Refactor storage tests for Kokoro (GoogleCloudPlatform#720)

Author: bshaffer

.kokoro/secrets.sh.enc

@@ -20,6 +20,7 @@ set -ex
 cd github/php-docs-samples
 
 export GOOGLE_APPLICATION_CREDENTIALS=$KOKORO_GFILE_DIR/service-account.json
+export PATH="$PATH:/opt/composer/vendor/bin:/root/google-cloud-sdk/bin"
 
 # export the secrets
 if [ -f ${GOOGLE_APPLICATION_CREDENTIALS} ]; then

.kokoro/system_tests.sh

@@ -52,8 +52,12 @@ function inspect_gcs(
     $maxFindings = 0
 ) {
     // Instantiate a client.
-    $dlp = new DlpServiceClient();
-    $pubsub = new PubSubClient();
+    $dlp = new DlpServiceClient([
+        'projectId' => $callingProjectId,
+    ]);
+    $pubsub = new PubSubClient([
+        'projectId' => $callingProjectId,
+    ]);
     $topic = $pubsub->topic($topicId);
 
     // The infoTypes of information to match

dlp/src/inspect_gcs.php

@@ -22,6 +22,7 @@
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\InputArgument;
 use Symfony\Component\Console\Input\InputOption;
+use InvalidArgumentException;
 
 $application = new Application();