1 files changed, 37 insertions, 0 deletions
diff --git a/spec/ruby/core/string/bytesize_spec.rb b/spec/ruby/core/string/bytesize_spec.rb
new file mode 100644
index 0000000000..51da179da8
--- /dev/null
+++ b/spec/ruby/core/string/bytesize_spec.rb
@@ -0,0 +1,37 @@
+# -*- encoding: utf-8 -*-
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../fixtures/classes.rb', __FILE__)
+
+with_feature :encoding do
+  describe "#String#bytesize" do
+    it "needs to be reviewed for spec completeness"
+
+    it "returns the length of self in bytes" do
+      "hello".bytesize.should == 5
+      " ".bytesize.should == 1
+    end
+
+    it "works with strings containing single UTF-8 characters" do
+      "\u{6666}".bytesize.should == 3
+    end
+
+    it "works with pseudo-ASCII strings containing single UTF-8 characters" do
+      "\u{6666}".force_encoding('ASCII').bytesize.should == 3
+    end
+
+    it "works with strings containing UTF-8 characters" do
+      "c \u{6666}".force_encoding('UTF-8').bytesize.should == 5
+      "c \u{6666}".bytesize.should == 5
+    end
+
+    it "works with pseudo-ASCII strings containing UTF-8 characters" do
+      "c \u{6666}".force_encoding('ASCII').bytesize.should == 5
+    end
+
+    it "returns 0 for the empty string" do
+      "".bytesize.should == 0
+      "".force_encoding('ASCII').bytesize.should == 0
+      "".force_encoding('UTF-8').bytesize.should == 0
+    end
+  end
+end