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|
package consistent
import (
"context"
"io/ioutil"
"os"
"strconv"
"sync"
"sync/atomic"
"testing"
"time"
"github.com/kurin/blazer/b2"
)
const (
apiID = "B2_ACCOUNT_ID"
apiKey = "B2_SECRET_KEY"
bucketName = "consistobucket"
)
func TestOperationLive(t *testing.T) {
ctx := context.Background()
bucket, done := startLiveTest(ctx, t)
defer done()
g := NewGroup(bucket, "tester")
name := "some_kinda_name/thing.txt"
var wg sync.WaitGroup
for i := 0; i < 10; i++ {
wg.Add(1)
i := i
go func() {
defer wg.Done()
for j := 0; j < 10; j++ {
var n int
if err := g.Operate(ctx, name, func(b []byte) ([]byte, error) {
if len(b) > 0 {
i, err := strconv.Atoi(string(b))
if err != nil {
return nil, err
}
n = i
}
return []byte(strconv.Itoa(n + 1)), nil
}); err != nil {
t.Error(err)
}
t.Logf("thread %d: successful %d++", i, n)
}
}()
}
wg.Wait()
r, err := g.NewReader(ctx, name)
if err != nil {
t.Fatal(err)
}
defer r.Close()
b, err := ioutil.ReadAll(r)
if err != nil {
t.Fatal(err)
}
n, err := strconv.Atoi(string(b))
if err != nil {
t.Fatal(err)
}
if n != 100 {
t.Errorf("result: got %d, want 100", n)
}
}
type jsonThing struct {
Boop int `json:"boop_field"`
Thread int `json:"thread_id"`
}
func TestOperationJSONLive(t *testing.T) {
ctx := context.Background()
bucket, done := startLiveTest(ctx, t)
defer done()
g := NewGroup(bucket, "tester")
name := "some_kinda_json/thing.json"
var wg sync.WaitGroup
for i := 0; i < 4; i++ {
wg.Add(1)
i := i
go func() {
var n int
defer wg.Done()
for j := 0; j < 4; j++ {
// Pass both a struct and a pointer to a struct.
var face interface{}
face = jsonThing{}
if j%2 == 0 {
face = &jsonThing{}
}
if err := g.OperateJSON(ctx, name, face, func(j interface{}) (interface{}, error) {
jt := j.(*jsonThing)
n = jt.Boop
return &jsonThing{
Boop: jt.Boop + 1,
Thread: i,
}, nil
}); err != nil {
t.Error(err)
}
t.Logf("thread %d: successful %d++", i, n)
}
}()
}
wg.Wait()
if err := g.OperateJSON(ctx, name, &jsonThing{}, func(i interface{}) (interface{}, error) {
jt := i.(*jsonThing)
if jt.Boop != 16 {
t.Errorf("got %d boops; want 16", jt.Boop)
}
return nil, nil
}); err != nil {
t.Error(err)
}
}
func TestMutex(t *testing.T) {
ctx := context.Background()
bucket, done := startLiveTest(ctx, t)
defer done()
g := NewGroup(bucket, "tester")
m := g.Mutex(ctx, "mootex")
var a int32
var wg sync.WaitGroup
for i := 0; i < 5; i++ {
wg.Add(1)
go func(i int) {
defer wg.Done()
for j := 0; j < 5; j++ {
m.Lock()
new := atomic.AddInt32(&a, 1)
if new != 1 {
t.Fatalf("two threads locked at once")
}
time.Sleep(20 * time.Millisecond)
new = atomic.AddInt32(&a, -1)
if new != 0 {
t.Fatalf("two threads locked at once")
}
t.Logf("thread %d: lock %d", i, j)
m.Unlock()
}
}(i)
}
wg.Wait()
}
func startLiveTest(ctx context.Context, t *testing.T) (*b2.Bucket, func()) {
id := os.Getenv(apiID)
key := os.Getenv(apiKey)
if id == "" || key == "" {
t.Skipf("B2_ACCOUNT_ID or B2_SECRET_KEY unset; skipping integration tests")
return nil, nil
}
client, err := b2.NewClient(ctx, id, key)
if err != nil {
t.Fatal(err)
return nil, nil
}
bucket, err := client.NewBucket(ctx, id+"-"+bucketName, nil)
if err != nil {
t.Fatal(err)
return nil, nil
}
f := func() {
iter := bucket.List(ctx, b2.ListHidden())
for iter.Next() {
if err := iter.Object().Delete(ctx); err != nil {
t.Error(err)
}
}
if err := iter.Err(); err != nil && !b2.IsNotExist(err) {
t.Error(err)
}
if err := bucket.Delete(ctx); err != nil && !b2.IsNotExist(err) {
t.Error(err)
}
}
return bucket, f
}
type object struct {
o *b2.Object
err error
}
|
