1 files changed, 15 insertions, 15 deletions
diff --git a/spec/ruby/core/process/daemon_spec.rb b/spec/ruby/core/process/daemon_spec.rb
index f68ddfe253..7198dfa6ee 100644
--- a/spec/ruby/core/process/daemon_spec.rb
+++ b/spec/ruby/core/process/daemon_spec.rb
@@ -1,7 +1,11 @@
-require File.expand_path('../../../spec_helper', __FILE__)
-require File.expand_path('../fixtures/common', __FILE__)
-
-platform_is_not :windows do
+require_relative '../../spec_helper'
+require_relative 'fixtures/common'
+
+guard -> {
+  Process.respond_to?(:fork) and
+    # macOS 15 is not working for these examples
+    !(/darwin/ =~ RUBY_PLATFORM && /15/ =~ `sw_vers -productVersion`)
+} do
   describe :process_daemon_keep_stdio_open_false, shared: true do
     it "redirects stdout to /dev/null" do
       @daemon.invoke("keep_stdio_open_false_stdout", @object).should == ""
@@ -86,10 +90,6 @@ platform_is_not :windows do
       @daemon.invoke("stay_in_dir", [true]).should == @invoke_dir
     end
 
-    it "does not change to the root directory if the first argument is non-false" do
-      @daemon.invoke("stay_in_dir", [:yes]).should == @invoke_dir
-    end
-
     describe "when the second argument is not given" do
       it_behaves_like :process_daemon_keep_stdio_open_false, nil, [false]
     end
@@ -105,19 +105,19 @@ platform_is_not :windows do
     describe "when the second argument is true" do
       it_behaves_like :process_daemon_keep_stdio_open_true, nil, [false, true]
     end
-
-    describe "when the second argument is non-false" do
-      it_behaves_like :process_daemon_keep_stdio_open_true, nil, [false, :yes]
-    end
   end
 end
 
-platform_is :windows do
+guard_not -> { Process.respond_to?(:fork) } do
   describe "Process.daemon" do
+    it "returns false from #respond_to?" do
+      Process.respond_to?(:daemon).should == false
+    end
+
     it "raises a NotImplementedError" do
-      lambda {
+      -> {
         Process.daemon
-      }.should raise_error(NotImplementedError)
+      }.should.raise(NotImplementedError)
     end
   end
 end