1 files changed, 52 insertions, 0 deletions
diff --git a/tests/test_coffeescript.py b/tests/test_coffeescript.py
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+++ b/tests/test_coffeescript.py
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+"""
+    CoffeeScript tests
+    ~~~~~~~~~~~~~~~~~~
+
+    :copyright: Copyright 2006-2022 by the Pygments team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+import pytest
+
+from pygments.lexers import CoffeeScriptLexer
+from pygments.token import Token
+
+COFFEE_SLASH_GOLDEN = [
+    # input_str, slashes_are_regex_here
+    (r'/\\/', True),
+    (r'/\\/i', True),
+    (r'/\//', True),
+    (r'/(\s)/', True),
+    ('/a{2,8}/', True),
+    ('/b*c?d+/', True),
+    ('/(capture-match)/', True),
+    ('/(?:do-not-capture-match)/', True),
+    ('/this|or|that/', True),
+    ('/[char-set]/', True),
+    ('/[^neg-char_st]/', True),
+    ('/^.*$/', True),
+    (r'/\n(\f)\0\1\d\b\cm\u1234/', True),
+    (r'/^.?([^/\\\n\w]*)a\1+$/.something(or_other) # something more complex', True),
+    ("foo = (str) ->\n  /'|\"/.test str", True),
+    ('a = a / b / c', False),
+    ('a = a/b/c', False),
+    ('a = a/b/ c', False),
+    ('a = a /b/c', False),
+    ('a = 1 + /d/.test(a)', True),
+]
+
+
+@pytest.fixture(scope='module')
+def lexer():
+    yield CoffeeScriptLexer()
+
+
+@pytest.mark.parametrize('golden', COFFEE_SLASH_GOLDEN)
+def test_coffee_slashes(lexer, golden):
+    input_str, slashes_are_regex_here = golden
+    output = list(lexer.get_tokens(input_str))
+    print(output)
+    for t, s in output:
+        if '/' in s:
+            is_regex = t is Token.String.Regex
+            assert is_regex == slashes_are_regex_here, (t, s)