diff --git a/ui/litellm-dashboard/tests/utils/dataUtils.test.ts b/ui/litellm-dashboard/tests/utils/dataUtils.test.ts
new file mode 100644
index 0000000000..425e3843c9
--- /dev/null
+++ b/ui/litellm-dashboard/tests/utils/dataUtils.test.ts
@@ -0,0 +1,269 @@
+import { describe, it, expect, beforeEach, vi, afterEach } from "vitest"
+import { copyToClipboard, formatNumberWithCommas, updateExistingKeys } from "../../src/utils/dataUtils"
+
+// Mock NotificationsManager
+vi.mock("../../src/components/molecules/notifications_manager", () => ({
+  default: {
+    success: vi.fn(),
+    fromBackend: vi.fn(),
+  },
+}))
+
+// Import the mocked module
+import NotificationsManager from "../../src/components/molecules/notifications_manager"
+const mockNotificationsManager = vi.mocked(NotificationsManager)
+
+describe("dataUtils", () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    // Reset document.execCommand mock
+    delete (document as any).execCommand
+  })
+
+  afterEach(() => {
+    vi.restoreAllMocks()
+  })
+
+  describe("updateExistingKeys", () => {
+    it("should update only existing keys in target object", () => {
+      const target = { a: 1, b: 2, c: 3 }
+      const source = { a: 10, b: 20, d: 40 }
+
+      const result = updateExistingKeys(target, source)
+
+      expect(result).toEqual({ a: 10, b: 20, c: 3 })
+      expect(result).not.toBe(target) // Should be a clone
+    })
+
+    it("should not modify original target object", () => {
+      const target = { a: 1, b: 2 }
+      const source = { a: 10, c: 30 }
+
+      updateExistingKeys(target, source)
+
+      expect(target).toEqual({ a: 1, b: 2 }) // Original unchanged
+    })
+
+    it("should handle empty source object", () => {
+      const target = { a: 1, b: 2 }
+      const source = {}
+
+      const result = updateExistingKeys(target, source)
+
+      expect(result).toEqual({ a: 1, b: 2 })
+    })
+  })
+
+  describe("formatNumberWithCommas", () => {
+    it("should format numbers with commas", () => {
+      expect(formatNumberWithCommas(1234567)).toBe("1,234,567")
+      expect(formatNumberWithCommas(1000)).toBe("1,000")
+      expect(formatNumberWithCommas(123)).toBe("123")
+    })
+
+    it("should handle decimals", () => {
+      expect(formatNumberWithCommas(1234.5678, 2)).toBe("1,234.57")
+      expect(formatNumberWithCommas(1000.123, 3)).toBe("1,000.123")
+    })
+
+    it("should handle null and undefined values", () => {
+      expect(formatNumberWithCommas(null)).toBe("-")
+      expect(formatNumberWithCommas(undefined)).toBe("-")
+    })
+
+    it("should handle zero", () => {
+      expect(formatNumberWithCommas(0)).toBe("0")
+      expect(formatNumberWithCommas(0, 2)).toBe("0.00")
+    })
+  })
+
+  describe("copyToClipboard", () => {
+    describe("when Clipboard API is available (HTTPS scenario)", () => {
+      beforeEach(() => {
+        // Mock modern Clipboard API
+        Object.assign(navigator, {
+          clipboard: {
+            writeText: vi.fn().mockResolvedValue(undefined),
+          },
+        })
+      })
+
+      it("should use navigator.clipboard.writeText when available", async () => {
+        const result = await copyToClipboard("test text")
+
+        expect(navigator.clipboard.writeText).toHaveBeenCalledWith("test text")
+        expect(mockNotificationsManager.success).toHaveBeenCalledWith("Copied to clipboard")
+        expect(result).toBe(true)
+      })
+
+      it("should use custom message when provided", async () => {
+        await copyToClipboard("test text", "Custom message")
+
+        expect(mockNotificationsManager.success).toHaveBeenCalledWith("Custom message")
+      })
+
+      it("should return false for null/undefined text", async () => {
+        expect(await copyToClipboard(null)).toBe(false)
+        expect(await copyToClipboard(undefined)).toBe(false)
+        expect(navigator.clipboard.writeText).not.toHaveBeenCalled()
+      })
+
+      it("should fall back to execCommand when clipboard API fails", async () => {
+        // Make clipboard API fail
+        navigator.clipboard.writeText = vi.fn().mockRejectedValue(new Error("Permission denied"))
+
+        // Mock successful execCommand
+        document.execCommand = vi.fn().mockReturnValue(true)
+
+        // Mock DOM methods
+        const mockTextArea = {
+          value: "",
+          style: {},
+          setAttribute: vi.fn(),
+          focus: vi.fn(),
+          select: vi.fn(),
+        }
+        document.createElement = vi.fn().mockReturnValue(mockTextArea)
+        document.body.appendChild = vi.fn()
+        document.body.removeChild = vi.fn()
+
+        const result = await copyToClipboard("test text")
+
+        expect(navigator.clipboard.writeText).toHaveBeenCalledWith("test text")
+        expect(document.execCommand).toHaveBeenCalledWith("copy")
+        expect(mockNotificationsManager.success).toHaveBeenCalledWith("Copied to clipboard")
+        expect(result).toBe(true)
+      })
+    })
+
+    describe("when Clipboard API is not available (HTTP scenario)", () => {
+      beforeEach(() => {
+        // Mock HTTP scenario - no clipboard API
+        Object.assign(navigator, {
+          clipboard: undefined,
+        })
+
+        // Mock successful execCommand
+        document.execCommand = vi.fn().mockReturnValue(true)
+
+        // Mock DOM methods
+        const mockTextArea = {
+          value: "",
+          style: {},
+          setAttribute: vi.fn(),
+          focus: vi.fn(),
+          select: vi.fn(),
+        }
+        document.createElement = vi.fn().mockReturnValue(mockTextArea)
+        document.body.appendChild = vi.fn()
+        document.body.removeChild = vi.fn()
+      })
+
+      it("should fall back to execCommand when clipboard API is not available", async () => {
+        const result = await copyToClipboard("test text")
+
+        expect(document.createElement).toHaveBeenCalledWith("textarea")
+        expect(document.execCommand).toHaveBeenCalledWith("copy")
+        expect(mockNotificationsManager.success).toHaveBeenCalledWith("Copied to clipboard")
+        expect(result).toBe(true)
+      })
+
+      it("should set textarea properties correctly", async () => {
+        const mockTextArea = {
+          value: "",
+          style: {},
+          setAttribute: vi.fn(),
+          focus: vi.fn(),
+          select: vi.fn(),
+        }
+        document.createElement = vi.fn().mockReturnValue(mockTextArea)
+
+        await copyToClipboard("test text")
+
+        expect(mockTextArea.value).toBe("test text")
+        expect(mockTextArea.style.position).toBe("fixed")
+        expect(mockTextArea.style.left).toBe("-999999px")
+        expect(mockTextArea.style.top).toBe("-999999px")
+        expect(mockTextArea.setAttribute).toHaveBeenCalledWith("readonly", "")
+        expect(mockTextArea.focus).toHaveBeenCalled()
+        expect(mockTextArea.select).toHaveBeenCalled()
+      })
+
+      it("should handle execCommand failure", async () => {
+        document.execCommand = vi.fn().mockReturnValue(false)
+
+        const result = await copyToClipboard("test text")
+
+        expect(document.execCommand).toHaveBeenCalledWith("copy")
+        expect(mockNotificationsManager.fromBackend).toHaveBeenCalledWith("Failed to copy to clipboard")
+        expect(result).toBe(false)
+      })
+
+      it("should handle DOM manipulation errors", async () => {
+        document.createElement = vi.fn().mockImplementation(() => {
+          throw new Error("DOM error")
+        })
+
+        const result = await copyToClipboard("test text")
+
+        expect(mockNotificationsManager.fromBackend).toHaveBeenCalledWith("Failed to copy to clipboard")
+        expect(result).toBe(false)
+      })
+
+      it("should clean up textarea element after successful copy", async () => {
+        const mockTextArea = {
+          value: "",
+          style: {},
+          setAttribute: vi.fn(),
+          focus: vi.fn(),
+          select: vi.fn(),
+        }
+        document.createElement = vi.fn().mockReturnValue(mockTextArea)
+
+        await copyToClipboard("test text")
+
+        expect(document.body.appendChild).toHaveBeenCalledWith(mockTextArea)
+        expect(document.body.removeChild).toHaveBeenCalledWith(mockTextArea)
+      })
+    })
+
+    describe("edge cases", () => {
+      beforeEach(() => {
+        // Mock scenario where navigator exists but clipboard is null
+        Object.assign(navigator, {
+          clipboard: null,
+        })
+
+        document.execCommand = vi.fn().mockReturnValue(true)
+        const mockTextArea = {
+          value: "",
+          style: {},
+          setAttribute: vi.fn(),
+          focus: vi.fn(),
+          select: vi.fn(),
+        }
+        document.createElement = vi.fn().mockReturnValue(mockTextArea)
+        document.body.appendChild = vi.fn()
+        document.body.removeChild = vi.fn()
+      })
+
+      it("should handle navigator.clipboard being null", async () => {
+        const result = await copyToClipboard("test text")
+
+        expect(document.execCommand).toHaveBeenCalledWith("copy")
+        expect(result).toBe(true)
+      })
+
+      it("should handle navigator.clipboard.writeText being undefined", async () => {
+        Object.assign(navigator, {
+          clipboard: {}, // clipboard exists but writeText doesn't
+        })
+
+        const result = await copyToClipboard("test text")
+
+        expect(document.execCommand).toHaveBeenCalledWith("copy")
+        expect(result).toBe(true)
+      })
+    })
+  })
+})