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1b86d90136
In Ruby 2.3 or later, `String#+@` is available and `+@` is faster than `dup`. ```ruby # frozen_string_literal: true require "bundler/inline" gemfile(true) do source "https://rubygems.org" gem "benchmark-ips" end Benchmark.ips do |x| x.report('+@') { +"" } x.report('dup') { "".dup } x.compare! end ``` ``` $ ruby -v benchmark.rb ruby 2.5.1p57 (2018-03-29 revision 63029) [x86_64-linux] Warming up -------------------------------------- +@ 282.289k i/100ms dup 187.638k i/100ms Calculating ------------------------------------- +@ 6.775M (± 3.6%) i/s - 33.875M in 5.006253s dup 3.320M (± 2.2%) i/s - 16.700M in 5.032125s Comparison: +@: 6775299.3 i/s dup: 3320400.7 i/s - 2.04x slower ```
90 lines
2.7 KiB
Ruby
90 lines
2.7 KiB
Ruby
# frozen_string_literal: true
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require "abstract_unit"
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require "active_support/cache"
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class CacheKeyTest < ActiveSupport::TestCase
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def test_entry_legacy_optional_ivars
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legacy = Class.new(ActiveSupport::Cache::Entry) do
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def initialize(value, options = {})
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@value = value
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@expires_in = nil
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@created_at = nil
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super
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end
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end
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entry = legacy.new "foo"
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assert_equal "foo", entry.value
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end
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def test_expand_cache_key
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assert_equal "1/2/true", ActiveSupport::Cache.expand_cache_key([1, "2", true])
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assert_equal "name/1/2/true", ActiveSupport::Cache.expand_cache_key([1, "2", true], :name)
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end
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def test_expand_cache_key_with_rails_cache_id
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with_env("RAILS_CACHE_ID" => "c99") do
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assert_equal "c99/foo", ActiveSupport::Cache.expand_cache_key(:foo)
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assert_equal "c99/foo", ActiveSupport::Cache.expand_cache_key([:foo])
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assert_equal "c99/foo/bar", ActiveSupport::Cache.expand_cache_key([:foo, :bar])
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assert_equal "nm/c99/foo", ActiveSupport::Cache.expand_cache_key(:foo, :nm)
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assert_equal "nm/c99/foo", ActiveSupport::Cache.expand_cache_key([:foo], :nm)
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assert_equal "nm/c99/foo/bar", ActiveSupport::Cache.expand_cache_key([:foo, :bar], :nm)
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end
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end
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def test_expand_cache_key_with_rails_app_version
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with_env("RAILS_APP_VERSION" => "rails3") do
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assert_equal "rails3/foo", ActiveSupport::Cache.expand_cache_key(:foo)
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end
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end
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def test_expand_cache_key_rails_cache_id_should_win_over_rails_app_version
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with_env("RAILS_CACHE_ID" => "c99", "RAILS_APP_VERSION" => "rails3") do
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assert_equal "c99/foo", ActiveSupport::Cache.expand_cache_key(:foo)
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end
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end
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def test_expand_cache_key_respond_to_cache_key
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key = +"foo"
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def key.cache_key
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:foo_key
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end
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assert_equal "foo_key", ActiveSupport::Cache.expand_cache_key(key)
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end
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def test_expand_cache_key_array_with_something_that_responds_to_cache_key
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key = +"foo"
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def key.cache_key
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:foo_key
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end
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assert_equal "foo_key", ActiveSupport::Cache.expand_cache_key([key])
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end
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def test_expand_cache_key_of_nil
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assert_equal "", ActiveSupport::Cache.expand_cache_key(nil)
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end
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def test_expand_cache_key_of_false
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assert_equal "false", ActiveSupport::Cache.expand_cache_key(false)
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end
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def test_expand_cache_key_of_true
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assert_equal "true", ActiveSupport::Cache.expand_cache_key(true)
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end
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def test_expand_cache_key_of_array_like_object
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assert_equal "foo/bar/baz", ActiveSupport::Cache.expand_cache_key(%w{foo bar baz}.to_enum)
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end
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private
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def with_env(kv)
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old_values = {}
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kv.each { |key, value| old_values[key], ENV[key] = ENV[key], value }
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yield
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ensure
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old_values.each { |key, value| ENV[key] = value }
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end
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end
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