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* For easier modifications of ruby/spec by MRI developers. * .gitignore: track changes under spec. * spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec. These files can therefore be updated like any other file in MRI. Instructions are provided in spec/README. [Feature #13156] [ruby-core:79246] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
39 lines
1 KiB
Ruby
39 lines
1 KiB
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
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describe "ARGF.rewind" do
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before :each do
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@file1_name = fixture __FILE__, "file1.txt"
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@file2_name = fixture __FILE__, "file2.txt"
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@file1 = File.readlines @file1_name
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@file2 = File.readlines @file2_name
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end
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# NOTE: this test assumes that fixtures files have two lines each
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it "goes back to beginning of current file" do
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argf [@file1_name, @file2_name] do
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@argf.gets
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@argf.rewind
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@argf.gets.should == @file1.first
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@argf.gets # finish reading file1
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@argf.gets
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@argf.rewind
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@argf.gets.should == @file2.first
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end
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end
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it "resets ARGF.lineno to 0" do
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script = fixture __FILE__, "rewind.rb"
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out = ruby_exe(script, args: [@file1_name, @file2_name])
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out.should == "0\n1\n0\n"
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end
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it "raises an ArgumentError when end of stream reached" do
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argf [@file1_name, @file2_name] do
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@argf.read
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lambda { @argf.rewind }.should raise_error(ArgumentError)
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end
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end
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end
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