perf(test): trim fixture and serialization overhead in integration suites

test/git-hooks-pre-commit.test.ts

@@ -8,12 +8,13 @@ const baseGitEnv = {
   GIT_CONFIG_NOSYSTEM: "1",
   GIT_TERMINAL_PROMPT: "0",
 };
+const baseRunEnv: NodeJS.ProcessEnv = { ...process.env, ...baseGitEnv };
 
 const run = (cwd: string, cmd: string, args: string[] = [], env?: NodeJS.ProcessEnv) => {
   return execFileSync(cmd, args, {
     cwd,
     encoding: "utf8",
-    env: { ...process.env, ...baseGitEnv, ...env },
+    env: env ? { ...baseRunEnv, ...env } : baseRunEnv,
   }).trim();
 };
 

test/scripts/ios-team-id.test.ts

@@ -84,10 +84,11 @@ function runScript(
   stdout: string;
   stderr: string;
 } {
-  const cacheKey = JSON.stringify({
-    homeDir,
-    extraEnv: Object.entries(extraEnv).toSorted(([a], [b]) => a.localeCompare(b)),
-  });
+  const extraEnvKey = Object.keys(extraEnv)
+    .toSorted((a, b) => a.localeCompare(b))
+    .map((key) => `${key}=${extraEnv[key] ?? ""}`)
+    .join("\u0001");
+  const cacheKey = `${homeDir}\u0000${extraEnvKey}`;
   const cached = runScriptCache.get(cacheKey);
   if (cached) {
     return cached;