1 files changed, 63 insertions, 1 deletions
diff --git a/test/optparse/test_optparse.rb b/test/optparse/test_optparse.rb
index 9c73399f5b..5f5ea183b0 100644
--- a/test/optparse/test_optparse.rb
+++ b/test/optparse/test_optparse.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
 require 'test/unit'
 require 'optparse'
 
@@ -6,9 +7,19 @@ class TestOptionParser < Test::Unit::TestCase
     @opt = OptionParser.new
     @flag = self.class		# cannot set by option
   end
-  def no_error(*args)
+
+  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"")})
@@ -43,4 +54,55 @@ class TestOptionParser < Test::Unit::TestCase
     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)
+  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
+    result = {}
+    @opt.parse %w(--host localhost --port 8000 -v), into: result
+    assert_equal({host: "localhost", port: 8000, verbose: true}, result)
+    assert_equal(true, @verbose)
+  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 -F -Ffoo).each do |arg|
+      result = {}
+      @opt.parse([arg, 'foo'], 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))}
+  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
 end