text: # frozen_string_literal: true
  
  require "abstract_unit"
  require "active_support/core_ext/hash"
  require "active_support/parameter_filter"
  
  class ParameterFilterTest < ActiveSupport::TestCase
    test "process parameter filter" do
      test_hashes = [
      [{ "foo" => "bar" }, { "foo" => "bar" }, %w'food'],
      [{ "foo" => "bar" }, { "foo" => "[FILTERED]" }, %w'foo'],
      [{ "foo" => "bar", "bar" => "foo" }, { "foo" => "[FILTERED]", "bar" => "foo" }, %w'foo baz'],
      [{ "foo" => "bar", "baz" => "foo" }, { "foo" => "[FILTERED]", "baz" => "[FILTERED]" }, %w'foo baz'],
      [{ "bar" => { "foo" => "bar", "bar" => "foo" } }, { "bar" => { "foo" => "[FILTERED]", "bar" => "foo" } }, %w'fo'],
      [{ "foo" => { "foo" => "bar", "bar" => "foo" } }, { "foo" => "[FILTERED]" }, %w'f banana'],
      [{ "deep" => { "cc" => { "code" => "bar", "bar" => "foo" }, "ss" => { "code" => "bar" } } }, { "deep" => { "cc" => { "code" => "[FILTERED]", "bar" => "foo" }, "ss" => { "code" => "bar" } } }, %w'deep.cc.code'],
      [{ "baz" => [{ "foo" => "baz" }, "1"] }, { "baz" => [{ "foo" => "[FILTERED]" }, "1"] }, [/foo/]]]
  
      test_hashes.each do |before_filter, after_filter, filter_words|
        parameter_filter = ActiveSupport::ParameterFilter.new(filter_words)
        assert_equal after_filter, parameter_filter.filter(before_filter)
  
        filter_words << "blah"
        filter_words << lambda { |key, value|
          value.reverse! if key =~ /bargain/
        }
        filter_words << lambda { |key, value, original_params|
          value.replace("world!") if original_params["barg"]["blah"] == "bar" && key == "hello"
        }
  
        parameter_filter = ActiveSupport::ParameterFilter.new(filter_words)
        before_filter["barg"] = { :bargain => "gain", "blah" => "bar", "bar" => { "bargain" => { "blah" => "foo", "hello" => "world" } } }
        after_filter["barg"]  = { :bargain => "niag", "blah" => "[FILTERED]", "bar" => { "bargain" => { "blah" => "[FILTERED]", "hello" => "world!" } } }
  
        assert_equal after_filter, parameter_filter.filter(before_filter)
      end
    end
  
    test "filter should return mask option when value is filtered" do
      mask = Object.new.freeze
      test_hashes = [
      [{ "foo" => "bar" }, { "foo" => "bar" }, %w'food'],
      [{ "foo" => "bar" }, { "foo" => mask }, %w'foo'],
      [{ "foo" => "bar", "bar" => "foo" }, { "foo" => mask, "bar" => "foo" }, %w'foo baz'],
      [{ "foo" => "bar", "baz" => "foo" }, { "foo" => mask, "baz" => mask }, %w'foo baz'],
      [{ "bar" => { "foo" => "bar", "bar" => "foo" } }, { "bar" => { "foo" => mask, "bar" => "foo" } }, %w'fo'],
      [{ "foo" => { "foo" => "bar", "bar" => "foo" } }, { "foo" => mask }, %w'f banana'],
      [{ "deep" => { "cc" => { "code" => "bar", "bar" => "foo" }, "ss" => { "code" => "bar" } } }, { "deep" => { "cc" => { "code" => mask, "bar" => "foo" }, "ss" => { "code" => "bar" } } }, %w'deep.cc.code'],
      [{ "baz" => [{ "foo" => "baz" }, "1"] }, { "baz" => [{ "foo" => mask }, "1"] }, [/foo/]]]
  
      test_hashes.each do |before_filter, after_filter, filter_words|
        parameter_filter = ActiveSupport::ParameterFilter.new(filter_words, mask: mask)
        assert_equal after_filter, parameter_filter.filter(before_filter)
  
        filter_words << "blah"
        filter_words << lambda { |key, value|
          value.reverse! if key =~ /bargain/
        }
        filter_words << lambda { |key, value, original_params|
          value.replace("world!") if original_params["barg"]["blah"] == "bar" && key == "hello"
        }
  
        parameter_filter = ActiveSupport::ParameterFilter.new(filter_words, mask: mask)
        before_filter["barg"] = { :bargain => "gain", "blah" => "bar", "bar" => { "bargain" => { "blah" => "foo", "hello" => "world" } } }
        after_filter["barg"]  = { :bargain => "niag", "blah" => mask, "bar" => { "bargain" => { "blah" => mask, "hello" => "world!" } } }
  
        assert_equal after_filter, parameter_filter.filter(before_filter)
      end
    end
  
    test "filter_param" do
      parameter_filter = ActiveSupport::ParameterFilter.new(["foo", /bar/])
      assert_equal "[FILTERED]", parameter_filter.filter_param("food", "secret vlaue")
      assert_equal "[FILTERED]", parameter_filter.filter_param("baz.foo", "secret vlaue")
      assert_equal "[FILTERED]", parameter_filter.filter_param("barbar", "secret vlaue")
      assert_equal "non secret value", parameter_filter.filter_param("baz", "non secret value")
    end
  
    test "filter_param can work with empty filters" do
      parameter_filter = ActiveSupport::ParameterFilter.new
      assert_equal "bar", parameter_filter.filter_param("foo", "bar")
    end
  
    test "parameter filter should maintain hash with indifferent access" do
      test_hashes = [
        [{ "foo" => "bar" }.with_indifferent_access, ["blah"]],
        [{ "foo" => "bar" }.with_indifferent_access, []]
      ]
  
      test_hashes.each do |before_filter, filter_words|
        parameter_filter = ActiveSupport::ParameterFilter.new(filter_words)
        assert_instance_of ActiveSupport::HashWithIndifferentAccess,
                           parameter_filter.filter(before_filter)
      end
    end
  
    test "filter_param should return mask option when value is filtered" do
      mask = Object.new.freeze
      parameter_filter = ActiveSupport::ParameterFilter.new(["foo", /bar/], mask: mask)
      assert_equal mask, parameter_filter.filter_param("food", "secret vlaue")
      assert_equal mask, parameter_filter.filter_param("baz.foo", "secret vlaue")
      assert_equal mask, parameter_filter.filter_param("barbar", "secret vlaue")
      assert_equal "non secret value", parameter_filter.filter_param("baz", "non secret value")
    end
  end
  