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-rw-r--r--tests/test_cmdline.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/tests/test_cmdline.py b/tests/test_cmdline.py
index 20444715..a379d402 100644
--- a/tests/test_cmdline.py
+++ b/tests/test_cmdline.py
@@ -486,6 +486,10 @@ class CmdLineTest(BaseCmdLineTest):
self.command_line("run", ret=ERR)
self.assertIn("Nothing to do", self.stdout())
+ def test_cant_append_parallel(self):
+ self.command_line("run --append --parallel-mode foo.py", ret=ERR)
+ self.assertIn("Can't append to data files in parallel mode.", self.stdout())
+
def test_xml(self):
# coverage xml [-i] [--omit DIR,...] [FILE1 FILE2 ...]
self.cmd_executes("xml", """\