enhance k8 copyto copyfrom test

Signed-off-by: Jeromy Cannon <[email protected]>

Author: jeromy-cannon

test/e2e/core/k8_e2e.test.mjs

@@ -14,7 +14,6 @@
  * limitations under the License.
  *
  */
-import { afterAll, beforeAll, describe, expect, it } from '@jest/globals'
 import fs from 'fs'
 import net from 'net'
 import os from 'os'
@@ -38,6 +37,7 @@ import {
   V1ServiceSpec,
   V1VolumeResourceRequirements
 } from '@kubernetes/client-node'
+import crypto from 'crypto'
 
 const defaultTimeout = 120000
 
@@ -179,14 +179,21 @@ describe('K8', () => {
     const localTmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'k8-test'))
     const remoteTmpDir = '/tmp'
     const localFilePath = 'test/data/pem/keys/a-private-node0.pem'
+    const fileName = path.basename(localFilePath)
     const remoteFilePath = `${remoteTmpDir}/a-private-node0.pem`
+    const originalFileHash = crypto.createHash('sha384').update(localFilePath).digest().toString()
+    const originalStat = fs.statSync(localFilePath)
 
     // upload the file
     await expect(k8.copyTo(podName, containerName, localFilePath, remoteTmpDir)).resolves.toBeTruthy()
 
     // download the same file
     await expect(k8.copyFrom(podName, containerName, remoteFilePath, localTmpDir)).resolves.toBeTruthy()
+    const downloadedFilePath = path.join(localTmpDir, fileName)
+    const downloadedFileHash = crypto.createHash('sha384').update(downloadedFilePath).digest().toString()
+    const downloadedStat = fs.statSync(downloadedFilePath)
 
+    expect(downloadedFileHash, 'downloaded file hash should match original file hash').toEqual(originalFileHash)
     // rm file inside the container
     await expect(k8.execContainer(podName, containerName, ['rm', '-f', remoteFilePath])).resolves