restic/internal/backend/azure/azure_test.go

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package azure_test
import (
"bytes"
"context"
"fmt"
"io"
"os"
"testing"
"time"
"github.com/restic/restic/internal/backend"
"github.com/restic/restic/internal/backend/azure"
"github.com/restic/restic/internal/backend/test"
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"github.com/restic/restic/internal/errors"
"github.com/restic/restic/internal/restic"
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rtest "github.com/restic/restic/internal/test"
)
func newAzureTestSuite(t testing.TB) *test.Suite {
tr, err := backend.Transport(backend.TransportOptions{})
if err != nil {
t.Fatalf("cannot create transport for tests: %v", err)
}
return &test.Suite{
// do not use excessive data
MinimalData: true,
// NewConfig returns a config for a new temporary backend that will be used in tests.
NewConfig: func() (interface{}, error) {
azcfg, err := azure.ParseConfig(os.Getenv("RESTIC_TEST_AZURE_REPOSITORY"))
if err != nil {
return nil, err
}
cfg := azcfg.(azure.Config)
cfg.AccountName = os.Getenv("RESTIC_TEST_AZURE_ACCOUNT_NAME")
cfg.AccountKey = os.Getenv("RESTIC_TEST_AZURE_ACCOUNT_KEY")
cfg.Prefix = fmt.Sprintf("test-%d", time.Now().UnixNano())
return cfg, nil
},
// CreateFn is a function that creates a temporary repository for the tests.
Create: func(config interface{}) (restic.Backend, error) {
cfg := config.(azure.Config)
be, err := azure.Create(cfg, tr)
if err != nil {
return nil, err
}
exists, err := be.Test(context.TODO(), restic.Handle{Type: restic.ConfigFile})
if err != nil {
return nil, err
}
if exists {
return nil, errors.New("config already exists")
}
return be, nil
},
// OpenFn is a function that opens a previously created temporary repository.
Open: func(config interface{}) (restic.Backend, error) {
cfg := config.(azure.Config)
return azure.Open(cfg, tr)
},
// CleanupFn removes data created during the tests.
Cleanup: func(config interface{}) error {
cfg := config.(azure.Config)
be, err := azure.Open(cfg, tr)
if err != nil {
return err
}
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return be.Delete(context.TODO())
},
}
}
func TestBackendAzure(t *testing.T) {
defer func() {
if t.Skipped() {
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rtest.SkipDisallowed(t, "restic/backend/azure.TestBackendAzure")
}
}()
vars := []string{
"RESTIC_TEST_AZURE_ACCOUNT_NAME",
"RESTIC_TEST_AZURE_ACCOUNT_KEY",
"RESTIC_TEST_AZURE_REPOSITORY",
}
for _, v := range vars {
if os.Getenv(v) == "" {
t.Skipf("environment variable %v not set", v)
return
}
}
t.Logf("run tests")
newAzureTestSuite(t).RunTests(t)
}
func BenchmarkBackendAzure(t *testing.B) {
vars := []string{
"RESTIC_TEST_AZURE_ACCOUNT_NAME",
"RESTIC_TEST_AZURE_ACCOUNT_KEY",
"RESTIC_TEST_AZURE_REPOSITORY",
}
for _, v := range vars {
if os.Getenv(v) == "" {
t.Skipf("environment variable %v not set", v)
return
}
}
t.Logf("run tests")
newAzureTestSuite(t).RunBenchmarks(t)
}
func TestUploadLargeFile(t *testing.T) {
if os.Getenv("RESTIC_AZURE_TEST_LARGE_UPLOAD") == "" {
t.Skip("set RESTIC_AZURE_TEST_LARGE_UPLOAD=1 to test large uploads")
return
}
ctx, cancel := context.WithCancel(context.TODO())
defer cancel()
if os.Getenv("RESTIC_TEST_AZURE_REPOSITORY") == "" {
t.Skipf("environment variables not available")
return
}
azcfg, err := azure.ParseConfig(os.Getenv("RESTIC_TEST_AZURE_REPOSITORY"))
if err != nil {
if err != nil {
t.Fatal(err)
}
}
cfg := azcfg.(azure.Config)
cfg.AccountName = os.Getenv("RESTIC_TEST_AZURE_ACCOUNT_NAME")
cfg.AccountKey = os.Getenv("RESTIC_TEST_AZURE_ACCOUNT_KEY")
cfg.Prefix = fmt.Sprintf("test-upload-large-%d", time.Now().UnixNano())
tr, err := backend.Transport(backend.TransportOptions{})
if err != nil {
t.Fatal(err)
}
be, err := azure.Create(cfg, tr)
if err != nil {
if err != nil {
t.Fatal(err)
}
}
defer func() {
err := be.Delete(ctx)
if err != nil {
t.Fatal(err)
}
}()
data := rtest.Random(23, 300*1024*1024)
id := restic.Hash(data)
h := restic.Handle{Name: id.String(), Type: restic.DataFile}
t.Logf("hash of %d bytes: %v", len(data), id)
err = be.Save(ctx, h, restic.NewByteReader(data))
if err != nil {
t.Fatal(err)
}
defer func() {
err := be.Remove(ctx, h)
if err != nil {
t.Fatal(err)
}
}()
var tests = []struct {
offset, length int
}{
{0, len(data)},
{23, 1024},
{23 + 100*1024, 500},
{888 + 200*1024, 89999},
{888 + 100*1024*1024, 120 * 1024 * 1024},
}
for _, test := range tests {
t.Run("", func(t *testing.T) {
want := data[test.offset : test.offset+test.length]
buf := make([]byte, test.length)
err = be.Load(ctx, h, test.length, int64(test.offset), func(rd io.Reader) error {
_, err = io.ReadFull(rd, buf)
return err
})
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(buf, want) {
t.Fatalf("wrong bytes returned")
}
})
}
}