From b96c3bd3e14831e936b4dd2962bb26cbc493d047 Mon Sep 17 00:00:00 2001
From: Florin Barbu <florin@status.im>
Date: Fri, 13 Oct 2023 17:32:28 +0300
Subject: [PATCH] chore: disable paralles runs locally (#1662)

* disable paralles runs locally

* add logs

* add readme info about local execution
---
 packages/tests/.mocharc.json    |  2 +-
 packages/tests/README.md        |  1 +
 packages/tests/src/run-tests.js | 36 ++++++++++++++++++++-------------
 3 files changed, 24 insertions(+), 15 deletions(-)

diff --git a/packages/tests/.mocharc.json b/packages/tests/.mocharc.json
index 72164c409b..06fc1304b9 100644
--- a/packages/tests/.mocharc.json
+++ b/packages/tests/.mocharc.json
@@ -8,6 +8,6 @@
   ],
   "exit": true,
   "retries": 4,
-  "parallel": true,
+  "parallel": false,
   "jobs": 6
 }
diff --git a/packages/tests/README.md b/packages/tests/README.md
index 9a42689812..99ef6d64fc 100644
--- a/packages/tests/README.md
+++ b/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
 
diff --git a/packages/tests/src/run-tests.js b/packages/tests/src/run-tests.js
index 4d01ddfe1e..6b7c9cc78f 100644
--- a/packages/tests/src/run-tests.js
+++ b/packages/tests/src/run-tests.js
@@ -15,21 +15,29 @@ async function main() {
     console.log("Image pulled");
   }
 
+  const mochaArgs = [
+    "mocha",
+    "--require",
+    "ts-node/register",
+    "--project",
+    "./tsconfig.dev.json",
+    ...process.argv.slice(2)
+  ];
+
+  // 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",
-    [
-      "mocha",
-      "--require",
-      "ts-node/register",
-      "--project",
-      "./tsconfig.dev.json",
-      ...process.argv.slice(2)
-    ],
-    {
-      stdio: "inherit"
-    }
-  );
+  const mocha = spawn("npx", mochaArgs, {
+    stdio: "inherit"
+  });
 
   mocha.on("error", (error) => {
     console.log(`Error running mocha tests: ${error.message}`);