1 files changed, 8 insertions, 5 deletions
diff --git a/Library/Homebrew/test/test_inreplace.rb b/Library/Homebrew/test/test_inreplace.rb
index 91d57f942..0e62f9d3f 100644
--- a/Library/Homebrew/test/test_inreplace.rb
+++ b/Library/Homebrew/test/test_inreplace.rb
@@ -91,26 +91,29 @@ class InreplaceTest < Homebrew::TestCase
   end
 
   def test_inreplace_errors
+    require "tempfile"
     extend(Utils::Inreplace)
 
-    open("test", "w") { |f| f.write "a\nb\nc\n" }
+    file = Tempfile.new("test")
+
+    file.write "a\nb\nc\n"
 
     assert_raises(Utils::InreplaceError) do
-      inreplace "test", "d", "f"
+      inreplace file.path, "d", "f"
     end
 
     assert_raises(Utils::InreplaceError) do
       # Under current context, we are testing `String#gsub!`, so let's disable rubocop temporarily.
-      inreplace("test") { |s| s.gsub!("d", "f") } # rubocop:disable Performance/StringReplacement
+      inreplace(file.path) { |s| s.gsub!("d", "f") } # rubocop:disable Performance/StringReplacement
     end
 
     assert_raises(Utils::InreplaceError) do
-      inreplace("test") do |s|
+      inreplace(file.path) do |s|
         s.change_make_var! "VAR", "value"
         s.remove_make_var! "VAR2"
       end
     end
   ensure
-    File.unlink("test")
+    file.unlink
   end
 end