Add script to ease migration to black (#3038)

[etc/vim.git] / fuzz.py

diff --git a/fuzz.py b/fuzz.py
index 6e2068690b539bfe65a3a9f78ceb030a750dfcf8..f5f655ea279fa2e569df1dce3e45479abe0b3bdb 100644 (file)
--- a/fuzz.py
+++ b/fuzz.py
@@ -32,7 +32,9 @@ from blib2to3.pgen2.tokenize import TokenError
         black.FileMode,
         line_length=st.just(88) | st.integers(0, 200),
         string_normalization=st.booleans(),
+        preview=st.booleans(),
         is_pyi=st.booleans(),
+        magic_trailing_comma=st.booleans(),
     ),
 )
 def test_idempotent_any_syntatically_valid_python(
@@ -46,13 +48,13 @@ def test_idempotent_any_syntatically_valid_python(
         dst_contents = black.format_str(src_contents, mode=mode)
     except black.InvalidInput:
         # This is a bug - if it's valid Python code, as above, Black should be
-        # able to cope with it.  See issues #970, #1012, #1358, and #1557.
+        # able to cope with it.  See issues #970, #1012
         # TODO: remove this try-except block when issues are resolved.
         return
     except TokenError as e:
-        if (
+        if (  # Special-case logic for backslashes followed by newlines or end-of-input
             e.args[0] == "EOF in multi-line statement"
-            and re.search(r"\r?\n\\\r?\n", src_contents) is not None
+            and re.search(r"\\($|\r?\n)", src_contents) is not None
         ):
             # This is a bug - if it's valid Python code, as above, Black should be
             # able to cope with it.  See issue #1012.