From e282874fe3ca164ccae0e6284d6003cde2176464 Mon Sep 17 00:00:00 2001
From: David Anson <david@dlaa.me>
Date: Wed, 30 Aug 2023 22:34:21 -0700
Subject: [PATCH] Add a test for micromark helpers filterByPredicate and
 filterByTypes to ensure they return the same token lists for "all tokens".

---
 test/markdownlint-test-micromark.mjs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/test/markdownlint-test-micromark.mjs b/test/markdownlint-test-micromark.mjs
index ca78f293..011c34da 100644
--- a/test/markdownlint-test-micromark.mjs
+++ b/test/markdownlint-test-micromark.mjs
@@ -45,3 +45,12 @@ test("filterByTypes", async(t) => {
     t.true(token.type.endsWith("Text"));
   }
 });
+
+test("filterByPredicate/filterByTypes", async(t) => {
+  t.plan(1);
+  const tokens = await testTokens;
+  const byPredicate = filterByPredicate(tokens, () => true);
+  const allTypes = new Set(byPredicate.map(((token) => token.type)));
+  const byTypes = filterByTypes(tokens, [ ...allTypes.values() ]);
+  t.deepEqual(byPredicate, byTypes);
+});