diff --git a/tests/openvidu-angular-web-tutorial.spec.js b/tests/openvidu-angular-web-tutorial.spec.js
index 0cb9c872..e8c83928 100644
--- a/tests/openvidu-angular-web-tutorial.spec.js
+++ b/tests/openvidu-angular-web-tutorial.spec.js
@@ -30,6 +30,10 @@ test('Checking for the presence of two active webcams in an OpenVidu session', a
     await page1.waitForSelector('#session', { visible: true });
     await page1.waitForTimeout(5000);
 
+    var videoElements = await page1.$$('video');
+
+    expect(videoElements.length).toEqual(2);
+
     // Capture a screenshot of page1 and save it to a file.
     await page1.screenshot({ path: '../results/screenshots/page1_screenshot.png' });
 
@@ -47,7 +51,7 @@ test('Checking for the presence of two active webcams in an OpenVidu session', a
     await page2.screenshot({ path: '../results/screenshots/page2_screenshot.png' });
 
     // Find HTML elements that contain video streams on page2.
-    const videoElements = await page2.$$('video');
+    videoElements = await page2.$$('video');
 
     // Check that there are exactly three elements found (should it be three or two?).
     expect(videoElements.length).toEqual(3);
diff --git a/tests/openvidu-getaroom-test.spec.js b/tests/openvidu-getaroom-test.spec.js
index 40e2f935..3e5657b2 100644
--- a/tests/openvidu-getaroom-test.spec.js
+++ b/tests/openvidu-getaroom-test.spec.js
@@ -35,6 +35,10 @@ test('Checking for the presence of two active webcams in an OpenVidu session', a
     // Get the value of the 'input#copy-input' element.
     const inputValue = await page1.$eval('input#copy-input', (input) => input.value);
 
+    var videoElements = await page1.$$('video');
+
+    expect(videoElements.length).toEqual(1);
+
     // Capture a screenshot of page1 and save it to a file.
     await page1.screenshot({ path: '../results/screenshots/page1_screenshot.png' });
     
@@ -50,7 +54,7 @@ test('Checking for the presence of two active webcams in an OpenVidu session', a
     await page2.screenshot({ path: '../results/screenshots/page2_screenshot.png' });
 
     // Find HTML elements that contain video streams on page2.
-    const videoElements = await page2.$$('video');
+    videoElements = await page2.$$('video');
     
     // Check that there are exactly two elements found.
     expect(videoElements.length).toEqual(2);
diff --git a/tests/openvidu-hello-world-test.spec.js b/tests/openvidu-hello-world-test.spec.js
index 59bf061e..b44a3dc8 100644
--- a/tests/openvidu-hello-world-test.spec.js
+++ b/tests/openvidu-hello-world-test.spec.js
@@ -26,7 +26,11 @@ test('Checking for the presence of two active webcams in an OpenVidu session', a
     // Interact with page1, such as clicking a button and waiting for a specific element to become visible, then wait for a timeout..
     await page1.click('#join input[type="submit"]');
     await page1.waitForSelector('#session', { visible: true });
-    await page2.waitForTimeout(5000);
+    await page1.waitForTimeout(5000);
+
+    var videoElements = await page1.$$('video');
+
+    expect(videoElements.length).toEqual(1);
 
     // Capture a screenshot of page1 and save it to a file.
     await page1.screenshot({ path: '../results/screenshots/page1_screenshot.png' });
@@ -43,7 +47,7 @@ test('Checking for the presence of two active webcams in an OpenVidu session', a
     await page2.screenshot({ path: '../results/screenshots/page2_screenshot.png' });
 
     // Find HTML elements containing video streams on page2 and check if there are exactly two of them.
-    const videoElements = await page2.$$('video');
+    videoElements = await page2.$$('video');
     expect(videoElements.length).toEqual(2);
 
     // Close the pages and the browser.
diff --git a/tests/openvidu-iframe-tutorial.spec.js b/tests/openvidu-iframe-tutorial.spec.js
index a405edff..a12406e9 100644
--- a/tests/openvidu-iframe-tutorial.spec.js
+++ b/tests/openvidu-iframe-tutorial.spec.js
@@ -27,12 +27,18 @@ test('Checking for the presence of two active webcams in an OpenVidu session', a
     let iframeHandle = await page1.waitForSelector('iframe.openvidu-iframe');
     let frame = await iframeHandle.contentFrame();
 
-    await page1.screenshot({ path: '../results/screenshots/page1_screensho.png' });
+    
 
     // Click the "JOIN" button within the iframe and wait for the '#session' element to become visible.
     await frame.click('input[type="submit"]');
     await frame.waitForSelector('#session', { visible: true });
 
+    videoElements = await frame.$$('video');
+
+    expect(videoElements.length).toEqual(1);
+
+    await page1.screenshot({ path: '../results/screenshots/page1_screenshot.png' });
+
     // Navigate to the specified URL on page2.
     await page2.goto('http://localhost:8081/');
     iframeHandle = await page2.waitForSelector('iframe.openvidu-iframe');
@@ -47,7 +53,7 @@ test('Checking for the presence of two active webcams in an OpenVidu session', a
     await page2.screenshot({ path: '../results/screenshots/page2_screensho.png' });
 
     // Find HTML elements within the frame that contain video streams.
-    const videoElements = await frame.$$('video');
+    videoElements = await frame.$$('video');
 
     // Check that there are exactly two elements found.
     expect(videoElements.length).toEqual(2);
diff --git a/tests/openvidu-js-screen-share-tutorial.spec.js b/tests/openvidu-js-screen-share-tutorial.spec.js
index e2cd568b..1e234891 100644
--- a/tests/openvidu-js-screen-share-tutorial.spec.js
+++ b/tests/openvidu-js-screen-share-tutorial.spec.js
@@ -28,6 +28,10 @@ test('Checking for the presence of two active webcams in an OpenVidu session', a
     await page1.waitForSelector('#session', { visible: true });
     await page1.waitForTimeout(5000);
 
+    videoElements = await page1.$$('video');
+
+    expect(videoElements.length).toEqual(2);
+
     // Capture a screenshot of page1 and save it to 'results/screenshot/page1.png'.
     await page1.screenshot({ path: '../results/screenshots/page1.png' });
 
@@ -45,7 +49,7 @@ test('Checking for the presence of two active webcams in an OpenVidu session', a
     await page2.screenshot({ path: '../results/screenshots/page2.png' });
 
     // Find HTML elements within page2 that contain video streams.
-    const videoElements = await page2.$$('video');
+    videoElements = await page2.$$('video');
 
     // Check that there are exactly four elements found.
     expect(videoElements.length).toEqual(4);
diff --git a/tests/openvidu-js-web-tutorial.spec.js b/tests/openvidu-js-web-tutorial.spec.js
index f5d9e88d..fe3807b6 100644
--- a/tests/openvidu-js-web-tutorial.spec.js
+++ b/tests/openvidu-js-web-tutorial.spec.js
@@ -30,7 +30,7 @@ test('Checking for the presence of two active webcams in an OpenVidu session', a
     await page1.waitForSelector('#session', { visible: true });
     await page1.waitForTimeout(5000);
 
-     // Find HTML elements within page2 that contain video streams.
+  
     var videoElements = await page1.$$('video');
 
     expect(videoElements.length).toEqual(2);
diff --git a/tests/openvidu-react-web-tutorial.spec.js b/tests/openvidu-react-web-tutorial.spec.js
index e3c35c85..4d2bbe27 100644
--- a/tests/openvidu-react-web-tutorial.spec.js
+++ b/tests/openvidu-react-web-tutorial.spec.js
@@ -31,6 +31,10 @@ test('Checking for the presence of two active webcams in an OpenVidu session', a
     await page1.waitForSelector('#session', { visible: true });
     await page1.waitForTimeout(5000);
     
+    var videoElements = await page1.$$('video');
+
+    expect(videoElements.length).toEqual(2);
+
     // Capture a screenshot of page1 and save it to a specific location.
     await page1.screenshot({ path: '../results/screenshots/page1.png' });
 
@@ -47,7 +51,7 @@ test('Checking for the presence of two active webcams in an OpenVidu session', a
     await page2.screenshot({ path: '../results/screenshots/page2.png' });
 
     // Find HTML elements within page2 that contain video streams.
-    const videoElements = await page2.$$('video');
+    videoElements = await page2.$$('video');
 
     // Check that there are exactly three elements found.
     expect(videoElements.length).toEqual(3);
diff --git a/tests/openvidu-recording-java-tutorial.spec.js b/tests/openvidu-recording-java-tutorial.spec.js
index 82c7486b..2eb731fa 100644
--- a/tests/openvidu-recording-java-tutorial.spec.js
+++ b/tests/openvidu-recording-java-tutorial.spec.js
@@ -24,6 +24,11 @@ test('Checking for the presence of two active webcams in an OpenVidu session', a
 
     await page1.click('#join-btn');
     await page1.waitForSelector('#session', { visible: true });
+    
+    videoElements = await page1.$$('video');
+
+    expect(videoElements.length).toEqual(1);
+
     await page1.screenshot({ path: '../results/screenshots/page1_screenshot.png' });
 
     await page2.goto('https://localhost:5000');
@@ -40,7 +45,7 @@ test('Checking for the presence of two active webcams in an OpenVidu session', a
     await page2.screenshot({ path: '../results/screenshots/page2_stoprecording_screenshot.png' });
 
     // Buscar los elementos HTML que contienen los streams de video
-    const videoElements = await page2.$$('video');
+    videoElements = await page2.$$('video');
 
     // Comprobar que hay exactamente dos elementos encontrados
     expect(videoElements.length).toEqual(2);
diff --git a/tests/openvidu-recording-node-tutorial.spec.js b/tests/openvidu-recording-node-tutorial.spec.js
index b8ae5b03..b60fff9c 100644
--- a/tests/openvidu-recording-node-tutorial.spec.js
+++ b/tests/openvidu-recording-node-tutorial.spec.js
@@ -23,6 +23,11 @@ test('Checking for the presence of two active webcams in an OpenVidu session', a
 
     await page1.click('#join-btn');
     await page1.waitForSelector('#session', { visible: true });
+   
+    var videoElements = await page1.$$('video');
+
+    expect(videoElements.length).toEqual(1);
+
     await page1.screenshot({ path: '../results/screenshots/page1_screenshot.png' });
 
     await page2.goto('http://localhost:5000');
@@ -39,7 +44,7 @@ test('Checking for the presence of two active webcams in an OpenVidu session', a
     await page2.screenshot({ path: '../results/screenshots/page2_stoprecording_screenshot.png' });
 
     // Buscar los elementos HTML que contienen los streams de video
-    const videoElements = await page2.$$('video');
+    videoElements = await page2.$$('video');
 
     // Comprobar que hay exactamente dos elementos encontrados
     expect(videoElements.length).toEqual(2);
diff --git a/tests/openvidu-vue-tutorial.spec.js b/tests/openvidu-vue-tutorial.spec.js
index 11c53c21..430e7a38 100644
--- a/tests/openvidu-vue-tutorial.spec.js
+++ b/tests/openvidu-vue-tutorial.spec.js
@@ -21,7 +21,12 @@ test('Checking for the presence of two active webcams in an OpenVidu session', a
     await page1.fill('input[type="text"]', 'User1');
     await page1.click('button.btn.btn-lg.btn-success');
     await page1.waitForSelector('#session', { visible: true });
-  
+    
+    videoElements = await page1.$$('video');
+
+    expect(videoElements.length).toEqual(2);
+
+    await page1.screenshot({ path: '../results/screenshots/page1_screenshot.png' });
     
     await page2.goto('http://localhost:8080');
     await page2.fill('input[type="text"]', 'User2');
@@ -29,15 +34,15 @@ test('Checking for the presence of two active webcams in an OpenVidu session', a
     await page2.waitForSelector('#session', { visible: true });
     await page2.waitForTimeout(5000);
   
-    await page1.screenshot({ path: 'page1.png' });
-    await page2.screenshot({ path: 'page2.png' });
-  
     // Buscar los elementos HTML que contienen los streams de video
-    const videoElements = await page2.$$('video');
+    videoElements = await page2.$$('video');
   
     // Comprobar que hay exactamente dos elementos encontrados
     expect(videoElements.length).toEqual(3);
-  
+    
+
+    await page2.screenshot({ path: '../results/screenshots/page2_screenshot.png' });
+
     // Cerrar las páginas y el navegador.
   
     await Promise.all([page1.close(), page2.close()]);