fix: ensure pact dir exists

Signed-off-by: JP-Ellis <[email protected]>

src/pact/message_pact.py

@@ -3,6 +3,7 @@
 
 import json
 import os
+from pathlib import Path
 from subprocess import Popen
 import warnings
 
@@ -97,7 +98,7 @@ def __init__(
 
         self.consumer = consumer
         self.file_write_mode = file_write_mode
-        self.pact_dir = pact_dir or os.getcwd()
+        self.pact_dir = Path(pact_dir or os.getcwd()).resolve()
         self.provider = provider
         self.publish_to_broker = publish_to_broker
         self.version = version
@@ -176,11 +177,16 @@ def write_to_pact_file(self):
 
         :rtype: int
         """
+        if not self.pact_dir.exists():
+            self.pact_dir.mkdir(parents=True)
+        elif not self.pact_dir.is_dir():
+            raise NotADirectoryError(f"{self.pact_dir} is not a directory")
+
         command = [
             MESSAGE_PATH,
             "update",
             json.dumps(self._messages[0]),
-            "--pact-dir", self.pact_dir,
+            "--pact-dir", str(self.pact_dir),
             f"--pact-specification-version={self.version}",
             "--consumer", f"{self.consumer.name}",
             "--provider", f"{self.provider.name}",