From 646a67b8bd5d7cf47a66256a23fb496b9f358dad Mon Sep 17 00:00:00 2001
From: David Anson <david@dlaa.me>
Date: Tue, 15 Jun 2021 22:25:51 -0700
Subject: [PATCH] Add more test coverage for additionalProperties in config
 schema.

---
 test/markdownlint-test.js | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/test/markdownlint-test.js b/test/markdownlint-test.js
index 32b73edc..174e43f3 100644
--- a/test/markdownlint-test.js
+++ b/test/markdownlint-test.js
@@ -1010,6 +1010,22 @@ test("validateConfigSchemaAllowsUnknownProperties", (t) => {
   });
 });
 
+test("validateConfigSchemaAppliesToUnknownProperties", (t) => {
+  t.plan(4);
+  for (const allowed of [ true, {} ]) {
+    t.true(
+      // @ts-ignore
+      tv4.validate({ "property": allowed }, configSchema),
+      `Unknown property value ${allowed} blocked`);
+  }
+  for (const blocked of [ 2, "string" ]) {
+    t.false(
+      // @ts-ignore
+      tv4.validate({ "property": blocked }, configSchema),
+      `Unknown property value ${blocked} allowed`);
+  }
+});
+
 test("validateConfigExampleJson", (t) => {
   t.plan(2);