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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 ```
113 lines
3.5 KiB
Ruby
113 lines
3.5 KiB
Ruby
# frozen_string_literal: true
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require "cases/helper"
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require "models/person"
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require "models/topic"
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require "pp"
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class NonExistentTable < ActiveRecord::Base; end
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class CoreTest < ActiveRecord::TestCase
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fixtures :topics
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def test_inspect_class
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assert_equal "ActiveRecord::Base", ActiveRecord::Base.inspect
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assert_equal "LoosePerson(abstract)", LoosePerson.inspect
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assert_match(/^Topic\(id: integer, title: string/, Topic.inspect)
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end
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def test_inspect_instance
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topic = topics(:first)
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assert_equal %(#<Topic id: 1, title: "The First Topic", author_name: "David", author_email_address: "david@loudthinking.com", written_on: "#{topic.written_on.to_s(:db)}", bonus_time: "#{topic.bonus_time.to_s(:db)}", last_read: "#{topic.last_read.to_s(:db)}", content: "Have a nice day", important: nil, approved: false, replies_count: 1, unique_replies_count: 0, parent_id: nil, parent_title: nil, type: nil, group: nil, created_at: "#{topic.created_at.to_s(:db)}", updated_at: "#{topic.updated_at.to_s(:db)}">), topic.inspect
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end
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def test_inspect_new_instance
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assert_match(/Topic id: nil/, Topic.new.inspect)
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end
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def test_inspect_limited_select_instance
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assert_equal %(#<Topic id: 1>), Topic.all.merge!(select: "id", where: "id = 1").first.inspect
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assert_equal %(#<Topic id: 1, title: "The First Topic">), Topic.all.merge!(select: "id, title", where: "id = 1").first.inspect
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end
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def test_inspect_class_without_table
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assert_equal "NonExistentTable(Table doesn't exist)", NonExistentTable.inspect
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end
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def test_pretty_print_new
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topic = Topic.new
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actual = +""
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PP.pp(topic, StringIO.new(actual))
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expected = <<~PRETTY
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#<Topic:0xXXXXXX
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id: nil,
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title: nil,
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author_name: nil,
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author_email_address: "test@test.com",
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written_on: nil,
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bonus_time: nil,
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last_read: nil,
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content: nil,
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important: nil,
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approved: true,
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replies_count: 0,
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unique_replies_count: 0,
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parent_id: nil,
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parent_title: nil,
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type: nil,
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group: nil,
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created_at: nil,
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updated_at: nil>
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PRETTY
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assert actual.start_with?(expected.split("XXXXXX").first)
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assert actual.end_with?(expected.split("XXXXXX").last)
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end
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def test_pretty_print_persisted
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topic = topics(:first)
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actual = +""
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PP.pp(topic, StringIO.new(actual))
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expected = <<~PRETTY
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#<Topic:0x\\w+
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id: 1,
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title: "The First Topic",
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author_name: "David",
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author_email_address: "david@loudthinking.com",
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written_on: 2003-07-16 14:28:11 UTC,
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bonus_time: 2000-01-01 14:28:00 UTC,
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last_read: Thu, 15 Apr 2004,
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content: "Have a nice day",
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important: nil,
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approved: false,
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replies_count: 1,
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unique_replies_count: 0,
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parent_id: nil,
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parent_title: nil,
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type: nil,
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group: nil,
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created_at: [^,]+,
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updated_at: [^,>]+>
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PRETTY
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assert_match(/\A#{expected}\z/, actual)
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end
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def test_pretty_print_uninitialized
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topic = Topic.allocate
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actual = +""
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PP.pp(topic, StringIO.new(actual))
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expected = "#<Topic:XXXXXX not initialized>\n"
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assert actual.start_with?(expected.split("XXXXXX").first)
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assert actual.end_with?(expected.split("XXXXXX").last)
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end
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def test_pretty_print_overridden_by_inspect
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subtopic = Class.new(Topic) do
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def inspect
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"inspecting topic"
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end
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end
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actual = +""
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PP.pp(subtopic.new, StringIO.new(actual))
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assert_equal "inspecting topic\n", actual
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end
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end
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