Cherrypick 9f8d3d0 from ruby/spec

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60943 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

spec/ruby/core/module/alias_method_spec.rb

@@ -69,8 +69,15 @@ describe "Module#alias_method" do
     lambda { @class.make_alias mock('x'), :public_one }.should raise_error(TypeError)
   end
 
-  it "is a private method" do
-    lambda { @class.alias_method :ichi, :public_one }.should raise_error(NoMethodError)
+  ruby_version_is ''...'2.5' do
+    it "is a private method" do
+      lambda { @class.alias_method :ichi, :public_one }.should raise_error(NoMethodError)
+    end
+  end
+  ruby_version_is '2.5' do
+    it "is a public method" do
+      Module.should have_public_instance_method(:alias_method, false)
+    end
   end
 
   it "returns self" do

spec/ruby/core/module/attr_accessor_spec.rb

@@ -63,8 +63,15 @@ describe "Module#attr_accessor" do
     lambda { c.new.foo=1 }.should raise_error(NoMethodError)
   end
 
-  it "is a private method" do
-    lambda { Class.new.attr_accessor(:foo) }.should raise_error(NoMethodError)
+  ruby_version_is ''...'2.5' do
+    it "is a private method" do
+      Module.should have_private_instance_method(:attr_accessor, false)
+    end
+  end
+  ruby_version_is '2.5' do
+    it "is a public method" do
+      Module.should have_public_instance_method(:attr_accessor, false)
+    end
   end
 
   describe "on immediates" do

spec/ruby/core/module/attr_reader_spec.rb

@@ -58,7 +58,14 @@ describe "Module#attr_reader" do
     lambda { c.new.foo }.should raise_error(NoMethodError)
   end
 
-  it "is a private method" do
-    lambda { Class.new.attr_reader(:foo) }.should raise_error(NoMethodError)
+  ruby_version_is ''...'2.5' do
+    it "is a private method" do
+      Module.should have_private_instance_method(:attr_reader, false)
+    end
+  end
+  ruby_version_is '2.5' do
+    it "is a public method" do
+      Module.should have_public_instance_method(:attr_reader, false)
+    end
   end
 end

spec/ruby/core/module/attr_spec.rb

@@ -143,7 +143,14 @@ describe "Module#attr" do
     }.should complain(/boolean argument is obsoleted/)
   end
 
-  it "is a private method" do
-    lambda { Class.new.attr(:foo) }.should raise_error(NoMethodError)
+  ruby_version_is ''...'2.5' do
+    it "is a private method" do
+      Module.should have_private_instance_method(:attr, false)
+    end
+  end
+  ruby_version_is '2.5' do
+    it "is a public method" do
+      Module.should have_public_instance_method(:attr, false)
+    end
   end
 end

spec/ruby/core/module/attr_writer_spec.rb

@@ -58,7 +58,14 @@ describe "Module#attr_writer" do
     lambda { c.new.foo=1 }.should raise_error(NoMethodError)
   end
 
-  it "is a private method" do
-    lambda { Class.new.attr_writer(:foo) }.should raise_error(NoMethodError)
+  ruby_version_is ''...'2.5' do
+    it "is a private method" do
+      Module.should have_private_instance_method(:attr_writer, false)
+    end
+  end
+  ruby_version_is '2.5' do
+    it "is a public method" do
+      Module.should have_public_instance_method(:attr_writer, false)
+    end
   end
 end

spec/ruby/core/module/define_method_spec.rb

@@ -357,8 +357,15 @@ describe "Module#define_method" do
     klass.new.string_test.should == "string_test result"
   end
 
-  it "is private" do
-    Module.should have_private_instance_method(:define_method)
+  ruby_version_is ''...'2.5' do
+    it "is a private method" do
+      Module.should have_private_instance_method(:define_method)
+    end
+  end
+  ruby_version_is '2.5' do
+    it "is a public method" do
+      Module.should have_public_instance_method(:define_method)
+    end
   end
 
   it "returns its symbol" do

spec/ruby/core/module/remove_method_spec.rb

@@ -20,8 +20,15 @@ describe "Module#remove_method" do
     @module = Module.new { def method_to_remove; end }
   end
 
-  it "is a private method" do
-    Module.should have_private_instance_method(:remove_method, false)
+  ruby_version_is ''...'2.5' do
+    it "is a private method" do
+      Module.should have_private_instance_method(:remove_method, false)
+    end
+  end
+  ruby_version_is '2.5' do
+    it "is a public method" do
+      Module.should have_public_instance_method(:remove_method, false)
+    end
   end
 
   it "removes the method from a class" do

spec/ruby/core/module/undef_method_spec.rb

@@ -18,8 +18,15 @@ describe "Module#undef_method" do
     @module = Module.new { def method_to_undef; end }
   end
 
-  it "is a private method" do
-    Module.should have_private_instance_method(:undef_method, false)
+  ruby_version_is ''...'2.5' do
+    it "is a private method" do
+      Module.should have_private_instance_method(:undef_method, false)
+    end
+  end
+  ruby_version_is '2.5' do
+    it "is a public method" do
+      Module.should have_public_instance_method(:undef_method, false)
+    end
   end
 
   it "requires multiple arguments" do