зеркало из https://github.com/github/ruby.git
174 строки
3.6 KiB
Ruby
174 строки
3.6 KiB
Ruby
# frozen_string_literal: false
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require 'test/unit'
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require 'irb'
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require 'irb/ext/save-history'
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require 'readline'
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module TestIRB
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class TestHistory < Test::Unit::TestCase
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def setup
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IRB.conf[:RC_NAME_GENERATOR] = nil
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end
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def teardown
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IRB.conf[:RC_NAME_GENERATOR] = nil
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end
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class TestInputMethod < ::IRB::InputMethod
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HISTORY = Array.new
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include IRB::HistorySavingAbility
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attr_reader :list, :line_no
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def initialize(list = [])
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super("test")
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@line_no = 0
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@list = list
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end
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def gets
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@list[@line_no]&.tap {@line_no += 1}
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end
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def eof?
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@line_no >= @list.size
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end
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def encoding
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Encoding.default_external
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end
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def reset
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@line_no = 0
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end
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def winsize
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[10, 20]
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end
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end
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def test_history_save_1
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omit "Skip Editline" if /EditLine/n.match(Readline::VERSION)
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IRB.conf[:SAVE_HISTORY] = 1
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assert_history(<<~EXPECTED_HISTORY, <<~INITIAL_HISTORY, <<~INPUT)
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exit
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EXPECTED_HISTORY
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1
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2
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3
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4
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INITIAL_HISTORY
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5
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exit
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INPUT
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end
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def test_history_save_100
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omit "Skip Editline" if /EditLine/n.match(Readline::VERSION)
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IRB.conf[:SAVE_HISTORY] = 100
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assert_history(<<~EXPECTED_HISTORY, <<~INITIAL_HISTORY, <<~INPUT)
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1
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2
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3
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4
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5
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exit
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EXPECTED_HISTORY
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1
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2
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3
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4
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INITIAL_HISTORY
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5
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exit
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INPUT
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end
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def test_history_save_bignum
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omit "Skip Editline" if /EditLine/n.match(Readline::VERSION)
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IRB.conf[:SAVE_HISTORY] = 10 ** 19
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assert_history(<<~EXPECTED_HISTORY, <<~INITIAL_HISTORY, <<~INPUT)
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1
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2
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3
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4
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5
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exit
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EXPECTED_HISTORY
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1
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2
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3
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4
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INITIAL_HISTORY
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5
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exit
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INPUT
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end
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def test_history_save_minus_as_infinity
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omit "Skip Editline" if /EditLine/n.match(Readline::VERSION)
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IRB.conf[:SAVE_HISTORY] = -1 # infinity
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assert_history(<<~EXPECTED_HISTORY, <<~INITIAL_HISTORY, <<~INPUT)
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1
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2
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3
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4
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5
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exit
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EXPECTED_HISTORY
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1
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2
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3
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4
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INITIAL_HISTORY
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5
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exit
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INPUT
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end
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private
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def assert_history(expected_history, initial_irb_history, input)
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backup_verbose, $VERBOSE = $VERBOSE, nil
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backup_home = ENV["HOME"]
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IRB.conf[:LC_MESSAGES] = IRB::Locale.new
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actual_history = nil
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Dir.mktmpdir("test_irb_history_#{$$}") do |tmpdir|
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ENV["HOME"] = tmpdir
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open(IRB.rc_file("_history"), "w") do |f|
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f.write(initial_irb_history)
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end
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io = TestInputMethod.new
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io.class::HISTORY.clear
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io.load_history
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io.class::HISTORY.concat(input.split)
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io.save_history
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io.load_history
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open(IRB.rc_file("_history"), "r") do |f|
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actual_history = f.read
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end
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end
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assert_equal(expected_history, actual_history, <<~MESSAGE)
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expected:
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#{expected_history}
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but actual:
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#{actual_history}
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MESSAGE
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ensure
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$VERBOSE = backup_verbose
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ENV["HOME"] = backup_home
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end
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def with_temp_stdio
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Tempfile.create("test_readline_stdin") do |stdin|
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Tempfile.create("test_readline_stdout") do |stdout|
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yield stdin, stdout
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end
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end
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end
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end
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end if not RUBY_PLATFORM.match?(/solaris|mswin|mingw/i)
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