From b131639cc545af23e568feb68e7d5c14c2778b20 Mon Sep 17 00:00:00 2001
From: Michael H <git@riskymh.dev>
Date: Sat, 8 Nov 2025 16:49:58 +1100
Subject: [PATCH] ci: run modified tests first (#24463)

Co-authored-by: Meghan Denny <meghan@bun.com>
---
 scripts/runner.node.mjs        | 21 +++++++++++++++++++++
 test/cli/console-depth.test.ts |  2 +-
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/scripts/runner.node.mjs b/scripts/runner.node.mjs
index abdf911968..dd566d2b27 100755
--- a/scripts/runner.node.mjs
+++ b/scripts/runner.node.mjs
@@ -1891,6 +1891,27 @@ function getRelevantTests(cwd, testModifiers, testExpectations) {
     filteredTests.push(...availableTests);
   }
 
+  // Prioritize modified test files
+  if (allFiles.length > 0) {
+    const modifiedTests = new Set(
+      allFiles
+        .filter(filename => filename.startsWith("test/") && isTest(filename))
+        .map(filename => filename.slice("test/".length)),
+    );
+
+    if (modifiedTests.size > 0) {
+      return filteredTests
+        .map(testPath => testPath.replaceAll("\\", "/"))
+        .sort((a, b) => {
+          const aModified = modifiedTests.has(a);
+          const bModified = modifiedTests.has(b);
+          if (aModified && !bModified) return -1;
+          if (!aModified && bModified) return 1;
+          return 0;
+        });
+    }
+  }
+
   return filteredTests;
 }
 
diff --git a/test/cli/console-depth.test.ts b/test/cli/console-depth.test.ts
index 5cb8cf4df4..9660d73b73 100644
--- a/test/cli/console-depth.test.ts
+++ b/test/cli/console-depth.test.ts
@@ -28,7 +28,7 @@ describe("console depth", () => {
 
   function normalizeOutput(output: string): string {
     // Normalize line endings and trim whitespace
-    return output.replace(/\r\n/g, "\n").replace(/\r/g, "\n").trim();
+    return output.replace(/\r\n?/g, "\n").trim();
   }
 
   test("default console depth should be 2", async () => {