diff --git a/llvm/utils/git/code-format-helper.py b/llvm/utils/git/code-format-helper.py
index c45bb4d935d47..db2d4c5c52273 100644
--- a/llvm/utils/git/code-format-helper.py
+++ b/llvm/utils/git/code-format-helper.py
@@ -148,6 +148,11 @@ def format_run(
             args.end_rev,
             "--",
         ] + cpp_files
+
+        # For manual testing purposes...
+        if "INDUCE_FAILURE_IN_FORMATTER" in " ".join(cpp_files):
+            cf_cmd.insert(1, "--induce-failure")
+
         print(f"Running: {' '.join(cf_cmd)}")
         self.cf_cmd = cf_cmd
         proc = subprocess.run(cf_cmd, capture_output=True)
@@ -192,6 +197,11 @@ def format_run(
             "-r",
             f"{args.start_rev}..{args.end_rev}",
         ] + py_files
+
+        # For manual testing purposes...
+        if "INDUCE_FAILURE_IN_FORMATTER" in " ".join(py_files):
+            darker_cmd += ["--induce-failure"]
+
         print(f"Running: {' '.join(darker_cmd)}")
         self.darker_cmd = darker_cmd
         proc = subprocess.run(darker_cmd, capture_output=True)
diff --git a/llvm/utils/git/test1.cpp b/llvm/utils/git/test1.cpp
new file mode 100644
index 0000000000000..fc2ab24e7d5f4
--- /dev/null
+++ b/llvm/utils/git/test1.cpp
@@ -0,0 +1,4 @@
+int main()
+{
+        return 1  +2;
+}
\ No newline at end of file
diff --git a/llvm/utils/git/test1.py b/llvm/utils/git/test1.py
new file mode 100644
index 0000000000000..0e81f925a140c
--- /dev/null
+++ b/llvm/utils/git/test1.py
@@ -0,0 +1,4 @@
+
+def main():
+          return \
+          1 +2
\ No newline at end of file