test: why believe source directories are writable always?

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35591 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 8 insertions, 4 deletions

diff --git a/test/csv/test_features.rb b/test/csv/test_features.rb
index 0da557e6e1..33166e8d77 100755
--- a/test/csv/test_features.rb
+++ b/test/csv/test_features.rb
@@ -208,7 +208,9 @@ class TestCSV::Features < TestCSV
   end
 
   def test_gzip_writer_bug_fix
-    file   = File.join(File.dirname(__FILE__), "temp.gz")
+    tempfile = Tempfile.new(%w"temp .gz")
+    tempfile.close
+    file = tempfile.path
     zipped = nil
     assert_nothing_raised(NoMethodError) do
       zipped = CSV.new(Zlib::GzipWriter.open(file))
@@ -220,7 +222,7 @@ class TestCSV::Features < TestCSV
     assert( Zlib::GzipReader.open(file) { |f| f.read }.
                              include?($INPUT_RECORD_SEPARATOR),
             "@row_sep did not default" )
-    File.unlink(file)
+    tempfile.close(true)
   end
 
   def test_inspect_is_smart_about_io_types
@@ -230,11 +232,13 @@ class TestCSV::Features < TestCSV
     str = CSV.new($stderr).inspect
     assert(str.include?("io_type:$stderr"), "IO type not detected.")
 
-    path = File.join(File.dirname(__FILE__), "temp.csv")
+    tempfile = Tempfile.new(%w"temp .csv")
+    tempfile.close
+    path = tempfile.path
     File.open(path, "w") { |csv| csv << "one,two,three\n1,2,3\n" }
     str  = CSV.open(path) { |csv| csv.inspect }
     assert(str.include?("io_type:File"), "IO type not detected.")
-    File.unlink(path)
+    tempfile.close(true)
   end
 
   def test_inspect_shows_key_attributes