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describe :getoptlong_get, :shared => true do
before(:each) do
@opts = GetoptLong.new(
[ '--size', '-s', GetoptLong::REQUIRED_ARGUMENT ],
[ '--verbose', '-v', GetoptLong::NO_ARGUMENT ],
[ '--query', '-q', GetoptLong::NO_ARGUMENT ],
[ '--check', '--valid', '-c', GetoptLong::NO_ARGUMENT ]
)
@opts.quiet = true # silence using $deferr
end
it "returns the next option name and its argument as an Array" do
begin
old_argv = ARGV
ARGV = [ "--size", "10k", "-v", "-q", "a.txt", "b.txt" ]
@opts.send(@method).should == [ "--size", "10k" ]
@opts.send(@method).should == [ "--verbose", "" ]
@opts.send(@method).should == [ "--query", ""]
@opts.send(@method).should == nil
ensure
ARGV = old_argv
end
end
it "shifts ARGV on each call" do
begin
old_argv = ARGV
ARGV = [ "--size", "10k", "-v", "-q", "a.txt", "b.txt" ]
@opts.send(@method)
ARGV.should == [ "-v", "-q", "a.txt", "b.txt" ]
@opts.send(@method)
ARGV.should == [ "-q", "a.txt", "b.txt" ]
@opts.send(@method)
ARGV.should == [ "a.txt", "b.txt" ]
@opts.send(@method)
ARGV.should == [ "a.txt", "b.txt" ]
ensure
ARGV = old_argv
end
end
it "terminates processing when encountering '--'" do
begin
old_argv = ARGV
ARGV = [ "--size", "10k", "--", "-v", "-q", "a.txt", "b.txt" ]
@opts.send(@method)
ARGV.should == ["--", "-v", "-q", "a.txt", "b.txt"]
@opts.send(@method)
ARGV.should == ["-v", "-q", "a.txt", "b.txt"]
@opts.send(@method)
ARGV.should == ["-v", "-q", "a.txt", "b.txt"]
ensure
ARGV = old_argv
end
end
it "raises a if an argument was required, but none given" do
begin
old_argv = ARGV
ARGV = [ "--size" ]
lambda { @opts.send(@method) }.should raise_error(GetoptLong::MissingArgument)
ensure
ARGV = old_argv
end
end
end
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