* lib/fileutils.rb (FileUtils::LowMethods): make low level methods

in NoWrite and DryRun to do nothing.  [ruby-dev:43129]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30787 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/fileutils/clobber.rb

@@ -0,0 +1,89 @@
+require 'fileutils'
+require 'test/unit'
+require 'tmpdir'
+require_relative 'fileasserts'
+
+class TestFileUtils < Test::Unit::TestCase
+end
+
+module TestFileUtils::Clobber
+  def my_rm_rf(path)
+    if File.exist?('/bin/rm')
+      system %Q[/bin/rm -rf "#{path}"]
+    else
+      FileUtils.rm_rf path
+    end
+  end
+
+  SRC  = 'data/src'
+  COPY = 'data/copy'
+
+  def setup
+    @prevdir = Dir.pwd
+    class << (@fileutils_output = "")
+      alias puts <<
+    end
+    tmproot = "#{Dir.tmpdir}/fileutils.rb.#{$$}"
+    Dir.mkdir tmproot unless File.directory?(tmproot)
+    Dir.chdir tmproot
+    my_rm_rf 'data'; Dir.mkdir 'data'
+    my_rm_rf 'tmp'; Dir.mkdir 'tmp'
+    File.open(SRC,  'w') {|f| f.puts 'dummy' }
+    File.open(COPY, 'w') {|f| f.puts 'dummy' }
+  end
+
+  def teardown
+    tmproot = Dir.pwd
+    Dir.chdir @prevdir
+    my_rm_rf tmproot
+  end
+
+  def test_cp
+    cp SRC, 'tmp/cp'
+    check 'tmp/cp'
+  end
+
+  def test_mv
+    mv SRC, 'tmp/mv'
+    check 'tmp/mv'
+  end
+
+  def check(dest, message=nil)
+    assert_file_not_exist dest, message
+    assert_file_exist SRC, message
+    assert_same_file SRC, COPY, message
+  end
+
+  def test_rm
+    rm SRC
+    assert_file_exist SRC
+    assert_same_file SRC, COPY
+  end
+
+  def test_rm_f
+    rm_f SRC
+    assert_file_exist SRC
+    assert_same_file SRC, COPY
+  end
+
+  def test_rm_rf
+    rm_rf SRC
+    assert_file_exist SRC
+    assert_same_file SRC, COPY
+  end
+
+  def test_mkdir
+    mkdir 'dir'
+    assert_file_not_exist 'dir'
+  end
+
+  def test_mkdir_p
+    mkdir 'dir/dir/dir'
+    assert_file_not_exist 'dir'
+  end
+
+  def test_copy_entry
+    copy_entry SRC, 'tmp/copy_entry'
+    check 'tmp/copy_entry', bug4331 = '[ruby-dev:43129]'
+  end
+end