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# frozen_string_literal: false
require 'irb/color'
require 'stringio'
require_relative "helper"
module TestIRB
class ColorTest < TestCase
CLEAR = "\e[0m"
BOLD = "\e[1m"
UNDERLINE = "\e[4m"
REVERSE = "\e[7m"
RED = "\e[31m"
GREEN = "\e[32m"
YELLOW = "\e[33m"
BLUE = "\e[34m"
MAGENTA = "\e[35m"
CYAN = "\e[36m"
def setup
super
if IRB.respond_to?(:conf)
@colorize, IRB.conf[:USE_COLORIZE] = IRB.conf[:USE_COLORIZE], true
end
end
def teardown
if instance_variable_defined?(:@colorize)
IRB.conf[:USE_COLORIZE] = @colorize
end
super
end
def test_colorize
text = "text"
{
[:BOLD] => "#{BOLD}#{text}#{CLEAR}",
[:UNDERLINE] => "#{UNDERLINE}#{text}#{CLEAR}",
[:REVERSE] => "#{REVERSE}#{text}#{CLEAR}",
[:RED] => "#{RED}#{text}#{CLEAR}",
[:GREEN] => "#{GREEN}#{text}#{CLEAR}",
[:YELLOW] => "#{YELLOW}#{text}#{CLEAR}",
[:BLUE] => "#{BLUE}#{text}#{CLEAR}",
[:MAGENTA] => "#{MAGENTA}#{text}#{CLEAR}",
[:CYAN] => "#{CYAN}#{text}#{CLEAR}",
}.each do |seq, result|
assert_equal_with_term(result, text, seq: seq)
assert_equal_with_term(text, text, seq: seq, tty: false)
assert_equal_with_term(text, text, seq: seq, colorable: false)
assert_equal_with_term(result, text, seq: seq, tty: false, colorable: true)
end
end
def test_colorize_code
# Common behaviors. Warn parser error, but do not warn compile error.
tests = {
"1" => "#{BLUE}#{BOLD}1#{CLEAR}",
"2.3" => "#{MAGENTA}#{BOLD}2.3#{CLEAR}",
"7r" => "#{BLUE}#{BOLD}7r#{CLEAR}",
"8i" => "#{BLUE}#{BOLD}8i#{CLEAR}",
"['foo', :bar]" => "[#{RED}#{BOLD}'#{CLEAR}#{RED}foo#{CLEAR}#{RED}#{BOLD}'#{CLEAR}, #{YELLOW}:#{CLEAR}#{YELLOW}bar#{CLEAR}]",
"class A; end" => "#{GREEN}class#{CLEAR} #{BLUE}#{BOLD}#{UNDERLINE}A#{CLEAR}; #{GREEN}end#{CLEAR}",
"def self.foo; bar; end" => "#{GREEN}def#{CLEAR} #{CYAN}#{BOLD}self#{CLEAR}.#{BLUE}#{BOLD}foo#{CLEAR}; bar; #{GREEN}end#{CLEAR}",
'erb = ERB.new("a#{nil}b", trim_mode: "-")' => "erb = #{BLUE}#{BOLD}#{UNDERLINE}ERB#{CLEAR}.new(#{RED}#{BOLD}\"#{CLEAR}#{RED}a#{CLEAR}#{RED}\#{#{CLEAR}#{CYAN}#{BOLD}nil#{CLEAR}#{RED}}#{CLEAR}#{RED}b#{CLEAR}#{RED}#{BOLD}\"#{CLEAR}, #{MAGENTA}trim_mode:#{CLEAR} #{RED}#{BOLD}\"#{CLEAR}#{RED}-#{CLEAR}#{RED}#{BOLD}\"#{CLEAR})",
"# comment" => "#{BLUE}#{BOLD}# comment#{CLEAR}",
"def f;yield(hello);end" => "#{GREEN}def#{CLEAR} #{BLUE}#{BOLD}f#{CLEAR};#{GREEN}yield#{CLEAR}(hello);#{GREEN}end#{CLEAR}",
'"##@var]"' => "#{RED}#{BOLD}\"#{CLEAR}#{RED}\##{CLEAR}#{RED}\##{CLEAR}@var#{RED}]#{CLEAR}#{RED}#{BOLD}\"#{CLEAR}",
'"foo#{a} #{b}"' => "#{RED}#{BOLD}\"#{CLEAR}#{RED}foo#{CLEAR}#{RED}\#{#{CLEAR}a#{RED}}#{CLEAR}#{RED} #{CLEAR}#{RED}\#{#{CLEAR}b#{RED}}#{CLEAR}#{RED}#{BOLD}\"#{CLEAR}",
'/r#{e}g/' => "#{RED}#{BOLD}/#{CLEAR}#{RED}r#{CLEAR}#{RED}\#{#{CLEAR}e#{RED}}#{CLEAR}#{RED}g#{CLEAR}#{RED}#{BOLD}/#{CLEAR}",
"'a\nb'" => "#{RED}#{BOLD}'#{CLEAR}#{RED}a#{CLEAR}\n#{RED}b#{CLEAR}#{RED}#{BOLD}'#{CLEAR}",
"%[str]" => "#{RED}#{BOLD}%[#{CLEAR}#{RED}str#{CLEAR}#{RED}#{BOLD}]#{CLEAR}",
"%Q[str]" => "#{RED}#{BOLD}%Q[#{CLEAR}#{RED}str#{CLEAR}#{RED}#{BOLD}]#{CLEAR}",
"%q[str]" => "#{RED}#{BOLD}%q[#{CLEAR}#{RED}str#{CLEAR}#{RED}#{BOLD}]#{CLEAR}",
"%x[cmd]" => "#{RED}#{BOLD}%x[#{CLEAR}#{RED}cmd#{CLEAR}#{RED}#{BOLD}]#{CLEAR}",
"%r[reg]" => "#{RED}#{BOLD}%r[#{CLEAR}#{RED}reg#{CLEAR}#{RED}#{BOLD}]#{CLEAR}",
"%w[a b]" => "#{RED}#{BOLD}%w[#{CLEAR}#{RED}a#{CLEAR} #{RED}b#{CLEAR}#{RED}#{BOLD}]#{CLEAR}",
"%W[a b]" => "#{RED}#{BOLD}%W[#{CLEAR}#{RED}a#{CLEAR} #{RED}b#{CLEAR}#{RED}#{BOLD}]#{CLEAR}",
"%s[a b]" => "#{YELLOW}%s[#{CLEAR}#{YELLOW}a b#{CLEAR}#{YELLOW}]#{CLEAR}",
"%i[c d]" => "#{YELLOW}%i[#{CLEAR}#{YELLOW}c#{CLEAR}#{YELLOW} #{CLEAR}#{YELLOW}d#{CLEAR}#{YELLOW}]#{CLEAR}",
"%I[c d]" => "#{YELLOW}%I[#{CLEAR}#{YELLOW}c#{CLEAR}#{YELLOW} #{CLEAR}#{YELLOW}d#{CLEAR}#{YELLOW}]#{CLEAR}",
"{'a': 1}" => "{#{RED}#{BOLD}'#{CLEAR}#{RED}a#{CLEAR}#{RED}#{BOLD}':#{CLEAR} #{BLUE}#{BOLD}1#{CLEAR}}",
":Struct" => "#{YELLOW}:#{CLEAR}#{YELLOW}Struct#{CLEAR}",
'"#{}"' => "#{RED}#{BOLD}\"#{CLEAR}#{RED}\#{#{CLEAR}#{RED}}#{CLEAR}#{RED}#{BOLD}\"#{CLEAR}",
':"a#{}b"' => "#{YELLOW}:\"#{CLEAR}#{YELLOW}a#{CLEAR}#{YELLOW}\#{#{CLEAR}#{YELLOW}}#{CLEAR}#{YELLOW}b#{CLEAR}#{YELLOW}\"#{CLEAR}",
':"a#{ def b; end; \'c\' + "#{ :d }" }e"' => "#{YELLOW}:\"#{CLEAR}#{YELLOW}a#{CLEAR}#{YELLOW}\#{#{CLEAR} #{GREEN}def#{CLEAR} #{BLUE}#{BOLD}b#{CLEAR}; #{GREEN}end#{CLEAR}; #{RED}#{BOLD}'#{CLEAR}#{RED}c#{CLEAR}#{RED}#{BOLD}'#{CLEAR} + #{RED}#{BOLD}\"#{CLEAR}#{RED}\#{#{CLEAR} #{YELLOW}:#{CLEAR}#{YELLOW}d#{CLEAR} #{RED}}#{CLEAR}#{RED}#{BOLD}\"#{CLEAR} #{YELLOW}}#{CLEAR}#{YELLOW}e#{CLEAR}#{YELLOW}\"#{CLEAR}",
"[__FILE__, __LINE__, __ENCODING__]" => "[#{CYAN}#{BOLD}__FILE__#{CLEAR}, #{CYAN}#{BOLD}__LINE__#{CLEAR}, #{CYAN}#{BOLD}__ENCODING__#{CLEAR}]",
":self" => "#{YELLOW}:#{CLEAR}#{YELLOW}self#{CLEAR}",
":class" => "#{YELLOW}:#{CLEAR}#{YELLOW}class#{CLEAR}",
"[:end, 2]" => "[#{YELLOW}:#{CLEAR}#{YELLOW}end#{CLEAR}, #{BLUE}#{BOLD}2#{CLEAR}]",
"[:>, 3]" => "[#{YELLOW}:#{CLEAR}#{YELLOW}>#{CLEAR}, #{BLUE}#{BOLD}3#{CLEAR}]",
"[:`, 4]" => "[#{YELLOW}:#{CLEAR}#{YELLOW}`#{CLEAR}, #{BLUE}#{BOLD}4#{CLEAR}]",
":Hello ? world : nil" => "#{YELLOW}:#{CLEAR}#{YELLOW}Hello#{CLEAR} ? world : #{CYAN}#{BOLD}nil#{CLEAR}",
'raise "foo#{bar}baz"' => "raise #{RED}#{BOLD}\"#{CLEAR}#{RED}foo#{CLEAR}#{RED}\#{#{CLEAR}bar#{RED}}#{CLEAR}#{RED}baz#{CLEAR}#{RED}#{BOLD}\"#{CLEAR}",
'["#{obj.inspect}"]' => "[#{RED}#{BOLD}\"#{CLEAR}#{RED}\#{#{CLEAR}obj.inspect#{RED}}#{CLEAR}#{RED}#{BOLD}\"#{CLEAR}]",
'URI.parse "#{}"' => "#{BLUE}#{BOLD}#{UNDERLINE}URI#{CLEAR}.parse #{RED}#{BOLD}\"#{CLEAR}#{RED}\#{#{CLEAR}#{RED}}#{CLEAR}#{RED}#{BOLD}\"#{CLEAR}",
"begin\nrescue\nend" => "#{GREEN}begin#{CLEAR}\n#{GREEN}rescue#{CLEAR}\n#{GREEN}end#{CLEAR}",
"foo %w[bar]" => "foo #{RED}#{BOLD}%w[#{CLEAR}#{RED}bar#{CLEAR}#{RED}#{BOLD}]#{CLEAR}",
"foo %i[bar]" => "foo #{YELLOW}%i[#{CLEAR}#{YELLOW}bar#{CLEAR}#{YELLOW}]#{CLEAR}",
"foo :@bar, baz, :@@qux, :$quux" => "foo #{YELLOW}:#{CLEAR}#{YELLOW}@bar#{CLEAR}, baz, #{YELLOW}:#{CLEAR}#{YELLOW}@@qux#{CLEAR}, #{YELLOW}:#{CLEAR}#{YELLOW}$quux#{CLEAR}",
"`echo`" => "#{RED}#{BOLD}`#{CLEAR}#{RED}echo#{CLEAR}#{RED}#{BOLD}`#{CLEAR}",
"\t" => Reline::Unicode.escape_for_print("\t") == ' ' ? ' ' : "\t", # not ^I
"foo(*%W(bar))" => "foo(*#{RED}#{BOLD}%W(#{CLEAR}#{RED}bar#{CLEAR}#{RED}#{BOLD})#{CLEAR})",
"$stdout" => "#{GREEN}#{BOLD}$stdout#{CLEAR}",
"__END__" => "#{GREEN}__END__#{CLEAR}",
"foo\n__END__\nbar" => "foo\n#{GREEN}__END__#{CLEAR}\nbar",
"foo\n<<A\0\0bar\nA\nbaz" => "foo\n#{RED}<<A#{CLEAR}^@^@bar\n#{RED}A#{CLEAR}\nbaz",
"<<A+1\nA" => "#{RED}<<A#{CLEAR}+#{BLUE}#{BOLD}1#{CLEAR}\n#{RED}A#{CLEAR}",
}
tests.merge!({
"4.5.6" => "#{MAGENTA}#{BOLD}4.5#{CLEAR}#{RED}#{REVERSE}.6#{CLEAR}",
"\e[0m\n" => "#{RED}#{REVERSE}^[#{CLEAR}[#{BLUE}#{BOLD}0#{CLEAR}#{RED}#{REVERSE}m#{CLEAR}\n",
"<<EOS\nhere\nEOS" => "#{RED}<<EOS#{CLEAR}\n#{RED}here#{CLEAR}\n#{RED}EOS#{CLEAR}",
})
# specific to Ruby 3.0+
if Gem::Version.new(RUBY_VERSION) >= Gem::Version.new('3.0.0')
tests.merge!({
"[1]]]\u0013" => "[#{BLUE}#{BOLD}1#{CLEAR}]#{RED}#{REVERSE}]#{CLEAR}#{RED}#{REVERSE}]#{CLEAR}#{RED}#{REVERSE}^S#{CLEAR}",
})
tests.merge!({
"def req(true) end" => "#{GREEN}def#{CLEAR} #{BLUE}#{BOLD}req#{CLEAR}(#{RED}#{REVERSE}true#{CLEAR}) #{RED}#{REVERSE}end#{CLEAR}",
"nil = 1" => "#{RED}#{REVERSE}nil#{CLEAR} = #{BLUE}#{BOLD}1#{CLEAR}",
"alias $x $1" => "#{GREEN}alias#{CLEAR} #{GREEN}#{BOLD}$x#{CLEAR} #{RED}#{REVERSE}$1#{CLEAR}",
"class bad; end" => "#{GREEN}class#{CLEAR} #{RED}#{REVERSE}bad#{CLEAR}; #{GREEN}end#{CLEAR}",
"def req(@a) end" => "#{GREEN}def#{CLEAR} #{BLUE}#{BOLD}req#{CLEAR}(#{RED}#{REVERSE}@a#{CLEAR}) #{GREEN}end#{CLEAR}",
})
if Gem::Version.new(RUBY_VERSION) >= Gem::Version.new('3.2.0')
tests.merge!({
"def req(true) end" => "#{GREEN}def#{CLEAR} #{BLUE}#{BOLD}req#{CLEAR}(#{RED}#{REVERSE}true#{CLEAR}#{RED}#{REVERSE})#{CLEAR} #{RED}#{REVERSE}end#{CLEAR}",
})
end
else
tests.merge!({
"[1]]]\u0013" => "[#{BLUE}#{BOLD}1#{CLEAR}]#{RED}#{REVERSE}]#{CLEAR}]^S",
"def req(true) end" => "#{GREEN}def#{CLEAR} #{BLUE}#{BOLD}req#{CLEAR}(#{RED}#{REVERSE}true#{CLEAR}) end",
"nil = 1" => "#{CYAN}#{BOLD}nil#{CLEAR} = #{BLUE}#{BOLD}1#{CLEAR}",
"alias $x $1" => "#{GREEN}alias#{CLEAR} #{GREEN}#{BOLD}$x#{CLEAR} $1",
"class bad; end" => "#{GREEN}class#{CLEAR} bad; #{GREEN}end#{CLEAR}",
"def req(@a) end" => "#{GREEN}def#{CLEAR} #{BLUE}#{BOLD}req#{CLEAR}(@a) #{GREEN}end#{CLEAR}",
})
end
tests.each do |code, result|
assert_equal_with_term(result, code, complete: true)
assert_equal_with_term(result, code, complete: false)
assert_equal_with_term(code, code, complete: true, tty: false)
assert_equal_with_term(code, code, complete: false, tty: false)
assert_equal_with_term(code, code, complete: true, colorable: false)
assert_equal_with_term(code, code, complete: false, colorable: false)
assert_equal_with_term(result, code, complete: true, tty: false, colorable: true)
assert_equal_with_term(result, code, complete: false, tty: false, colorable: true)
end
end
def test_colorize_code_with_local_variables
code = "a /(b +1)/i"
result_without_lvars = "a #{RED}#{BOLD}/#{CLEAR}#{RED}(b +1)#{CLEAR}#{RED}#{BOLD}/i#{CLEAR}"
result_with_lvar = "a /(b #{BLUE}#{BOLD}+1#{CLEAR})/i"
result_with_lvars = "a /(b +#{BLUE}#{BOLD}1#{CLEAR})/i"
assert_equal_with_term(result_without_lvars, code)
assert_equal_with_term(result_with_lvar, code, local_variables: ['a'])
assert_equal_with_term(result_with_lvars, code, local_variables: ['a', 'b'])
end
def test_colorize_code_complete_true
# `complete: true` behaviors. Warn end-of-file.
{
"'foo' + 'bar" => "#{RED}#{BOLD}'#{CLEAR}#{RED}foo#{CLEAR}#{RED}#{BOLD}'#{CLEAR} + #{RED}#{BOLD}'#{CLEAR}#{RED}#{REVERSE}bar#{CLEAR}",
"('foo" => "(#{RED}#{BOLD}'#{CLEAR}#{RED}#{REVERSE}foo#{CLEAR}",
}.each do |code, result|
assert_equal_with_term(result, code, complete: true)
assert_equal_with_term(code, code, complete: true, tty: false)
assert_equal_with_term(code, code, complete: true, colorable: false)
assert_equal_with_term(result, code, complete: true, tty: false, colorable: true)
end
end
def test_colorize_code_complete_false
# `complete: false` behaviors. Do not warn end-of-file.
{
"'foo' + 'bar" => "#{RED}#{BOLD}'#{CLEAR}#{RED}foo#{CLEAR}#{RED}#{BOLD}'#{CLEAR} + #{RED}#{BOLD}'#{CLEAR}#{RED}bar#{CLEAR}",
"('foo" => "(#{RED}#{BOLD}'#{CLEAR}#{RED}foo#{CLEAR}",
}.each do |code, result|
assert_equal_with_term(result, code, complete: false)
assert_equal_with_term(code, code, complete: false, tty: false)
assert_equal_with_term(code, code, complete: false, colorable: false)
assert_equal_with_term(result, code, complete: false, tty: false, colorable: true)
end
end
def test_inspect_colorable
{
1 => true,
2.3 => true,
['foo', :bar] => true,
(a = []; a << a; a) => false,
(h = {}; h[h] = h; h) => false,
{ a: 4 } => true,
/reg/ => true,
(1..3) => true,
Object.new => false,
Struct => true,
Test => true,
Struct.new(:a) => false,
Struct.new(:a).new(1) => false,
}.each do |object, result|
assert_equal(result, IRB::Color.inspect_colorable?(object), "Case: inspect_colorable?(#{object.inspect})")
end
end
private
def with_term(tty: true)
stdout = $stdout
io = StringIO.new
def io.tty?; true; end if tty
$stdout = io
env = ENV.to_h.dup
ENV['TERM'] = 'xterm-256color'
yield
ensure
$stdout = stdout
ENV.replace(env) if env
end
def assert_equal_with_term(result, code, seq: nil, tty: true, **opts)
actual = with_term(tty: tty) do
if seq
IRB::Color.colorize(code, seq, **opts)
else
IRB::Color.colorize_code(code, **opts)
end
end
message = -> {
args = [code.dump]
args << seq.inspect if seq
opts.each {|kwd, val| args << "#{kwd}: #{val}"}
"Case: colorize#{seq ? "" : "_code"}(#{args.join(', ')})\nResult: #{humanized_literal(actual)}"
}
assert_equal(result, actual, message)
end
def humanized_literal(str)
str
.gsub(CLEAR, '@@@{CLEAR}')
.gsub(BOLD, '@@@{BOLD}')
.gsub(UNDERLINE, '@@@{UNDERLINE}')
.gsub(REVERSE, '@@@{REVERSE}')
.gsub(RED, '@@@{RED}')
.gsub(GREEN, '@@@{GREEN}')
.gsub(YELLOW, '@@@{YELLOW}')
.gsub(BLUE, '@@@{BLUE}')
.gsub(MAGENTA, '@@@{MAGENTA}')
.gsub(CYAN, '@@@{CYAN}')
.dump.gsub(/@@@/, '#')
end
end
end
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