1 files changed, 121 insertions, 0 deletions
diff --git a/spec/ruby/core/encoding/converter/new_spec.rb b/spec/ruby/core/encoding/converter/new_spec.rb
new file mode 100644
index 0000000000..d228c80a18
--- /dev/null
+++ b/spec/ruby/core/encoding/converter/new_spec.rb
@@ -0,0 +1,121 @@
+# -*- encoding: ascii-8bit -*-
+require File.expand_path('../../../../spec_helper', __FILE__)
+
+with_feature :encoding do
+  describe "Encoding::Converter.new" do
+    it "accepts a String for the source encoding" do
+      conv = Encoding::Converter.new("us-ascii", "utf-8")
+      conv.source_encoding.should == Encoding::US_ASCII
+    end
+
+    it "accepts a String for the destination encoding" do
+      conv = Encoding::Converter.new("us-ascii", "utf-8")
+      conv.destination_encoding.should == Encoding::UTF_8
+    end
+
+    it "accepts an Encoding object for the source encoding" do
+      conv = Encoding::Converter.new(Encoding::US_ASCII, "utf-8")
+      conv.source_encoding.should == Encoding::US_ASCII
+    end
+
+    it "accepts an Encoding object for the destination encoding" do
+      conv = Encoding::Converter.new("us-ascii", Encoding::UTF_8)
+      conv.destination_encoding.should == Encoding::UTF_8
+    end
+
+    it "raises an Encoding::ConverterNotFoundError if both encodings are the same" do
+      lambda do
+        Encoding::Converter.new "utf-8", "utf-8"
+      end.should raise_error(Encoding::ConverterNotFoundError)
+    end
+
+    it "calls #to_str to convert the source encoding argument to an encoding name" do
+      enc = mock("us-ascii")
+      enc.should_receive(:to_str).and_return("us-ascii")
+      conv = Encoding::Converter.new(enc, "utf-8")
+      conv.source_encoding.should == Encoding::US_ASCII
+    end
+
+    it "calls #to_str to convert the destination encoding argument to an encoding name" do
+      enc = mock("utf-8")
+      enc.should_receive(:to_str).and_return("utf-8")
+      conv = Encoding::Converter.new("us-ascii", enc)
+      conv.destination_encoding.should == Encoding::UTF_8
+    end
+
+    it "sets replacement from the options Hash" do
+      conv = Encoding::Converter.new("us-ascii", "utf-8", replace: "fubar")
+      conv.replacement.should == "fubar"
+    end
+
+    it "calls #to_hash to convert the options argument to a Hash if not a Fixnum" do
+      opts = mock("encoding converter options")
+      opts.should_receive(:to_hash).and_return({ replace: "fubar" })
+      conv = Encoding::Converter.new("us-ascii", "utf-8", opts)
+      conv.replacement.should == "fubar"
+    end
+
+    it "calls #to_str to convert the replacement object to a String" do
+      obj = mock("encoding converter replacement")
+      obj.should_receive(:to_str).and_return("fubar")
+      conv = Encoding::Converter.new("us-ascii", "utf-8", replace: obj)
+      conv.replacement.should == "fubar"
+    end
+
+    it "raises a TypeError if #to_str does not return a String" do
+      obj = mock("encoding converter replacement")
+      obj.should_receive(:to_str).and_return(1)
+
+      lambda do
+        Encoding::Converter.new("us-ascii", "utf-8", replace: obj)
+      end.should raise_error(TypeError)
+    end
+
+    it "raises a TypeError if passed true for the replacement object" do
+      lambda do
+        Encoding::Converter.new("us-ascii", "utf-8", replace: true)
+      end.should raise_error(TypeError)
+    end
+
+    it "raises a TypeError if passed false for the replacement object" do
+      lambda do
+        Encoding::Converter.new("us-ascii", "utf-8", replace: false)
+      end.should raise_error(TypeError)
+    end
+
+    it "raises a TypeError if passed a Fixnum for the replacement object" do
+      lambda do
+        Encoding::Converter.new("us-ascii", "utf-8", replace: 1)
+      end.should raise_error(TypeError)
+    end
+
+    it "accepts an empty String for the replacement object" do
+      conv = Encoding::Converter.new("us-ascii", "utf-8", replace: "")
+      conv.replacement.should == ""
+    end
+
+    describe "when passed nil for the replacement object" do
+      describe "when the destination encoding is not UTF-8" do
+        it "sets the replacement String to '?'" do
+          conv = Encoding::Converter.new("us-ascii", "ascii-8bit", replace: nil)
+          conv.replacement.should == "?"
+        end
+
+        it "sets the replacement String encoding to US-ASCII" do
+          conv = Encoding::Converter.new("us-ascii", "ascii-8bit", replace: nil)
+          conv.replacement.encoding.should == Encoding::US_ASCII
+        end
+
+        it "sets the replacement String to '\\uFFFD'" do
+          conv = Encoding::Converter.new("us-ascii", "utf-8", replace: nil)
+          conv.replacement.should == "\u{fffd}".force_encoding("utf-8")
+        end
+
+        it "sets the replacement String encoding to UTF-8" do
+          conv = Encoding::Converter.new("us-ascii", "utf-8", replace: nil)
+          conv.replacement.encoding.should == Encoding::UTF_8
+        end
+      end
+    end
+  end
+end