update test concurrency for isolated tests

Author: ijjk

run-tests.js

@@ -329,9 +329,14 @@ async function main() {
     testNames.map(async (test) => {
       const dirName = path.dirname(test)
       let dirSema = directorySemas.get(dirName)
-      if (dirSema === undefined)
-        directorySemas.set(dirName, (dirSema = new Sema(1)))
-      await dirSema.acquire()
+
+      if (!testType) {
+        // limit integration tests to one active in a directory at a
+        // time, isolated tests (e2e, dev, prod) don't need to be limited
+        if (dirSema === undefined)
+          directorySemas.set(dirName, (dirSema = new Sema(1)))
+        await dirSema.acquire()
+      }
       await sema.acquire()
       let passed = false
 
@@ -383,7 +388,10 @@ async function main() {
         cleanUpAndExit(1)
       }
       sema.release()
-      dirSema.release()
+
+      if (dirSema) {
+        dirSema.release()
+      }
     })
   )