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