Merge pull request #453 from vyasgun/pr/upload-download-tests

Upload and Download tests against vfkit

test-vfkit/basic_test.go

@@ -3,8 +3,19 @@
 package e2evfkit
 
 import (
+	"crypto/sha256"
+	"encoding/hex"
+	"fmt"
+	"io"
+	"math"
+	"os"
+	"path"
+	"path/filepath"
+	"strings"
+
 	e2e "github.com/containers/gvisor-tap-vsock/test"
 	"github.com/onsi/ginkgo"
+	"github.com/onsi/gomega"
 )
 
 var _ = ginkgo.Describe("connectivity with vfkit", func() {
@@ -19,3 +30,68 @@ var _ = ginkgo.Describe("dns with vfkit", func() {
 		Sock:    sock,
 	})
 })
+
+var _ = ginkgo.Describe("upload and download with vfkit", func() {
+	tmpDir, err := os.MkdirTemp("", "vfkit")
+	gomega.Expect(err).NotTo(gomega.HaveOccurred())
+
+	sumMap := make(map[string]string)
+	dstDir := "/tmp"
+	ginkgo.AfterEach(func() {
+		err := os.RemoveAll(tmpDir)
+		gomega.Expect(err).NotTo(gomega.HaveOccurred())
+	})
+	ginkgo.It("should upload 1MB, 10MB, and 100MB files to vfkit", func() {
+		for _, size := range []int{6, 7, 8} {
+			file, err := os.CreateTemp(tmpDir, "testfile")
+			gomega.Expect(err).NotTo(gomega.HaveOccurred())
+
+			err = file.Truncate(int64(math.Pow10(size)))
+			gomega.Expect(err).NotTo(gomega.HaveOccurred())
+
+			hasher := sha256.New()
+			_, err = io.Copy(hasher, file)
+			gomega.Expect(err).NotTo(gomega.HaveOccurred())
+
+			srcPath := file.Name()
+			dstPath := filepath.Join(dstDir, path.Base(srcPath))
+
+			err = scpToVM(srcPath, dstDir)
+			gomega.Expect(err).NotTo(gomega.HaveOccurred())
+
+			out, err := sshExec(fmt.Sprintf("sha256sum %s | awk '{print $1}'", dstPath))
+			gomega.Expect(err).NotTo(gomega.HaveOccurred())
+
+			localSum := hex.EncodeToString(hasher.Sum(nil))
+			vmSum := strings.TrimSpace(string(out))
+			gomega.Expect(vmSum).To(gomega.Equal(localSum))
+
+			sumMap[dstPath] = vmSum
+		}
+	})
+	ginkgo.It("should download the uploaded files from vfkit", func() {
+		// Download the uploaded files
+		dlTmpDir, err := os.MkdirTemp("", "vfkit-dl")
+		gomega.Expect(err).NotTo(gomega.HaveOccurred())
+		for filename := range sumMap {
+			err = scpFromVM(filename, dlTmpDir)
+			gomega.Expect(err).NotTo(gomega.HaveOccurred())
+		}
+
+		dir, err := os.ReadDir(dlTmpDir)
+		gomega.Expect(err).NotTo(gomega.HaveOccurred())
+		for _, entry := range dir {
+			hasher := sha256.New()
+			file, err := os.Open(filepath.Join(dlTmpDir, entry.Name()))
+			gomega.Expect(err).NotTo(gomega.HaveOccurred())
+
+			_, err = io.Copy(hasher, file)
+			gomega.Expect(err).NotTo(gomega.HaveOccurred())
+
+			gomega.Expect(hasher.Sum(nil)).NotTo(gomega.Equal(sumMap[entry.Name()]))
+
+		}
+		// Set tmpDir to dlTmpDir for cleanup in AfterEach
+		tmpDir = dlTmpDir
+	})
+})

test-vfkit/vfkit_suite_test.go

@@ -218,6 +218,26 @@ func clear() {
 	_ = os.Remove(socketPath)
 }
 
+func scp(src, dst string) error {
+	sshCmd := exec.Command("/usr/bin/scp",
+		"-o", "UserKnownHostsFile=/dev/null",
+		"-o", "StrictHostKeyChecking=no",
+		"-o", "IdentitiesOnly=yes",
+		"-i", privateKeyFile,
+		"-P", strconv.Itoa(sshPort),
+		src, dst) // #nosec G204
+	sshCmd.Stderr = os.Stderr
+	sshCmd.Stdout = os.Stdout
+	return sshCmd.Run()
+}
+func scpToVM(src, dst string) error {
+	return scp(src, fmt.Sprintf("%s@127.0.0.1:%s", ignitionUser, dst))
+}
+
+func scpFromVM(src, dst string) error {
+	return scp(fmt.Sprintf("%s@127.0.0.1:%s", ignitionUser, src), dst)
+}
+
 var _ = ginkgo.AfterSuite(func() {
 	if host != nil {
 		if err := host.Process.Kill(); err != nil {