1 files changed, 32 insertions, 0 deletions
diff --git a/spec/ruby/core/argf/eof_spec.rb b/spec/ruby/core/argf/eof_spec.rb
new file mode 100644
index 0000000000..940d104d69
--- /dev/null
+++ b/spec/ruby/core/argf/eof_spec.rb
@@ -0,0 +1,32 @@
+require_relative '../../spec_helper'
+
+describe "ARGF.eof" do
+  it "is an alias of ARGF.eof?" do
+    ARGF.method(:eof).should == ARGF.method(:eof?)
+  end
+end
+
+describe "ARGF.eof?" do
+  before :each do
+    @file1 = fixture __FILE__, "file1.txt"
+    @file2 = fixture __FILE__, "file2.txt"
+  end
+
+  # NOTE: this test assumes that fixtures files have two lines each
+  it "returns true when reaching the end of a file" do
+    argf [@file1, @file2] do
+      result = []
+      while @argf.gets
+        result << @argf.eof?
+      end
+      result.should == [false, true, false, true]
+    end
+  end
+
+  it "raises IOError when called on a closed stream" do
+    argf [@file1] do
+      @argf.read
+      -> { @argf.eof? }.should.raise(IOError)
+    end
+  end
+end