each instruction leading to unreliable numbers
})
gucumber.When(`^I create a client for each service$`, func() {
buildAnArrayOfClients()
})
gucumber.And("^I execute (\\d+) command\\(s\\) on each client$", func(i1 int) {
clientFns := gucumber.World["clientFns"].([]func())
err := benchmarkTask(fmt.Sprintf("%d_commands_on_clients", i1), clientFns, i1)
gucumber.World["error"] = err
})
gucumber.And(`^I destroy all the clients$`, func() {
delete(gucumber.World, "clientFns")
runtime.GC()
})
gucumber.Given(`^I have a (\d+) byte file$`, func(i1 int) {
gucumber.World["file"] = make([]byte, i1)
})
gucumber.When(`^I upload the file$`, func() {
svc := s3.New(mock.Session)
memStatStart := &runtime.MemStats{}
runtime.ReadMemStats(memStatStart)
gucumber.World["start"] = memStatStart
svc.PutObjectRequest(&s3.PutObjectInput{
Bucket: aws.String("bucketmesilly"),
Key: aws.String("testKey"),
Body: bytes.NewReader(gucumber.World["file"].([]byte)),
})
})
gucumber.And(`then download the file$`, func() {
svc := s3.New(mock.Session)
svc.GetObjectRequest(&s3.GetObjectInput{
Bucket: aws.String("bucketmesilly"),
Key: aws.String("testKey"),
})
memStatEnd := &runtime.MemStats{}
runtime.ReadMemStats(memStatEnd)
memStatStart := gucumber.World["start"].(*runtime.MemStats)
if memStatStart.Alloc < memStatEnd.Alloc {
gucumber.World["error"] = errors.New("Leaked memory")
}
})
}
|
