1 files changed, 46 insertions, 0 deletions
diff --git a/spec/rubyspec/core/argf/binmode_spec.rb b/spec/rubyspec/core/argf/binmode_spec.rb
new file mode 100644
index 0000000000..3daf4f4345
--- /dev/null
+++ b/spec/rubyspec/core/argf/binmode_spec.rb
@@ -0,0 +1,46 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "ARGF.binmode" do
+  before :each do
+    @file1    = fixture __FILE__, "file1.txt"
+    @file2    = fixture __FILE__, "file2.txt"
+    @bin_file = fixture __FILE__, "bin_file.txt"
+  end
+
+  it "returns self" do
+    ruby_exe("puts(ARGF.binmode == ARGF)", args: @bin_file).chomp.should == 'true'
+  end
+
+  platform_is :windows do
+    it "puts reading into binmode" do
+      argf [@bin_file, @bin_file] do
+        @argf.gets.should == "test\n"
+        @argf.binmode
+        @argf.gets.should == "test\r\n"
+      end
+    end
+
+    it "puts alls subsequent stream reading through ARGF into binmode" do
+      argf [@bin_file, @bin_file] do
+        @argf.binmode
+        @argf.gets.should == "test\r\n"
+        @argf.gets.should == "test\r\n"
+      end
+    end
+  end
+
+  platform_is_not :windows do
+    # This does nothing on Unix but it should not raise any errors.
+    it "does not raise an error" do
+      ruby_exe("ARGF.binmode", args: @bin_file)
+      $?.should  be_kind_of(Process::Status)
+      $?.to_i.should == 0
+    end
+  end
+
+  it "sets the file's encoding to ASCII-8BIT" do
+    script = fixture __FILE__, "encoding.rb"
+    output = "true\n#{Encoding::ASCII_8BIT}\n#{Encoding::ASCII_8BIT}\n"
+    ruby_exe(script, args: [@bin_file, @file1]).should == output
+  end
+end