test_integration_pumactl.rb - adjust test_phased_restart_cluster for Darwin

With an apparently busy Actions macOS runner, the whole test took 10.3 sec, restart took 6.8.  Normal runs take 3 sec or less.

Allow macOS test 3 more seconds to complete

test/helpers/integration.rb

@@ -8,6 +8,7 @@ require_relative 'tmp_path'
 # have their own files, use those instead
 class TestIntegration < Minitest::Test
   include TmpPath
+  DARWIN = !!RUBY_PLATFORM[/darwin/]
   HOST  = "127.0.0.1"
   TOKEN = "xxyyzz"
   WORKERS = 2

test/test_integration_cluster.rb

@@ -4,8 +4,6 @@ require_relative "helpers/integration"
 class TestIntegrationCluster < TestIntegration
   parallelize_me!
 
-  DARWIN = !!RUBY_PLATFORM[/darwin/]
-
   def setup
     skip NO_FORK_MSG unless HAS_FORK
     super

test/test_integration_pumactl.rb

@@ -87,7 +87,7 @@ class TestIntegrationPumactl < TestIntegration
 
     _, status = Process.wait2(@pid)
     assert_equal 0, status
-    assert_operator Time.now - start, :<, 5
+    assert_operator Time.now - start, :<, (DARWIN ? 8 : 5)
     @server = nil
   end