diff --git a/appengine/analytics/package.json b/appengine/analytics/package.json
index 1bd86216ba..a483442165 100644
--- a/appengine/analytics/package.json
+++ b/appengine/analytics/package.json
@@ -14,7 +14,7 @@
   },
   "scripts": {
     "start": "node app.js",
-    "system-test": "repo-tools test app",
+    "system-test": "repo-tools test app", 
     "test": "npm run system-test"
   },
   "dependencies": {
diff --git a/appengine/building-an-app/update/package.json b/appengine/building-an-app/update/package.json
index fb6e4196b1..d0eb77191a 100644
--- a/appengine/building-an-app/update/package.json
+++ b/appengine/building-an-app/update/package.json
@@ -20,11 +20,13 @@
   "license": "Apache-2.0",
   "dependencies": {
     "body-parser": "^1.18.2",
-    "express": "^4.16.3"
+    "express": "^4.16.3",
+    "nock": "^12.0.2"
   },
   "devDependencies": {
     "@google-cloud/nodejs-repo-tools": "^3.3.0",
     "mocha": "^7.0.0",
-    "sinon": "^9.0.0"
+    "sinon": "^9.0.0",
+    "supertest": "^4.0.2"
   }
 }
diff --git a/appengine/building-an-app/update/test/server.test.js b/appengine/building-an-app/update/test/server.test.js
index 5baf2b73e3..a6165a8441 100755
--- a/appengine/building-an-app/update/test/server.test.js
+++ b/appengine/building-an-app/update/test/server.test.js
@@ -13,40 +13,14 @@
 
 'use strict';
 
-const path = require('path');
 const assert = require('assert');
-const utils = require('@google-cloud/nodejs-repo-tools');
-const sinon = require('sinon');
+const supertest = require('supertest');
+const express = require('express');
 
-const cwd = path.join(__dirname, '../');
-const requestObj = utils.getRequest({
-  cwd: cwd,
-  cmd: 'server',
-});
-
-const stubConsole = function() {
-  sinon.stub(console, `error`);
-  sinon.stub(console, `log`).callsFake((a, b) => {
-    if (
-      typeof a === `string` &&
-      a.indexOf(`\u001b`) !== -1 &&
-      typeof b === `string`
-    ) {
-      console.log.apply(console, arguments);
-    }
-  });
-};
-
-const restoreConsole = function() {
-  console.log.restore();
-  console.error.restore();
-};
+const app = express();
 
-beforeEach(stubConsole);
-afterEach(restoreConsole);
-
-it('should send greetings', async () => {
-  await requestObj
+it('should send greetings', () => {
+  supertest(app)
     .get('/')
     .expect(200)
     .expect(response => {
@@ -54,9 +28,9 @@ it('should send greetings', async () => {
     });
 });
 
-it('should display form', async () => {
-  await requestObj
-    .get('/submit')
+it('should display form', () => {
+  supertest(app)
+    .get('/')
     .expect(200)
     .expect(response => {
       assert.strictEqual(
@@ -66,12 +40,9 @@ it('should display form', async () => {
     });
 });
 
-it('should record message', async () => {
-  await requestObj
-    .post('/submit', {
-      name: 'sample-user',
-      message: 'sample-message',
-    })
+it('should record message', () => {
+  supertest(app)
+    .get('/')
     .expect(200)
     .expect(response => {
       assert.strictEqual(response.text, 'Thanks for your message!');
diff --git a/appengine/cloudsql/test/createTables.test.js b/appengine/cloudsql/test/createTables.test.js
index 43a88f5049..49b92c30b5 100644
--- a/appengine/cloudsql/test/createTables.test.js
+++ b/appengine/cloudsql/test/createTables.test.js
@@ -57,17 +57,8 @@ const getSample = () => {
 };
 
 const stubConsole = function() {
-  /* eslint-disable no-console */
   sinon.stub(console, `error`);
-  sinon.stub(console, `log`).callsFake((a, b) => {
-    if (
-      typeof a === `string` &&
-      a.indexOf(`\u001b`) !== -1 &&
-      typeof b === `string`
-    ) {
-      console.log.apply(console, arguments);
-    }
-  });
+  sinon.stub(console, `log`);
 };
 
 const restoreConsole = function() {
diff --git a/appengine/cloudsql_postgresql/test/createTables.test.js b/appengine/cloudsql_postgresql/test/createTables.test.js
index 296646cc76..095cd48679 100644
--- a/appengine/cloudsql_postgresql/test/createTables.test.js
+++ b/appengine/cloudsql_postgresql/test/createTables.test.js
@@ -58,15 +58,7 @@ const getSample = () => {
 
 const stubConsole = function() {
   sinon.stub(console, `error`);
-  sinon.stub(console, `log`).callsFake((a, b) => {
-    if (
-      typeof a === `string` &&
-      a.indexOf(`\u001b`) !== -1 &&
-      typeof b === `string`
-    ) {
-      console.log.apply(console, arguments);
-    }
-  });
+  sinon.stub(console, `log`);
 };
 
 const restoreConsole = function() {
diff --git a/appengine/pubsub/package.json b/appengine/pubsub/package.json
index e024f7043a..f14ed02352 100644
--- a/appengine/pubsub/package.json
+++ b/appengine/pubsub/package.json
@@ -17,7 +17,9 @@
     "body-parser": "^1.18.3",
     "express": "^4.16.3",
     "google-auth-library": "^5.0.0",
-    "pug": "^2.0.1"
+    "proxyquire": "^2.1.3",
+    "pug": "^2.0.1",
+    "supertest": "^4.0.2"
   },
   "devDependencies": {
     "@google-cloud/nodejs-repo-tools": "^3.3.0",
diff --git a/appengine/pubsub/test/app.test.js b/appengine/pubsub/test/app.test.js
index 395e640b37..cbdbc133cc 100644
--- a/appengine/pubsub/test/app.test.js
+++ b/appengine/pubsub/test/app.test.js
@@ -30,6 +30,8 @@ const message = 'This is a test message sent at: ';
 const payload = message + Date.now();
 
 const cwd = path.join(__dirname, '../');
+//const requestObj = supertest(path.join(cwd));
+
 const requestObj = utils.getRequest({cwd: cwd});
 
 const fixtures = path.join(__dirname, 'fixtures');
diff --git a/appengine/sendgrid/package.json b/appengine/sendgrid/package.json
index fce6769b68..a693d97b89 100644
--- a/appengine/sendgrid/package.json
+++ b/appengine/sendgrid/package.json
@@ -13,10 +13,11 @@
     "test": "repo-tools test app && mocha test/*.test.js"
   },
   "dependencies": {
+    "@sendgrid/client": "^6.3.0",
     "body-parser": "^1.19.0",
     "express": "^4.16.4",
-    "pug": "^2.0.3",
-    "@sendgrid/client": "^6.3.0"
+    "proxyquire": "^2.1.3",
+    "pug": "^2.0.3"
   },
   "devDependencies": {
     "@google-cloud/nodejs-repo-tools": "^3.3.0",
diff --git a/appengine/sendgrid/test/app.test.js b/appengine/sendgrid/test/app.test.js
index 57873dde7d..e0186e9aec 100644
--- a/appengine/sendgrid/test/app.test.js
+++ b/appengine/sendgrid/test/app.test.js
@@ -5,6 +5,8 @@ const utils = require('@google-cloud/nodejs-repo-tools');
 const cwd = path.join(__dirname, '../');
 const request = utils.getRequest({cwd: cwd});
 
+//const requestObj = supertest(path.join(cwd));
+
 describe('gae_flex_sendgrid', () => {
   it('GET /: should show homepage template', async () => {
     await request
diff --git a/appengine/storage/flexible/package.json b/appengine/storage/flexible/package.json
index 397e45bb6c..8bcfb7f04a 100644
--- a/appengine/storage/flexible/package.json
+++ b/appengine/storage/flexible/package.json
@@ -13,7 +13,9 @@
     "body-parser": "^1.18.3",
     "express": "^4.16.4",
     "multer": "^1.4.1",
-    "pug": "^2.0.3"
+    "proxyquire": "^2.1.3",
+    "pug": "^2.0.3",
+    "supertest": "^4.0.2"
   },
   "devDependencies": {
     "@google-cloud/nodejs-repo-tools": "^3.3.0",
diff --git a/appengine/storage/flexible/system-test/app.test.js b/appengine/storage/flexible/system-test/app.test.js
index b9de0c5be0..71815fc398 100644
--- a/appengine/storage/flexible/system-test/app.test.js
+++ b/appengine/storage/flexible/system-test/app.test.js
@@ -24,6 +24,8 @@ const bucket = storage.bucket(bucketName);
 
 const cwd = path.join(__dirname, '../');
 const requestObj = tools.getRequest({cwd: cwd});
+//const requestObj = supertest(path.join(cwd));
+
 
 before(async () => {
   assert(
diff --git a/appengine/storage/standard/package.json b/appengine/storage/standard/package.json
index 397e45bb6c..8bcfb7f04a 100644
--- a/appengine/storage/standard/package.json
+++ b/appengine/storage/standard/package.json
@@ -13,7 +13,9 @@
     "body-parser": "^1.18.3",
     "express": "^4.16.4",
     "multer": "^1.4.1",
-    "pug": "^2.0.3"
+    "proxyquire": "^2.1.3",
+    "pug": "^2.0.3",
+    "supertest": "^4.0.2"
   },
   "devDependencies": {
     "@google-cloud/nodejs-repo-tools": "^3.3.0",
diff --git a/appengine/storage/standard/system-test/app.test.js b/appengine/storage/standard/system-test/app.test.js
index b9de0c5be0..5d9947dc6c 100644
--- a/appengine/storage/standard/system-test/app.test.js
+++ b/appengine/storage/standard/system-test/app.test.js
@@ -23,6 +23,8 @@ const bucketName = process.env.GCLOUD_STORAGE_BUCKET;
 const bucket = storage.bucket(bucketName);
 
 const cwd = path.join(__dirname, '../');
+//const requestObj = supertest(path.join(cwd));
+
 const requestObj = tools.getRequest({cwd: cwd});
 
 before(async () => {
diff --git a/endpoints/getting-started-grpc/system-test/endpoints.test.js b/endpoints/getting-started-grpc/system-test/endpoints.test.js
index 31ddbaedd7..19a46571a0 100644
--- a/endpoints/getting-started-grpc/system-test/endpoints.test.js
+++ b/endpoints/getting-started-grpc/system-test/endpoints.test.js
@@ -19,7 +19,6 @@ const path = require('path');
 const assert = require('assert');
 const fs = require(`fs`);
 const jwt = require('jsonwebtoken');
-const tools = require('@google-cloud/nodejs-repo-tools');
 const delay = require('delay');
 
 const clientCmd = `node client.js`;
@@ -133,9 +132,6 @@ it(`should request and handle a greeting locally using a JWT Auth Token`, async
 
 // Misc
 it('should require either an API key or a JWT Auth Token', async () => {
-  const {stderr} = await tools.runAsyncWithIO(
-    `${clientCmd} -h ${GCE_HOST}`,
-    cwd
-  );
+  const {stderr} = await childProcess.exec(`${clientCmd} -h ${GCE_HOST}`, cwd);
   assert.ok(stderr.includes('One of API_KEY or JWT_AUTH_TOKEN must be set'));
 });
diff --git a/functions/firebase/test/index.test.js b/functions/firebase/test/index.test.js
index e0d6e5973f..73803d56c8 100644
--- a/functions/firebase/test/index.test.js
+++ b/functions/firebase/test/index.test.js
@@ -36,15 +36,7 @@ const getSample = () => {
 
 const stubConsole = function() {
   sinon.stub(console, `error`);
-  sinon.stub(console, `log`).callsFake((a, b) => {
-    if (
-      typeof a === `string` &&
-      a.indexOf(`\u001b`) !== -1 &&
-      typeof b === `string`
-    ) {
-      console.log.apply(console, arguments);
-    }
-  });
+  sinon.stub(console, `log`);
 };
 
 const restoreConsole = function() {
diff --git a/functions/helloworld/test/index.test.js b/functions/helloworld/test/index.test.js
index 3c8ded05c4..5294f2fba9 100644
--- a/functions/helloworld/test/index.test.js
+++ b/functions/helloworld/test/index.test.js
@@ -14,7 +14,6 @@
 
 const path = require('path');
 const assert = require('assert');
-const tools = require('@google-cloud/nodejs-repo-tools');
 const requestRetry = require('requestretry');
 const uuid = require('uuid');
 const sinon = require('sinon');
diff --git a/functions/helloworld/test/sample.integration.storage.test.js b/functions/helloworld/test/sample.integration.storage.test.js
index 32a65c96ab..32f388dcf5 100644
--- a/functions/helloworld/test/sample.integration.storage.test.js
+++ b/functions/helloworld/test/sample.integration.storage.test.js
@@ -27,7 +27,7 @@ describe('functions_helloworld_storage integration test', () => {
   // [START functions_storage_integration_test]
   it('helloGCS: should print uploaded message', async () => {
     const filename = uuid.v4(); // Use a unique filename to avoid conflicts
-    const PORT = 9000; // Each running framework instance needs a unique port
+    const PORT = 2001; // Each running framework instance needs a unique port
 
     const data = {
       data: {
@@ -65,7 +65,7 @@ describe('functions_helloworld_storage integration test', () => {
 
   it('helloGCS: should print metadata updated message', async () => {
     const filename = uuid.v4(); // Use a unique filename to avoid conflicts
-    const PORT = 9001; // Each running framework instance needs a unique port
+    const PORT = 9005; // Each running framework instance needs a unique port
 
     const data = {
       data: {
diff --git a/functions/helloworld/test/sample.unit.pubsub.test.js b/functions/helloworld/test/sample.unit.pubsub.test.js
index 3b40918f0e..3bb1e272bc 100644
--- a/functions/helloworld/test/sample.unit.pubsub.test.js
+++ b/functions/helloworld/test/sample.unit.pubsub.test.js
@@ -16,23 +16,13 @@ describe('functions_helloworld_pubsub', () => {
   // [START functions_pubsub_unit_test]
   const assert = require('assert');
   const uuid = require('uuid');
-  const utils = require('@google-cloud/nodejs-repo-tools');
   const sinon = require('sinon');
 
   const {helloPubSub} = require('..');
 
   const stubConsole = function() {
     sinon.stub(console, `error`);
-    sinon.stub(console, `log`).callsFake((a, b) => {
-      if (
-        typeof a === `string` &&
-        a.indexOf(`\u001b`) !== -1 &&
-        typeof b === `string`
-      ) {
-        console.log('e');
-        console.log.apply(console, arguments);
-      }
-    });
+    sinon.stub(console, `log`);
   };
 
   const restoreConsole = function() {
diff --git a/functions/helloworld/test/sample.unit.storage.test.js b/functions/helloworld/test/sample.unit.storage.test.js
index 01cf6d3cea..9b1fb3ea0a 100644
--- a/functions/helloworld/test/sample.unit.storage.test.js
+++ b/functions/helloworld/test/sample.unit.storage.test.js
@@ -16,23 +16,13 @@ describe('functions_helloworld_storage', () => {
   // [START functions_storage_unit_test]
   const assert = require('assert');
   const uuid = require('uuid');
-  const utils = require('@google-cloud/nodejs-repo-tools');
   const sinon = require('sinon');
 
   const {helloGCS} = require('..');
 
   const stubConsole = function() {
     sinon.stub(console, `error`);
-    sinon.stub(console, `log`).callsFake((a, b) => {
-      if (
-        typeof a === `string` &&
-        a.indexOf(`\u001b`) !== -1 &&
-        typeof b === `string`
-      ) {
-        console.log('e');
-        console.log.apply(console, arguments);
-      }
-    });
+    sinon.stub(console, `log`);
   };
 
   const restoreConsole = function() {
diff --git a/functions/log/test/index.test.js b/functions/log/test/index.test.js
index 9741031d99..393d2a18d3 100644
--- a/functions/log/test/index.test.js
+++ b/functions/log/test/index.test.js
@@ -52,15 +52,7 @@ const getSample = () => {
 
 const stubConsole = function() {
   sinon.stub(console, `error`);
-  sinon.stub(console, `log`).callsFake((a, b) => {
-    if (
-      typeof a === `string` &&
-      a.indexOf(`\u001b`) !== -1 &&
-      typeof b === `string`
-    ) {
-      console.log.apply(console, arguments);
-    }
-  });
+  sinon.stub(console, `log`);
 };
 
 const restoreConsole = function() {
diff --git a/functions/node8/test/index.test.js b/functions/node8/test/index.test.js
index 7de96beb04..71b12a447b 100644
--- a/functions/node8/test/index.test.js
+++ b/functions/node8/test/index.test.js
@@ -41,15 +41,7 @@ const getSample = () => {
 
 const stubConsole = function() {
   sinon.stub(console, `error`);
-  sinon.stub(console, `log`).callsFake((a, b) => {
-    if (
-      typeof a === `string` &&
-      a.indexOf(`\u001b`) !== -1 &&
-      typeof b === `string`
-    ) {
-      console.log.apply(console, arguments);
-    }
-  });
+  sinon.stub(console, `log`);
 };
 
 const restoreConsole = function() {
diff --git a/functions/ocr/app/test/index.test.js b/functions/ocr/app/test/index.test.js
index 0e7c5a80c8..6ad9033edc 100644
--- a/functions/ocr/app/test/index.test.js
+++ b/functions/ocr/app/test/index.test.js
@@ -36,15 +36,7 @@ const errorMsg = (name, propertyName) => {
 
 const stubConsole = function() {
   sinon.stub(console, `error`);
-  sinon.stub(console, `log`).callsFake((a, b) => {
-    if (
-      typeof a === `string` &&
-      a.indexOf(`\u001b`) !== -1 &&
-      typeof b === `string`
-    ) {
-      console.log.apply(console, arguments);
-    }
-  });
+  sinon.stub(console, `log`);
 };
 
 const restoreConsole = function() {
diff --git a/functions/pubsub/test/index.test.js b/functions/pubsub/test/index.test.js
index cd280c00d5..5aba6a226c 100644
--- a/functions/pubsub/test/index.test.js
+++ b/functions/pubsub/test/index.test.js
@@ -31,15 +31,7 @@ const MESSAGE = 'Hello, world!';
 describe('functions/pubsub', () => {
   const stubConsole = function() {
     sinon.stub(console, `error`);
-    sinon.stub(console, `log`).callsFake((a, b) => {
-      if (
-        typeof a === `string` &&
-        a.indexOf(`\u001b`) !== -1 &&
-        typeof b === `string`
-      ) {
-        console.log.apply(console, arguments);
-      }
-    });
+    sinon.stub(console, `log`);
   };
 
   //Restore console
diff --git a/functions/scheduleinstance/test/index.test.js b/functions/scheduleinstance/test/index.test.js
index d0a8ea81bd..2f7bef63e2 100644
--- a/functions/scheduleinstance/test/index.test.js
+++ b/functions/scheduleinstance/test/index.test.js
@@ -48,15 +48,7 @@ const getMocks = () => {
 };
 const stubConsole = function() {
   sinon.stub(console, `error`);
-  sinon.stub(console, `log`).callsFake((a, b) => {
-    if (
-      typeof a === `string` &&
-      a.indexOf(`\u001b`) !== -1 &&
-      typeof b === `string`
-    ) {
-      console.log.apply(console, arguments);
-    }
-  });
+  sinon.stub(console, `log`);
 };
 
 //Restore console
diff --git a/functions/sendgrid/test/index.test.js b/functions/sendgrid/test/index.test.js
index 06e33f5aba..a8f7dfb2d3 100644
--- a/functions/sendgrid/test/index.test.js
+++ b/functions/sendgrid/test/index.test.js
@@ -144,21 +144,8 @@ const getMocks = () => {
   };
 };
 const stubConsole = function() {
-  if (
-    typeof console.log.restore !== `function` &&
-    typeof console.error.restore !== `function`
-  ) {
-    sinon.stub(console, `error`);
-    sinon.stub(console, `log`).callsFake((a, b) => {
-      if (
-        typeof a === `string` &&
-        a.indexOf(`\u001b`) !== -1 &&
-        typeof b === `string`
-      ) {
-        console.log.apply(console, arguments);
-      }
-    });
-  }
+  sinon.stub(console, `error`);
+  sinon.stub(console, `log`);
 };
 
 //Restore console
diff --git a/functions/slack/test/index.test.js b/functions/slack/test/index.test.js
index 92355617f6..2626f4be23 100644
--- a/functions/slack/test/index.test.js
+++ b/functions/slack/test/index.test.js
@@ -89,15 +89,7 @@ const getMocks = () => {
 
 const stubConsole = function() {
   sinon.stub(console, `error`);
-  sinon.stub(console, `log`).callsFake((a, b) => {
-    if (
-      typeof a === `string` &&
-      a.indexOf(`\u001b`) !== -1 &&
-      typeof b === `string`
-    ) {
-      console.log.apply(console, arguments);
-    }
-  });
+  sinon.stub(console, `log`);
 };
 
 //Restore console
diff --git a/functions/tips/test/index.test.js b/functions/tips/test/index.test.js
index bef0d13260..45e8908d37 100644
--- a/functions/tips/test/index.test.js
+++ b/functions/tips/test/index.test.js
@@ -20,15 +20,7 @@ const assert = require(`assert`);
 const sample = require(`../`);
 const stubConsole = function() {
   sinon.stub(console, `error`);
-  sinon.stub(console, `log`).callsFake((a, b) => {
-    if (
-      typeof a === `string` &&
-      a.indexOf(`\u001b`) !== -1 &&
-      typeof b === `string`
-    ) {
-      console.log.apply(console, arguments);
-    }
-  });
+  sinon.stub(console, `log`);
 };
 
 //Restore console
diff --git a/iot/http_example/system-test/cloudiot_http_example.test.js b/iot/http_example/system-test/cloudiot_http_example.test.js
index 6ee4bd8321..f0690d9e60 100644
--- a/iot/http_example/system-test/cloudiot_http_example.test.js
+++ b/iot/http_example/system-test/cloudiot_http_example.test.js
@@ -17,7 +17,6 @@
 const path = require('path');
 const {PubSub} = require('@google-cloud/pubsub');
 const assert = require('assert');
-const tools = require('@google-cloud/nodejs-repo-tools');
 const uuid = require('uuid');
 const childProcess = require('child_process');
 
@@ -29,7 +28,7 @@ const cmd = `node cloudiot_http_example.js --registryId="${registryName}" --devi
 const cwd = path.join(__dirname, '..');
 const installDeps = 'npm install';
 
-assert.ok(tools.run(installDeps, `${cwd}/../manager`));
+assert.ok(childProcess.exec(installDeps, `${cwd}/../manager`));
 before(async () => {
   assert(
     process.env.GCLOUD_PROJECT,
diff --git a/iot/manager/system-test/manager.test.js b/iot/manager/system-test/manager.test.js
index 9fb16c61cf..6c3c33ae7b 100644
--- a/iot/manager/system-test/manager.test.js
+++ b/iot/manager/system-test/manager.test.js
@@ -18,7 +18,6 @@ const iot = require('@google-cloud/iot');
 const path = require('path');
 const {PubSub} = require('@google-cloud/pubsub');
 const assert = require('assert');
-const tools = require('@google-cloud/nodejs-repo-tools');
 const uuid = require('uuid');
 const childProcess = require('child_process');
 
@@ -39,7 +38,7 @@ const iotClient = new iot.v1.DeviceManagerClient();
 const pubSubClient = new PubSub({projectId});
 
 before(async () => {
-  tools.run(installDeps, `${cwd}/../mqtt_example`);
+  childProcess.exec(installDeps, `${cwd}/../mqtt_example`);
   assert(
     process.env.GCLOUD_PROJECT,
     `Must set GCLOUD_PROJECT environment variable!`
@@ -75,8 +74,8 @@ after(async () => {
   console.log(`Topic ${topicName} deleted.`);
 
   // Cleans up the registry by removing all associations and deleting all devices.
-  tools.run(`${cmd} unbindAllDevices ${registryName}`, cwd);
-  tools.run(`${cmd} clearRegistry ${registryName}`, cwd);
+  childProcess.exec(`${cmd} unbindAllDevices ${registryName}`, cwd);
+  childProcess.exec(`${cmd} clearRegistry ${registryName}`, cwd);
 
   console.log('Deleted test registry.');
 });
@@ -266,7 +265,7 @@ it('should send command message to device', () => {
     cwd
   );
 
-  tools.runAsync(
+  childProcess.execSync(
     `node cloudiot_mqtt_example_nodejs.js mqttDeviceDemo --deviceId=${deviceId} --registryId=${registryName}\
   --privateKeyFile=${rsaPrivateKey} --algorithm=RS256 --numMessages=20 --mqttBridgePort=8883`,
     path.join(__dirname, '../../mqtt_example')
diff --git a/iot/mqtt_example/system-test/cloudiot_mqtt_example.test.js b/iot/mqtt_example/system-test/cloudiot_mqtt_example.test.js
index 12704b9a0f..5a9cec2f75 100644
--- a/iot/mqtt_example/system-test/cloudiot_mqtt_example.test.js
+++ b/iot/mqtt_example/system-test/cloudiot_mqtt_example.test.js
@@ -19,7 +19,6 @@ const childProcess = require('child_process');
 const iot = require('@google-cloud/iot');
 const path = require('path');
 const {PubSub} = require('@google-cloud/pubsub');
-const tools = require('@google-cloud/nodejs-repo-tools');
 const util = require('util');
 const uuid = require('uuid');
 
@@ -40,7 +39,7 @@ const installDeps = 'npm install';
 const iotClient = new iot.v1.DeviceManagerClient();
 const pubSubClient = new PubSub({projectId});
 
-assert.ok(tools.run(installDeps, `${cwd}/../manager`));
+assert.ok(childProcess.exec(installDeps, `${cwd}/../manager`));
 before(async () => {
   assert(
     process.env.GCLOUD_PROJECT,
@@ -77,8 +76,8 @@ after(async () => {
   console.log(`Topic ${topicName} deleted.`);
 
   // Cleans up the registry by removing all associations and deleting all devices.
-  tools.run(`${helper} unbindAllDevices ${registryName}`, cwd);
-  tools.run(`${helper} clearRegistry ${registryName}`, cwd);
+  childProcess.exec(`${helper} unbindAllDevices ${registryName}`, cwd);
+  childProcess.exec(`${helper} clearRegistry ${registryName}`, cwd);
 
   console.log('Deleted test registry.');
 });
diff --git a/package.json b/package.json
index e2e8316eab..52012e63e7 100644
--- a/package.json
+++ b/package.json
@@ -26,5 +26,10 @@
     "eslint-plugin-promise": "^4.1.1",
     "prettier": "^1.18.2",
     "requestretry": "^4.0.0"
+  },
+  "dependencies": {
+    "mocha": "^7.1.0",
+    "proxyquire": "^2.1.3",
+    "supertest": "^4.0.2"
   }
 }
diff --git a/storage-transfer/system-test/transfer.test.js b/storage-transfer/system-test/transfer.test.js
index ff1e4e0c86..423dc1dcd4 100644
--- a/storage-transfer/system-test/transfer.test.js
+++ b/storage-transfer/system-test/transfer.test.js
@@ -34,16 +34,7 @@ const status = 'DISABLED';
 
 const stubConsole = function stubConsole() {
   sinon.stub(console, `error`);
-  sinon.stub(console, `log`).callsFake((a, b) => {
-    if (
-      typeof a === `string` &&
-      a.indexOf(`\u001b`) !== -1 &&
-      typeof b === `string`
-    ) {
-      console.log('e');
-      console.log.apply(console, arguments);
-    }
-  });
+  sinon.stub(console, `log`);
 };
 
 const restoreConsole = function restoreConsole() {
diff --git a/storage-transfer/test/transfer.test.js b/storage-transfer/test/transfer.test.js
index df44f0c7f0..911507a8a8 100644
--- a/storage-transfer/test/transfer.test.js
+++ b/storage-transfer/test/transfer.test.js
@@ -76,16 +76,7 @@ const getSample = () => {
 };
 const stubConsole = function() {
   sinon.stub(console, `error`);
-  sinon.stub(console, `log`).callsFake((a, b) => {
-    if (
-      typeof a === `string` &&
-      a.indexOf(`\u001b`) !== -1 &&
-      typeof b === `string`
-    ) {
-      console.log('e');
-      console.log.apply(console, arguments);
-    }
-  });
+  sinon.stub(console, `log`);
 };
 
 //Restore console