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test_regexpobject.py
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test_regexpobject.py
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from ..base import BaseTopazTest
class TestRegexpObject(BaseTopazTest):
def test_source(self, space):
w_res = space.execute("return /abc/.source")
assert space.str_w(w_res) == "abc"
def test_compile_regexps(self, space):
space.execute("""
/^/
/(a|b)/
/(ab|ac)/
/(ms|min)/
/$/
/[^f]/
/[a]+/
/\\(/
/[()#:]/
/[^()#:]/
/([^)]+)?/
/cy|m/
/[\\-]/
/(?!a)/
/(?=a)/
/a{1}/
/a{2,3}/
/foo(?#comment)bar/
/abc/i
/(?<=\d)/
/(?<foo>.*)/
/A++/
/.*?/
/\\z/
/[a-z]/
/\\d+/
/([a-z])|b/
/[a-zA-z]|[a-z]/
/(?<foo>a)\\g<foo>/
/[^a-z]/
/[a-z&&[^a-c]]/
/[a&&[^b]]+/
/\\G/
/\\p{digit}/
/\\P/
/a{1,}/
/a{,1}/
/(?:abc)?/
/(?:a|b)*/
/.*/m
/(.*|.+)/
/(?<=b)/
""")
def test_regexp_syntax_errors(self, space):
with self.raises(space, "SyntaxError"):
space.execute("/(?~)/")
with self.raises(space, "RegexpError"):
space.execute("""
r = "(?~)"
/#{r}/
""")
with self.raises(space, "RegexpError"):
space.execute("""
class Regexp
def self.new(*args); /foo/; end
def self.compile(*args); /foo/; end
end
r = "(?~)"
/#{r}/
""")
def test_regexp_compile_errors(self, space):
with self.raises(space, "RegexpError"):
space.execute("Regexp.compile '?~'")
with self.raises(space, "RegexpError"):
space.execute("""
class Regexp
def self.new(*args); /foo/; end
end
Regexp.compile "(?~)"
""")
def test_regexp_new_errors(self, space):
with self.raises(space, "RegexpError"):
space.execute("Regexp.new '?~'")
with self.raises(space, "RegexpError"):
space.execute("""
class Regexp
def self.compile(*args); /foo/; end
end
Regexp.new "(?~)"
""")
def test_to_s(self, space):
w_res = space.execute("return /a/.to_s")
assert space.str_w(w_res) == "(?-mix:a)"
w_res = space.execute("return /a/i.to_s")
assert space.str_w(w_res) == "(?i-mx:a)"
def test_match_operator(self, space):
w_res = space.execute("""
idx = /(l)(l)(o)(a)(b)(c)(h)(e)(l)/ =~ 'helloabchello'
return idx, $1, $2, $3, $4, $5, $6, $7, $8, $9, $&, $+, $`, $'
""")
assert self.unwrap(space, w_res) == [2, "l", "l", "o", "a", "b", "c", "h", "e", "l", "lloabchel", "l", "he", "lo"]
def test_match_method(self, space):
w_res = space.execute("return /bc/.match('abc').begin(0)")
assert space.int_w(w_res) == 1
def test_match_begin(self, space):
w_res = space.execute("return /a(bc(de))/.match(' abcde').begin(0)")
assert space.int_w(w_res) == 1
w_res = space.execute("return /a(bc(de))/.match(' abcde').begin(1)")
assert space.int_w(w_res) == 2
w_res = space.execute("return /a(bc(de))/.match(' abcde').begin(2)")
assert space.int_w(w_res) == 4
with self.raises(space, "IndexError", "index 3 out of matches"):
space.execute("/a(bc(de))/.match(' abcde').begin(3)")
def test_match_end(self, space):
w_res = space.execute("return /a(bc(de))f/.match(' abcdef').end(0)")
assert space.int_w(w_res) == 7
w_res = space.execute("return /a(bc(de))f/.match(' abcdef').end(1)")
assert space.int_w(w_res) == 6
w_res = space.execute("return /a(bc(de))f/.match(' abcdef').end(2)")
assert space.int_w(w_res) == 6
with self.raises(space, "IndexError", "index 3 out of matches"):
space.execute("/a(bc(de))/.match(' abcde').end(3)")
def test_new_regexp(self, space):
w_res = space.execute("return Regexp.new('..abc..') == Regexp.compile('..abc..')")
assert w_res is space.w_true
w_res = space.execute("return Regexp.new(/abc/).source")
assert space.str_w(w_res) == "abc"
def test_size(self, space):
w_res = space.execute("""
/(a)(b)(c)/ =~ "hey hey, abc, hey hey"
return $~.size
""")
assert space.int_w(w_res) == 4
def test_set_match_data_wrong_type(self, space):
with self.raises(space, "TypeError"):
space.execute("$~ = 12")
space.execute("$~ = nil")
def test_atomic_grouping(self, space):
w_res = space.execute('return /"(?>.*)"/ =~ (\'"Quote"\')')
assert w_res is space.w_nil
w_res = space.execute('return /"(?>[A-Za-z]*)"/ =~ \'"Quote"\'')
assert space.int_w(w_res) == 0
w_res = space.execute('return /fooA++bar/.match("fooAAAbar").to_a')
assert self.unwrap(space, w_res) == ["fooAAAbar"]
def test_set_intersection(self, space):
w_res = space.execute("return /[a-z&&[^a-c]]+/ =~ 'abcdef'")
assert space.int_w(w_res) == 3
def test_to_a(self, space):
w_res = space.execute("""
m = /(a)(b)(c)/.match('defabcdef')
return m.to_a
""")
assert self.unwrap(space, w_res) == ["abc", "a", "b", "c"]
def test_values_at(self, space):
w_res = space.execute("""
m = /(.)(.)(\d+)(\d)/.match("THX1138: The Movie")
return m.values_at(0, 2, -2)
""")
assert self.unwrap(space, w_res) == ["HX1138", "X", "113"]
def test_branch(self, space):
w_res = space.execute("return /a|b/ =~ 'a'")
assert space.int_w(w_res) == 0
def test_dot(self, space):
w_res = space.execute('return /./ =~ "\\n"')
assert w_res is space.w_nil
w_res = space.execute('return /./m =~ "\\n"')
assert space.int_w(w_res) == 0
def test_non_capturing_group(self, space):
w_res = space.execute("return /(?:foo)(bar)/.match('foobar').to_a")
assert self.unwrap(space, w_res) == ["foobar", "bar"]
def test_optional_group(self, space):
w_res = space.execute("return /(foo)?(bar)?/.match('foobar')[1]")
assert self.unwrap(space, w_res) == "foo"
w_res = space.execute("return /(foo)?(bar)?/.match('foobar')[2]")
assert self.unwrap(space, w_res) == "bar"
w_res = space.execute("return /(foo)?(bar)?/.match('foo')[2]")
assert self.unwrap(space, w_res) == None
def test_quantify_set(self, space):
w_res = space.execute("return /([0-9]){3,5}?/ =~ 'ab12345'")
assert space.int_w(w_res) == 2
def test_quantify(self, space):
w_res = space.execute("return /a{2,4}/.match('aaaaaa').to_a")
assert self.unwrap(space, w_res) == ["aaaa"]
def test_repeated_quantification(self, space):
w_res = space.execute("return /(A{0,1}+)A/.match('AAA').to_a")
assert self.unwrap(space, w_res) == ["AAA", "AA"]
def test_casefoldp(self, space):
w_res = space.execute("return /a/.casefold?")
assert w_res is space.w_false
w_res = space.execute("return /a/i.casefold?")
assert w_res is space.w_true
def test_eqeqeq(self, space):
w_res = space.execute("return /abc/ === 'defabc'")
assert w_res is space.w_true
w_res = space.execute("return /abc/ === 'ddddddd'")
assert w_res is space.w_false
def test_escape(self, space):
w_res = space.execute("""
return Regexp.escape("y1_'\t\n\v\f\r \#$()*+-.?[\\\\]^{|}")
""")
assert space.str_w(w_res) == "y1_'\\t\\n\\v\\f\\r\\ \\#\\$\\(\\)\\*\\+\\-\\.\\?\\[\\\\\\]\\^\\{\\|\\}"
def test_ignore_whitespace(self, space):
w_res = space.execute("return /\d \d/x =~ '12'")
assert space.int_w(w_res) == 0