* file.c: add optional basedir argument for realpath/realdirpath.

  (realpath_internal): handle basedir.
  (rb_file_s_realpath): extract basedir from argument list.
  (rb_file_s_realdirpath): extract basedir from argument list.

* lib/pathname.rb (realpath): pass basedir.
  (realdirpath): ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26841 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 20 insertions, 0 deletions

diff --git a/test/ruby/test_file.rb b/test/ruby/test_file.rb
index b8ba9a4b19..90f2ec1f53 100644
--- a/test/ruby/test_file.rb
+++ b/test/ruby/test_file.rb
@@ -157,4 +157,24 @@ class TestFile < Test::Unit::TestCase
     assert_raise(TypeError) { File::Stat.allocate.readable? }
     assert_nothing_raised { File::Stat.allocate.inspect }
   end
+
+  def test_realpath
+    Dir.mktmpdir('rubytest-realpath') {|tmpdir|
+      realdir = File.realpath(tmpdir)
+      tst = realdir.sub(/#{Regexp.escape(File::SEPARATOR)}/, '\0\0\0')
+      assert_equal(realdir, File.realpath(tst))
+      assert_equal(realdir, File.realpath(".", tst))
+    }
+  end
+
+  def test_realdirpath
+    Dir.mktmpdir('rubytest-realdirpath') {|tmpdir|
+      realdir = File.realpath(tmpdir)
+      tst = realdir.sub(/#{Regexp.escape(File::SEPARATOR)}/, '\0\0\0')
+      assert_equal(realdir, File.realdirpath(tst))
+      assert_equal(realdir, File.realdirpath(".", tst))
+      assert_equal(File.join(realdir, "foo"), File.realdirpath("foo", tst))
+    }
+  end
+
 end