s3: add IBM IAM signer - fixes #7617

backend/s3/ibm_signer_test.go

@@ -0,0 +1,47 @@
+package s3
+
+import (
+	"context"
+	"net/http"
+	"testing"
+	"time"
+
+	"github.com/aws/aws-sdk-go-v2/aws"
+	"github.com/stretchr/testify/assert"
+)
+
+type MockAuthenticator struct {
+	Token string
+	Error error
+}
+
+func (m *MockAuthenticator) GetToken() (string, error) {
+	return m.Token, m.Error
+}
+
+func TestSignHTTP(t *testing.T) {
+	apiKey := "mock-api-key"
+	instanceID := "mock-instance-id"
+	token := "mock-iam-token"
+	mockAuth := &MockAuthenticator{
+		Token: token,
+		Error: nil,
+	}
+	signer := &IbmIamSigner{
+		APIKey:     apiKey,
+		InstanceID: instanceID,
+		Auth:       mockAuth,
+	}
+	req, err := http.NewRequest("GET", "https://example.com", nil)
+	if err != nil {
+		t.Fatalf("Failed to create HTTP request: %v", err)
+	}
+	credentials := aws.Credentials{
+		AccessKeyID:     "mock-access-key",
+		SecretAccessKey: "mock-secret-key",
+	}
+	err = signer.SignHTTP(context.TODO(), credentials, req, "payload-hash", "service", "region", time.Now())
+	assert.NoError(t, err, "Expected no error")
+	assert.Equal(t, "Bearer "+token, req.Header.Get("Authorization"), "Authorization header should be set correctly")
+	assert.Equal(t, instanceID, req.Header.Get("ibm-service-instance-id"), "ibm-service-instance-id header should be set correctly")
+}