Allow override of KMS keys in storage acceptance tests (#2528)

* Allow override of KMS keys in storage acceptance tests
* Use current project instead of hard-coding the project ID

Author: dazuma

google-cloud-storage/acceptance/storage/bucket_encryption_test.rb

@@ -17,8 +17,14 @@
 describe Google::Cloud::Storage::Bucket, :encryption, :storage do
   let(:bucket_name) { "#{$bucket_names[1]}-encryption" }
   let(:bucket_location) { "us-central1" }
-  let(:kms_key) { "projects/helical-zone-771/locations/#{bucket_location}/keyRings/ruby-test/cryptoKeys/ruby-test-key-1" }
-  let(:kms_key_2) { "projects/helical-zone-771/locations/#{bucket_location}/keyRings/ruby-test/cryptoKeys/ruby-test-key-2" }
+  let(:kms_key) {
+    ENV["GCLOUD_TEST_STORAGE_KMS_KEY_1"] ||
+      "projects/#{storage.project_id}/locations/#{bucket_location}/keyRings/ruby-test/cryptoKeys/ruby-test-key-1"
+  }
+  let(:kms_key_2) {
+    ENV["GCLOUD_TEST_STORAGE_KMS_KEY_2"] ||
+      "projects/#{storage.project_id}/locations/#{bucket_location}/keyRings/ruby-test/cryptoKeys/ruby-test-key-2"
+  }
   let :bucket do
     b = safe_gcs_execute { storage.create_bucket(bucket_name, location: bucket_location) }
     b.default_kms_key = kms_key

google-cloud-storage/acceptance/storage/file_encryption_test.rb

@@ -159,8 +159,14 @@
   end
 
   describe "KMS customer-managed encryption key (CMEK)" do
-    let(:kms_key) { "projects/helical-zone-771/locations/#{bucket_location}/keyRings/ruby-test/cryptoKeys/ruby-test-key-1" }
-    let(:kms_key_2) { "projects/helical-zone-771/locations/#{bucket_location}/keyRings/ruby-test/cryptoKeys/ruby-test-key-2" }
+    let(:kms_key) {
+      ENV["GCLOUD_TEST_STORAGE_KMS_KEY_1"] ||
+        "projects/#{storage.project_id}/locations/#{bucket_location}/keyRings/ruby-test/cryptoKeys/ruby-test-key-1"
+    }
+    let(:kms_key_2) {
+      ENV["GCLOUD_TEST_STORAGE_KMS_KEY_2"] ||
+        "projects/#{storage.project_id}/locations/#{bucket_location}/keyRings/ruby-test/cryptoKeys/ruby-test-key-2"
+    }
 
     it "should upload and download a file with default_kms_key" do
       bucket.default_kms_key = kms_key