lib/bakcup/azremote: follow-up after 5fd3aef549

Simplify tests by converting them to f-tests.

5fd3aef549
Signed-off-by: hagen1778 <roman@victoriametrics.com>
This commit is contained in:
hagen1778 2024-07-10 13:06:27 +02:00
parent 1c155a0cd1
commit 03e4c5c19c
No known key found for this signature in database
GPG key ID: 3BF75F3741CA9640
2 changed files with 54 additions and 156 deletions

View file

@ -33,26 +33,6 @@ const (
storageErrorCodeBlobNotFound = "BlobNotFound"
)
var (
errNoCredentials = fmt.Errorf(
`failed to detect credentials for AZBlob.
Ensure that one of the options is set: connection string at %q; shared key at %q and %q; account name at %q and set %q to "true"`,
envStorageAccCs,
envStorageAcctName,
envStorageAccKey,
envStorageAcctName,
envStorageDefault,
)
errInvalidCredentials = fmt.Errorf("failed to process credentials: only one of %s, %s and %s, or %s and %s can be specified",
envStorageAccCs,
envStorageAcctName,
envStorageAccKey,
envStorageAcctName,
envStorageDefault,
)
)
// FS represents filesystem for backups in Azure Blob Storage.
//
// Init must be called before calling other FS methods.
@ -109,7 +89,13 @@ func (fs *FS) newClient() (*service.Client, error) {
switch {
// can't specify any combination of more than one credential
case moreThanOne(hasConnString, (hasAccountName && hasAccountKey), (useDefault == "true" && hasAccountName)):
return nil, errInvalidCredentials
return nil, fmt.Errorf("failed to process credentials: only one of %s, %s and %s, or %s and %s can be specified",
envStorageAccCs,
envStorageAcctName,
envStorageAccKey,
envStorageAcctName,
envStorageDefault,
)
case hasConnString:
logger.Infof("Creating AZBlob service client from connection string")
return service.NewClientFromConnectionString(connString, nil)
@ -128,7 +114,15 @@ func (fs *FS) newClient() (*service.Client, error) {
}
return service.NewClient(serviceURL, creds, nil)
default:
return nil, errNoCredentials
return nil, fmt.Errorf(
`failed to detect credentials for AZBlob.
Ensure that one of the options is set: connection string at %q; shared key at %q and %q; account name at %q and set %q to "true"`,
envStorageAccCs,
envStorageAcctName,
envStorageAccKey,
envStorageAcctName,
envStorageDefault,
)
}
}

View file

@ -1,155 +1,59 @@
package azremote
import (
"bytes"
"errors"
"strings"
"testing"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
)
func Test_cleanDirectory(t *testing.T) {
cases := map[string]struct {
Dir string
ExpectedDir string
}{
"dir / prefix is removed": {
Dir: "/foo/",
ExpectedDir: "foo/",
},
"multiple dir prefix / is removed": {
Dir: "//foo/",
ExpectedDir: "foo/",
},
"suffix is added": {
Dir: "foo",
ExpectedDir: "foo/",
},
}
for name, test := range cases {
t.Run(name, func(t *testing.T) {
dir := cleanDirectory(test.Dir)
if dir != test.ExpectedDir {
t.Errorf("expected dir %q, got %q", test.ExpectedDir, dir)
}
})
f := func(dir, exp string) {
t.Helper()
got := cleanDirectory(dir)
if got != exp {
t.Errorf("expected dir %q, got %q", exp, got)
}
}
f("/foo/", "foo/")
f("//foo/", "foo/")
f("foo", "foo/")
}
func Test_FSInit(t *testing.T) {
cases := map[string]struct {
IgnoreFakeEnv bool
Env testEnv
ExpectedErr error
ExpectedLogs []string
}{
"connection string env var is used": {
Env: map[string]string{
envStorageAccCs: "BlobEndpoint=https://test.blob.core.windows.net/;SharedAccessSignature=",
},
ExpectedLogs: []string{`Creating AZBlob service client from connection string`},
},
"base envtemplate package is used and connection string err bubbles": {
IgnoreFakeEnv: true,
Env: map[string]string{
envStorageAccCs: "BlobEndpoint=https://test.blob.core.windows.net/;SharedAccessSignature=",
},
ExpectedErr: errNoCredentials,
},
"only storage account name is an err": {
Env: map[string]string{
envStorageAcctName: "test",
},
ExpectedErr: errNoCredentials,
},
"uses shared key credential": {
Env: map[string]string{
envStorageAcctName: "test",
envStorageAccKey: "dGVhcG90Cg==",
},
ExpectedLogs: []string{`Creating AZBlob service client from account name and key`},
},
"allows overriding domain name with account name and key": {
Env: map[string]string{
envStorageAcctName: "test",
envStorageAccKey: "dGVhcG90Cg==",
envStorageDomain: "foo.bar",
},
ExpectedLogs: []string{
`Creating AZBlob service client from account name and key`,
`Overriding default Azure blob domain with "foo.bar"`,
},
},
"can't specify both connection string and shared key": {
Env: map[string]string{
envStorageAccCs: "teapot",
envStorageAcctName: "test",
envStorageAccKey: "dGVhcG90Cg==",
},
ExpectedErr: errInvalidCredentials,
},
"just use default is an err": {
Env: map[string]string{
envStorageDefault: "true",
},
ExpectedErr: errNoCredentials,
},
"uses default credential": {
Env: map[string]string{
envStorageDefault: "true",
envStorageAcctName: "test",
},
ExpectedLogs: []string{`Creating AZBlob service client from default credential`},
},
}
f := func(expErr string, params ...string) {
t.Helper()
for name, test := range cases {
t.Run(name, func(t *testing.T) {
tlog := &testLogger{}
env := make(testEnv)
for i := 0; i < len(params); i += 2 {
env[params[i]] = params[i+1]
}
logger.SetOutputForTests(tlog)
t.Cleanup(logger.ResetOutputForTest)
fs := &FS{Dir: "foo"}
if test.Env != nil && !test.IgnoreFakeEnv {
fs.env = test.Env.LookupEnv
fs := &FS{Dir: "foo"}
fs.env = env.LookupEnv
err := fs.Init()
if err != nil {
if expErr == "" {
t.Fatalf("unexpected error %v", err)
}
err := fs.Init()
if err != nil && !errors.Is(err, test.ExpectedErr) {
t.Errorf("expected error %q, got %q", test.ExpectedErr, err)
if !strings.Contains(err.Error(), expErr) {
t.Fatalf("expected error: \n%q, \ngot: \n%v", expErr, err)
}
tlog.MustContain(t, test.ExpectedLogs...)
})
}
}
type testLogger struct {
buf *bytes.Buffer
}
func (l *testLogger) Write(p []byte) (n int, err error) {
if l.buf == nil {
l.buf = &bytes.Buffer{}
}
return l.buf.Write(p)
}
func (l *testLogger) MustContain(t *testing.T, vals ...string) {
t.Helper()
contents := l.buf.String()
for _, val := range vals {
if !strings.Contains(contents, val) {
t.Errorf("expected log to contain %q, got %q", val, l.buf.String())
return
}
if expErr != "" {
t.Fatalf("expected to have an error %q, instead got nil", expErr)
}
}
f("", envStorageAccCs, "BlobEndpoint=https://test.blob.core.windows.net/;SharedAccessSignature=")
f("", envStorageAcctName, "test", envStorageAccKey, "dGVhcG90Cg==")
f("", envStorageDefault, "true", envStorageAcctName, "test")
f("", envStorageAcctName, "test", envStorageAccKey, "dGVhcG90Cg==", envStorageDomain, "foo.bar")
f("failed to detect credentials for AZBlob")
f("failed to detect credentials for AZBlob", envStorageAcctName, "test")
f("failed to create Shared Key", envStorageAcctName, "", envStorageAccKey, "!")
f("connection string is either blank or malformed", envStorageAccCs, "")
f("failed to process credentials: only one of", envStorageAccCs, "teapot", envStorageAcctName, "test", envStorageAccKey, "dGVhcG90Cg==")
}
type testEnv map[string]string