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ruby--ruby/test/strscan/test_stringscanner.rb

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#
# test/strscan/test_stringscanner.rb
#
require 'strscan'
require 'test/unit'
class TestStringScanner < Test::Unit::TestCase
def test_s_new
s = StringScanner.new('test string')
assert_instance_of StringScanner, s
assert_equal false, s.eos?
assert_equal false, s.tainted?
str = 'test string'
str.taint
s = StringScanner.new(str, false)
assert_instance_of StringScanner, s
assert_equal false, s.eos?
assert_same str, s.string
assert_equal true, s.string.tainted?
str = 'test string'
str.taint
s = StringScanner.new(str)
assert_equal true, s.string.tainted?
end
UNINIT_ERROR = ArgumentError
def test_s_allocate
s = StringScanner.allocate
assert_equal '#<StringScanner (uninitialized)>', s.inspect.sub(/StringScanner_C/, 'StringScanner')
assert_raise(UNINIT_ERROR) { s.eos? }
assert_raise(UNINIT_ERROR) { s.scan(/a/) }
s.string = 'test'
assert_equal '#<StringScanner 0/4 @ "test">', s.inspect.sub(/StringScanner_C/, 'StringScanner')
assert_nothing_raised(UNINIT_ERROR) { s.eos? }
assert_equal false, s.eos?
end
def test_s_mustc
assert_nothing_raised(NotImplementedError) {
StringScanner.must_C_version
}
end
def test_dup
s = StringScanner.new('test string')
d = s.dup
assert_equal s.inspect, d.inspect
assert_equal s.string, d.string
assert_equal s.pos, d.pos
assert_equal s.matched?, d.matched?
assert_equal s.eos?, d.eos?
s = StringScanner.new('test string')
s.scan(/test/)
d = s.dup
assert_equal s.inspect, d.inspect
assert_equal s.string, d.string
assert_equal s.pos, d.pos
assert_equal s.matched?, d.matched?
assert_equal s.eos?, d.eos?
s = StringScanner.new('test string')
s.scan(/test/)
s.scan(/NOT MATCH/)
d = s.dup
assert_equal s.inspect, d.inspect
assert_equal s.string, d.string
assert_equal s.pos, d.pos
assert_equal s.matched?, d.matched?
assert_equal s.eos?, d.eos?
s = StringScanner.new('test string')
s.terminate
d = s.dup
assert_equal s.inspect, d.inspect
assert_equal s.string, d.string
assert_equal s.pos, d.pos
assert_equal s.matched?, d.matched?
assert_equal s.eos?, d.eos?
end
def test_const_Version
assert_instance_of String, StringScanner::Version
assert_equal true, StringScanner::Version.frozen?
end
def test_const_Id
assert_instance_of String, StringScanner::Id
assert_equal true, StringScanner::Id.frozen?
end
def test_inspect
str = 'test string'
str.taint
s = StringScanner.new(str, false)
assert_instance_of String, s.inspect
assert_equal s.inspect, s.inspect
assert_equal '#<StringScanner 0/11 @ "test ...">', s.inspect.sub(/StringScanner_C/, 'StringScanner')
s.get_byte
assert_equal '#<StringScanner 1/11 "t" @ "est s...">', s.inspect.sub(/StringScanner_C/, 'StringScanner')
assert_equal true, s.inspect.tainted?
s = StringScanner.new("\n")
assert_equal '#<StringScanner 0/1 @ "\n">', s.inspect
end
def test_eos?
s = StringScanner.new('test string')
assert_equal false, s.eos?
assert_equal false, s.eos?
s.scan(/\w+/)
assert_equal false, s.eos?
assert_equal false, s.eos?
s.scan(/\s+/)
s.scan(/\w+/)
assert_equal true, s.eos?
assert_equal true, s.eos?
s.scan(/\w+/)
assert_equal true, s.eos?
s = StringScanner.new('test')
s.scan(/te/)
s.string.replace ''
assert_equal true, s.eos?
end
def test_bol?
s = StringScanner.new("a\nbbb\n\ncccc\nddd\r\neee")
assert_equal true, s.bol?
assert_equal true, s.bol?
s.scan(/a/)
assert_equal false, s.bol?
assert_equal false, s.bol?
s.scan(/\n/)
assert_equal true, s.bol?
s.scan(/b/)
assert_equal false, s.bol?
s.scan(/b/)
assert_equal false, s.bol?
s.scan(/b/)
assert_equal false, s.bol?
s.scan(/\n/)
assert_equal true, s.bol?
s.unscan
assert_equal false, s.bol?
s.scan(/\n/)
s.scan(/\n/)
assert_equal true, s.bol?
s.scan(/c+\n/)
assert_equal true, s.bol?
s.scan(/d+\r\n/)
assert_equal true, s.bol?
s.scan(/e+/)
assert_equal false, s.bol?
end
def test_string
s = StringScanner.new('test')
assert_equal 'test', s.string
s.string = 'a'
assert_equal 'a', s.string
s.scan(/a/)
s.string = 'b'
assert_equal 0, s.pos
end
def test_pos
s = StringScanner.new('test string')
assert_equal 0, s.pos
s.get_byte
assert_equal 1, s.pos
s.get_byte
assert_equal 2, s.pos
s.terminate
assert_equal 11, s.pos
end
def test_concat
s = StringScanner.new('a')
s.scan(/a/)
s.concat 'b'
assert_equal false, s.eos?
assert_equal 'b', s.scan(/b/)
assert_equal true, s.eos?
s.concat 'c'
assert_equal false, s.eos?
assert_equal 'c', s.scan(/c/)
assert_equal true, s.eos?
end
def test_scan
s = StringScanner.new('stra strb strc', true)
tmp = s.scan(/\w+/)
assert_equal 'stra', tmp
assert_equal false, tmp.tainted?
tmp = s.scan(/\s+/)
assert_equal ' ', tmp
assert_equal false, tmp.tainted?
assert_equal 'strb', s.scan(/\w+/)
assert_equal ' ', s.scan(/\s+/)
tmp = s.scan(/\w+/)
assert_equal 'strc', tmp
assert_equal false, tmp.tainted?
assert_nil s.scan(/\w+/)
assert_nil s.scan(/\w+/)
str = 'stra strb strc'
str.taint
s = StringScanner.new(str, false)
tmp = s.scan(/\w+/)
assert_equal 'stra', tmp
assert_equal true, tmp.tainted?
tmp = s.scan(/\s+/)
assert_equal ' ', tmp
assert_equal true, tmp.tainted?
assert_equal 'strb', s.scan(/\w+/)
assert_equal ' ', s.scan(/\s+/)
tmp = s.scan(/\w+/)
assert_equal 'strc', tmp
assert_equal true, tmp.tainted?
assert_nil s.scan(/\w+/)
assert_nil s.scan(/\w+/)
s = StringScanner.new('test')
s.scan(/te/)
# This assumes #string does not duplicate string,
# but it is implementation specific issue.
# DO NOT RELY ON THIS FEATURE.
s.string.replace ''
# unspecified: assert_equal 2, s.pos
assert_equal nil, s.scan(/test/)
# [ruby-bugs:4361]
s = StringScanner.new("")
assert_equal "", s.scan(//)
assert_equal "", s.scan(//)
end
def test_skip
s = StringScanner.new('stra strb strc', true)
assert_equal 4, s.skip(/\w+/)
assert_equal 1, s.skip(/\s+/)
assert_equal 4, s.skip(/\w+/)
assert_equal 1, s.skip(/\s+/)
assert_equal 4, s.skip(/\w+/)
assert_nil s.skip(/\w+/)
assert_nil s.skip(/\s+/)
assert_equal true, s.eos?
s = StringScanner.new('test')
s.scan(/te/)
s.string.replace ''
assert_equal nil, s.skip(/./)
# [ruby-bugs:4361]
s = StringScanner.new("")
assert_equal 0, s.skip(//)
assert_equal 0, s.skip(//)
end
def test_getch
s = StringScanner.new('abcde')
assert_equal 'a', s.getch
assert_equal 'b', s.getch
assert_equal 'c', s.getch
assert_equal 'd', s.getch
assert_equal 'e', s.getch
assert_nil s.getch
str = 'abc'
str.taint
s = StringScanner.new(str)
assert_equal true, s.getch.tainted?
assert_equal true, s.getch.tainted?
assert_equal true, s.getch.tainted?
assert_nil s.getch
s = StringScanner.new("\244\242".force_encoding("euc-jp"))
assert_equal "\244\242".force_encoding("euc-jp"), s.getch
assert_nil s.getch
s = StringScanner.new('test')
s.scan(/te/)
s.string.replace ''
assert_equal nil, s.getch
end
def test_get_byte
s = StringScanner.new('abcde')
assert_equal 'a', s.get_byte
assert_equal 'b', s.get_byte
assert_equal 'c', s.get_byte
assert_equal 'd', s.get_byte
assert_equal 'e', s.get_byte
assert_nil s.get_byte
assert_nil s.get_byte
str = 'abc'
str.taint
s = StringScanner.new(str)
assert_equal true, s.get_byte.tainted?
assert_equal true, s.get_byte.tainted?
assert_equal true, s.get_byte.tainted?
assert_nil s.get_byte
s = StringScanner.new("\244\242".force_encoding("euc-jp"))
assert_equal "\244".force_encoding("euc-jp"), s.get_byte
assert_equal "\242".force_encoding("euc-jp"), s.get_byte
assert_nil s.get_byte
s = StringScanner.new('test')
s.scan(/te/)
s.string.replace ''
assert_equal nil, s.get_byte
end
def test_matched
s = StringScanner.new('stra strb strc')
s.scan(/\w+/)
assert_equal 'stra', s.matched
assert_equal false, s.matched.tainted?
s.scan(/\s+/)
assert_equal ' ', s.matched
s.scan(/\w+/)
assert_equal 'strb', s.matched
s.scan(/\s+/)
assert_equal ' ', s.matched
s.scan(/\w+/)
assert_equal 'strc', s.matched
s.scan(/\w+/)
assert_nil s.matched
s.getch
assert_nil s.matched
s = StringScanner.new('stra strb strc')
s.getch
assert_equal 's', s.matched
assert_equal false, s.matched.tainted?
s.get_byte
assert_equal 't', s.matched
assert_equal 't', s.matched
assert_equal false, s.matched.tainted?
str = 'test'
str.taint
s = StringScanner.new(str)
s.scan(/\w+/)
assert_equal true, s.matched.tainted?
assert_equal true, s.matched.tainted?
end
def test_AREF
s = StringScanner.new('stra strb strc')
s.scan(/\w+/)
assert_nil s[-2]
assert_equal 'stra', s[-1]
assert_equal 'stra', s[0]
assert_nil s[1]
assert_equal false, s[-1].tainted?
assert_equal false, s[0].tainted?
s.skip(/\s+/)
assert_nil s[-2]
assert_equal ' ', s[-1]
assert_equal ' ', s[0]
assert_nil s[1]
s.scan(/(s)t(r)b/)
assert_nil s[-100]
assert_nil s[-4]
assert_equal 'strb', s[-3]
assert_equal 's', s[-2]
assert_equal 'r', s[-1]
assert_equal 'strb', s[0]
assert_equal 's', s[1]
assert_equal 'r', s[2]
assert_nil s[3]
assert_nil s[100]
s.scan(/\s+/)
s.getch
assert_nil s[-2]
assert_equal 's', s[-1]
assert_equal 's', s[0]
assert_nil s[1]
s.get_byte
assert_nil s[-2]
assert_equal 't', s[-1]
assert_equal 't', s[0]
assert_nil s[1]
s.scan(/.*/)
s.scan(/./)
assert_nil s[0]
assert_nil s[0]
s = StringScanner.new("\244\242".force_encoding("euc-jp"))
s.getch
assert_equal "\244\242".force_encoding("euc-jp"), s[0]
str = 'test'
str.taint
s = StringScanner.new(str)
s.scan(/(t)(e)(s)(t)/)
assert_equal true, s[0].tainted?
assert_equal true, s[1].tainted?
assert_equal true, s[2].tainted?
assert_equal true, s[3].tainted?
assert_equal true, s[4].tainted?
end
def test_pre_match
s = StringScanner.new('a b c d e')
s.scan(/\w/)
assert_equal '', s.pre_match
assert_equal false, s.pre_match.tainted?
s.skip(/\s/)
assert_equal 'a', s.pre_match
assert_equal false, s.pre_match.tainted?
s.scan(/\w/)
assert_equal 'a ', s.pre_match
s.scan_until(/c/)
assert_equal 'a b ', s.pre_match
s.getch
assert_equal 'a b c', s.pre_match
s.get_byte
assert_equal 'a b c ', s.pre_match
s.get_byte
assert_equal 'a b c d', s.pre_match
s.scan(/never match/)
assert_nil s.pre_match
str = 'test string'
str.taint
s = StringScanner.new(str)
s.scan(/\w+/)
assert_equal true, s.pre_match.tainted?
s.scan(/\s+/)
assert_equal true, s.pre_match.tainted?
s.scan(/\w+/)
assert_equal true, s.pre_match.tainted?
end
def test_post_match
s = StringScanner.new('a b c d e')
s.scan(/\w/)
assert_equal ' b c d e', s.post_match
s.skip(/\s/)
assert_equal 'b c d e', s.post_match
s.scan(/\w/)
assert_equal ' c d e', s.post_match
s.scan_until(/c/)
assert_equal ' d e', s.post_match
s.getch
assert_equal 'd e', s.post_match
s.get_byte
assert_equal ' e', s.post_match
s.get_byte
assert_equal 'e', s.post_match
s.scan(/never match/)
assert_nil s.post_match
s.scan(/./)
assert_equal '', s.post_match
s.scan(/./)
assert_nil s.post_match
str = 'test string'
str.taint
s = StringScanner.new(str)
s.scan(/\w+/)
assert_equal true, s.post_match.tainted?
s.scan(/\s+/)
assert_equal true, s.post_match.tainted?
s.scan(/\w+/)
assert_equal true, s.post_match.tainted?
end
def test_terminate
s = StringScanner.new('ssss')
s.getch
s.terminate
assert_equal true, s.eos?
s.terminate
assert_equal true, s.eos?
end
def test_reset
s = StringScanner.new('ssss')
s.getch
s.reset
assert_equal 0, s.pos
s.scan(/\w+/)
s.reset
assert_equal 0, s.pos
s.reset
assert_equal 0, s.pos
end
def test_matched_size
s = StringScanner.new('test string')
assert_nil s.matched_size
s.scan(/test/)
assert_equal 4, s.matched_size
assert_equal 4, s.matched_size
s.scan(//)
assert_equal 0, s.matched_size
s.scan(/x/)
assert_nil s.matched_size
assert_nil s.matched_size
s.terminate
assert_nil s.matched_size
s = StringScanner.new('test string')
assert_nil s.matched_size
s.scan(/test/)
assert_equal 4, s.matched_size
s.terminate
assert_nil s.matched_size
end
def test_encoding
ss = StringScanner.new("\xA1\xA2".force_encoding("euc-jp"))
assert_equal(Encoding::EUC_JP, ss.scan(/./e).encoding)
end
def test_generic_regexp
ss = StringScanner.new("\xA1\xA2".force_encoding("euc-jp"))
t = ss.scan(/./)
assert_equal("\xa1\xa2".force_encoding("euc-jp"), t)
end
def test_set_pos
s = StringScanner.new("test string")
s.pos = 7
assert_equal("ring", s.rest)
end
def test_match_p
s = StringScanner.new("test string")
assert_equal(4, s.match?(/\w+/))
assert_equal(4, s.match?(/\w+/))
assert_equal(nil, s.match?(/\s+/))
end
def test_check
s = StringScanner.new("Foo Bar Baz")
assert_equal("Foo", s.check(/Foo/))
assert_equal(0, s.pos)
assert_equal("Foo", s.matched)
assert_equal(nil, s.check(/Bar/))
assert_equal(nil, s.matched)
end
def test_scan_full
s = StringScanner.new("Foo Bar Baz")
assert_equal(4, s.scan_full(/Foo /, false, false))
assert_equal(0, s.pos)
assert_equal(nil, s.scan_full(/Baz/, false, false))
assert_equal("Foo ", s.scan_full(/Foo /, false, true))
assert_equal(0, s.pos)
assert_equal(nil, s.scan_full(/Baz/, false, false))
assert_equal(4, s.scan_full(/Foo /, true, false))
assert_equal(4, s.pos)
assert_equal(nil, s.scan_full(/Baz /, false, false))
assert_equal("Bar ", s.scan_full(/Bar /, true, true))
assert_equal(8, s.pos)
assert_equal(nil, s.scan_full(/az/, false, false))
end
def test_exist_p
s = StringScanner.new("test string")
assert_equal(3, s.exist?(/s/))
assert_equal(0, s.pos)
s.scan(/test/)
assert_equal(2, s.exist?(/s/))
assert_equal(4, s.pos)
assert_equal(nil, s.exist?(/e/))
end
def test_skip_until
s = StringScanner.new("Foo Bar Baz")
assert_equal(3, s.skip_until(/Foo/))
assert_equal(3, s.pos)
assert_equal(4, s.skip_until(/Bar/))
assert_equal(7, s.pos)
assert_equal(nil, s.skip_until(/Qux/))
end
def test_check_until
s = StringScanner.new("Foo Bar Baz")
assert_equal("Foo", s.check_until(/Foo/))
assert_equal(0, s.pos)
assert_equal("Foo Bar", s.check_until(/Bar/))
assert_equal(0, s.pos)
assert_equal(nil, s.check_until(/Qux/))
end
def test_search_full
s = StringScanner.new("Foo Bar Baz")
assert_equal(8, s.search_full(/Bar /, false, false))
assert_equal(0, s.pos)
assert_equal("Foo Bar ", s.search_full(/Bar /, false, true))
assert_equal(0, s.pos)
assert_equal(8, s.search_full(/Bar /, true, false))
assert_equal(8, s.pos)
assert_equal("Baz", s.search_full(/az/, true, true))
assert_equal(11, s.pos)
end
def test_peek
s = StringScanner.new("test string")
assert_equal("test st", s.peek(7))
assert_equal("test st", s.peek(7))
s.scan(/test/)
assert_equal(" stri", s.peek(5))
assert_equal(" string", s.peek(10))
s.scan(/ string/)
assert_equal("", s.peek(10))
end
def test_unscan
s = StringScanner.new('test string')
assert_equal("test", s.scan(/\w+/))
s.unscan
assert_equal("te", s.scan(/../))
assert_equal(nil, s.scan(/\d/))
assert_raise(ScanError) { s.unscan }
end
def test_rest
s = StringScanner.new('test string')
assert_equal("test string", s.rest)
s.scan(/test/)
assert_equal(" string", s.rest)
s.scan(/ string/)
assert_equal("", s.rest)
s.scan(/ string/)
end
def test_rest_size
s = StringScanner.new('test string')
assert_equal(11, s.rest_size)
s.scan(/test/)
assert_equal(7, s.rest_size)
s.scan(/ string/)
assert_equal(0, s.rest_size)
s.scan(/ string/)
end
def test_inspect
s = StringScanner.new('test string test')
s.scan(/test strin/)
assert_equal('#<StringScanner 10/16 "...strin" @ "g tes...">', s.inspect)
end
end