diff --git a/ace-loader/src/compile-plugin.js b/ace-loader/src/compile-plugin.js
index 6e0dffd5215b2b77c12b5298eb4fd274778887e5..1f71854852463adc3dea60bd2f0e44efcd3e4dd3 100644
--- a/ace-loader/src/compile-plugin.js
+++ b/ace-loader/src/compile-plugin.js
@@ -178,11 +178,13 @@ function addCacheFiles(entryFile, cachePath, entryPaths) {
     oldArray.forEach(element => {
       entryPaths.add(element);
     })
-  } else if (!(fs.existsSync(cachePath) && fs.statSync(cachePath).isDirectory())) {
+  } else if (!(process.env.tddMode === 'true') && !(fs.existsSync(cachePath) && fs.statSync(cachePath).isDirectory())) {
     mkDir(cachePath);
   }
   entryArray.push(...entryPaths);
-  fs.writeFileSync(entryFile, JSON.stringify(entryArray));
+  if (fs.existsSync(cachePath) && fs.statSync(cachePath).isDirectory()) {
+    fs.writeFileSync(entryFile, JSON.stringify(entryArray));
+  }
 }
 
 const red = '\u001b[31m';
diff --git a/ace-loader/src/resource-plugin.js b/ace-loader/src/resource-plugin.js
index b2ee9fa0890d891f3e0acb153a39cd23db52cd52..9b4656cad5a1fd89e3a2a003ce1c7ee10ff8cf10 100644
--- a/ace-loader/src/resource-plugin.js
+++ b/ace-loader/src/resource-plugin.js
@@ -457,13 +457,16 @@ function readCSSInfo(watchCSSFiles) {
 }
 
 function writeCSSInfo(filePath, infoObject) {
-  if (!(fs.existsSync(path.resolve(filePath, '..')) && fs.statSync(path.resolve(filePath, '..')).isDirectory())) {
+  if (!(process.env.tddMode === 'true') && !(fs.existsSync(path.resolve(filePath, '..')) &&
+    fs.statSync(path.resolve(filePath, '..')).isDirectory())) {
     mkDir(path.resolve(filePath, '..'));
   }
   if (fs.existsSync(filePath)) {
     fs.unlinkSync(filePath);
   }
-  fs.writeFileSync(filePath, JSON.stringify(infoObject, null, 2));
+  if (fs.existsSync(path.resolve(filePath, '..')) && fs.statSync(path.resolve(filePath, '..')).isDirectory()) {
+    fs.writeFileSync(filePath, JSON.stringify(infoObject, null, 2));
+  }
 }
 
 function setCSSEntry(cssfiles, key) {