attr_reader, attr_writer, attr_accessor and attr methods returns array of symbols (#3935)

Co-authored-by: Yusuke Endoh <mame@ruby-lang.org>

4 files changed, 26 insertions, 0 deletions

diff --git a/spec/ruby/core/module/attr_accessor_spec.rb b/spec/ruby/core/module/attr_accessor_spec.rb
index 6a749341be..c4133d8e4e 100644
--- a/spec/ruby/core/module/attr_accessor_spec.rb
+++ b/spec/ruby/core/module/attr_accessor_spec.rb
@@ -67,6 +67,12 @@ describe "Module#attr_accessor" do
     Module.should have_public_instance_method(:attr_accessor, false)
   end
 
+  it "returns an array of defined methods names as symbols" do
+    Class.new do
+      (attr_accessor :foo, 'bar').should == [:foo, :foo=, :bar, :bar=]
+    end
+  end
+
   describe "on immediates" do
     before :each do
       class Fixnum
diff --git a/spec/ruby/core/module/attr_reader_spec.rb b/spec/ruby/core/module/attr_reader_spec.rb
index 238e3db9ea..0693909123 100644
--- a/spec/ruby/core/module/attr_reader_spec.rb
+++ b/spec/ruby/core/module/attr_reader_spec.rb
@@ -61,4 +61,10 @@ describe "Module#attr_reader" do
   it "is a public method" do
     Module.should have_public_instance_method(:attr_reader, false)
   end
+
+  it "returns an array of defined methods names as symbols" do
+    Class.new do
+      (attr_reader :foo, 'bar').should == [:foo, :bar]
+    end
+  end
 end
diff --git a/spec/ruby/core/module/attr_spec.rb b/spec/ruby/core/module/attr_spec.rb
index 8b91e77658..8c7d27e1e3 100644
--- a/spec/ruby/core/module/attr_spec.rb
+++ b/spec/ruby/core/module/attr_spec.rb
@@ -145,4 +145,12 @@ describe "Module#attr" do
   it "is a public method" do
     Module.should have_public_instance_method(:attr, false)
   end
+
+  it "returns an array of defined methods names as symbols" do
+    Class.new do
+      (attr :foo, 'bar').should == [:foo, :bar]
+      (attr :baz, false).should == [:baz]
+      (attr :qux, true).should == [:qux, :qux=]
+    end
+  end
 end
diff --git a/spec/ruby/core/module/attr_writer_spec.rb b/spec/ruby/core/module/attr_writer_spec.rb
index e4b193a9d8..c5a00b8233 100644
--- a/spec/ruby/core/module/attr_writer_spec.rb
+++ b/spec/ruby/core/module/attr_writer_spec.rb
@@ -61,4 +61,10 @@ describe "Module#attr_writer" do
   it "is a public method" do
     Module.should have_public_instance_method(:attr_writer, false)
   end
+
+  it "returns an array of defined methods names as symbols" do
+    Class.new do
+      (attr_writer :foo, 'bar').should == [:foo=, :bar=]
+    end
+  end
 end