From 7366feb46f25d07c60d1fcaa941f8d0613dbd764 Mon Sep 17 00:00:00 2001
From: Ned Batchelder <ned@nedbatchelder.com>
Date: Sat, 31 Dec 2022 07:16:48 -0500
Subject: test: add a test of unknown dynamic-context

---
 tests/test_api.py | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'tests/test_api.py')

diff --git a/tests/test_api.py b/tests/test_api.py
index ee24aa8f..6b53b05d 100644
--- a/tests/test_api.py
+++ b/tests/test_api.py
@@ -706,6 +706,12 @@ class ApiTest(CoverageTest):
         cov.stop()                                                      # pragma: nested
         assert_coverage_warnings(warns, "Conflicting dynamic contexts (dynamic-conflict)")
 
+    def test_unknown_dynamic_context(self):
+        cov = coverage.Coverage()
+        cov.set_option("run:dynamic_context", "no-idea")
+        with pytest.raises(Exception, match="Don't understand dynamic_context setting: 'no-idea'"):
+            cov.start()
+
     def test_switch_context_unstarted(self):
         # Coverage must be started to switch context
         msg = "Cannot switch context, coverage is not started"
-- 
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