Remove comment and fix BisectTest config construction

Configuration#initialize does not accept failing_test as a keyword;
set it via the accessor instead, and use a Tempfile rather than a
hardcoded /tmp path.

Assisted-By: devx/a7dfa242-697c-48e5-8e5d-65c25452ceff

Author: bitwise-aiden

ruby/lib/ci/queue/bisect.rb

@@ -47,8 +47,6 @@ def succeeded!
         @tests = second_half
       end
 
-      # Public like every other queue's config (CI::Queue::Common), since consumers
-      # configure the queue while tests load.
       attr_reader :config
 
       private

ruby/test/ci/queue/bisect_test.rb

@@ -1,13 +1,17 @@
 # frozen_string_literal: true
 require 'test_helper'
+require 'tempfile'
 
 class CI::Queue::BisectTest < Minitest::Test
-  TEST_LIST_PATH = '/tmp/bisect-queue-test.txt'.freeze
-
   def test_config_is_public
-    config = CI::Queue::Configuration.new(failing_test: 'ATest#test_bar')
-    File.write(TEST_LIST_PATH, "ATest#test_foo\nATest#test_bar\n")
+    config = CI::Queue::Configuration.new
+    config.failing_test = 'ATest#test_bar'
+
+    Tempfile.create('test_order') do |file|
+      file.write("ATest#test_foo\nATest#test_bar\n")
+      file.flush
 
-    assert_same(config, CI::Queue::Bisect.new(TEST_LIST_PATH, config).config)
+      assert_same(config, CI::Queue::Bisect.new(file.path, config).config)
+    end
   end
 end