improve code

local/full-coverage/bin/generateFullCoverage.js

@@ -17,13 +17,16 @@ const copyReportFile = (path) => {
       path,
       join(tmpCoverageDirectory, `${basename(dirname(path))}_${Date.now()}.json`)
     );
+    return true;
   }
+  return false;
 };
 
 const generateFullCoverage = async () => {
-  copyReportFile(join(playwrightCoverage, reportFileName));
-  copyReportFile(join(jestCoverage, reportFileName));
+  const copiedPlaywright = copyReportFile(join(playwrightCoverage, reportFileName));
+  const copiedJest = copyReportFile(join(jestCoverage, reportFileName));
 
+  if (copiedPlaywright || copiedJest) {
     const mergeDestination = join(tmpCoverageDirectory, `full_${Date.now()}.json`);
     execSync(`nyc merge ${tmpCoverageDirectory} ${mergeDestination}`);
 
@@ -39,13 +42,18 @@ const generateFullCoverage = async () => {
       `nyc report --reporter=lcov --reporter=clover --reporter=json --report-dir=${coverageDirectory} --temp-dir=${tmpCoverageDirectory}`
       /* { stdio: 'inherit' } */
     );
+
     fs.rmSync(tmpCoverageDirectory, { recursive: true });
+  }
 };
 
 (async () => {
   try {
     await generateFullCoverage();
   } catch (e) {
-    console.error(`Full coverage couldn't be generated.`, e);
+    // console.error(`Full coverage couldn't be generated.`, e);
+    if (fs.existsSync(tmpCoverageDirectory)) {
+      fs.rmSync(tmpCoverageDirectory, { recursive: true });
+    }
   }
 })();

local/playwright-tooling/bin/mergeCoverage.js

@@ -28,6 +28,9 @@ const mergeCoverage = async () => {
   try {
     await mergeCoverage();
   } catch (e) {
-    console.error(`Playwright coverage couldn't be merged.`, e);
+    // console.error(`Playwright coverage couldn't be merged.`, e);
+    if (fs.existsSync(tmpCoverageDirectory)) {
+      fs.rmSync(tmpCoverageDirectory, { recursive: true });
+    }
   }
 })();