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Diffstat (limited to 'tests/utils/jslex.py')
| -rw-r--r-- | tests/utils/jslex.py | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/tests/utils/jslex.py b/tests/utils/jslex.py new file mode 100644 index 0000000000..a2af7b4bcf --- /dev/null +++ b/tests/utils/jslex.py @@ -0,0 +1,216 @@ +"""Tests for jslex.""" +# encoding: utf-8 +# originally from https://bitbucket.org/ned/jslex + +from django.test import TestCase +from django.utils.jslex import JsLexer, prepare_js_for_gettext + +class JsTokensTest(TestCase): + LEX_CASES = [ + # ids + ("a ABC $ _ a123", ["id a", "id ABC", "id $", "id _", "id a123"]), + (r"\u1234 abc\u0020 \u0065_\u0067", [r"id \u1234", r"id abc\u0020", r"id \u0065_\u0067"]), + # numbers + ("123 1.234 0.123e-3 0 1E+40 1e1 .123", ["dnum 123", "dnum 1.234", "dnum 0.123e-3", "dnum 0", "dnum 1E+40", "dnum 1e1", "dnum .123"]), + ("0x1 0xabCD 0XABcd", ["hnum 0x1", "hnum 0xabCD", "hnum 0XABcd"]), + ("010 0377 090", ["onum 010", "onum 0377", "dnum 0", "dnum 90"]), + ("0xa123ghi", ["hnum 0xa123", "id ghi"]), + # keywords + ("function Function FUNCTION", ["keyword function", "id Function", "id FUNCTION"]), + ("const constructor in inherits", ["keyword const", "id constructor", "keyword in", "id inherits"]), + ("true true_enough", ["reserved true", "id true_enough"]), + # strings + (''' 'hello' "hello" ''', ["string 'hello'", 'string "hello"']), + (r""" 'don\'t' "don\"t" '"' "'" '\'' "\"" """, + [r"""string 'don\'t'""", r'''string "don\"t"''', r"""string '"'""", r'''string "'"''', r"""string '\''""", r'''string "\""''']), + (r'"ƃuıxǝ⅂ ʇdıɹɔsɐʌɐſ\""', [r'string "ƃuıxǝ⅂ ʇdıɹɔsɐʌɐſ\""']), + # comments + ("a//b", ["id a", "linecomment //b"]), + ("/****/a/=2//hello", ["comment /****/", "id a", "punct /=", "dnum 2", "linecomment //hello"]), + ("/*\n * Header\n */\na=1;", ["comment /*\n * Header\n */", "id a", "punct =", "dnum 1", "punct ;"]), + # punctuation + ("a+++b", ["id a", "punct ++", "punct +", "id b"]), + # regex + (r"a=/a*/,1", ["id a", "punct =", "regex /a*/", "punct ,", "dnum 1"]), + (r"a=/a*[^/]+/,1", ["id a", "punct =", "regex /a*[^/]+/", "punct ,", "dnum 1"]), + (r"a=/a*\[^/,1", ["id a", "punct =", r"regex /a*\[^/", "punct ,", "dnum 1"]), + (r"a=/\//,1", ["id a", "punct =", r"regex /\//", "punct ,", "dnum 1"]), + + # next two are from http://www.mozilla.org/js/language/js20-2002-04/rationale/syntax.html#regular-expressions + ("""for (var x = a in foo && "</x>" || mot ? z:/x:3;x<5;y</g/i) {xyz(x++);}""", + ["keyword for", "punct (", "keyword var", "id x", "punct =", "id a", "keyword in", + "id foo", "punct &&", 'string "</x>"', "punct ||", "id mot", "punct ?", "id z", + "punct :", "regex /x:3;x<5;y</g", "punct /", "id i", "punct )", "punct {", + "id xyz", "punct (", "id x", "punct ++", "punct )", "punct ;", "punct }"]), + ("""for (var x = a in foo && "</x>" || mot ? z/x:3;x<5;y</g/i) {xyz(x++);}""", + ["keyword for", "punct (", "keyword var", "id x", "punct =", "id a", "keyword in", + "id foo", "punct &&", 'string "</x>"', "punct ||", "id mot", "punct ?", "id z", + "punct /", "id x", "punct :", "dnum 3", "punct ;", "id x", "punct <", "dnum 5", + "punct ;", "id y", "punct <", "regex /g/i", "punct )", "punct {", + "id xyz", "punct (", "id x", "punct ++", "punct )", "punct ;", "punct }"]), + + # Various "illegal" regexes that are valid according to the std. + (r"""/????/, /++++/, /[----]/ """, ["regex /????/", "punct ,", "regex /++++/", "punct ,", "regex /[----]/"]), + + # Stress cases from http://stackoverflow.com/questions/5533925/what-javascript-constructs-does-jslex-incorrectly-lex/5573409#5573409 + (r"""/\[/""", [r"""regex /\[/"""]), + (r"""/[i]/""", [r"""regex /[i]/"""]), + (r"""/[\]]/""", [r"""regex /[\]]/"""]), + (r"""/a[\]]/""", [r"""regex /a[\]]/"""]), + (r"""/a[\]]b/""", [r"""regex /a[\]]b/"""]), + (r"""/[\]/]/gi""", [r"""regex /[\]/]/gi"""]), + (r"""/\[[^\]]+\]/gi""", [r"""regex /\[[^\]]+\]/gi"""]), + (""" + rexl.re = { + NAME: /^(?!\d)(?:\w)+|^"(?:[^"]|"")+"/, + UNQUOTED_LITERAL: /^@(?:(?!\d)(?:\w|\:)+|^"(?:[^"]|"")+")\[[^\]]+\]/, + QUOTED_LITERAL: /^'(?:[^']|'')*'/, + NUMERIC_LITERAL: /^[0-9]+(?:\.[0-9]*(?:[eE][-+][0-9]+)?)?/, + SYMBOL: /^(?:==|=|<>|<=|<|>=|>|!~~|!~|~~|~|!==|!=|!~=|!~|!|&|\||\.|\:|,|\(|\)|\[|\]|\{|\}|\?|\:|;|@|\^|\/\+|\/|\*|\+|-)/ + }; + """, + ["id rexl", "punct .", "id re", "punct =", "punct {", + "id NAME", "punct :", r"""regex /^(?!\d)(?:\w)+|^"(?:[^"]|"")+"/""", "punct ,", + "id UNQUOTED_LITERAL", "punct :", r"""regex /^@(?:(?!\d)(?:\w|\:)+|^"(?:[^"]|"")+")\[[^\]]+\]/""", "punct ,", + "id QUOTED_LITERAL", "punct :", r"""regex /^'(?:[^']|'')*'/""", "punct ,", + "id NUMERIC_LITERAL", "punct :", r"""regex /^[0-9]+(?:\.[0-9]*(?:[eE][-+][0-9]+)?)?/""", "punct ,", + "id SYMBOL", "punct :", r"""regex /^(?:==|=|<>|<=|<|>=|>|!~~|!~|~~|~|!==|!=|!~=|!~|!|&|\||\.|\:|,|\(|\)|\[|\]|\{|\}|\?|\:|;|@|\^|\/\+|\/|\*|\+|-)/""", + "punct }", "punct ;" + ]), + + (""" + rexl.re = { + NAME: /^(?!\d)(?:\w)+|^"(?:[^"]|"")+"/, + UNQUOTED_LITERAL: /^@(?:(?!\d)(?:\w|\:)+|^"(?:[^"]|"")+")\[[^\]]+\]/, + QUOTED_LITERAL: /^'(?:[^']|'')*'/, + NUMERIC_LITERAL: /^[0-9]+(?:\.[0-9]*(?:[eE][-+][0-9]+)?)?/, + SYMBOL: /^(?:==|=|<>|<=|<|>=|>|!~~|!~|~~|~|!==|!=|!~=|!~|!|&|\||\.|\:|,|\(|\)|\[|\]|\{|\}|\?|\:|;|@|\^|\/\+|\/|\*|\+|-)/ + }; + str = '"'; + """, + ["id rexl", "punct .", "id re", "punct =", "punct {", + "id NAME", "punct :", r"""regex /^(?!\d)(?:\w)+|^"(?:[^"]|"")+"/""", "punct ,", + "id UNQUOTED_LITERAL", "punct :", r"""regex /^@(?:(?!\d)(?:\w|\:)+|^"(?:[^"]|"")+")\[[^\]]+\]/""", "punct ,", + "id QUOTED_LITERAL", "punct :", r"""regex /^'(?:[^']|'')*'/""", "punct ,", + "id NUMERIC_LITERAL", "punct :", r"""regex /^[0-9]+(?:\.[0-9]*(?:[eE][-+][0-9]+)?)?/""", "punct ,", + "id SYMBOL", "punct :", r"""regex /^(?:==|=|<>|<=|<|>=|>|!~~|!~|~~|~|!==|!=|!~=|!~|!|&|\||\.|\:|,|\(|\)|\[|\]|\{|\}|\?|\:|;|@|\^|\/\+|\/|\*|\+|-)/""", + "punct }", "punct ;", + "id str", "punct =", """string '"'""", "punct ;", + ]), + + (r""" this._js = "e.str(\"" + this.value.replace(/\\/g, "\\\\").replace(/"/g, "\\\"") + "\")"; """, + ["keyword this", "punct .", "id _js", "punct =", r'''string "e.str(\""''', "punct +", "keyword this", "punct .", + "id value", "punct .", "id replace", "punct (", r"regex /\\/g", "punct ,", r'string "\\\\"', "punct )", + "punct .", "id replace", "punct (", r'regex /"/g', "punct ,", r'string "\\\""', "punct )", "punct +", + r'string "\")"', "punct ;"]), + ] + +def make_function(input, toks): + def test_func(self): + lexer = JsLexer() + result = ["%s %s" % (name, tok) for name, tok in lexer.lex(input) if name != 'ws'] + self.assertListEqual(result, toks) + return test_func + +for i, (input, toks) in enumerate(JsTokensTest.LEX_CASES): + setattr(JsTokensTest, "test_case_%d" % i, make_function(input, toks)) + + +GETTEXT_CASES = ( + ( + r""" + a = 1; /* /[0-9]+/ */ + b = 0x2a0b / 1; // /[0-9]+/ + c = 3; + """, + r""" + a = 1; /* /[0-9]+/ */ + b = 0x2a0b / 1; // /[0-9]+/ + c = 3; + """ + ), ( + r""" + a = 1.234e-5; + /* + * /[0-9+/ + */ + b = .0123; + """, + r""" + a = 1.234e-5; + /* + * /[0-9+/ + */ + b = .0123; + """ + ), ( + r""" + x = y / z; + alert(gettext("hello")); + x /= 3; + """, + r""" + x = y / z; + alert(gettext("hello")); + x /= 3; + """ + ), ( + r""" + s = "Hello \"th/foo/ere\""; + s = 'He\x23llo \'th/foo/ere\''; + s = 'slash quote \", just quote "'; + """, + r""" + s = "Hello \"th/foo/ere\""; + s = "He\x23llo \'th/foo/ere\'"; + s = "slash quote \", just quote \""; + """ + ), ( + r""" + s = "Line continuation\ + continued /hello/ still the string";/hello/; + """, + r""" + s = "Line continuation\ + continued /hello/ still the string";"REGEX"; + """ + ), ( + r""" + var regex = /pattern/; + var regex2 = /matter/gm; + var regex3 = /[*/]+/gm.foo("hey"); + """, + r""" + var regex = "REGEX"; + var regex2 = "REGEX"; + var regex3 = "REGEX".foo("hey"); + """ + ), ( + r""" + for (var x = a in foo && "</x>" || mot ? z:/x:3;x<5;y</g/i) {xyz(x++);} + for (var x = a in foo && "</x>" || mot ? z/x:3;x<5;y</g/i) {xyz(x++);} + """, + r""" + for (var x = a in foo && "</x>" || mot ? z:"REGEX"/i) {xyz(x++);} + for (var x = a in foo && "</x>" || mot ? z/x:3;x<5;y<"REGEX") {xyz(x++);} + """ + ), ( + r""" + \u1234xyz = gettext('Hello there'); + """, r""" + Uu1234xyz = gettext("Hello there"); + """ + ) +) + + +class JsToCForGettextTest(TestCase): + pass + +def make_function(js, c): + def test_func(self): + self.assertMultiLineEqual(prepare_js_for_gettext(js), c) + return test_func + +for i, pair in enumerate(GETTEXT_CASES): + setattr(JsToCForGettextTest, "test_case_%d" % i, make_function(*pair)) |