chore: disable paralles runs locally (#1662)

* disable paralles runs locally

* add logs

* add readme info about local execution

packages/tests/.mocharc.json

@@ -8,6 +8,6 @@
   ],
   "exit": true,
   "retries": 4,
-  "parallel": true,
+  "parallel": false,
   "jobs": 6
 }

packages/tests/README.md

@@ -40,6 +40,7 @@ Therefore, you need to have `docker` installed on your machine to run the tests.
     WAKUNODE_IMAGE=image-name npm run test:node
     ```
 
+- Locally, tests are executed serially, allowing the use of **.only** for focused testing. If you wish to run all tests locally and expedite the process, you can enable parallel execution in the Mocha configuration.
 
 # Running tests in the CI
 

packages/tests/src/run-tests.js

@@ -15,21 +15,29 @@ async function main() {
     console.log("Image pulled");
   }
 
-  // Run mocha tests
-  const mocha = spawn(
-    "npx",
-    [
+  const mochaArgs = [
     "mocha",
     "--require",
     "ts-node/register",
     "--project",
     "./tsconfig.dev.json",
     ...process.argv.slice(2)
-    ],
-    {
-      stdio: "inherit"
-    }
+  ];
+
+  // If in CI, add --parallel
+  if (process.env.CI) {
+    mochaArgs.push("--parallel");
+    console.log("Running tests in parallel");
+  } else {
+    console.log(
+      "Running tests serially. To enable parallel execution update mocha config"
     );
+  }
+
+  // Run mocha tests
+  const mocha = spawn("npx", mochaArgs, {
+    stdio: "inherit"
+  });
 
   mocha.on("error", (error) => {
     console.log(`Error running mocha tests: ${error.message}`);