1 files changed, 63 insertions, 66 deletions
diff --git a/spec/ruby/core/string/ascii_only_spec.rb b/spec/ruby/core/string/ascii_only_spec.rb
index 1bf9cfa4a1..9af663beb8 100644
--- a/spec/ruby/core/string/ascii_only_spec.rb
+++ b/spec/ruby/core/string/ascii_only_spec.rb
@@ -1,85 +1,82 @@
 # -*- encoding: utf-8 -*-
-require File.expand_path('../../../spec_helper', __FILE__)
-require File.expand_path('../fixtures/classes.rb', __FILE__)
+require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
 
-with_feature :encoding do
-  describe "String#ascii_only?" do
-    describe "with ASCII only characters" do
-      it "returns true if the encoding is UTF-8" do
-        [ ["hello",                         true],
-          ["hello".encode('UTF-8'),         true],
-          ["hello".force_encoding('UTF-8'), true],
-        ].should be_computed_by(:ascii_only?)
-      end
-
-      it "returns true if the encoding is US-ASCII" do
-        "hello".force_encoding(Encoding::US_ASCII).ascii_only?.should be_true
-        "hello".encode(Encoding::US_ASCII).ascii_only?.should be_true
-      end
-
-      it "returns true for all single-character UTF-8 Strings" do
-        0.upto(127) do |n|
-          n.chr.ascii_only?.should be_true
-        end
-      end
+describe "String#ascii_only?" do
+  describe "with ASCII only characters" do
+    it "returns true if the encoding is UTF-8" do
+      [ ["hello",                         true],
+        ["hello".encode('UTF-8'),         true],
+        ["hello".dup.force_encoding('UTF-8'), true],
+      ].should be_computed_by(:ascii_only?)
     end
 
-    describe "with non-ASCII only characters" do
-      it "returns false if the encoding is ASCII-8BIT" do
-        chr = 128.chr
-        chr.encoding.should == Encoding::ASCII_8BIT
-        chr.ascii_only?.should be_false
-      end
-
-      it "returns false if the String contains any non-ASCII characters" do
-        [ ["\u{6666}",                          false],
-          ["hello, \u{6666}",                   false],
-          ["\u{6666}".encode('UTF-8'),          false],
-          ["\u{6666}".force_encoding('UTF-8'),  false],
-        ].should be_computed_by(:ascii_only?)
-      end
+    it "returns true if the encoding is US-ASCII" do
+      "hello".dup.force_encoding(Encoding::US_ASCII).ascii_only?.should == true
+      "hello".encode(Encoding::US_ASCII).ascii_only?.should == true
+    end
 
-      it "returns false if the encoding is US-ASCII" do
-        [ ["\u{6666}".force_encoding(Encoding::US_ASCII),         false],
-          ["hello, \u{6666}".force_encoding(Encoding::US_ASCII),  false],
-        ].should be_computed_by(:ascii_only?)
+    it "returns true for all single-character UTF-8 Strings" do
+      0.upto(127) do |n|
+        n.chr.ascii_only?.should == true
       end
     end
+  end
 
-    it "returns true for the empty String with an ASCII-compatible encoding" do
-      "".ascii_only?.should be_true
-      "".encode('UTF-8').ascii_only?.should be_true
+  describe "with non-ASCII only characters" do
+    it "returns false if the encoding is BINARY" do
+      chr = 128.chr
+      chr.encoding.should == Encoding::BINARY
+      chr.ascii_only?.should == false
     end
 
-    it "returns false for the empty String with a non-ASCII-compatible encoding" do
-      "".force_encoding('UTF-16LE').ascii_only?.should be_false
-      "".encode('UTF-16BE').ascii_only?.should be_false
+    it "returns false if the String contains any non-ASCII characters" do
+      [ ["\u{6666}",                          false],
+        ["hello, \u{6666}",                   false],
+        ["\u{6666}".encode('UTF-8'),          false],
+        ["\u{6666}".dup.force_encoding('UTF-8'),  false],
+      ].should be_computed_by(:ascii_only?)
     end
 
-    it "returns false for a non-empty String with non-ASCII-compatible encoding" do
-      "\x78\x00".force_encoding("UTF-16LE").ascii_only?.should be_false
+    it "returns false if the encoding is US-ASCII" do
+      [ ["\u{6666}".dup.force_encoding(Encoding::US_ASCII),         false],
+        ["hello, \u{6666}".dup.force_encoding(Encoding::US_ASCII),  false],
+      ].should be_computed_by(:ascii_only?)
     end
+  end
 
-    it "returns false when interpolating non ascii strings" do
-      base = "EU currency is"
-      base.force_encoding(Encoding::US_ASCII)
-      euro = "\u20AC"
-      interp = "#{base} #{euro}"
-      euro.ascii_only?.should be_false
-      base.ascii_only?.should be_true
-      interp.ascii_only?.should be_false
-    end
+  it "returns true for the empty String with an ASCII-compatible encoding" do
+    "".ascii_only?.should == true
+    "".encode('UTF-8').ascii_only?.should == true
+  end
 
-    it "returns false after appending non ASCII characters to an empty String" do
-      ("" << "λ").ascii_only?.should be_false
-    end
+  it "returns false for the empty String with a non-ASCII-compatible encoding" do
+    "".dup.force_encoding('UTF-16LE').ascii_only?.should == false
+    "".encode('UTF-16BE').ascii_only?.should == false
+  end
 
-    it "returns false when concatenating an ASCII and non-ASCII String" do
-      "".concat("λ").ascii_only?.should be_false
-    end
+  it "returns false for a non-empty String with non-ASCII-compatible encoding" do
+    "\x78\x00".dup.force_encoding("UTF-16LE").ascii_only?.should == false
+  end
 
-    it "returns false when replacing an ASCII String with a non-ASCII String" do
-      "".replace("λ").ascii_only?.should be_false
-    end
+  it "returns false when interpolating non ascii strings" do
+    base = "EU currency is".dup.force_encoding(Encoding::US_ASCII)
+    euro = "\u20AC"
+    interp = "#{base} #{euro}"
+    euro.ascii_only?.should == false
+    base.ascii_only?.should == true
+    interp.ascii_only?.should == false
+  end
+
+  it "returns false after appending non ASCII characters to an empty String" do
+    ("".dup << "λ").ascii_only?.should == false
+  end
+
+  it "returns false when concatenating an ASCII and non-ASCII String" do
+    "".dup.concat("λ").ascii_only?.should == false
+  end
+
+  it "returns false when replacing an ASCII String with a non-ASCII String" do
+    "".dup.replace("λ").ascii_only?.should == false
   end
 end