From 023320fe9bfc74906e408dc7fe93071a2fe066ba Mon Sep 17 00:00:00 2001
From: Justin Ridgewell <justin@ridgewell.name>
Date: Tue, 31 Aug 2021 02:14:37 -0400
Subject: [PATCH] Add ability to grep for test compress test case

---
 test/compress.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/test/compress.js b/test/compress.js
index dd18e06db..f2bf315f3 100644
--- a/test/compress.js
+++ b/test/compress.js
@@ -290,7 +290,9 @@ async function run_compress_tests() {
             return true;
         }
         var tests = parse_test(path.resolve(dir, file));
+        let { GREP } = process.env;
         for (var i in tests) if (tests.hasOwnProperty(i)) {
+            if (GREP && !i.includes(GREP)) continue;
             if (!await test_case(tests[i])) {
                 failures++;
                 failed_files[file] = 1;