readme: Include Zulip in used-by section (#1987)

[etc/vim.git] / fuzz.py

diff --git a/fuzz.py b/fuzz.py
index fdd4917f2ec39f620a3deaf5010f7c2152b2e431..6330c58cc810f11b413c8762812806fd0754a970 100644 (file)
--- a/fuzz.py
+++ b/fuzz.py
@@ -42,8 +42,8 @@ def test_idempotent_any_syntatically_valid_python(
     try:
         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 code with it.  See issues #970, #1012, #1358, and #1557.
+        # 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.
         # TODO: remove this try-except block when issues are resolved.
         return
 
@@ -56,4 +56,17 @@ def test_idempotent_any_syntatically_valid_python(
 
 
 if __name__ == "__main__":
+    # Run tests, including shrinking and reporting any known failures.
     test_idempotent_any_syntatically_valid_python()
+
+    # If Atheris is available, run coverage-guided fuzzing.
+    # (if you want only bounded fuzzing, just use `pytest fuzz.py`)
+    try:
+        import sys
+        import atheris
+    except ImportError:
+        pass
+    else:
+        test = test_idempotent_any_syntatically_valid_python
+        atheris.Setup(sys.argv, test.hypothesis.fuzz_one_input)
+        atheris.Fuzz()