1 files changed, 45 insertions, 0 deletions
diff --git a/spec/rubyspec/core/io/readline_spec.rb b/spec/rubyspec/core/io/readline_spec.rb
new file mode 100644
index 0000000000..39706948eb
--- /dev/null
+++ b/spec/rubyspec/core/io/readline_spec.rb
@@ -0,0 +1,45 @@
+# -*- encoding: utf-8 -*-
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../fixtures/classes', __FILE__)
+
+describe "IO#readline" do
+  before :each do
+    @io = IOSpecs.io_fixture "lines.txt"
+  end
+
+  after :each do
+    @io.close unless @io.closed?
+  end
+
+  it "returns the next line on the stream" do
+    @io.readline.should == "Voici la ligne une.\n"
+    @io.readline.should == "Qui è la linea due.\n"
+  end
+
+  it "goes back to first position after a rewind" do
+    @io.readline.should == "Voici la ligne une.\n"
+    @io.rewind
+    @io.readline.should == "Voici la ligne une.\n"
+  end
+
+  it "returns characters after the position set by #seek" do
+    @io.seek(1)
+    @io.readline.should == "oici la ligne une.\n"
+  end
+
+  it "raises EOFError on end of stream" do
+    IOSpecs.lines.length.times { @io.readline }
+    lambda { @io.readline }.should raise_error(EOFError)
+  end
+
+  it "raises IOError on closed stream" do
+    lambda { IOSpecs.closed_io.readline }.should raise_error(IOError)
+  end
+
+  it "assigns the returned line to $_" do
+    IOSpecs.lines.each do |line|
+      @io.readline
+      $_.should == line
+    end
+  end
+end