diff --git a/packages/@webex/webex-core/test/integration/spec/credentials/credentials.js b/packages/@webex/webex-core/test/integration/spec/credentials/credentials.js
index 05916b4c54a..64c7c6779b1 100644
--- a/packages/@webex/webex-core/test/integration/spec/credentials/credentials.js
+++ b/packages/@webex/webex-core/test/integration/spec/credentials/credentials.js
@@ -33,6 +33,7 @@ describe('webex-core', () => {
             },
           },
         });
+        sinon.stub(webex.boundedStorage, 'put');
 
         assert.equal(webex.config.credentials.authorizeUrl, authorizeUrl);
       });
@@ -46,6 +47,7 @@ describe('webex-core', () => {
         webex = new WebexCore({
           credentials: user.token,
         });
+        sinon.stub(webex.boundedStorage, 'put');
 
         credentials = webex.credentials;
       });
@@ -65,6 +67,7 @@ describe('webex-core', () => {
         webex = new WebexCore({
           credentials: user.token,
         });
+        sinon.stub(webex.boundedStorage, 'put');
 
         credentials = webex.credentials;
       });
@@ -85,6 +88,7 @@ describe('webex-core', () => {
         webex = new WebexCore({
           credentials: user.token,
         });
+        sinon.stub(webex.boundedStorage, 'put');
 
         credentials = webex.credentials;
       });
@@ -102,6 +106,7 @@ describe('webex-core', () => {
         const webex = new WebexCore({
           credentials: user.token,
         });
+        sinon.stub(webex.boundedStorage, 'put');
 
         return webex.credentials.refresh().then(() => {
           assert.isDefined(user.token.access_token);
@@ -114,6 +119,7 @@ describe('webex-core', () => {
         const webex = new WebexCore({
           credentials: user.token,
         });
+        sinon.stub(webex.boundedStorage, 'put');
 
         return assert.isRejected(webex.credentials.refresh());
       });
@@ -127,6 +133,7 @@ describe('webex-core', () => {
             },
           },
         });
+        sinon.stub(webex.boundedStorage, 'put');
 
         return webex.credentials.refresh().then(() => {
           assert.isDefined(user.token.access_token);
diff --git a/packages/@webex/webex-core/test/integration/spec/credentials/token.js b/packages/@webex/webex-core/test/integration/spec/credentials/token.js
index 54123b8507c..e70359312e6 100644
--- a/packages/@webex/webex-core/test/integration/spec/credentials/token.js
+++ b/packages/@webex/webex-core/test/integration/spec/credentials/token.js
@@ -24,6 +24,7 @@ describe('webex-core', () => {
       describe('#downscope()', () => {
         it('retrieves an access token with a subset of scopes', () => {
           webex = new WebexCore({credentials: user.token});
+          sinon.stub(webex.boundedStorage, 'put');
           const allScope = webex.credentials.config.scope;
           const apiScope = filterScope('spark:kms', allScope);
 
@@ -46,6 +47,7 @@ describe('webex-core', () => {
       describe('#refresh()', () => {
         nodeOnly(it)('refreshes the token, returning a new Token instance', () => {
           webex = new WebexCore({credentials: user.token});
+          sinon.stub(webex.boundedStorage, 'put');
 
           return webex.credentials.supertoken.refresh().then((token2) => {
             assert.notEqual(token2.access_token, webex.credentials.supertoken.access_token);
@@ -62,6 +64,7 @@ describe('webex-core', () => {
               },
             },
           });
+          sinon.stub(webex.boundedStorage, 'put');
 
           return webex.credentials.supertoken.refresh().then((token2) => {
             assert.notEqual(token2.access_token, webex.credentials.supertoken.access_token);
@@ -73,6 +76,7 @@ describe('webex-core', () => {
       describe('#validate()', () => {
         it("shows the token's scopes", () => {
           webex = new WebexCore({credentials: user.token});
+          sinon.stub(webex.boundedStorage, 'put');
 
           return webex.credentials.supertoken.validate().then((details) => {
             const detailScope = details.scope.sort();
@@ -89,6 +93,7 @@ describe('webex-core', () => {
       describe('#revoke()', () => {
         it('revokes the token', () => {
           webex = new WebexCore({credentials: user.token});
+          sinon.stub(webex.boundedStorage, 'put');
 
           return webex.credentials.supertoken.revoke().then(() => {
             assert.isUndefined(webex.credentials.supertoken.access_token);
diff --git a/packages/@webex/webex-core/test/integration/spec/services/service-catalog.js b/packages/@webex/webex-core/test/integration/spec/services/service-catalog.js
index fd6bce9cb4a..5a405779354 100644
--- a/packages/@webex/webex-core/test/integration/spec/services/service-catalog.js
+++ b/packages/@webex/webex-core/test/integration/spec/services/service-catalog.js
@@ -26,6 +26,7 @@ describe('webex-core', () => {
               setTimeout(() => {
                 webexUser = user;
                 webex = new WebexCore({credentials: user.token});
+                sinon.stub(webex.boundedStorage, 'put');
                 services = webex.internal.services;
                 catalog = services._getCatalog();
                 resolve();
diff --git a/packages/@webex/webex-core/test/integration/spec/services/services.js b/packages/@webex/webex-core/test/integration/spec/services/services.js
index 1e653d8fe52..58081b6fe03 100644
--- a/packages/@webex/webex-core/test/integration/spec/services/services.js
+++ b/packages/@webex/webex-core/test/integration/spec/services/services.js
@@ -45,6 +45,8 @@ describe('webex-core', () => {
     beforeEach('create webex instance', () => {
       webex = new WebexCore({credentials: {supertoken: webexUser.token}});
       webexEU = new WebexCore({credentials: {supertoken: webexUserEU.token}});
+      sinon.stub(webex.boundedStorage, 'put');
+      sinon.stub(webexEU.boundedStorage, 'put');
       services = webex.internal.services;
       servicesEU = webexEU.internal.services;
       catalog = services._getCatalog();
@@ -397,6 +399,7 @@ describe('webex-core', () => {
 
       it('should not attempt to collect catalogs without authorization', (done) => {
         const otherWebex = new WebexCore();
+        sinon.stub(otherWebex.boundedStorage, 'put');
         let {initServiceCatalogs} = otherWebex.internal.services;
 
         initServiceCatalogs = sinon.stub();
@@ -802,6 +805,7 @@ describe('webex-core', () => {
 
     describe('#validateUser()', () => {
       const unauthWebex = new WebexCore();
+      sinon.stub(unauthWebex.boundedStorage, 'put');
       const unauthServices = unauthWebex.internal.services;
       let sandbox = null;
 
@@ -1104,6 +1108,7 @@ describe('webex-core', () => {
 
     describe('#collectPreauthCatalog()', () => {
       const unauthWebex = new WebexCore({config: {credentials: {federation: true}}});
+      sinon.stub(unauthWebex.boundedStorage, 'put');
       const unauthServices = unauthWebex.internal.services;
       const forceRefresh = true;
 
@@ -1158,6 +1163,7 @@ describe('webex-core', () => {
 
     describe('#collectSigninCatalog()', () => {
       const unauthWebex = new WebexCore({config: {credentials: {federation: true}}});
+      sinon.stub(unauthWebex.boundedStorage, 'put');
       const unauthServices = unauthWebex.internal.services;
 
       it('requires an email as the parameter', () =>
diff --git a/packages/@webex/webex-core/test/integration/spec/webex-core.js b/packages/@webex/webex-core/test/integration/spec/webex-core.js
index fe53651b10b..c3b9b6f2608 100644
--- a/packages/@webex/webex-core/test/integration/spec/webex-core.js
+++ b/packages/@webex/webex-core/test/integration/spec/webex-core.js
@@ -15,6 +15,7 @@ describe('webex-core', function () {
 
       before(() => {
         webex = new WebexCore();
+        sinon.stub(webex.boundedStorage, 'put');
       });
 
       it('adds a tracking id to each request', () =>
@@ -108,6 +109,7 @@ describe('webex-core', function () {
 
         sinon.spy(webex.boundedStorage, 'clear');
         sinon.spy(webex.unboundedStorage, 'clear');
+        sinon.stub(webex.boundedStorage, 'put');
 
         return new Promise((resolve) => webex.once('ready', resolve)).then(() => {
           const {supertoken} = webex.credentials;
diff --git a/packages/@webex/webex-core/test/unit/spec/interceptors/payload-transformer.js b/packages/@webex/webex-core/test/unit/spec/interceptors/payload-transformer.js
index 04008ced85f..dc1b71c9b59 100644
--- a/packages/@webex/webex-core/test/unit/spec/interceptors/payload-transformer.js
+++ b/packages/@webex/webex-core/test/unit/spec/interceptors/payload-transformer.js
@@ -5,6 +5,7 @@
 import {assert} from '@webex/test-helper-chai';
 import {capitalize} from 'lodash';
 import WebexCore from '@webex/webex-core';
+import sinon from 'sinon';
 
 describe('webex-core', () => {
   describe('Interceptors', () => {
@@ -113,6 +114,7 @@ describe('webex-core', () => {
             },
           },
         });
+        sinon.stub(webex.boundedStorage, 'put');
       });
 
       describe('#transform()', () => {
diff --git a/packages/@webex/webex-core/test/unit/spec/webex-core.js b/packages/@webex/webex-core/test/unit/spec/webex-core.js
index be0f5681667..3053d3cc380 100644
--- a/packages/@webex/webex-core/test/unit/spec/webex-core.js
+++ b/packages/@webex/webex-core/test/unit/spec/webex-core.js
@@ -13,6 +13,7 @@ describe('Webex', () => {
 
   beforeEach(() => {
     webex = new WebexCore();
+    sinon.stub(webex.boundedStorage, 'put');
   });
 
   describe('#logger', () => {
@@ -60,6 +61,7 @@ describe('Webex', () => {
 
       assert.doesNotThrow(() => {
         webex = new WebexCore();
+        sinon.stub(webex.boundedStorage, 'put');
       });
       assert.isFalse(webex.canAuthorize);
       assert.property(webex, 'credentials');
@@ -107,6 +109,7 @@ describe('Webex', () => {
       .forEach(({msg, data}) => {
         it(msg, () => {
           const webex = new WebexCore(data);
+          sinon.stub(webex.boundedStorage, 'put');
 
           assert.isTrue(webex.credentials.canAuthorize);
           assert.equal(webex.credentials.supertoken.access_token, 'ST');
@@ -146,6 +149,7 @@ describe('Webex', () => {
             access_token: token,
           },
         });
+        sinon.stub(webex.boundedStorage, 'put');
 
         assert.isTrue(webex.credentials.canAuthorize);
         assert.equal(webex.credentials.supertoken.access_token, '1234');
@@ -160,6 +164,7 @@ describe('Webex', () => {
       const config = {credentials: {prop: true}};
 
       const webex = new WebexCore();
+      sinon.stub(webex.boundedStorage, 'put');
 
       assert.isUndefined(webex.config.credentials.prop);
 
@@ -189,6 +194,7 @@ describe('Webex', () => {
         },
       },
     });
+    sinon.stub(webex.boundedStorage, 'put');
 
     assert.isFalse(webex.loaded);
     assert.isFalse(webex.canAuthorize);
@@ -204,6 +210,7 @@ describe('Webex', () => {
 
   it('emits the ready event when the storage layer has loaded and all plugins signal ready', () => {
     const webex = new WebexCore();
+    sinon.stub(webex.boundedStorage, 'put');
 
     assert.isFalse(webex.ready);
 
@@ -228,6 +235,7 @@ describe('Webex', () => {
     );
 
     const webex = new WebexCore();
+    sinon.stub(webex.boundedStorage, 'put');
 
     const changeSpy = sinon.spy();
 
diff --git a/packages/@webex/webex-core/test/unit/spec/webex-internal-core.js b/packages/@webex/webex-core/test/unit/spec/webex-internal-core.js
index 5e3d5945b53..03756cb534d 100644
--- a/packages/@webex/webex-core/test/unit/spec/webex-internal-core.js
+++ b/packages/@webex/webex-core/test/unit/spec/webex-internal-core.js
@@ -24,6 +24,7 @@ describe('Webex', () => {
           },
         },
       });
+      sinon.stub(webex.boundedStorage, 'put');
 
       assert.isTrue(webex.internal.test.config.reachable);
       webex.config.test.reachable = false;
@@ -52,6 +53,7 @@ describe('Webex', () => {
           },
         },
       });
+      sinon.stub(webex.boundedStorage, 'put');
 
       webex.internal.on('all', (ev) =>
         console.info(
diff --git a/packages/legacy/jest/static/index.js b/packages/legacy/jest/static/index.js
index e5716412186..6a3a928deda 100644
--- a/packages/legacy/jest/static/index.js
+++ b/packages/legacy/jest/static/index.js
@@ -11,4 +11,5 @@ module.exports = {
   reporters: ['default'],
   testMatch: ['<rootDir>/test/unit/**/!(lib|fixture)/*.[jt]s'],
   testPathIgnorePatterns: ['/node_modules/', '/dist/'],
+  detectOpenHandles: true,
 };