1 files changed, 46 insertions, 0 deletions
diff --git a/spec/ruby/core/argf/close_spec.rb b/spec/ruby/core/argf/close_spec.rb
new file mode 100644
index 0000000000..b56f7f5564
--- /dev/null
+++ b/spec/ruby/core/argf/close_spec.rb
@@ -0,0 +1,46 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "ARGF.close" do
+  before :each do
+    @file1_name = fixture __FILE__, "file1.txt"
+    @file2_name = fixture __FILE__, "file2.txt"
+  end
+
+  it "closes the current open stream" do
+    argf [@file1_name, @file2_name] do
+      io = @argf.to_io
+      @argf.close
+      io.closed?.should be_true
+    end
+  end
+
+  it "returns self" do
+    argf [@file1_name, @file2_name] do
+      @argf.close.should equal(@argf)
+    end
+  end
+
+  ruby_version_is ""..."2.3" do
+    it "raises an IOError if called on a closed stream" do
+      argf [@file1_name] do
+        lambda { @argf.close }.should_not raise_error
+        lambda { @argf.close }.should raise_error(IOError)
+      end
+    end
+  end
+
+  ruby_version_is "2.3" do
+    it "doesn't raise an IOError if called on a closed stream" do
+      argf [@file1_name] do
+        lambda { @argf.close }.should_not raise_error
+        lambda { @argf.close }.should_not raise_error
+      end
+    end
+  end
+end
+
+describe "ARGF.close" do
+  it "does not close STDIN" do
+    ruby_exe("ARGV.replace(['-']); ARGF.close; print ARGF.closed?").should == "false"
+  end
+end