Add saveCacheV2 tests

packages/cache/src/cache.ts

@@ -328,10 +328,10 @@ export async function saveCache(
   options?: UploadOptions,
   enableCrossOsArchive = false
 ): Promise<number> {
+  const cacheServiceVersion: string = getCacheServiceVersion()
+  core.debug(`Cache service version: ${cacheServiceVersion}`)
   checkPaths(paths)
   checkKey(key)
-
-  const cacheServiceVersion: string = getCacheServiceVersion()
   switch (cacheServiceVersion) {
     case 'v2':
       return await saveCacheV2(paths, key, options, enableCrossOsArchive)

packages/cache/src/internal/blob/upload-cache.ts

@@ -1,6 +1,7 @@
 import * as core from '@actions/core'
 import {
   BlobClient,
+  BlobUploadCommonResponse,
   BlockBlobClient,
   BlockBlobParallelUploadOptions
 } from '@azure/storage-blob'
@@ -8,7 +9,7 @@ import {
 export async function uploadCacheFile(
   signedUploadURL: string,
   archivePath: string
-): Promise<{}> {
+): Promise<BlobUploadCommonResponse> {
   // Specify data transfer options
   const uploadOptions: BlockBlobParallelUploadOptions = {
     blockSize: 4 * 1024 * 1024, // 4 MiB max block size