1 files changed, 47 insertions, 0 deletions
diff --git a/spec/ruby/core/encoding/converter/convert_spec.rb b/spec/ruby/core/encoding/converter/convert_spec.rb
new file mode 100644
index 0000000000..588d659ceb
--- /dev/null
+++ b/spec/ruby/core/encoding/converter/convert_spec.rb
@@ -0,0 +1,47 @@
+# -*- encoding: binary -*-
+require File.expand_path('../../../../spec_helper', __FILE__)
+
+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
+
+    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 "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 "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 "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 "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 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
+  end
+end