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# frozen_string_literal: true
# Don't bother checking this on these engines, this is such a specific Ripper
# test.
return if RUBY_ENGINE == "jruby" || RUBY_ENGINE == "truffleruby"
require_relative "test_helper"
module Prism
class BOMTest < TestCase
def test_ident
assert_bom("foo")
end
def test_back_reference
assert_bom("$+")
end
def test_instance_variable
assert_bom("@foo")
end
def test_class_variable
assert_bom("@@foo")
end
def test_global_variable
assert_bom("$foo")
end
def test_numbered_reference
assert_bom("$1")
end
def test_percents
assert_bom("%i[]")
assert_bom("%r[]")
assert_bom("%s[]")
assert_bom("%q{}")
assert_bom("%w[]")
assert_bom("%x[]")
assert_bom("%I[]")
assert_bom("%W[]")
assert_bom("%Q{}")
end
def test_string
assert_bom("\"\"")
assert_bom("''")
end
private
def assert_bom(source)
bommed = "\xEF\xBB\xBF#{source}"
assert_equal Prism.lex_ripper(bommed), Prism.lex_compat(bommed).value
end
end
end
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