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# frozen_string_literal: true
return if RUBY_VERSION < "3.3"
require_relative "test_helper"
module Prism
class RipperTest < TestCase
base = File.join(__dir__, "fixtures")
relatives = ENV["FOCUS"] ? [ENV["FOCUS"]] : Dir["**/*.txt", base: base]
incorrect = [
# Ripper incorrectly attributes the block to the keyword.
"seattlerb/block_break.txt",
"seattlerb/block_next.txt",
"seattlerb/block_return.txt",
"whitequark/break_block.txt",
"whitequark/next_block.txt",
"whitequark/return_block.txt",
# Ripper is not accounting for locals created by patterns using the **
# operator within an `in` clause.
"seattlerb/parse_pattern_058.txt",
# Ripper cannot handle named capture groups in regular expressions.
"regex.txt",
"regex_char_width.txt",
"whitequark/lvar_injecting_match.txt",
# Ripper fails to understand some structures that span across heredocs.
"spanning_heredoc.txt"
]
omitted = [
"dos_endings.txt",
"heredocs_with_ignored_newlines.txt",
"seattlerb/block_call_dot_op2_brace_block.txt",
"seattlerb/block_command_operation_colon.txt",
"seattlerb/block_command_operation_dot.txt",
"seattlerb/heredoc__backslash_dos_format.txt",
"seattlerb/heredoc_backslash_nl.txt",
"seattlerb/heredoc_nested.txt",
"seattlerb/heredoc_squiggly_blank_line_plus_interpolation.txt",
"tilde_heredocs.txt",
"unparser/corpus/semantic/dstr.txt",
"whitequark/dedenting_heredoc.txt",
"whitequark/parser_drops_truncated_parts_of_squiggly_heredoc.txt",
"whitequark/parser_slash_slash_n_escaping_in_literals.txt",
"whitequark/send_block_chain_cmd.txt",
"whitequark/slash_newline_in_heredocs.txt"
]
relatives.each do |relative|
# Skip the tests that Ripper is reporting the wrong results for.
next if incorrect.include?(relative)
# Skip the tests we haven't implemented yet.
next if omitted.include?(relative)
filepath = File.join(__dir__, "fixtures", relative)
define_method "test_ripper_#{relative}" do
source = File.read(filepath, binmode: true, external_encoding: Encoding::UTF_8)
case relative
when /break|next|redo|if|unless|rescue|control|keywords|retry/
source = "-> do\nrescue\n#{source}\nend"
end
case source
when /^ *yield/
source = "def __invalid_yield__\n#{source}\nend"
end
assert_ripper(source)
end
end
private
def assert_ripper(source)
assert_equal Ripper.sexp_raw(source), Prism::Translation::Ripper.sexp_raw(source)
end
end
end
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