fix minitest after run hook to handle failing tests

Author: aakashanandg

spannerlib/wrappers/spannerlib-ruby/spec/mock_server_runner.rb

@@ -24,12 +24,18 @@
 require_relative "mock_server/spanner_mock_server"
 
 <<<<<<< HEAD
+<<<<<<< HEAD
+=======
+>>>>>>> 04a62e7 (fix minitest after run hook to handle failing tests)
 Signal.trap("TERM") do
   exit!(0) # "exit skips cleanup hooks and prevents gRPC segfaults
 end
 
+<<<<<<< HEAD
 =======
 >>>>>>> a953c19 (chore(ruby): Add CI workflow to run mock server tests)
+=======
+>>>>>>> 04a62e7 (fix minitest after run hook to handle failing tests)
 begin
   server = GRPC::RpcServer.new
   port = server.add_http2_port "127.0.0.1:0", :this_port_is_insecure

spannerlib/wrappers/spannerlib-ruby/spec/spannerlib_ruby_spec.rb

@@ -31,6 +31,7 @@
 $server_pid = nil
 $server_port = nil
 $port_file = nil
+$any_failure = false
 
 Minitest.after_run do
   if $server_pid
@@ -42,10 +43,15 @@
     end
   end
   File.delete($port_file) if $port_file && File.exist?($port_file)
-  # The Go Runtime inside the DLL conflicts with Ruby's shutdown sequence on Windows,
-  # causing a crash after tests pass. Process.exit!(0) skips the cleanup hooks
-  # and exits immediately with success status.
-  Process.exit!(0)
+  if $any_failure
+    puts "Tests Failed! Exiting with code 1"
+    $stdout.flush
+    Process.exit!(1)
+  else
+    puts "Tests Passed! Exiting with code 0"
+    $stdout.flush
+    Process.exit!(0)
+  end
 end
 
 describe "Connection" do