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ruby--ruby/test/ruby/test_syntax.rb
Nobuyoshi Nakada 4e038a7e64
Revert "parse.y: Deprecate flip-flops"
This reverts commit bae638ad5b.

[Feature #5400]
2019-07-11 14:52:02 +09:00

1441 lines
42 KiB
Ruby

# frozen_string_literal: false
require 'test/unit'
class TestSyntax < Test::Unit::TestCase
using Module.new {
refine(Object) do
def `(s) #`
s
end
end
}
def assert_syntax_files(test)
srcdir = File.expand_path("../../..", __FILE__)
srcdir = File.join(srcdir, test)
assert_separately(%W[--disable-gem - #{srcdir}],
__FILE__, __LINE__, <<-'eom', timeout: Float::INFINITY)
dir = ARGV.shift
for script in Dir["#{dir}/**/*.rb"].sort
assert_valid_syntax(IO::read(script), script)
end
eom
end
def test_syntax_lib; assert_syntax_files("lib"); end
def test_syntax_sample; assert_syntax_files("sample"); end
def test_syntax_ext; assert_syntax_files("ext"); end
def test_syntax_test; assert_syntax_files("test"); end
def test_defined_empty_argument
bug8220 = '[ruby-core:53999] [Bug #8220]'
assert_ruby_status(%w[--disable-gem], 'puts defined? ()', bug8220)
end
def test_must_ascii_compatible
require 'tempfile'
f = Tempfile.new("must_ac_")
Encoding.list.each do |enc|
next unless enc.ascii_compatible?
make_tmpsrc(f, "# -*- coding: #{enc.name} -*-")
assert_nothing_raised(ArgumentError, enc.name) {load(f.path)}
end
Encoding.list.each do |enc|
next if enc.ascii_compatible?
make_tmpsrc(f, "# -*- coding: #{enc.name} -*-")
assert_raise(ArgumentError, enc.name) {load(f.path)}
end
ensure
f&.close!
end
def test_script_lines
require 'tempfile'
f = Tempfile.new("bug4361_")
bug4361 = '[ruby-dev:43168]'
with_script_lines do |debug_lines|
Encoding.list.each do |enc|
next unless enc.ascii_compatible?
make_tmpsrc(f, "# -*- coding: #{enc.name} -*-\n#----------------")
load(f.path)
assert_equal([f.path], debug_lines.keys)
assert_equal([enc, enc], debug_lines[f.path].map(&:encoding), bug4361)
end
end
ensure
f&.close!
end
def test_newline_in_block_parameters
bug = '[ruby-dev:45292]'
["", "a", "a, b"].product(["", ";x", [";", "x"]]) do |params|
params = ["|", *params, "|"].join("\n")
assert_valid_syntax("1.times{#{params}}", __FILE__, "#{bug} #{params.inspect}")
end
end
tap do |_,
bug6115 = '[ruby-dev:45308]',
blockcall = '["elem"].each_with_object [] do end',
methods = [['map', 'no'], ['inject([])', 'with']],
blocks = [['do end', 'do'], ['{}', 'brace']],
*|
[%w'. dot', %w':: colon'].product(methods, blocks) do |(c, n1), (m, n2), (b, n3)|
m = m.tr_s('()', ' ').strip if n2 == 'do'
name = "test_#{n3}_block_after_blockcall_#{n1}_#{n2}_arg"
code = "#{blockcall}#{c}#{m} #{b}"
define_method(name) {assert_valid_syntax(code, bug6115)}
end
end
def test_do_block_in_cmdarg
bug9726 = '[ruby-core:61950] [Bug #9726]'
assert_valid_syntax("tap (proc do end)", __FILE__, bug9726)
end
def test_methodref_literal
assert_separately [], <<-EOS
eval 'nil.:|;1'
1000.times{eval 'nil.:|;1'}
EOS
end
def test_normal_argument
assert_valid_syntax('def foo(x) end')
assert_syntax_error('def foo(X) end', /constant/)
assert_syntax_error('def foo(@x) end', /instance variable/)
assert_syntax_error('def foo(@@x) end', /class variable/)
end
def test_optional_argument
assert_valid_syntax('def foo(x=nil) end')
assert_syntax_error('def foo(X=nil) end', /constant/)
assert_syntax_error('def foo(@x=nil) end', /instance variable/)
assert_syntax_error('def foo(@@x=nil) end', /class variable/)
end
def test_keyword_rest
bug5989 = '[ruby-core:42455]'
assert_valid_syntax("def kwrest_test(**a) a; end", __FILE__, bug5989)
assert_valid_syntax("def kwrest_test2(**a, &b) end", __FILE__, bug5989)
o = Object.new
def o.kw(**a) a end
assert_equal({}, o.kw, bug5989)
assert_equal({foo: 1}, o.kw(foo: 1), bug5989)
assert_equal({foo: 1, bar: 2}, o.kw(foo: 1, bar: 2), bug5989)
EnvUtil.under_gc_stress do
eval("def o.m(k: 0) k end")
end
assert_equal(42, o.m(k: 42), '[ruby-core:45744]')
bug7922 = '[ruby-core:52744] [Bug #7922]'
def o.bug7922(**) end
assert_nothing_raised(ArgumentError, bug7922) {o.bug7922(foo: 42)}
end
class KW2
def kw(k1: 1, k2: 2) [k1, k2] end
end
def test_keyword_splat
assert_valid_syntax("foo(**h)", __FILE__)
o = KW2.new
h = {k1: 11, k2: 12}
assert_equal([11, 12], o.kw(**h))
assert_equal([11, 12], o.kw(k2: 22, **h))
assert_equal([11, 22], o.kw(**h, **{k2: 22}))
assert_equal([11, 12], o.kw(**{k2: 22}, **h))
end
def test_keyword_duplicated_splat
bug10315 = '[ruby-core:65368] [Bug #10315]'
o = KW2.new
assert_equal([23, 2], o.kw(**{k1: 22}, **{k1: 23}), bug10315)
h = {k3: 31}
assert_raise(ArgumentError) {o.kw(**h)}
h = {"k1"=>11, k2: 12}
assert_raise(TypeError) {o.kw(**h)}
end
def test_keyword_duplicated
bug10315 = '[ruby-core:65625] [Bug #10315]'
a = []
def a.add(x) push(x); x; end
def a.f(k:) k; end
a.clear
r = nil
assert_warn(/duplicated/) {r = eval("a.f(k: a.add(1), k: a.add(2))")}
assert_equal(2, r)
assert_equal([1, 2], a, bug10315)
a.clear
r = nil
assert_warn(/duplicated/) {r = eval("a.f({k: a.add(1), k: a.add(2)})")}
assert_equal(2, r)
assert_equal([1, 2], a, bug10315)
end
def test_keyword_empty_splat
assert_separately([], "#{<<-"begin;"}\n#{<<-'end;'}")
begin;
bug10719 = '[ruby-core:67446] [Bug #10719]'
assert_valid_syntax("foo(a: 1, **{})", bug10719)
end;
assert_separately([], "#{<<-"begin;"}\n#{<<-'end;'}")
begin;
bug13756 = '[ruby-core:82113] [Bug #13756]'
assert_valid_syntax("defined? foo(**{})", bug13756)
end;
assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}")
begin;
bug15271 = '[ruby-core:89648] [Bug #15271]'
assert_valid_syntax("a **{}", bug15271)
end;
end
def test_keyword_self_reference
bug9593 = '[ruby-core:61299] [Bug #9593]'
o = Object.new
assert_warn(/circular argument reference - var/) do
o.instance_eval("def foo(var: defined?(var)) var end")
end
assert_equal(42, o.foo(var: 42))
assert_equal("local-variable", o.foo, bug9593)
o = Object.new
assert_warn(/circular argument reference - var/) do
o.instance_eval("def foo(var: var) var end")
end
assert_nil(o.foo, bug9593)
o = Object.new
assert_warn(/circular argument reference - var/) do
o.instance_eval("def foo(var: bar(var)) var end")
end
o = Object.new
assert_warn(/circular argument reference - var/) do
o.instance_eval("def foo(var: bar {var}) var end")
end
o = Object.new
assert_warn("") do
o.instance_eval("def foo(var: bar {|var| var}) var end")
end
o = Object.new
assert_warn("") do
o.instance_eval("def foo(var: def bar(var) var; end) var end")
end
o = Object.new
assert_warn("") do
o.instance_eval("proc {|var: 1| var}")
end
end
def test_keyword_invalid_name
bug11663 = '[ruby-core:71356] [Bug #11663]'
o = o = Object.new
assert_syntax_error('def o.foo(arg1?:) end', /arg1\?/, bug11663)
assert_syntax_error('def o.foo(arg1?:, arg2:) end', /arg1\?/, bug11663)
assert_syntax_error('proc {|arg1?:|}', /arg1\?/, bug11663)
assert_syntax_error('proc {|arg1?:, arg2:|}', /arg1\?/, bug11663)
bug10545 = '[ruby-dev:48742] [Bug #10545]'
assert_syntax_error('def o.foo(FOO: a) end', /constant/, bug10545)
assert_syntax_error('def o.foo(@foo: a) end', /instance variable/)
assert_syntax_error('def o.foo(@@foo: a) end', /class variable/)
end
def test_optional_self_reference
bug9593 = '[ruby-core:61299] [Bug #9593]'
o = Object.new
assert_warn(/circular argument reference - var/) do
o.instance_eval("def foo(var = defined?(var)) var end")
end
assert_equal(42, o.foo(42))
assert_equal("local-variable", o.foo, bug9593)
o = Object.new
assert_warn(/circular argument reference - var/) do
o.instance_eval("def foo(var = var) var end")
end
assert_nil(o.foo, bug9593)
o = Object.new
assert_warn(/circular argument reference - var/) do
o.instance_eval("def foo(var = bar(var)) var end")
end
o = Object.new
assert_warn(/circular argument reference - var/) do
o.instance_eval("def foo(var = bar {var}) var end")
end
o = Object.new
assert_warn(/circular argument reference - var/) do
o.instance_eval("def foo(var = (def bar;end; var)) var end")
end
o = Object.new
assert_warn(/circular argument reference - var/) do
o.instance_eval("def foo(var = (def self.bar;end; var)) var end")
end
o = Object.new
assert_warn("") do
o.instance_eval("def foo(var = bar {|var| var}) var end")
end
o = Object.new
assert_warn("") do
o.instance_eval("def foo(var = def bar(var) var; end) var end")
end
o = Object.new
assert_warn("") do
o.instance_eval("proc {|var = 1| var}")
end
end
def test_warn_grouped_expression
bug5214 = '[ruby-core:39050]'
assert_warning("", bug5214) do
assert_valid_syntax("foo \\\n(\n true)", "test", verbose: true)
end
end
def test_warn_unreachable
assert_warning("test:3: warning: statement not reached\n") do
code = "loop do\n" "break\n" "foo\n" "end"
assert_valid_syntax(code, "test", verbose: true)
end
end
def test_warn_balanced
warning = <<WARN
test:1: warning: `%s' after local variable or literal is interpreted as binary operator
test:1: warning: even though it seems like %s
WARN
[
[:**, "argument prefix"],
[:*, "argument prefix"],
[:<<, "here document"],
[:&, "argument prefix"],
[:+, "unary operator"],
[:-, "unary operator"],
[:/, "regexp literal"],
[:%, "string literal"],
].each do |op, syn|
all_assertions do |a|
["puts 1 #{op}0", "puts :a #{op}0", "m = 1; puts m #{op}0"].each do |src|
a.for(src) do
assert_warning(warning % [op, syn], src) do
assert_valid_syntax(src, "test", verbose: true)
end
end
end
end
end
end
def test_cmd_symbol_after_keyword
bug6347 = '[ruby-dev:45563]'
assert_not_label(:foo, 'if true then not_label:foo end', bug6347)
assert_not_label(:foo, 'if false; else not_label:foo end', bug6347)
assert_not_label(:foo, 'begin not_label:foo end', bug6347)
assert_not_label(:foo, 'begin ensure not_label:foo end', bug6347)
end
def test_cmd_symbol_in_string
bug6347 = '[ruby-dev:45563]'
assert_not_label(:foo, '"#{not_label:foo}"', bug6347)
end
def test_cmd_symbol_singleton_class
bug6347 = '[ruby-dev:45563]'
@not_label = self
assert_not_label(:foo, 'class << not_label:foo; end', bug6347)
end
def test_cmd_symbol_superclass
bug6347 = '[ruby-dev:45563]'
@not_label = Object
assert_not_label(:foo, 'class Foo < not_label:foo; end', bug6347)
end
def test_no_label_with_percent
assert_syntax_error('{%"a": 1}', /unexpected ':'/)
assert_syntax_error("{%'a': 1}", /unexpected ':'/)
assert_syntax_error('{%Q"a": 1}', /unexpected ':'/)
assert_syntax_error("{%Q'a': 1}", /unexpected ':'/)
assert_syntax_error('{%q"a": 1}', /unexpected ':'/)
assert_syntax_error("{%q'a': 1}", /unexpected ':'/)
end
def test_block_after_cond
bug10653 = '[ruby-dev:48790] [Bug #10653]'
assert_valid_syntax("false ? raise {} : tap {}", bug10653)
assert_valid_syntax("false ? raise do end : tap do end", bug10653)
end
def test_paren_after_label
bug11456 = '[ruby-dev:49221] [Bug #11456]'
assert_valid_syntax("{foo: (1 rescue 0)}", bug11456)
assert_valid_syntax("{foo: /=/}", bug11456)
end
def test_percent_string_after_label
bug11812 = '[ruby-core:72084]'
assert_valid_syntax('{label:%w(*)}', bug11812)
assert_valid_syntax('{label: %w(*)}', bug11812)
end
def test_heredoc_after_label
bug11849 = '[ruby-core:72396] [Bug #11849]'
assert_valid_syntax("{label:<<DOC\n""DOC\n""}", bug11849)
assert_valid_syntax("{label:<<-DOC\n""DOC\n""}", bug11849)
assert_valid_syntax("{label:<<~DOC\n""DOC\n""}", bug11849)
assert_valid_syntax("{label: <<DOC\n""DOC\n""}", bug11849)
assert_valid_syntax("{label: <<-DOC\n""DOC\n""}", bug11849)
assert_valid_syntax("{label: <<~DOC\n""DOC\n""}", bug11849)
end
def test_cmdarg_kwarg_lvar_clashing_method
bug12073 = '[ruby-core:73816] [Bug#12073]'
a = a = 1
assert_valid_syntax("a b: 1")
assert_valid_syntax("a = 1; a b: 1", bug12073)
end
def test_duplicated_arg
assert_syntax_error("def foo(a, a) end", /duplicated argument name/)
assert_valid_syntax("def foo(_, _) end")
(obj = Object.new).instance_eval("def foo(_, x, _) x end")
assert_equal(2, obj.foo(1, 2, 3))
end
def test_duplicated_rest
assert_syntax_error("def foo(a, *a) end", /duplicated argument name/)
assert_valid_syntax("def foo(_, *_) end")
(obj = Object.new).instance_eval("def foo(_, x, *_) x end")
assert_equal(2, obj.foo(1, 2, 3))
end
def test_duplicated_opt
assert_syntax_error("def foo(a, a=1) end", /duplicated argument name/)
assert_valid_syntax("def foo(_, _=1) end")
(obj = Object.new).instance_eval("def foo(_, x, _=42) x end")
assert_equal(2, obj.foo(1, 2))
end
def test_duplicated_opt_rest
assert_syntax_error("def foo(a=1, *a) end", /duplicated argument name/)
assert_valid_syntax("def foo(_=1, *_) end")
(obj = Object.new).instance_eval("def foo(_, x=42, *_) x end")
assert_equal(42, obj.foo(1))
assert_equal(2, obj.foo(1, 2))
end
def test_duplicated_rest_opt
assert_syntax_error("def foo(*a, a=1) end", /duplicated argument name/)
end
def test_duplicated_rest_post
assert_syntax_error("def foo(*a, a) end", /duplicated argument name/)
assert_valid_syntax("def foo(*_, _) end")
(obj = Object.new).instance_eval("def foo(*_, x, _) x end")
assert_equal(2, obj.foo(1, 2, 3))
assert_equal(2, obj.foo(2, 3))
(obj = Object.new).instance_eval("def foo(*_, _, x) x end")
assert_equal(3, obj.foo(1, 2, 3))
assert_equal(3, obj.foo(2, 3))
end
def test_duplicated_opt_post
assert_syntax_error("def foo(a=1, a) end", /duplicated argument name/)
assert_valid_syntax("def foo(_=1, _) end")
(obj = Object.new).instance_eval("def foo(_=1, x, _) x end")
assert_equal(2, obj.foo(1, 2, 3))
assert_equal(2, obj.foo(2, 3))
(obj = Object.new).instance_eval("def foo(_=1, _, x) x end")
assert_equal(3, obj.foo(1, 2, 3))
assert_equal(3, obj.foo(2, 3))
end
def test_duplicated_kw
assert_syntax_error("def foo(a, a: 1) end", /duplicated argument name/)
assert_valid_syntax("def foo(_, _: 1) end")
(obj = Object.new).instance_eval("def foo(_, x, _: 1) x end")
assert_equal(3, obj.foo(2, 3))
assert_equal(3, obj.foo(2, 3, _: 42))
(obj = Object.new).instance_eval("def foo(x, _, _: 1) x end")
assert_equal(2, obj.foo(2, 3))
assert_equal(2, obj.foo(2, 3, _: 42))
end
def test_duplicated_rest_kw
assert_syntax_error("def foo(*a, a: 1) end", /duplicated argument name/)
assert_nothing_raised {def foo(*_, _: 1) end}
(obj = Object.new).instance_eval("def foo(*_, x: 42, _: 1) x end")
assert_equal(42, obj.foo(42))
assert_equal(42, obj.foo(2, _: 0))
assert_equal(2, obj.foo(x: 2, _: 0))
end
def test_duplicated_opt_kw
assert_syntax_error("def foo(a=1, a: 1) end", /duplicated argument name/)
assert_valid_syntax("def foo(_=1, _: 1) end")
(obj = Object.new).instance_eval("def foo(_=42, x, _: 1) x end")
assert_equal(0, obj.foo(0))
assert_equal(0, obj.foo(0, _: 3))
end
def test_duplicated_kw_kwrest
assert_syntax_error("def foo(a: 1, **a) end", /duplicated argument name/)
assert_valid_syntax("def foo(_: 1, **_) end")
(obj = Object.new).instance_eval("def foo(_: 1, x: 42, **_) x end")
assert_equal(42, obj.foo())
assert_equal(42, obj.foo(a: 0))
assert_equal(42, obj.foo(_: 0, a: 0))
assert_equal(1, obj.foo(_: 0, x: 1, a: 0))
end
def test_duplicated_rest_kwrest
assert_syntax_error("def foo(*a, **a) end", /duplicated argument name/)
assert_valid_syntax("def foo(*_, **_) end")
(obj = Object.new).instance_eval("def foo(*_, x, **_) x end")
assert_equal(1, obj.foo(1))
assert_equal(1, obj.foo(1, a: 0))
assert_equal(2, obj.foo(1, 2, a: 0))
end
def test_duplicated_opt_kwrest
assert_syntax_error("def foo(a=1, **a) end", /duplicated argument name/)
assert_valid_syntax("def foo(_=1, **_) end")
(obj = Object.new).instance_eval("def foo(_=42, x, **_) x end")
assert_equal(1, obj.foo(1))
assert_equal(1, obj.foo(1, a: 0))
assert_equal(1, obj.foo(0, 1, a: 0))
end
def test_duplicated_when
w = 'warning: duplicated `when\' clause with line 3 is ignored'
assert_warning(/3: #{w}.+4: #{w}.+4: #{w}.+5: #{w}.+5: #{w}/m) {
eval %q{
case 1
when 1, 1
when 1, 1
when 1, 1
end
}
}
assert_warning(/#{w}/) {#/3: #{w}.+4: #{w}.+5: #{w}.+5: #{w}/m){
a = a = 1
eval %q{
case 1
when 1, 1
when 1, a
when 1, 1
end
}
}
end
def test_duplicated_when_check_option
w = /duplicated `when\' clause with line 3 is ignored/
assert_in_out_err(%[-wc], "#{<<~"begin;"}\n#{<<~'end;'}", ["Syntax OK"], w)
begin;
case 1
when 1
when 1
end
end;
end
def test_invalid_break
assert_syntax_error("def m; break; end", /Invalid break/)
assert_syntax_error('/#{break}/', /Invalid break/)
assert_syntax_error('/#{break}/o', /Invalid break/)
end
def test_invalid_next
assert_syntax_error("def m; next; end", /Invalid next/)
assert_syntax_error('/#{next}/', /Invalid next/)
assert_syntax_error('/#{next}/o', /Invalid next/)
end
def test_lambda_with_space
feature6390 = '[ruby-dev:45605]'
assert_valid_syntax("-> (x, y) {}", __FILE__, feature6390)
end
def test_do_block_in_cmdarg_begin
bug6419 = '[ruby-dev:45631]'
assert_valid_syntax("p begin 1.times do 1 end end", __FILE__, bug6419)
end
def test_do_block_in_call_args
bug9308 = '[ruby-core:59342] [Bug #9308]'
assert_valid_syntax("bar def foo; self.each do end end", bug9308)
end
def test_do_block_in_lambda
bug11107 = '[ruby-core:69017] [Bug #11107]'
assert_valid_syntax('p ->() do a() do end end', bug11107)
end
def test_do_block_after_lambda
bug11380 = '[ruby-core:70067] [Bug #11380]'
assert_valid_syntax('p -> { :hello }, a: 1 do end', bug11380)
end
def test_reserved_method_no_args
bug6403 = '[ruby-dev:45626]'
assert_valid_syntax("def self; :foo; end", __FILE__, bug6403)
end
def test_unassignable
gvar = global_variables
%w[self nil true false __FILE__ __LINE__ __ENCODING__].each do |kwd|
assert_raise(SyntaxError) {eval("#{kwd} = nil")}
assert_equal(gvar, global_variables)
end
end
Bug7559 = '[ruby-dev:46737]'
def test_lineno_command_call_quote
expected = __LINE__ + 1
actual = caller_lineno "a
b
c
d
e"
assert_equal(expected, actual, "#{Bug7559}: ")
end
def assert_dedented_heredoc(expect, result, mesg = "")
all_assertions(mesg) do |a|
%w[eos "eos" 'eos' `eos`].each do |eos|
a.for(eos) do
assert_equal(eval("<<-#{eos}\n#{expect}eos\n"),
eval("<<~#{eos}\n#{result}eos\n"))
end
end
end
end
def test_dedented_heredoc_without_indentation
result = " y\n" \
"z\n"
expect = result
assert_dedented_heredoc(expect, result)
end
def test_dedented_heredoc_with_indentation
result = " a\n" \
" b\n"
expect = " a\n" \
"b\n"
assert_dedented_heredoc(expect, result)
end
def test_dedented_heredoc_with_blank_less_indented_line
# the blank line has two leading spaces
result = " a\n" \
" \n" \
" b\n"
expect = "a\n" \
"\n" \
"b\n"
assert_dedented_heredoc(expect, result)
end
def test_dedented_heredoc_with_blank_less_indented_line_escaped
result = " a\n" \
"\\ \\ \n" \
" b\n"
expect = result
assert_dedented_heredoc(expect, result)
end
def test_dedented_heredoc_with_blank_more_indented_line
# the blank line has six leading spaces
result = " a\n" \
" \n" \
" b\n"
expect = "a\n" \
" \n" \
"b\n"
assert_dedented_heredoc(expect, result)
end
def test_dedented_heredoc_with_blank_more_indented_line_escaped
result = " a\n" \
"\\ \\ \\ \\ \\ \\ \n" \
" b\n"
expect = result
assert_dedented_heredoc(expect, result)
end
def test_dedented_heredoc_with_empty_line
result = " This would contain specially formatted text.\n" \
"\n" \
" That might span many lines\n"
expect = 'This would contain specially formatted text.'"\n" \
''"\n" \
'That might span many lines'"\n"
assert_dedented_heredoc(expect, result)
end
def test_dedented_heredoc_with_interpolated_expression
result = ' #{1}a'"\n" \
" zy\n"
expect = ' #{1}a'"\n" \
"zy\n"
assert_dedented_heredoc(expect, result)
end
def test_dedented_heredoc_with_interpolated_string
w = w = ""
result = " \#{mesg} a\n" \
" zy\n"
expect = '#{mesg} a'"\n" \
' zy'"\n"
assert_dedented_heredoc(expect, result)
end
def test_dedented_heredoc_with_newline
bug11989 = '[ruby-core:72855] [Bug #11989] after escaped newline should not be dedented'
result = ' x\n'" y\n" \
" z\n"
expect = 'x\n'" y\n" \
"z\n"
assert_dedented_heredoc(expect, result, bug11989)
end
def test_dedented_heredoc_with_concatenation
bug11990 = '[ruby-core:72857] [Bug #11990] concatenated string should not be dedented'
%w[eos "eos" 'eos'].each do |eos|
assert_equal("x\n y",
eval("<<~#{eos} ' y'\n x\neos\n"),
"#{bug11990} with #{eos}")
end
%w[eos "eos" 'eos' `eos`].each do |eos|
_, expect = eval("[<<~#{eos}, ' x']\n"" y\n""eos\n")
assert_equal(' x', expect, bug11990)
end
end
def test_dedented_heredoc_expr_at_beginning
result = " a\n" \
'#{1}'"\n"
expected = " a\n" \
'#{1}'"\n"
assert_dedented_heredoc(expected, result)
end
def test_dedented_heredoc_expr_string
result = ' one#{" two "}'"\n"
expected = 'one#{" two "}'"\n"
assert_dedented_heredoc(expected, result)
end
def test_dedented_heredoc_continued_line
result = " 1\\\n" " 2\n"
expected = "1\\\n" "2\n"
assert_dedented_heredoc(expected, result)
assert_syntax_error("#{<<~"begin;"}\n#{<<~'end;'}", /can't find string "TEXT"/)
begin;
<<-TEXT
\
TEXT
end;
assert_syntax_error("#{<<~"begin;"}\n#{<<~'end;'}", /can't find string "TEXT"/)
begin;
<<~TEXT
\
TEXT
end;
assert_equal(" TEXT\n", eval("<<~eos\n" " \\\n" "TEXT\n" "eos\n"))
end
def test_lineno_after_heredoc
bug7559 = '[ruby-dev:46737]'
expected, _, actual = __LINE__, <<eom, __LINE__
a
b
c
d
eom
assert_equal(expected, actual, bug7559)
end
def test_dedented_heredoc_invalid_identifer
assert_syntax_error('<<~ "#{}"', /unexpected <</)
end
def test_dedented_heredoc_concatenation
assert_equal("\n0\n1", eval("<<~0 '1'\n \n0\#{}\n0"))
end
def test_heredoc_mixed_encoding
e = assert_syntax_error(<<-'HEREDOC', 'UTF-8 mixed within Windows-31J source')
#encoding: cp932
<<-TEXT
\xe9\x9d\u1234
TEXT
HEREDOC
assert_not_match(/end-of-input/, e.message)
e = assert_syntax_error(<<-'HEREDOC', 'UTF-8 mixed within Windows-31J source')
#encoding: cp932
<<-TEXT
\xe9\x9d
\u1234
TEXT
HEREDOC
assert_not_match(/end-of-input/, e.message)
e = assert_syntax_error(<<-'HEREDOC', 'UTF-8 mixed within Windows-31J source')
#encoding: cp932
<<-TEXT
\u1234\xe9\x9d
TEXT
HEREDOC
assert_not_match(/end-of-input/, e.message)
e = assert_syntax_error(<<-'HEREDOC', 'UTF-8 mixed within Windows-31J source')
#encoding: cp932
<<-TEXT
\u1234
\xe9\x9d
TEXT
HEREDOC
assert_not_match(/end-of-input/, e.message)
end
def test_lineno_operation_brace_block
expected = __LINE__ + 1
actual = caller_lineno\
{}
assert_equal(expected, actual)
end
def assert_constant_reassignment_nested(preset, op, expected, err = [], bug = '[Bug #5449]')
[
["p ", ""], # no-pop
["", "p Foo::Bar"], # pop
].each do |p1, p2|
src = <<-EOM.gsub(/^\s*\n/, '')
class Foo
#{"Bar = " + preset if preset}
end
#{p1}Foo::Bar #{op}= 42
#{p2}
EOM
msg = "\# #{bug}\n#{src}"
assert_valid_syntax(src, caller_locations(1, 1)[0].path, msg)
assert_in_out_err([], src, expected, err, msg)
end
end
def test_constant_reassignment_nested
already = /already initialized constant Foo::Bar/
uninitialized = /uninitialized constant Foo::Bar/
assert_constant_reassignment_nested(nil, "||", %w[42])
assert_constant_reassignment_nested("false", "||", %w[42], already)
assert_constant_reassignment_nested("true", "||", %w[true])
assert_constant_reassignment_nested(nil, "&&", [], uninitialized)
assert_constant_reassignment_nested("false", "&&", %w[false])
assert_constant_reassignment_nested("true", "&&", %w[42], already)
assert_constant_reassignment_nested(nil, "+", [], uninitialized)
assert_constant_reassignment_nested("false", "+", [], /undefined method/)
assert_constant_reassignment_nested("11", "+", %w[53], already)
end
def assert_constant_reassignment_toplevel(preset, op, expected, err = [], bug = '[Bug #5449]')
[
["p ", ""], # no-pop
["", "p ::Bar"], # pop
].each do |p1, p2|
src = <<-EOM.gsub(/^\s*\n/, '')
#{"Bar = " + preset if preset}
class Foo
#{p1}::Bar #{op}= 42
#{p2}
end
EOM
msg = "\# #{bug}\n#{src}"
assert_valid_syntax(src, caller_locations(1, 1)[0].path, msg)
assert_in_out_err([], src, expected, err, msg)
end
end
def test_constant_reassignment_toplevel
already = /already initialized constant Bar/
uninitialized = /uninitialized constant Bar/
assert_constant_reassignment_toplevel(nil, "||", %w[42])
assert_constant_reassignment_toplevel("false", "||", %w[42], already)
assert_constant_reassignment_toplevel("true", "||", %w[true])
assert_constant_reassignment_toplevel(nil, "&&", [], uninitialized)
assert_constant_reassignment_toplevel("false", "&&", %w[false])
assert_constant_reassignment_toplevel("true", "&&", %w[42], already)
assert_constant_reassignment_toplevel(nil, "+", [], uninitialized)
assert_constant_reassignment_toplevel("false", "+", [], /undefined method/)
assert_constant_reassignment_toplevel("11", "+", %w[53], already)
end
def test_integer_suffix
["1if true", "begin 1end"].each do |src|
assert_valid_syntax(src)
assert_equal(1, eval(src), src)
end
end
def test_value_of_def
assert_separately [], <<-EOS
assert_equal(:foo, (def foo; end))
assert_equal(:foo, (def (Object.new).foo; end))
EOS
end
def test_heredoc_cr
assert_syntax_error("puts <<""EOS\n""ng\n""EOS\r""NO\n", /can't find string "EOS" anywhere before EOF/)
end
def test_heredoc_no_terminator
assert_syntax_error("puts <<""A\n", /can't find string "A" anywhere before EOF/)
assert_syntax_error("puts <<""A + <<""B\n", /can't find string "A" anywhere before EOF/)
assert_syntax_error("puts <<""A + <<""B\n", /can't find string "B" anywhere before EOF/)
end
def test_unterminated_heredoc
assert_syntax_error("<<\"EOS\n\nEOS\n", /unterminated/)
assert_syntax_error("<<\"EOS\n\"\nEOS\n", /unterminated/)
end
def test_unterminated_heredoc_cr
%W[\r\n \n].each do |nl|
assert_syntax_error("<<\"\r\"#{nl}\r#{nl}", /unterminated/, nil, "CR with #{nl.inspect}")
end
end
def test__END___cr
assert_syntax_error("__END__\r<<<<<\n", /unexpected <</)
end
def test_warning_for_cr
feature8699 = '[ruby-core:56240] [Feature #8699]'
assert_warning(/encountered \\r/, feature8699) do
eval("\r""__id__\r")
end
end
def test_unexpected_fraction
msg = /unexpected fraction/
assert_syntax_error("0x0.0", msg)
assert_syntax_error("0b0.0", msg)
assert_syntax_error("0d0.0", msg)
assert_syntax_error("0o0.0", msg)
assert_syntax_error("0.0.0", msg)
end
def test_error_message_encoding
bug10114 = '[ruby-core:64228] [Bug #10114]'
code = "# -*- coding: utf-8 -*-\n" "def n \"\u{2208}\"; end"
assert_syntax_error(code, /def n "\u{2208}"; end/, bug10114)
end
def test_null_range_cmdarg
bug10957 = '[ruby-core:68477] [Bug #10957]'
assert_ruby_status(['-c', '-e', 'p ()..0'], "", bug10957)
assert_ruby_status(['-c', '-e', 'p ()...0'], "", bug10957)
assert_syntax_error('0..%q.', /unterminated string/, bug10957)
assert_syntax_error('0...%q.', /unterminated string/, bug10957)
end
def test_too_big_nth_ref
bug11192 = '[ruby-core:69393] [Bug #11192]'
assert_warn(/too big/, bug11192) do
eval('$99999999999999999')
end
end
def test_invalid_symbol_space
assert_syntax_error(": foo", /unexpected ':'/)
assert_syntax_error(": #\n foo", /unexpected ':'/)
assert_syntax_error(":#\n foo", /unexpected ':'/)
end
def test_invalid_literal_message
assert_syntax_error("def :foo", /unexpected symbol literal/)
assert_syntax_error("def 'foo'", /unexpected string literal/)
end
def test_fluent_dot
assert_valid_syntax("a\n.foo")
assert_valid_syntax("a\n&.foo")
assert_valid_syntax("a\n.:foo")
end
def test_safe_call_in_massign_lhs
assert_syntax_error("*a&.x=0", /multiple assignment destination/)
assert_syntax_error("a&.x,=0", /multiple assignment destination/)
end
def test_no_warning_logop_literal
assert_warning("") do
eval("true||raise;nil")
end
assert_warning("") do
eval("false&&raise;nil")
end
assert_warning("") do
eval("''||raise;nil")
end
end
def test_warning_literal_in_condition
assert_warn(/literal in condition/) do
eval('1 if ""')
end
assert_warn(/literal in condition/) do
eval('1 if //')
end
assert_warn(/literal in condition/) do
eval('1 if true..false')
end
assert_warning(/literal in condition/) do
eval('1 if 1')
end
assert_warning(/literal in condition/) do
eval('1 if :foo')
end
assert_warning(/literal in condition/) do
eval('1 if :"#{"foo".upcase}"')
end
assert_warn('') do
eval('1 if !""')
end
assert_warn('') do
eval('1 if !//')
end
assert_warn('') do
eval('1 if !(true..false)')
end
assert_warning('') do
eval('1 if !1')
end
assert_warning('') do
eval('1 if !:foo')
end
assert_warning('') do
eval('1 if !:"#{"foo".upcase}"')
end
end
def test_alias_symbol
bug8851 = '[ruby-dev:47681] [Bug #8851]'
formats = ['%s', ":'%s'", ':"%s"', '%%s(%s)']
all_assertions(bug8851) do |all|
formats.product(formats) do |form1, form2|
all.for(code = "alias #{form1 % 'a'} #{form2 % 'p'}") do
assert_valid_syntax(code)
end
end
end
end
def test_undef_symbol
bug8851 = '[ruby-dev:47681] [Bug #8851]'
formats = ['%s', ":'%s'", ':"%s"', '%%s(%s)']
all_assertions(bug8851) do |all|
formats.product(formats) do |form1, form2|
all.for(code = "undef #{form1 % 'a'}, #{form2 % 'p'}") do
assert_valid_syntax(code)
end
end
end
end
def test_parenthesised_statement_argument
assert_syntax_error("foo(bar rescue nil)", /unexpected `rescue' modifier/)
assert_valid_syntax("foo (bar rescue nil)")
end
def test_cmdarg_in_paren
bug11873 = '[ruby-core:72482] [Bug #11873]'
assert_valid_syntax %q{a b{c d}, :e do end}, bug11873
assert_valid_syntax %q{a b(c d), :e do end}, bug11873
assert_valid_syntax %q{a b{c(d)}, :e do end}, bug11873
assert_valid_syntax %q{a b(c(d)), :e do end}, bug11873
assert_valid_syntax %q{a b{c d}, 1 do end}, bug11873
assert_valid_syntax %q{a b(c d), 1 do end}, bug11873
assert_valid_syntax %q{a b{c(d)}, 1 do end}, bug11873
assert_valid_syntax %q{a b(c(d)), 1 do end}, bug11873
assert_valid_syntax %q{a b{c d}, "x" do end}, bug11873
assert_valid_syntax %q{a b(c d), "x" do end}, bug11873
assert_valid_syntax %q{a b{c(d)}, "x" do end}, bug11873
assert_valid_syntax %q{a b(c(d)), "x" do end}, bug11873
end
def test_block_after_cmdarg_in_paren
bug11873 = '[ruby-core:72482] [Bug #11873]'
def bug11873.p(*);end;
assert_raise(LocalJumpError, bug11873) do
bug11873.instance_eval do
p p{p p;p(p)}, tap do
raise SyntaxError, "should not be passed to tap"
end
end
end
assert_raise(LocalJumpError, bug11873) do
bug11873.instance_eval do
p p{p(p);p p}, tap do
raise SyntaxError, "should not be passed to tap"
end
end
end
end
def test_do_block_in_hash_brace
bug13073 = '[ruby-core:78837] [Bug #13073]'
assert_valid_syntax 'p :foo, {a: proc do end, b: proc do end}', bug13073
assert_valid_syntax 'p :foo, {:a => proc do end, b: proc do end}', bug13073
assert_valid_syntax 'p :foo, {"a": proc do end, b: proc do end}', bug13073
assert_valid_syntax 'p :foo, {** proc do end, b: proc do end}', bug13073
assert_valid_syntax 'p :foo, {proc do end => proc do end, b: proc do end}', bug13073
end
def test_do_after_local_variable
obj = Object.new
def obj.m; yield; end
result = assert_nothing_raised(SyntaxError) do
obj.instance_eval("m = 1; m do :ok end")
end
assert_equal(:ok, result)
end
def test_brace_after_local_variable
obj = Object.new
def obj.m; yield; end
result = assert_nothing_raised(SyntaxError) do
obj.instance_eval("m = 1; m {:ok}")
end
assert_equal(:ok, result)
end
def test_brace_after_literal_argument
bug = '[ruby-core:81037] [Bug #13547]'
error = /unexpected '{'/
assert_syntax_error('m "x" {}', error)
assert_syntax_error('m 1 {}', error, bug)
assert_syntax_error('m 1.0 {}', error, bug)
assert_syntax_error('m :m {}', error, bug)
assert_syntax_error('m :"#{m}" {}', error, bug)
assert_syntax_error('m ?x {}', error, bug)
assert_syntax_error('m %[] {}', error, bug)
assert_syntax_error('m 0..1 {}', error, bug)
assert_syntax_error('m [] {}', error, bug)
end
def test_return_toplevel
feature4840 = '[ruby-core:36785] [Feature #4840]'
line = __LINE__+2
code = "#{<<~"begin;"}#{<<~'end;'}"
begin;
return; raise
begin return; rescue SystemExit; exit false; end
begin return; ensure puts "ensured"; end #=> ensured
begin ensure return; end
begin raise; ensure; return; end
begin raise; rescue; return; end
return false; raise
return 1; raise
"#{return}"
raise((return; "should not raise"))
begin raise; ensure return; end; self
begin raise; ensure return; end and self
nil&defined?0--begin e=no_method_error(); return; 0;end
return puts('ignored') #=> ignored
end;
.split(/\n/).map {|s|[(line+=1), *s.split(/#=> /, 2)]}
failed = proc do |n, s|
RubyVM::InstructionSequence.compile(s, __FILE__, nil, n).disasm
end
Tempfile.create(%w"test_return_ .rb") do |lib|
lib.close
args = %W[-W0 -r#{lib.path}]
all_assertions_foreach(feature4840, *[:main, :lib].product([:class, :top], code)) do |main, klass, (n, s, *ex)|
if klass == :class
s = "class X; #{s}; end"
if main == :main
assert_in_out_err(%[-W0], s, [], /return/, proc {failed[n, s]}, success: false)
else
File.write(lib, s)
assert_in_out_err(args, "", [], /return/, proc {failed[n, s]}, success: false)
end
else
if main == :main
assert_in_out_err(%[-W0], s, ex, [], proc {failed[n, s]}, success: true)
else
File.write(lib, s)
assert_in_out_err(args, "", ex, [], proc {failed[n, s]}, success: true)
end
end
end
end
end
def test_syntax_error_in_rescue
bug12613 = '[ruby-core:76531] [Bug #12613]'
assert_syntax_error("#{<<-"begin;"}\n#{<<-"end;"}", /Invalid retry/, bug12613)
begin;
while true
begin
p
rescue
retry
else
retry
end
break
end
end;
end
def test_syntax_error_at_newline
expected = "\n ^"
assert_syntax_error("%[abcdef", expected)
assert_syntax_error("%[abcdef\n", expected)
end
def test_invalid_jump
assert_in_out_err(%w[-e redo], "", [], /^-e:1: /)
end
def test_keyword_not_parens
assert_valid_syntax("not()")
end
def test_rescue_do_end_raised
result = []
assert_raise(RuntimeError) do
eval("#{<<-"begin;"}\n#{<<-"end;"}")
begin;
tap do
result << :begin
raise "An exception occurred!"
ensure
result << :ensure
end
end;
end
assert_equal([:begin, :ensure], result)
end
def test_rescue_do_end_rescued
result = []
assert_nothing_raised(RuntimeError) do
eval("#{<<-"begin;"}\n#{<<-"end;"}")
begin;
tap do
result << :begin
raise "An exception occurred!"
rescue
result << :rescue
else
result << :else
ensure
result << :ensure
end
end;
end
assert_equal([:begin, :rescue, :ensure], result)
end
def test_rescue_do_end_no_raise
result = []
assert_nothing_raised(RuntimeError) do
eval("#{<<-"begin;"}\n#{<<-"end;"}")
begin;
tap do
result << :begin
rescue
result << :rescue
else
result << :else
ensure
result << :ensure
end
end;
end
assert_equal([:begin, :else, :ensure], result)
end
def test_rescue_do_end_ensure_result
result = eval("#{<<-"begin;"}\n#{<<-"end;"}")
begin;
proc do
:begin
ensure
:ensure
end.call
end;
assert_equal(:begin, result)
end
def test_rescue_do_end_ensure_in_lambda
result = []
eval("#{<<-"begin;"}\n#{<<-"end;"}")
begin;
-> do
result << :begin
raise "An exception occurred!"
rescue
result << :rescue
else
result << :else
ensure
result << :ensure
end.call
end;
assert_equal([:begin, :rescue, :ensure], result)
end
def test_return_in_loop
obj = Object.new
def obj.test
x = nil
return until x unless x
end
assert_nil obj.test
end
def test_method_call_location
line = __LINE__+5
e = assert_raise(NoMethodError) do
1.upto(0) do
end
.
foo(
1,
2,
)
end
assert_equal(line, e.backtrace_locations[0].lineno)
line = __LINE__+5
e = assert_raise(NoMethodError) do
1.upto 0 do
end
.
foo(
1,
2,
)
end
assert_equal(line, e.backtrace_locations[0].lineno)
end
def test_methoddef_in_cond
assert_valid_syntax('while def foo; tap do end; end; break; end')
assert_valid_syntax('while def foo a = tap do end; end; break; end')
end
def test_classdef_in_cond
assert_valid_syntax('while class Foo; tap do end; end; break; end')
assert_valid_syntax('while class Foo a = tap do end; end; break; end')
end
def test_command_with_cmd_brace_block
assert_valid_syntax('obj.foo (1) {}')
assert_valid_syntax('obj::foo (1) {}')
end
def test_numbered_parameter
assert_valid_syntax('proc {@1}')
assert_equal(3, eval('[1,2].then {@1+@2}'))
assert_equal("12", eval('[1,2].then {"#@1#@2"}'))
assert_equal(3, eval('->{@1+@2}.call(1,2)'))
assert_equal(4, eval('->(a=->{@1}){a}.call.call(4)'))
assert_equal(5, eval('-> a: ->{@1} {a}.call.call(5)'))
assert_syntax_error('proc {|| @1}', /ordinary parameter is defined/)
assert_syntax_error('proc {|;a| @1}', /ordinary parameter is defined/)
assert_syntax_error("proc {|\n| @1}", /ordinary parameter is defined/)
assert_syntax_error('proc {|x| @1}', /ordinary parameter is defined/)
assert_syntax_error('->(){@1}', /ordinary parameter is defined/)
assert_syntax_error('->(x){@1}', /ordinary parameter is defined/)
assert_syntax_error('->x{@1}', /ordinary parameter is defined/)
assert_syntax_error('->x:@2{}', /ordinary parameter is defined/)
assert_syntax_error('->x=@1{}', /ordinary parameter is defined/)
assert_syntax_error('proc {@1 = nil}', /Can't assign to numbered parameter @1/)
assert_syntax_error('proc {@01}', /leading zero/)
assert_syntax_error('proc {@1_}', /unexpected/)
assert_syntax_error('proc {@9999999999999999}', /too large/)
assert_syntax_error('@1', /outside block/)
end
def test_pipeline_operator
assert_valid_syntax('x |> y')
x = nil
assert_equal("121", eval('x = 12 |> pow(2) |> to_s 11'))
assert_equal(12, x)
assert_equal([2, 4, 6], eval("1.. |> take 3\n|> map do @1 * 2 end"))
assert_syntax_error('a|>-b', /unexpected '-'/)
end
def test_value_expr_in_condition
mesg = /void value expression/
assert_syntax_error("tap {a = (true ? next : break)}", mesg)
assert_valid_syntax("tap {a = (true ? true : break)}")
assert_valid_syntax("tap {a = (break if false)}")
assert_valid_syntax("tap {a = (break unless true)}")
end
private
def not_label(x) @result = x; @not_label ||= nil end
def assert_not_label(expected, src, message = nil)
@result = nil
assert_nothing_raised(SyntaxError, message) {eval(src)}
assert_equal(expected, @result, message)
end
def make_tmpsrc(f, src)
f.open
f.truncate(0)
f.puts(src)
f.close
end
def with_script_lines
script_lines = nil
debug_lines = {}
Object.class_eval do
if defined?(SCRIPT_LINES__)
script_lines = SCRIPT_LINES__
remove_const :SCRIPT_LINES__
end
const_set(:SCRIPT_LINES__, debug_lines)
end
yield debug_lines
ensure
Object.class_eval do
remove_const :SCRIPT_LINES__
const_set(:SCRIPT_LINES__, script_lines) if script_lines
end
end
def caller_lineno(*)
caller_locations(1, 1)[0].lineno
end
end