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|
# frozen_string_literal: false
require 'test/unit'
require 'irb'
module TestIRB
class TestHistory < Test::Unit::TestCase
def setup
IRB.conf[:RC_NAME_GENERATOR] = nil
end
def teardown
IRB.conf[:RC_NAME_GENERATOR] = nil
end
def test_history_save_1
result_output, result_history_file = launch_irb_with_irbrc_and_irb_history(<<~IRBRC, <<~IRB_HISTORY) do |stdin|
IRB.conf[:USE_READLINE] = true
IRB.conf[:SAVE_HISTORY] = 1
IRBRC
1
2
3
4
IRB_HISTORY
stdin.write("5\nexit\n")
end
assert_equal(<<~HISTORY_FILE, result_history_file)
exit
HISTORY_FILE
end
def test_history_save_100
result_output, result_history_file = launch_irb_with_irbrc_and_irb_history(<<~IRBRC, <<~IRB_HISTORY) do |stdin|
IRB.conf[:USE_READLINE] = true
IRB.conf[:SAVE_HISTORY] = 100
IRBRC
1
2
3
4
IRB_HISTORY
stdin.write("5\nexit\n")
end
assert_equal(<<~HISTORY_FILE, result_history_file)
1
2
3
4
5
exit
HISTORY_FILE
end
def test_history_save_bignum
result_output, result_history_file = launch_irb_with_irbrc_and_irb_history(<<~IRBRC, <<~IRB_HISTORY) do |stdin|
IRB.conf[:USE_READLINE] = true
IRB.conf[:SAVE_HISTORY] = 10 ** 19
IRBRC
1
2
3
4
IRB_HISTORY
stdin.write("5\nexit\n")
end
assert_equal(<<~HISTORY_FILE, result_history_file)
1
2
3
4
5
exit
HISTORY_FILE
end
def test_history_save_minus_as_infinity
result_output, result_history_file = launch_irb_with_irbrc_and_irb_history(<<~IRBRC, <<~IRB_HISTORY) do |stdin|
IRB.conf[:USE_READLINE] = true
IRB.conf[:SAVE_HISTORY] = -1 # infinity
IRBRC
1
2
3
4
IRB_HISTORY
stdin.write("5\nexit\n")
end
assert_equal(<<~HISTORY_FILE, result_history_file)
1
2
3
4
5
exit
HISTORY_FILE
end
private
def launch_irb_with_irbrc_and_irb_history(irbrc, irb_history)
result = nil
result_history = nil
backup_irbrc = ENV.delete("IRBRC")
backup_home = ENV["HOME"]
Dir.mktmpdir("test_irb_history_#{$$}") do |tmpdir|
ENV["HOME"] = tmpdir
open(IRB.rc_file, "w") do |f|
f.write(irbrc)
end
open(IRB.rc_file("_history"), "w") do |f|
f.write(irb_history)
end
with_temp_stdio do |stdin, stdout|
replace_stdio(stdin.path, stdout.path) do
bundle_exec = ENV.key?('BUNDLE_GEMFILE') ? ['-rbundler/setup'] : []
cmds = %W[ruby] + bundle_exec + %W[-W0 -rirb -e 'IRB.start(__FILE__)']
yield(stdin, stdout)
stdin.close
system(cmds.join(' '))
stdout.flush
result = stdout.read
stdout.close
end
end
open(IRB.rc_file("_history"), "r") do |f|
result_history = f.read
end
end
[result, result_history]
ensure
ENV["HOME"] = backup_home
ENV["IRBRC"] = backup_irbrc
end
def with_temp_stdio
Tempfile.create("test_readline_stdin") do |stdin|
Tempfile.create("test_readline_stdout") do |stdout|
yield stdin, stdout
if /mswin|mingw/ =~ RUBY_PLATFORM
# needed since readline holds refs to tempfiles, can't delete on Windows
#Readline.input = STDIN
#Readline.output = STDOUT
end
end
end
end
def replace_stdio(stdin_path, stdout_path)
open(stdin_path, "r") do |stdin|
open(stdout_path, "w") do |stdout|
orig_stdin = STDIN.dup
orig_stdout = STDOUT.dup
orig_stderr = STDERR.dup
STDIN.reopen(stdin)
STDOUT.reopen(stdout)
STDERR.reopen(stdout)
begin
#Readline.input = STDIN
#Readline.output = STDOUT
yield
ensure
STDERR.reopen(orig_stderr)
STDIN.reopen(orig_stdin)
STDOUT.reopen(orig_stdout)
orig_stdin.close
orig_stdout.close
orig_stderr.close
end
end
end
end
end
end
|
