1 files changed, 15 insertions, 0 deletions
diff --git a/tests/unix2dos.py b/tests/unix2dos.py
new file mode 100755
index 0000000..4e6c9cf
--- /dev/null
+++ b/tests/unix2dos.py
@@ -0,0 +1,15 @@
+#!/usr/bin/env python3
+import sys
+
+buf = ""
+with open(sys.argv[1], 'r+b') as f:
+    buf = f.read()
+
+if buf.find(b'\r\n'):
+    print(f"{sys.argv[1]} is already a CRLF file")
+    sys.exit(1)
+
+buf = buf.replace(b'\n', b'\r\n')
+
+with open(sys.argv[1], 'w+b') as f:
+    f.write(buf)