config: dynamic attestation configuration through S3 backed API (#1808)

internal/api/fetcher/configapi_test.go

@@ -0,0 +1,65 @@
+/*
+Copyright (c) Edgeless Systems GmbH
+
+SPDX-License-Identifier: AGPL-3.0-only
+*/
+package fetcher
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"errors"
+	"io"
+	"net/http"
+	"testing"
+
+	"github.com/edgelesssys/constellation/v2/internal/api/configapi"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetVersion(t *testing.T) {
+	client := &http.Client{
+		Transport: &fakeConfigAPIHandler{},
+	}
+	fetcher := NewConfigAPIFetcherWithClient(client)
+	res, err := fetcher.FetchLatestAzureSEVSNPVersion(context.Background())
+	require.NoError(t, err)
+	assert.Equal(t, uint8(2), res.Bootloader)
+}
+
+type fakeConfigAPIHandler struct{}
+
+// RoundTrip resolves the request and returns a dummy response.
+func (f *fakeConfigAPIHandler) RoundTrip(req *http.Request) (*http.Response, error) {
+	if req.URL.Path == "/constellation/v1/attestation/azure-sev-snp/list" {
+		res := &http.Response{}
+		data := []string{"2021-01-01-01-01.json"}
+		bt, err := json.Marshal(data)
+		if err != nil {
+			return nil, err
+		}
+		res.Body = io.NopCloser(bytes.NewReader(bt))
+		res.Header = http.Header{}
+		res.Header.Set("Content-Type", "application/json")
+		res.StatusCode = http.StatusOK
+		return res, nil
+	} else if req.URL.Path == "/constellation/v1/attestation/azure-sev-snp/2021-01-01-01-01.json" {
+		res := &http.Response{}
+		bt, err := json.Marshal(configapi.AzureSEVSNPVersion{
+			Microcode:  93,
+			TEE:        0,
+			SNP:        6,
+			Bootloader: 2,
+		})
+		if err != nil {
+			return nil, err
+		}
+		res.Body = io.NopCloser(bytes.NewReader(bt))
+		res.StatusCode = http.StatusOK
+		return res, nil
+
+	}
+	return nil, errors.New("no endpoint found")
+}