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describe :argf_each_line, shared: true do
before :each do
@file1_name = fixture __FILE__, "file1.txt"
@file2_name = fixture __FILE__, "file2.txt"
@lines = File.readlines @file1_name
@lines += File.readlines @file2_name
end
it "is a public method" do
argf [@file1_name, @file2_name] do
@argf.public_methods(false).should include(@method)
end
end
it "requires multiple arguments" do
argf [@file1_name, @file2_name] do
@argf.method(@method).arity.should < 0
end
end
it "reads each line of files" do
argf [@file1_name, @file2_name] do
lines = []
@argf.send(@method) { |b| lines << b }
lines.should == @lines
end
end
it "returns self when passed a block" do
argf [@file1_name, @file2_name] do
@argf.send(@method) {}.should equal(@argf)
end
end
describe "with a separator" do
it "yields each separated section of all streams" do
argf [@file1_name, @file2_name] do
@argf.send(@method, '.').to_a.should ==
(File.readlines(@file1_name, '.') + File.readlines(@file2_name, '.'))
end
end
end
describe "when no block is given" do
it "returns an Enumerator" do
argf [@file1_name, @file2_name] do
@argf.send(@method).should be_an_instance_of(Enumerator)
end
end
describe "returned Enumerator" do
describe "size" do
it "should return nil" do
argf [@file1_name, @file2_name] do
@argf.send(@method).size.should == nil
end
end
end
end
end
end
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