Do not run any Ractor specs on ruby-3.0

Shareable instance variables on modules are essential for most Ractor specs.
They were introduced in ruby-3.1.

2 files changed, 1 insertions, 5 deletions

diff --git a/spec/ffi/spec_helper.rb b/spec/ffi/spec_helper.rb
index 63f8b78..3d8a025 100644
--- a/spec/ffi/spec_helper.rb
+++ b/spec/ffi/spec_helper.rb
@@ -9,7 +9,7 @@ require 'objspace'
 
 RSpec.configure do |c|
   c.filter_run_excluding :broken => true
-  c.filter_run_excluding( :ractor ) unless defined?(Ractor)
+  c.filter_run_excluding( :ractor ) unless defined?(Ractor) && RUBY_VERSION >= "3.1"
 end
 
 module TestLibrary
diff --git a/spec/ffi/struct_spec.rb b/spec/ffi/struct_spec.rb
index 0429dd5..d09b7b6 100644
--- a/spec/ffi/struct_spec.rb
+++ b/spec/ffi/struct_spec.rb
@@ -467,8 +467,6 @@ module StructSpecsStructTests
     end
 
     it "Can use CallbackInfo struct field in Ractor", :ractor do
-      skip "sharing structs accross Ractors requires Ruby-3.1" if RUBY_VERSION < "3.1"
-
       res = Ractor.new do
         s = CallbackMember::TestStruct.new
         add_proc = lambda { |a, b| a + b }
@@ -562,8 +560,6 @@ module StructSpecsStructTests
     end
 
     it "should be usable with Ractor", :ractor do
-      skip "Using structs in Ractor requires Ruby-3.1" if RUBY_VERSION < "3.1"
-
       class TestStructRactor < FFI::Struct
         layout :i, :int
       end