5 files changed, 21 insertions, 33 deletions
diff --git a/spec/ruby/library/stringio/close_read_spec.rb b/spec/ruby/library/stringio/close_read_spec.rb
index 48630e0a7b..05d6c9f7d2 100644
--- a/spec/ruby/library/stringio/close_read_spec.rb
+++ b/spec/ruby/library/stringio/close_read_spec.rb
@@ -26,11 +26,6 @@ describe "StringIO#close_read" do
 
     io = StringIO.new("example")
     io.close_read
-    ruby_version_is ''...'2.3' do
-      lambda { io.close_read }.should raise_error(IOError)
-    end
-    ruby_version_is '2.3' do
-      io.close_read.should == nil
-    end
+    io.close_read.should == nil
   end
 end
diff --git a/spec/ruby/library/stringio/close_spec.rb b/spec/ruby/library/stringio/close_spec.rb
index 592dfdf526..a5a931aff1 100644
--- a/spec/ruby/library/stringio/close_spec.rb
+++ b/spec/ruby/library/stringio/close_spec.rb
@@ -16,17 +16,8 @@ describe "StringIO#close" do
     lambda { @io.write('x') }.should raise_error(IOError)
   end
 
-  ruby_version_is ''...'2.3' do
-    it "raises an IOError when self was already closed" do
-      @io.close
-      lambda { @io.close }.should raise_error(IOError)
-    end
-  end
-
-  ruby_version_is "2.3" do
-    it "does not raise anything when self was already closed" do
-      @io.close
-      lambda { @io.close }.should_not raise_error(IOError)
-    end
+  it "does not raise anything when self was already closed" do
+    @io.close
+    lambda { @io.close }.should_not raise_error(IOError)
   end
 end
diff --git a/spec/ruby/library/stringio/close_write_spec.rb b/spec/ruby/library/stringio/close_write_spec.rb
index f6292a9253..8a7ac12581 100644
--- a/spec/ruby/library/stringio/close_write_spec.rb
+++ b/spec/ruby/library/stringio/close_write_spec.rb
@@ -26,11 +26,6 @@ describe "StringIO#close_write" do
 
     io = StringIO.new("example")
     io.close_write
-    ruby_version_is ''...'2.3' do
-      lambda { io.close_write }.should raise_error(IOError)
-    end
-    ruby_version_is '2.3' do
-      io.close_write.should == nil
-    end
+    io.close_write.should == nil
   end
 end
diff --git a/spec/ruby/library/stringio/external_encoding_spec.rb b/spec/ruby/library/stringio/external_encoding_spec.rb
index 1a57081287..9c3d4041e5 100644
--- a/spec/ruby/library/stringio/external_encoding_spec.rb
+++ b/spec/ruby/library/stringio/external_encoding_spec.rb
@@ -8,14 +8,12 @@ describe "StringIO#external_encoding" do
     io.external_encoding.should == Encoding::EUC_JP
   end
 
-  ruby_version_is "2.3" do
-    it "does not set the encoding of its buffer string if the string is frozen" do
-      str = "foo".freeze
-      enc = str.encoding
-      io = StringIO.new(str)
-      io.set_encoding Encoding::EUC_JP
-      io.external_encoding.should == Encoding::EUC_JP
-      str.encoding.should == enc
-    end
+  it "does not set the encoding of its buffer string if the string is frozen" do
+    str = "foo".freeze
+    enc = str.encoding
+    io = StringIO.new(str)
+    io.set_encoding Encoding::EUC_JP
+    io.external_encoding.should == Encoding::EUC_JP
+    str.encoding.should == enc
   end
 end
diff --git a/spec/ruby/library/stringio/read_nonblock_spec.rb b/spec/ruby/library/stringio/read_nonblock_spec.rb
index 88728fcc18..7a79eef3c5 100644
--- a/spec/ruby/library/stringio/read_nonblock_spec.rb
+++ b/spec/ruby/library/stringio/read_nonblock_spec.rb
@@ -18,3 +18,12 @@ end
 describe "StringIO#read_nonblock when passed length" do
   it_behaves_like :stringio_sysread_length, :read_nonblock
 end
+
+describe "StringIO#read_nonblock" do
+
+  it "accepts an exception option" do
+    stringio = StringIO.new('foo')
+    stringio.read_nonblock(3, exception: false).should == 'foo'
+  end
+
+end