1 files changed, 58 insertions, 0 deletions
diff --git a/spec/rubyspec/core/argf/shared/each_codepoint.rb b/spec/rubyspec/core/argf/shared/each_codepoint.rb
new file mode 100644
index 0000000000..e2a2dfff46
--- /dev/null
+++ b/spec/rubyspec/core/argf/shared/each_codepoint.rb
@@ -0,0 +1,58 @@
+describe :argf_each_codepoint, shared: true do
+  before :each do
+    file1_name = fixture __FILE__, "file1.txt"
+    file2_name = fixture __FILE__, "file2.txt"
+    @filenames = [file1_name, file2_name]
+
+    @codepoints = File.read(file1_name).codepoints
+    @codepoints.concat File.read(file2_name).codepoints
+  end
+
+  it "is a public method" do
+    argf @filenames do
+      @argf.public_methods(false).should include(@method)
+    end
+  end
+
+  it "does not require arguments" do
+    argf @filenames do
+      @argf.method(@method).arity.should == 0
+    end
+  end
+
+  it "returns self when passed a block" do
+    argf @filenames do
+      @argf.send(@method) {}.should equal(@argf)
+    end
+  end
+
+  it "returns an Enumerator when passed no block" do
+    argf @filenames do
+      @argf.send(@method).should be_an_instance_of(Enumerator)
+    end
+  end
+
+  it "yields each codepoint of all streams" do
+    argf @filenames do
+      @argf.send(@method).to_a.should == @codepoints
+    end
+  end
+
+  describe "when no block is given" do
+    it "returns an Enumerator" do
+      argf @filenames do
+        @argf.send(@method).should be_an_instance_of(Enumerator)
+      end
+    end
+
+    describe "returned Enumerator" do
+      describe "size" do
+        it "should return nil" do
+          argf @filenames do
+            @argf.send(@method).size.should == nil
+          end
+        end
+      end
+    end
+  end
+end