make test flexible instead of forcing auth version in dev

Author: bshaffer

composer.json

@@ -16,7 +16,6 @@
         "guzzlehttp/psr7": "^2.6"
     },
     "require-dev": {
-        "google/auth": "^1.41.0",
         "squizlabs/php_codesniffer": "^3.8",
         "symfony/dom-crawler": "~2.1",
         "symfony/css-selector": "~2.1",

tests/Google/ClientTest.php

@@ -715,8 +715,9 @@ public function testOnGceCacheAndCacheOptions()
             ->shouldBeCalledTimes(1)
             ->willReturn($mockCacheItem->reveal());
         // cache key from GCECredentials::getTokenUri() . 'universe_domain'
-        $mockCache->getItem('cc685e3a0717258b6a4cefcb020e96de6bcf904e76fd9fc1647669f42deff9bf')
-            ->shouldBeCalledTimes(1)
+        $mockCache->getItem('cc685e3a0717258b6a4cefcb020e96de6bcf904e76fd9fc1647669f42deff9bf') // google/auth < 1.41.0
+            ->willReturn($mockUniverseDomainCacheItem->reveal());
+        $mockCache->getItem(GCECredentials::cacheKey . 'universe_domain') // google/auth >= 1.41.0
             ->willReturn($mockUniverseDomainCacheItem->reveal());
 
         $client = new Client(['cache_config' => $cacheConfig]);