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# frozen_string_literal: false
require 'test/unit'
require 'optparse'
class TestOptionParser < Test::Unit::TestCase
def setup
@opt = OptionParser.new
@flag = self.class # cannot set by option
end
class DummyOutput < String
alias write concat
end
def assert_no_error(*args)
$stderr, stderr = DummyOutput.new, $stderr
assert_nothing_raised(*args) {return yield}
ensure
stderr, $stderr = $stderr, stderr
$!.backtrace.delete_if {|e| /\A#{Regexp.quote(__FILE__)}:#{__LINE__-2}/o =~ e} if $!
assert_empty(stderr)
end
alias no_error assert_no_error
def test_permute
assert_equal(%w"", no_error {@opt.permute!(%w"")})
assert_equal(self.class, @flag)
assert_equal(%w"foo bar", no_error {@opt.permute!(%w"foo bar")})
assert_equal(self.class, @flag)
assert_equal(%w"- foo bar", no_error {@opt.permute!(%w"- foo bar")})
assert_equal(self.class, @flag)
assert_equal(%w"foo bar", no_error {@opt.permute!(%w"-- foo bar")})
assert_equal(self.class, @flag)
assert_equal(%w"foo - bar", no_error {@opt.permute!(%w"foo - bar")})
assert_equal(self.class, @flag)
assert_equal(%w"foo bar", no_error {@opt.permute!(%w"foo -- bar")})
assert_equal(self.class, @flag)
assert_equal(%w"foo --help bar", no_error {@opt.permute!(%w"foo -- --help bar")})
assert_equal(self.class, @flag)
end
def test_order
assert_equal(%w"", no_error {@opt.order!(%w"")})
assert_equal(self.class, @flag)
assert_equal(%w"foo bar", no_error {@opt.order!(%w"foo bar")})
assert_equal(self.class, @flag)
assert_equal(%w"- foo bar", no_error {@opt.order!(%w"- foo bar")})
assert_equal(self.class, @flag)
assert_equal(%w"foo bar", no_error {@opt.permute!(%w"-- foo bar")})
assert_equal(self.class, @flag)
assert_equal(%w"foo - bar", no_error {@opt.order!(%w"foo - bar")})
assert_equal(self.class, @flag)
assert_equal(%w"foo -- bar", no_error {@opt.order!(%w"foo -- bar")})
assert_equal(self.class, @flag)
assert_equal(%w"foo -- --help bar", no_error {@opt.order!(%w"foo -- --help bar")})
assert_equal(self.class, @flag)
end
def test_regexp
return unless defined?(@reopt)
assert_equal(%w"", no_error {@opt.parse!(%w"--regexp=/foo/")})
assert_equal(/foo/, @reopt)
assert_equal(%w"", no_error {@opt.parse!(%w"--regexp=/foo/i")})
assert_equal(/foo/i, @reopt)
assert_equal(%w"", no_error {@opt.parse!(%w"--regexp=/foo/n")})
assert_equal(/foo/n, @reopt)
assert_equal(%w"", no_error {@opt.parse!(%W"--regexp=/\u{3042}/s")})
assert_equal(Encoding::Windows_31J, @reopt.encoding)
assert_equal("\x82\xa0".force_encoding(Encoding::Windows_31J), @reopt.source)
end
def test_into
@opt.def_option "-h", "--host=HOST", "hostname"
@opt.def_option "-p", "--port=PORT", "port", Integer
@opt.def_option "-v", "--verbose" do @verbose = true end
@opt.def_option "-q", "--quiet" do @quiet = true end
@opt.def_option "-o", "--option [OPT]" do |opt| @option = opt end
result = {}
@opt.parse %w(--host localhost --port 8000 -v), into: result
assert_equal({host: "localhost", port: 8000, verbose: true}, result)
assert_equal(true, @verbose)
result = {}
@opt.parse %w(--option -q), into: result
assert_equal({quiet: true, option: nil}, result)
result = {}
@opt.parse %w(--option OPTION -v), into: result
assert_equal({verbose: true, option: "OPTION"}, result)
end
def test_require_exact
@opt.def_option('-F', '--zrs=IRS', 'zrs')
%w(--zrs --zr --z -zfoo -z -F -Ffoo).each do |arg|
result = {}
@opt.parse([arg, 'foo'], into: result)
assert_equal({zrs: 'foo'}, result)
end
@opt.require_exact = true
[%w(--zrs foo), %w(--zrs=foo), %w(-F foo), %w(-Ffoo)].each do |args|
result = {}
@opt.parse(args, into: result)
assert_equal({zrs: 'foo'}, result)
end
assert_raise(OptionParser::InvalidOption) {@opt.parse(%w(--zr foo))}
assert_raise(OptionParser::InvalidOption) {@opt.parse(%w(--z foo))}
assert_raise(OptionParser::InvalidOption) {@opt.parse(%w(-zrs foo))}
assert_raise(OptionParser::InvalidOption) {@opt.parse(%w(-zr foo))}
assert_raise(OptionParser::InvalidOption) {@opt.parse(%w(-z foo))}
@opt.def_option('-f', '--[no-]foo', 'foo') {|arg| @foo = arg}
@opt.parse(%w[-f])
assert_equal(true, @foo)
@opt.parse(%w[--foo])
assert_equal(true, @foo)
@opt.parse(%w[--no-foo])
assert_equal(false, @foo)
end
def test_exact_option
@opt.def_option('-F', '--zrs=IRS', 'zrs')
%w(--zrs --zr --z -zfoo -z -F -Ffoo).each do |arg|
result = {}
@opt.parse([arg, 'foo'], into: result)
assert_equal({zrs: 'foo'}, result)
end
[%w(--zrs foo), %w(--zrs=foo), %w(-F foo), %w(-Ffoo)].each do |args|
result = {}
@opt.parse(args, into: result, exact: true)
assert_equal({zrs: 'foo'}, result)
end
assert_raise(OptionParser::InvalidOption) {@opt.parse(%w(--zr foo), exact: true)}
assert_raise(OptionParser::InvalidOption) {@opt.parse(%w(--z foo), exact: true)}
assert_raise(OptionParser::InvalidOption) {@opt.parse(%w(-zrs foo), exact: true)}
assert_raise(OptionParser::InvalidOption) {@opt.parse(%w(-zr foo), exact: true)}
assert_raise(OptionParser::InvalidOption) {@opt.parse(%w(-z foo), exact: true)}
@opt.def_option('-f', '--[no-]foo', 'foo') {|arg| @foo = arg}
@opt.parse(%w[-f], exact: true)
assert_equal(true, @foo)
@opt.parse(%w[--foo], exact: true)
assert_equal(true, @foo)
@opt.parse(%w[--no-foo], exact: true)
assert_equal(false, @foo)
end
def test_raise_unknown
@opt.def_option('--my-foo [ARG]') {|arg| @foo = arg}
assert @opt.raise_unknown
@opt.raise_unknown = false
assert_equal(%w[--my-bar], @opt.parse(%w[--my-foo --my-bar]))
assert_nil(@foo)
assert_equal(%w[--my-bar], @opt.parse(%w[--my-foo x --my-bar]))
assert_equal("x", @foo)
end
def test_nonopt_pattern
@opt.def_option(/^[^-]/) do |arg|
assert(false, "Never gets called")
end
e = assert_raise(OptionParser::InvalidOption) {@opt.parse(%w(-t))}
assert_equal(["-t"], e.args)
end
def test_help_pager
require 'tmpdir'
Dir.mktmpdir do |dir|
File.open(File.join(dir, "options.rb"), "w") do |f|
f.puts "#{<<~"begin;"}\n#{<<~'end;'}"
begin;
stdout = STDOUT.dup
def stdout.tty?; true; end
Object.__send__(:remove_const, :STDOUT)
STDOUT = stdout
ARGV.options do |opt|
end;
100.times {|i| f.puts " opt.on('--opt-#{i}') {}"}
f.puts "#{<<~"begin;"}\n#{<<~'end;'}"
begin;
opt.parse!
end
end;
end
optparse = $".find {|path| path.end_with?("/optparse.rb")}
args = ["-r#{optparse}", "options.rb", "--help"]
cmd = File.join(dir, "pager.cmd")
if RbConfig::CONFIG["EXECUTABLE_EXTS"]&.include?(".cmd")
command = "@echo off"
else # if File.executable?("/bin/sh")
# TruffleRuby just calls `posix_spawnp` and no fallback to `/bin/sh`.
command = "#!/bin/sh\n"
end
[
[{"RUBY_PAGER"=>cmd, "PAGER"=>"echo ng"}, "Executing RUBY_PAGER"],
[{"RUBY_PAGER"=>nil, "PAGER"=>cmd}, "Executing PAGER"],
].each do |env, expected|
File.write(cmd, "#{command}\n" "echo #{expected}\n", perm: 0o700)
assert_in_out_err([env, *args], "", [expected], chdir: dir)
end
end
end
end
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