1 files changed, 36 insertions, 38 deletions
diff --git a/spec/ruby/core/encoding/converter/convert_spec.rb b/spec/ruby/core/encoding/converter/convert_spec.rb
index 588d659ceb..c95e88a491 100644
--- a/spec/ruby/core/encoding/converter/convert_spec.rb
+++ b/spec/ruby/core/encoding/converter/convert_spec.rb
@@ -1,47 +1,45 @@
-# -*- encoding: binary -*-
-require File.expand_path('../../../../spec_helper', __FILE__)
+# encoding: binary
+# frozen_string_literal: true
+require_relative '../../../spec_helper'
 
-with_feature :encoding do
-  describe "Encoding::Converter#convert" do
-    it "returns a String" do
-      ec = Encoding::Converter.new('ascii', 'utf-8')
-      ec.convert('glark').should be_an_instance_of(String)
-    end
+describe "Encoding::Converter#convert" do
+  it "returns a String" do
+    ec = Encoding::Converter.new('ascii', 'utf-8')
+    ec.convert('glark').should.instance_of?(String)
+  end
 
-    it "sets the encoding of the result to the target encoding" do
-      ec = Encoding::Converter.new('ascii', 'utf-8')
-      str = 'glark'.force_encoding('ascii')
-      ec.convert(str).encoding.should == Encoding::UTF_8
-    end
+  it "sets the encoding of the result to the target encoding" do
+    ec = Encoding::Converter.new('ascii', 'utf-8')
+    str = 'glark'.dup.force_encoding('ascii')
+    ec.convert(str).encoding.should == Encoding::UTF_8
+  end
 
-    it "transcodes the given String to the target encoding" do
-      ec = Encoding::Converter.new("utf-8", "euc-jp")
-      ec.convert("\u3042".force_encoding('UTF-8')).should == \
-        "\xA4\xA2".force_encoding('EUC-JP')
-    end
+  it "transcodes the given String to the target encoding" do
+    ec = Encoding::Converter.new("utf-8", "euc-jp")
+    ec.convert("\u3042".dup.force_encoding('UTF-8')).should == \
+      "\xA4\xA2".dup.force_encoding('EUC-JP')
+  end
 
-    it "allows Strings of different encodings to the source encoding" do
-      ec = Encoding::Converter.new('ascii', 'utf-8')
-      str = 'glark'.force_encoding('SJIS')
-      ec.convert(str).encoding.should == Encoding::UTF_8
-    end
+  it "allows Strings of different encodings to the source encoding" do
+    ec = Encoding::Converter.new('ascii', 'utf-8')
+    str = 'glark'.dup.force_encoding('SJIS')
+    ec.convert(str).encoding.should == Encoding::UTF_8
+  end
 
-    it "reuses the given encoding pair if called multiple times" do
-      ec = Encoding::Converter.new('ascii', 'SJIS')
-      ec.convert('a'.force_encoding('ASCII')).should == 'a'.force_encoding('SJIS')
-      ec.convert('b'.force_encoding('ASCII')).should == 'b'.force_encoding('SJIS')
-    end
+  it "reuses the given encoding pair if called multiple times" do
+    ec = Encoding::Converter.new('ascii', 'SJIS')
+    ec.convert('a'.dup.force_encoding('ASCII')).should == 'a'.dup.force_encoding('SJIS')
+    ec.convert('b'.dup.force_encoding('ASCII')).should == 'b'.dup.force_encoding('SJIS')
+  end
 
-    it "raises UndefinedConversionError if the String contains characters invalid for the target encoding" do
-      ec = Encoding::Converter.new('UTF-8', Encoding.find('macCyrillic'))
-      lambda { ec.convert("\u{6543}".force_encoding('UTF-8')) }.should \
-        raise_error(Encoding::UndefinedConversionError)
-    end
+  it "raises UndefinedConversionError if the String contains characters invalid for the target encoding" do
+    ec = Encoding::Converter.new('UTF-8', Encoding.find('macCyrillic'))
+    -> { ec.convert("\u{6543}".dup.force_encoding('UTF-8')) }.should.raise(Encoding::UndefinedConversionError)
+  end
 
-    it "raises an ArgumentError if called on a finished stream" do
-      ec = Encoding::Converter.new('UTF-8', Encoding.find('macCyrillic'))
-      ec.finish
-      lambda { ec.convert("\u{65}") }.should raise_error(ArgumentError)
-    end
+  it "raises an ArgumentError if called on a finished stream" do
+    ec = Encoding::Converter.new('UTF-8', Encoding.find('macCyrillic'))
+    ec.finish
+    -> { ec.convert("\u{65}") }.should.raise(ArgumentError)
   end
 end