diff --git a/tests/mongo-wrapper-unit.test.js b/tests/mongo-wrapper-unit.test.js
index 8591ce6..b9e7fc3 100644
--- a/tests/mongo-wrapper-unit.test.js
+++ b/tests/mongo-wrapper-unit.test.js
@@ -23,17 +23,21 @@ describe("MTWrapper unit tests", function () {
         const mtOptions = new MTOptions({
             db: testDbName,
             port: testFixedPort,
-            path: testBackupDirectory
+            path: testBackupDirectory,
+            username:"myUser",
+            password:"myPass"
         });
 
         const command = wrapper.commandConnectFromOptions(mtOptions, '--beginning');
 
-        command.should.be.eql("--beginning --host 127.0.0.1 --port 17017 --username root --password mypass --authenticationDatabase admin --db myDbForTest");
+        command.should.be.eql("--beginning --host 127.0.0.1 --port 17017 --username myUser --password myPass --authenticationDatabase admin --db myDbForTest");
     });
 
     it("should wrap dump commandConnectFromOptions uri ssl", async function () {
         const mtOptions = new MTOptions({
             uri: testDbUri,
+            username:"myUser",
+            password:"myPass",
             ssl: "1",
             sslCAFile: "/tmp/myCAfile",
             sslPEMKeyFile: "/tmp/pem/sslPEMKeyFile",
@@ -45,7 +49,7 @@ describe("MTWrapper unit tests", function () {
 
         const command = wrapper.commandConnectFromOptions(mtOptions, '--beginning');
 
-        command.should.be.eql("--beginning --uri mongodb://root:mypass@127.0.0.1:17017/myDbForTest?authSource=admin "
+        command.should.be.eql(`--beginning --uri ${testDbUri} `
             + "--ssl --sslCAFile /tmp/myCAfile --sslPEMKeyFile /tmp/pem/sslPEMKeyFile --sslPEMKeyPassword strongPassHere "
             + "--sslCRLFile /tmp/pem/sslCRLFile --sslFIPSMode --tlsInsecure");
     });
@@ -54,12 +58,14 @@ describe("MTWrapper unit tests", function () {
         const mtOptions = new MTOptions({
             db: testDbName,
             port: testFixedPort,
-            path: testBackupDirectory
+            path: testBackupDirectory,
+            username:"myUser",
+            password:"myPass",
         });
 
         const command = wrapper.commandConnectFromOptions(mtOptions, '--beginning', true);
 
-        command.should.be.eql("--beginning --host 127.0.0.1 --port 17017 --username root --password mypass --authenticationDatabase admin --nsInclude myDbForTest.*");
+        command.should.be.eql("--beginning --host 127.0.0.1 --port 17017 --username myUser --password myPass --authenticationDatabase admin --nsInclude myDbForTest.*");
     });
 
     it("should wrap restore commandConnectFromOptions db user basic source and target dbs", async function () {
@@ -68,12 +74,14 @@ describe("MTWrapper unit tests", function () {
             dbFrom: testSourceDbName,
             dbTo: testTargetDbName,
             port: testFixedPort,
-            path: testBackupDirectory
+            path: testBackupDirectory,
+            username:"myUser",
+            password:"myPass",
         });
 
         const command = wrapper.commandConnectFromOptions(mtOptions, '--beginning', true);
 
-        command.should.be.eql("--beginning --host 127.0.0.1 --port 17017 --username root --password mypass --authenticationDatabase admin --nsFrom mySourceDbForTest.* --nsTo myTargetDbForTest.*");
+        command.should.be.eql("--beginning --host 127.0.0.1 --port 17017 --username myUser --password myPass --authenticationDatabase admin --nsFrom mySourceDbForTest.* --nsTo myTargetDbForTest.*");
     });
 
     it("should wrap restore commandConnectFromOptions uri ssl", async function () {
@@ -91,7 +99,7 @@ describe("MTWrapper unit tests", function () {
         const command = wrapper.commandConnectFromOptions(mtOptions, '--beginning', true);
 
         command.should.be.eql(
-            "--beginning --uri mongodb://root:mypass@127.0.0.1:17017/myDbForTest?authSource=admin "
+            `--beginning --uri ${testDbUri} `
             + "--ssl --sslCAFile /tmp/myCAFile --sslPEMKeyFile /tmp/pem/sslPEMKeyFile --sslPEMKeyPassword strongPassHere "
             + "--sslCRLFile /tmp/pem/sslCRLFile --sslFIPSMode --tlsInsecure");
     });
diff --git a/tests/tests-utils.js b/tests/tests-utils.js
index 177590f..9f58403 100644
--- a/tests/tests-utils.js
+++ b/tests/tests-utils.js
@@ -1,5 +1,11 @@
 import mongoose from 'mongoose';
 
+// set 3sec timeout to avoid waiting 30 seconds on misconfiguration:
+// warn: this may produce flaky issues on some host with network latency
+const serverSelectionTimeoutMS = 3000;// https://mongoosejs.com/docs/connections.html#serverselectiontimeoutms
+const socketTimeoutMS = 3000;// https://mongoosejs.com/docs/api/mongoose.html#Mongoose.prototype.connect()
+const MONGOOSE_CONNECT_OPTIONS = {serverSelectionTimeoutMS, socketTimeoutMS};
+
 const mtMochaTests = mongoose.model('MT-mocha-tests', new mongoose.Schema({
     _id: String,
     string: String
@@ -12,7 +18,7 @@ const givenDocumentData = (i) => {
 export const createDatabaseWithNDocs = async (uri, info = "", nbDocs = 2) => {
     console.log(`  ▶ create test database ${info} with ${nbDocs} documents`);
     try {
-        await mongoose.connect(uri, {});
+        await mongoose.connect(uri, MONGOOSE_CONNECT_OPTIONS);
         for (let i = 0; i < nbDocs; i++) {
             await mtMochaTests.create(givenDocumentData(i));
         }
@@ -23,7 +29,7 @@ export const createDatabaseWithNDocs = async (uri, info = "", nbDocs = 2) => {
 
 export const countDocumentsInCollection = async uri => {
     try {
-        await mongoose.connect(uri, {});
+        await mongoose.connect(uri, MONGOOSE_CONNECT_OPTIONS);
         return await mtMochaTests.countDocuments();
     } finally {
         await mongoose.disconnect();
@@ -33,7 +39,13 @@ export const countDocumentsInCollection = async uri => {
 export const dropDatabase = async (uri, info = "") => {
     console.log(`  ▶ drop test database ${info}`);
     try {
-        await mongoose.connect(uri, {});
+        try {
+            await mongoose.connect(uri, MONGOOSE_CONNECT_OPTIONS);
+        } catch (veryFirstConnectError) {
+            console.warn("⚠️ integration test require ready-to-use mongo connection,\nℹ️ please review you test environment variables");
+            console.error(`❌ Unable to connect to test database (${uri}) - error : ${veryFirstConnectError.message}`);
+            process.exit(1)
+        }
         await mongoose.connection.dropDatabase();
     } finally {
         await mongoose.disconnect();