1 files changed, 43 insertions, 0 deletions
diff --git a/spec/ruby/core/encoding/list_spec.rb b/spec/ruby/core/encoding/list_spec.rb
new file mode 100644
index 0000000000..18488607e5
--- /dev/null
+++ b/spec/ruby/core/encoding/list_spec.rb
@@ -0,0 +1,43 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+with_feature :encoding do
+  describe "Encoding.list" do
+    it "returns an Array" do
+      Encoding.list.should be_an_instance_of(Array)
+    end
+
+    it "returns an Array of Encoding objects" do
+      Encoding.list.each do |enc|
+        enc.should be_an_instance_of(Encoding)
+      end
+    end
+
+    it "returns each encoding only once" do
+      orig = Encoding.list.map {|e| e.name}
+      orig.should == orig.uniq
+    end
+
+    it "includes the default external encoding" do
+      Encoding.list.include?(Encoding.default_external).should be_true
+    end
+
+    it "does not include any alias names" do
+      Encoding.aliases.keys.each do |enc_alias|
+        Encoding.list.include?(enc_alias).should be_false
+      end
+    end
+
+    it "includes all aliased encodings" do
+      Encoding.aliases.values.each do |enc_alias|
+        Encoding.list.include?(Encoding.find(enc_alias)).should be_true
+      end
+    end
+
+    it "includes dummy encodings" do
+      Encoding.list.select {|e| e.dummy?}.should_not == []
+    end
+
+    # TODO: Find example that illustrates this
+    it "updates the list when #find is used to load a new encoding"
+  end
+end