diff --git a/test/tools/floodbox/promote.test.js b/test/tools/floodbox/promote.test.js
new file mode 100644
index 0000000000..b22a0d14fa
--- /dev/null
+++ b/test/tools/floodbox/promote.test.js
@@ -0,0 +1,108 @@
+import sinon from 'sinon';
+import promoteFiles from '../../../tools/floodbox/promote.js';
+import RequestHandler from '../../../tools/floodbox/request-handler.js';
+
+describe('Promote', () => {
+  const accessToken = 'testToken';
+  const org = 'testOrg';
+  const repo = 'testRepo-pink';
+  const expName = 'testExp';
+  const files = [
+    { path: '/testOrg/testRepo-pink/content/test1.html', ext: 'html' },
+    { path: '/testOrg/testRepo-pink/content/test2.json', ext: 'json' },
+  ];
+  const callback = sinon.spy();
+  let promoteType = 'floodgate';
+  let daFetchStub;
+  let uploadContentStub;
+
+  beforeEach(() => {
+    daFetchStub = sinon.stub(RequestHandler.prototype, 'daFetch');
+    uploadContentStub = sinon.stub(RequestHandler.prototype, 'uploadContent');
+    callback.resetHistory();
+  });
+
+  afterEach(() => {
+    daFetchStub.restore();
+    uploadContentStub.restore();
+  });
+
+  it('should promote files successfully', async () => {
+    daFetchStub.resolves({ ok: true, text: () => 'file content' });
+    uploadContentStub.resolves({ statusCode: 200 });
+
+    await promoteFiles({
+      accessToken, org, repo, promoteType, files, callback,
+    });
+
+    sinon.assert.callCount(daFetchStub, files.length);
+    sinon.assert.callCount(uploadContentStub, files.length);
+    sinon.assert.callCount(callback, files.length);
+    sinon.assert.calledWithMatch(callback, { statusCode: 200 });
+  });
+
+  it('should handle fetch errors', async () => {
+    daFetchStub.resolves({ ok: false, status: 404 });
+
+    await promoteFiles({
+      accessToken, org, repo, promoteType, files, callback,
+    });
+
+    sinon.assert.callCount(daFetchStub, files.length);
+    sinon.assert.callCount(callback, files.length);
+    sinon.assert.calledWithMatch(callback, { statusCode: 404, errorMsg: 'Failed to fetch' });
+  });
+
+  it('should handle upload errors', async () => {
+    daFetchStub.resolves({ ok: true, text: () => 'file content' });
+    uploadContentStub.resolves({ statusCode: 500, errorMsg: 'Failed to upload file' });
+
+    await promoteFiles({
+      accessToken, org, repo, promoteType, files, callback,
+    });
+
+    sinon.assert.callCount(daFetchStub, files.length);
+    sinon.assert.callCount(uploadContentStub, files.length);
+    sinon.assert.callCount(callback, files.length);
+    sinon.assert.calledWithMatch(callback, { statusCode: 500, errorMsg: 'Failed to upload file' });
+  });
+
+  it('should handle blob content', async () => {
+    const blob = new Blob(['file content'], { type: 'application/octet-stream' });
+    daFetchStub.resolves({ ok: true, blob: () => blob });
+    uploadContentStub.resolves({ statusCode: 200 });
+
+    const fileArr = [
+      { path: '/testOrg/testRepo-pink/content/image.png', ext: 'png' },
+    ];
+    await promoteFiles({
+      accessToken, org, repo, promoteType, files: fileArr, callback,
+    });
+
+    sinon.assert.callCount(daFetchStub, fileArr.length);
+    sinon.assert.callCount(uploadContentStub, fileArr.length);
+    sinon.assert.callCount(callback, fileArr.length);
+    sinon.assert.calledWithMatch(callback, { statusCode: 200 });
+  });
+
+  it('should handle promoteType graybox', async () => {
+    daFetchStub.resolves({ ok: true, text: () => 'file content' });
+    uploadContentStub.resolves({ statusCode: 200 });
+
+    promoteType = 'graybox';
+    const gbFiles = [
+      { path: '/testOrg/testRepo-graybox/testExp/content/test1.html', ext: 'html' },
+      { path: '/testOrg/testRepo-graybox/testExp/content/test2.json', ext: 'json' },
+    ];
+    await promoteFiles({
+      accessToken, org, repo: 'testRepo-graybox', expName, promoteType, files: gbFiles, callback,
+    });
+
+    sinon.assert.callCount(daFetchStub, gbFiles.length);
+    sinon.assert.callCount(uploadContentStub, gbFiles.length);
+    sinon.assert.callCount(callback, gbFiles.length);
+    sinon.assert.calledWithMatch(callback, { statusCode: 200 });
+
+    sinon.assert.calledWithMatch(uploadContentStub, '/testOrg/testRepo/content/test1.html');
+  });
+});