Add pending tests for gcp auth

Author: iascan

lib/vault/api/auth.rb

@@ -251,14 +251,13 @@ def aws_iam(role, credentials_provider, iam_auth_header_value = nil, sts_endpoin
     #
     # @param [String] role
     # @param [String] jwt
-    #   jwt returned by the instance identity metadata
+    #   jwt returned by the instance identity metadata, or iam api
     # @param [String] path optional
     #   the path were the gcp auth backend is mounted
     #
     # @return [Secret]
     def gcp(role, jwt, path = 'gcp')
       payload = { role: role, jwt: jwt }
-      # Set a custom nonce if client is providing one
       json = client.post("/v1/auth/#{CGI.escape(path)}/login", JSON.fast_generate(payload))
       secret = Secret.decode(json)
       client.token = secret.auth.client_token

spec/integration/api/auth_spec.rb

@@ -272,7 +272,7 @@ module Vault
       end
 
       let!(:old_token) { subject.token }
-      
+
       let(:jwt) do
         "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyLCJwcm9qZWN0X2lkIjoicHJvamVjdF9pZCJ9.TmuiSHtbLMZuw_LOzKWQ2vnC7BUvu2b4CeBXdxCDCXQ"
       end
@@ -283,7 +283,7 @@ module Vault
 
       it "does not authenticate if project_id does not match" do
         pending "gcp auth requires real resources and keys"
-        
+
         expect do
           subject.auth.gcp("rspec_wrong_role", jwt)
         end.to raise_error(Vault::HTTPClientError, /project_id doesn't match/)