2 files changed, 34 insertions, 3 deletions
diff --git a/test/py/conftest.py b/test/py/conftest.py
index 3a9c589..0131c37 100644
--- a/test/py/conftest.py
+++ b/test/py/conftest.py
@@ -8,10 +8,10 @@ import os
 
 from pytest import fixture
 
+from lib import test_repo
 from lib.db import Database
 from lib.net import random_unused_port
 from lib.process import CmdLine
-from lib.test_repo import TestRepoOutputSimple, TestRepoOutputEmpty, TestRepoOutputLong
 
 
 class Param:
@@ -188,8 +188,13 @@ def client(client_cmd):
     return client_cmd
 
 
-@fixture(params=[TestRepoOutputSimple, TestRepoOutputEmpty, TestRepoOutputLong],
-         ids=['output_simple', 'output_empty', 'output_long'])
+@fixture(params=[
+             test_repo.TestRepoOutputSimple,
+             test_repo.TestRepoOutputEmpty,
+             test_repo.TestRepoOutputLong,
+             test_repo.TestRepoOutputNull,
+         ],
+         ids=['output_simple', 'output_empty', 'output_long', 'output_null'])
 def test_repo(tmp_path, request):
     return request.param(os.path.join(tmp_path, 'repo'))
 
diff --git a/test/py/lib/test_repo.py b/test/py/lib/test_repo.py
index 3234de5..b882d57 100644
--- a/test/py/lib/test_repo.py
+++ b/test/py/lib/test_repo.py
@@ -167,3 +167,29 @@ class TestRepoOutputLong(TestRepoOutput):
 
     def run_output_matches(self, output):
         return output.decode() == self.output
+
+
+OUTPUT_SCRIPT_NULL = R'''#!/usr/bin/env python3
+
+output = {output}
+
+import sys
+sys.stdout.buffer.write(output)
+'''
+
+
+class TestRepoOutputNull(TestRepoOutput):
+    __test__ = False
+
+    OUTPUT = b'123\x00456'
+
+    def __init__(self, *args, **kwargs):
+        self.output = TestRepoOutputNull.OUTPUT
+        super().__init__(*args, **kwargs)
+
+    def _format_output_script(self):
+        assert len(self.output) == 7
+        return OUTPUT_SCRIPT_NULL.format(output=repr(self.output))
+
+    def run_output_matches(self, output):
+        return output == self.output