1 files changed, 7 insertions, 20 deletions
diff --git a/tests/json_common_interface_test.rb b/tests/json_common_interface_test.rb
index 4fdc2b1..9148b78 100644
--- a/tests/json_common_interface_test.rb
+++ b/tests/json_common_interface_test.rb
@@ -152,31 +152,18 @@ class JSONCommonInterfaceTest < Test::Unit::TestCase
     temp_file_containing(@json) do |filespec|
       parsed_object = JSON.public_send(method_name, filespec, symbolize_names: true)
       key_classes = parsed_object.keys.map(&:class)
-      assert_true key_classes.include?(Symbol) && (! key_classes.include?(String))
+      assert_include(key_classes, Symbol)
+      assert_not_include(key_classes, String)
     end
   end
 
-  # Copied and slightly modified from https://github.com/keithrbennett/trick_bag
-  # (https://github.com/keithrbennett/trick_bag/blob/master/lib/trick_bag/io/temp_files.rb).
-  #
-  # For the easy creation and deletion of a temp file populated with text,
-  # wrapped around the code block you provide.
-  #
-  # @param text the text to write to the temporary file
-  # @param file_prefix optional prefix for the temporary file's name
-  # @yield filespec of the temporary file
   def temp_file_containing(text, file_prefix = '')
     raise "This method must be called with a code block." unless block_given?
 
-    filespec = nil
-    begin
-      Tempfile.open(file_prefix) do |file|
-        file << text
-        filespec = file.path
-      end
-      yield(filespec)
-    ensure
-      File.delete(filespec) if filespec && File.exist?(filespec)
-    end
+    Tempfile.create(file_prefix) do |file|
+      file << text
+      file.close
+      yield file.path
     end
+  end
 end