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|
//go:build go1.7
// +build go1.7
package v4
import (
"encoding/hex"
"fmt"
"strings"
"testing"
"time"
"github.com/aws/aws-sdk-go/aws/credentials"
)
type periodicBadCredentials struct {
call int
credentials *credentials.Credentials
}
func (p *periodicBadCredentials) Get() (credentials.Value, error) {
defer func() {
p.call++
}()
if p.call%2 == 0 {
return credentials.Value{}, fmt.Errorf("credentials error")
}
return p.credentials.Get()
}
type chunk struct {
headers, payload []byte
}
func mustDecodeHex(b []byte, err error) []byte {
if err != nil {
panic(err)
}
return b
}
func TestStreamingChunkSigner(t *testing.T) {
const (
region = "us-east-1"
service = "transcribe"
seedSignature = "9d9ab996c81f32c9d4e6fc166c92584f3741d1cb5ce325cd11a77d1f962c8de2"
)
staticCredentials := credentials.NewStaticCredentials("AKIDEXAMPLE", "wJalrXUtnFEMI/K7MDENG+bPxRfiCYEXAMPLEKEY", "")
currentTime := time.Date(2019, 1, 27, 22, 37, 54, 0, time.UTC)
cases := map[string]struct {
credentials credentialValueProvider
chunks []chunk
expectedSignatures map[int]string
expectedErrors map[int]string
}{
"signature calculation": {
credentials: staticCredentials,
chunks: []chunk{
{headers: []byte("headers"), payload: []byte("payload")},
{headers: []byte("more headers"), payload: []byte("more payload")},
},
expectedSignatures: map[int]string{
0: "681a7eaa82891536f24af7ec7e9219ee251ccd9bac2f1b981eab7c5ec8579115",
1: "07633d9d4ab4d81634a2164934d1f648c7cbc6839a8cf0773d818127a267e4d6",
},
},
"signature calculation errors": {
credentials: &periodicBadCredentials{credentials: staticCredentials},
chunks: []chunk{
{headers: []byte("headers"), payload: []byte("payload")},
{headers: []byte("headers"), payload: []byte("payload")},
{headers: []byte("more headers"), payload: []byte("more payload")},
{headers: []byte("more headers"), payload: []byte("more payload")},
},
expectedSignatures: map[int]string{
1: "681a7eaa82891536f24af7ec7e9219ee251ccd9bac2f1b981eab7c5ec8579115",
3: "07633d9d4ab4d81634a2164934d1f648c7cbc6839a8cf0773d818127a267e4d6",
},
expectedErrors: map[int]string{
0: "credentials error",
2: "credentials error",
},
},
}
for name, tt := range cases {
t.Run(name, func(t *testing.T) {
chunkSigner := &StreamSigner{
region: region,
service: service,
credentials: tt.credentials,
prevSig: mustDecodeHex(hex.DecodeString(seedSignature)),
}
for i, chunk := range tt.chunks {
var expectedError string
if len(tt.expectedErrors) != 0 {
_, ok := tt.expectedErrors[i]
if ok {
expectedError = tt.expectedErrors[i]
}
}
signature, err := chunkSigner.GetSignature(chunk.headers, chunk.payload, currentTime)
if err == nil && len(expectedError) > 0 {
t.Errorf("expected error, but got nil")
continue
} else if err != nil && len(expectedError) == 0 {
t.Errorf("expected no error, but got %v", err)
continue
} else if err != nil && len(expectedError) > 0 && !strings.Contains(err.Error(), expectedError) {
t.Errorf("expected %v, but got %v", expectedError, err)
continue
} else if len(expectedError) > 0 {
continue
}
expectedSignature, ok := tt.expectedSignatures[i]
if !ok {
t.Fatalf("expected signature not provided for test case")
}
if e, a := expectedSignature, hex.EncodeToString(signature); e != a {
t.Errorf("expected %v, got %v", e, a)
}
}
})
}
}
|
