diff --git a/packages/bruno-app/src/components/ResponsePane/StyledWrapper.js b/packages/bruno-app/src/components/ResponsePane/StyledWrapper.js
index d78558bf7..0b49d66ca 100644
--- a/packages/bruno-app/src/components/ResponsePane/StyledWrapper.js
+++ b/packages/bruno-app/src/components/ResponsePane/StyledWrapper.js
@@ -25,6 +25,14 @@ const StyledWrapper = styled.div`
       }
     }
   }
+
+  .some-tests-failed {
+    color: ${(props) => props.theme.colors.text.danger} !important;
+  }
+
+  .all-tests-passed {
+    color: ${(props) => props.theme.colors.text.green} !important;
+  }
 `;
 
 export default StyledWrapper;
diff --git a/packages/bruno-app/src/components/ResponsePane/TestResults/StyledWrapper.js b/packages/bruno-app/src/components/ResponsePane/TestResults/StyledWrapper.js
new file mode 100644
index 000000000..1b5901977
--- /dev/null
+++ b/packages/bruno-app/src/components/ResponsePane/TestResults/StyledWrapper.js
@@ -0,0 +1,17 @@
+import styled from 'styled-components';
+
+const StyledWrapper = styled.div`
+  .test-success {
+    color: ${(props) => props.theme.colors.text.green};
+  }
+
+  .test-failure {
+    color: ${(props) => props.theme.colors.text.danger};
+
+    .error-message {
+      color: ${(props) => props.theme.colors.text.muted};
+    }
+  }
+`;
+
+export default StyledWrapper;
diff --git a/packages/bruno-app/src/components/ResponsePane/TestResults/index.js b/packages/bruno-app/src/components/ResponsePane/TestResults/index.js
new file mode 100644
index 000000000..7f66d7885
--- /dev/null
+++ b/packages/bruno-app/src/components/ResponsePane/TestResults/index.js
@@ -0,0 +1,46 @@
+import React from 'react';
+import StyledWrapper from './StyledWrapper';
+
+const TestResults = ({ results }) => {
+  if (!results || !results.length) {
+    return (
+      <div className="px-3">
+        No tests found
+      </div>
+    );
+  }
+
+  const passedTests = results.filter((result) => result.status === 'pass');
+  const failedTests = results.filter((result) => result.status === 'fail');
+
+  return (
+    <StyledWrapper className='flex flex-col px-3'>
+      <div className="py-2 font-medium test-summary">
+        Tests ({results.length}/{results.length}), Passed: {passedTests.length}, Failed: {failedTests.length}
+      </div>
+      <ul className="">
+        {results.map((result, index) => (
+          <li key={index} className="py-1">
+            {result.status === 'pass' ? (
+              <span className="test-success">
+                &#x2714;&nbsp; {result.description}
+              </span>
+            ) : (
+              <>
+                <span className="test-failure">
+                  &#x2718;&nbsp; {result.description}
+                </span>
+                <br />
+                <span className="error-message pl-8">
+                  {result.error}
+                </span>
+              </>
+            )}
+          </li>
+        ))}
+      </ul>
+    </StyledWrapper>
+  );
+};
+
+export default TestResults;
diff --git a/packages/bruno-app/src/components/ResponsePane/index.js b/packages/bruno-app/src/components/ResponsePane/index.js
index eca996f75..79b64db2d 100644
--- a/packages/bruno-app/src/components/ResponsePane/index.js
+++ b/packages/bruno-app/src/components/ResponsePane/index.js
@@ -11,8 +11,33 @@ import StatusCode from './StatusCode';
 import ResponseTime from './ResponseTime';
 import ResponseSize from './ResponseSize';
 import Timeline from './Timeline';
+import TestResults from './TestResults';
 import StyledWrapper from './StyledWrapper';
 
+const TestResultsLabel = ({ results }) => {
+  if(!results || !results.length) {
+    return 'Tests';
+  }
+
+  const numberOfTests = results.length;
+  const numberOfFailedTests = results.filter(result => result.status === 'fail').length;
+
+  return (
+    <div className='flex items-center'>
+      <div>Tests</div>
+      {numberOfFailedTests ? (
+        <sup className='sups some-tests-failed ml-1 font-medium'>
+          {numberOfFailedTests}
+        </sup>
+      ) : (
+        <sup className='sups all-tests-passed ml-1 font-medium'>
+          {numberOfTests}
+        </sup>
+      )}
+      </div>
+  );
+};
+
 const ResponsePane = ({ rightPaneWidth, item, collection }) => {
   const dispatch = useDispatch();
   const tabs = useSelector((state) => state.tabs.tabs);
@@ -46,6 +71,9 @@ const ResponsePane = ({ rightPaneWidth, item, collection }) => {
       case 'timeline': {
         return <Timeline item={item} />;
       }
+      case 'tests': {
+        return <TestResults results={item.testResults} />;
+      }
 
       default: {
         return <div>404 | Not found</div>;
@@ -96,6 +124,9 @@ const ResponsePane = ({ rightPaneWidth, item, collection }) => {
         <div className={getTabClassname('timeline')} role="tab" onClick={() => selectTab('timeline')}>
           Timeline
         </div>
+        <div className={getTabClassname('tests')} role="tab" onClick={() => selectTab('tests')}>
+          <TestResultsLabel results={item.testResults} />
+        </div>
         {!isLoading ? (
           <div className="flex flex-grow justify-end items-center">
             <StatusCode status={response.status} />
diff --git a/packages/bruno-app/src/providers/App/useCollectionTreeSync.js b/packages/bruno-app/src/providers/App/useCollectionTreeSync.js
index 17518351f..55dbd1d6d 100644
--- a/packages/bruno-app/src/providers/App/useCollectionTreeSync.js
+++ b/packages/bruno-app/src/providers/App/useCollectionTreeSync.js
@@ -9,6 +9,7 @@ import {
   collectionUnlinkEnvFileEvent,
   requestSentEvent,
   requestQueuedEvent,
+  testResultsEvent,
   scriptEnvironmentUpdateEvent
 } from 'providers/ReduxStore/slices/collections';
 import toast from 'react-hot-toast';
@@ -95,6 +96,10 @@ const useCollectionTreeSync = () => {
       dispatch(requestQueuedEvent(val));
     };
 
+    const _testResults = (val) => {
+      dispatch(testResultsEvent(val));
+    };
+
     ipcRenderer.invoke('renderer:ready');
 
     const removeListener1 = ipcRenderer.on('main:collection-opened', _openCollection);
@@ -104,6 +109,7 @@ const useCollectionTreeSync = () => {
     const removeListener5 = ipcRenderer.on('main:http-request-sent', _httpRequestSent);
     const removeListener6 = ipcRenderer.on('main:script-environment-update', _scriptEnvironmentUpdate);
     const removeListener7 = ipcRenderer.on('main:http-request-queued', _httpRequestQueued);
+    const removeListener8 = ipcRenderer.on('main:test-results', _testResults);
 
     return () => {
       removeListener1();
@@ -113,6 +119,7 @@ const useCollectionTreeSync = () => {
       removeListener5();
       removeListener6();
       removeListener7();
+      removeListener8();
     };
   }, [isElectron]);
 };
diff --git a/packages/bruno-app/src/providers/ReduxStore/slices/collections/index.js b/packages/bruno-app/src/providers/ReduxStore/slices/collections/index.js
index a8d3c025d..a87db2ebb 100644
--- a/packages/bruno-app/src/providers/ReduxStore/slices/collections/index.js
+++ b/packages/bruno-app/src/providers/ReduxStore/slices/collections/index.js
@@ -812,6 +812,18 @@ export const collectionsSlice = createSlice({
           collection.environments.push(environment);
         }
       }
+    },
+    testResultsEvent: (state, action) => {
+      const { itemUid, collectionUid, results } = action.payload;
+      const collection = findCollectionByUid(state.collections, collectionUid);
+
+      if (collection) {
+        const item = findItemInCollection(collection, itemUid);
+
+        if (item) {
+          item.testResults = results;
+        }
+      }
     }
   }
 });
@@ -861,7 +873,8 @@ export const {
   collectionChangeFileEvent,
   collectionUnlinkFileEvent,
   collectionUnlinkDirectoryEvent,
-  collectionAddEnvFileEvent
+  collectionAddEnvFileEvent,
+  testResultsEvent
 } = collectionsSlice.actions;
 
 export default collectionsSlice.reducer;
diff --git a/packages/bruno-electron/package.json b/packages/bruno-electron/package.json
index cb29fd17b..9c994c66a 100644
--- a/packages/bruno-electron/package.json
+++ b/packages/bruno-electron/package.json
@@ -20,6 +20,7 @@
     "atob": "^2.1.2",
     "axios": "^0.26.0",
     "btoa": "^1.2.1",
+    "chai": "^4.3.7",
     "chokidar": "^3.5.3",
     "crypto-js": "^4.1.1",
     "electron-is-dev": "^2.0.0",
diff --git a/packages/bruno-electron/src/ipc/network/index.js b/packages/bruno-electron/src/ipc/network/index.js
index fb6618ada..be5888f6a 100644
--- a/packages/bruno-electron/src/ipc/network/index.js
+++ b/packages/bruno-electron/src/ipc/network/index.js
@@ -2,8 +2,8 @@ const axios = require('axios');
 const Mustache = require('mustache');
 const FormData = require('form-data');
 const { ipcMain } = require('electron');
-const { forOwn, extend, each } = require('lodash');
-const { ScriptRuntime } = require('@usebruno/js');
+const { forOwn, extend, each, get } = require('lodash');
+const { ScriptRuntime, TestRuntime } = require('@usebruno/js');
 const prepareRequest = require('./prepare-request');
 const { cancelTokens, saveCancelToken, deleteCancelToken } = require('../../utils/cancel-token');
 const { uuid } = require('../../utils/common');
@@ -79,12 +79,12 @@ const registerNetworkIpc = (mainWindow, watcher, lastOpenedCollections) => {
       const envVars = getEnvVars(environment);
 
       if(request.script && request.script.length) {
-        let script = request.script + '\n if (typeof onRequest === "function") {onRequest(brunoRequest);}';
+        let script = request.script + '\n if (typeof onRequest === "function") {onRequest(__brunoRequest);}';
         const scriptRuntime = new ScriptRuntime();
-        const res = scriptRuntime.runRequestScript(script, request, envVars, collectionPath);
+        const result = scriptRuntime.runRequestScript(script, request, envVars, collectionPath);
 
         mainWindow.webContents.send('main:script-environment-update', {
-          environment: res.environment,
+          environment: result.environment,
           collectionUid
         });
       }
@@ -106,15 +106,27 @@ const registerNetworkIpc = (mainWindow, watcher, lastOpenedCollections) => {
         cancelTokenUid
       });
 
-      const result = await axios(request);
+      const response = await axios(request);
 
       if(request.script && request.script.length) {
-        let script = request.script + '\n if (typeof onResponse === "function") {onResponse(brunoResponse);}';
+        let script = request.script + '\n if (typeof onResponse === "function") {onResponse(__brunoResponse);}';
         const scriptRuntime = new ScriptRuntime();
-        const res = scriptRuntime.runResponseScript(script, result, envVars, collectionPath);
+        const result = scriptRuntime.runResponseScript(script, response, envVars, collectionPath);
 
         mainWindow.webContents.send('main:script-environment-update', {
-          environment: res.environment,
+          environment: result.environment,
+          collectionUid
+        });
+      }
+
+      const testFile = get(item, 'request.tests');
+      if(testFile && testFile.length) {
+        const testRuntime = new TestRuntime();
+        const result = testRuntime.runTests(testFile, request, response, envVars, collectionPath);
+
+        mainWindow.webContents.send('main:test-results', {
+          results: result.results,
+          itemUid: item.uid,
           collectionUid
         });
       }
@@ -122,10 +134,10 @@ const registerNetworkIpc = (mainWindow, watcher, lastOpenedCollections) => {
       deleteCancelToken(cancelTokenUid);
 
       return {
-        status: result.status,
-        statusText: result.statusText,
-        headers: result.headers,
-        data: result.data
+        status: response.status,
+        statusText: response.statusText,
+        headers: response.headers,
+        data: response.data
       };
     } catch (error) {
       // todo: better error handling
diff --git a/packages/bruno-js/src/index.js b/packages/bruno-js/src/index.js
index 1a5001f1b..31ea7bde4 100644
--- a/packages/bruno-js/src/index.js
+++ b/packages/bruno-js/src/index.js
@@ -2,6 +2,11 @@ const {
   ScriptRuntime
 } = require('./scripts/script-runtime');
 
+const {
+  TestRuntime
+} = require('./scripts/test-runtime');
+
 module.exports = {
-  ScriptRuntime
+  ScriptRuntime,
+  TestRuntime
 };
diff --git a/packages/bruno-js/src/scripts/script-runtime.js b/packages/bruno-js/src/scripts/script-runtime.js
index ec3f43477..904e2393d 100644
--- a/packages/bruno-js/src/scripts/script-runtime.js
+++ b/packages/bruno-js/src/scripts/script-runtime.js
@@ -10,11 +10,11 @@ class ScriptRuntime {
 
   runRequestScript(script, request, environment, collectionPath) {
     const bru = new Bru(environment);
-    const brunoRequest = new BrunoRequest(request);
+    const __brunoRequest = new BrunoRequest(request);
 
     const context = {
       bru,
-      brunoRequest
+      __brunoRequest
     };
     const vm = new NodeVM({
       sandbox: context,
@@ -35,11 +35,11 @@ class ScriptRuntime {
 
   runResponseScript(script, response, environment, collectionPath) {
     const bru = new Bru(environment);
-    const brunoResponse = new BrunoResponse(response);
+    const __brunoResponse = new BrunoResponse(response);
 
     const context = {
       bru,
-      brunoResponse
+      __brunoResponse
     };
     const vm = new NodeVM({
       sandbox: context,
diff --git a/packages/bruno-js/src/scripts/test-results.js b/packages/bruno-js/src/scripts/test-results.js
new file mode 100644
index 000000000..17d35fe4f
--- /dev/null
+++ b/packages/bruno-js/src/scripts/test-results.js
@@ -0,0 +1,15 @@
+class TestResults {
+  constructor() {
+    this.results = [];
+  }
+
+  addResult(result) {
+    this.results.push(result);
+  }
+
+  getResults() {
+    return this.results;
+  }
+}
+
+module.exports = TestResults;
diff --git a/packages/bruno-js/src/scripts/test-runtime.js b/packages/bruno-js/src/scripts/test-runtime.js
new file mode 100644
index 000000000..59c45331b
--- /dev/null
+++ b/packages/bruno-js/src/scripts/test-runtime.js
@@ -0,0 +1,55 @@
+const { NodeVM } = require('vm2');
+const chai = require('chai');  
+const path = require('path');
+const Bru = require('./bru');
+const BrunoRequest = require('./bruno-request');
+const BrunoResponse = require('./bruno-response');
+const Test = require('./test');
+const TestResults = require('./test-results');
+
+class TestRuntime {
+  constructor() {
+  }
+
+  runTests(testsFile, request, response, environment, collectionPath) {
+    const bru = new Bru(environment);
+    const req = new BrunoRequest(request);
+    const res = new BrunoResponse(response);
+
+    const __brunoTestResults = new TestResults();
+    const test = Test(__brunoTestResults, chai);
+
+    const context = {
+      bru,
+      req,
+      res,
+      test,
+      expect: chai.expect,
+      assert: chai.assert,
+      __brunoTestResults: __brunoTestResults
+    };
+
+    const vm = new NodeVM({
+      sandbox: context,
+      require: {
+        context: 'sandbox',
+        external: true,
+        root: [collectionPath]
+      }
+    });
+    console.log(__brunoTestResults);
+
+    vm.run(testsFile, path.join(collectionPath, 'vm.js'));
+
+    return {
+      request,
+      response,
+      environment,
+      results: __brunoTestResults.getResults()
+    };
+  }
+}
+
+module.exports = {
+  TestRuntime
+};
diff --git a/packages/bruno-js/src/scripts/test.js b/packages/bruno-js/src/scripts/test.js
new file mode 100644
index 000000000..975746bd2
--- /dev/null
+++ b/packages/bruno-js/src/scripts/test.js
@@ -0,0 +1,27 @@
+const Test = (__brunoTestResults, chai) => (description, callback) => {
+  try {
+    callback();
+    __brunoTestResults.addResult({ description, status: "pass" });
+  } catch (error) {
+    console.log(chai.AssertionError);
+    if (error instanceof chai.AssertionError) {
+      const { message, actual, expected } = error;
+      __brunoTestResults.addResult({
+        description,
+        status: "fail",
+        error: message,
+        actual,
+        expected
+      });
+    } else {
+      __brunoTestResults.addResult({
+        description,
+        status: "fail",
+        error: error.message || 'An unexpected error occurred.'
+      });
+    }
+    console.log(error);
+  }
+}
+
+module.exports = Test;
\ No newline at end of file