diff --git a/packages/ui-components/src/__tests__/DepositDropdown.test.ts b/packages/ui-components/src/__tests__/DepositDropdown.test.ts
new file mode 100644
index 000000000..1c2678892
--- /dev/null
+++ b/packages/ui-components/src/__tests__/DepositDropdown.test.ts
@@ -0,0 +1,95 @@
+import { describe, it, expect, vi } from 'vitest';
+import { render, fireEvent } from '@testing-library/svelte';
+import DepositDropdown from '../lib/components/deployment/DepositDropdown.svelte';
+import type { DotrainOrderGui, GuiDeposit } from '@rainlanguage/orderbook/js_api';
+
+describe('DepositDropdown', () => {
+    const mockTokenInfos = new Map();
+    mockTokenInfos.set('0x123', { name: 'Test Token' });
+
+    const mockDeposit: GuiDeposit = {
+        token: { address: '0x123' },
+        token_name: 'TEST',
+        presets: ['100', '200', '300']
+    } as unknown as GuiDeposit;
+
+    const mockGui = {
+        saveDeposit: vi.fn(),
+        isDepositPreset: vi.fn()
+    };
+
+    it('renders token name correctly', () => {
+        const { getByText } = render(DepositDropdown, {
+            props: {
+                deposit: mockDeposit,
+                gui: mockGui as unknown as DotrainOrderGui,
+                tokenInfos: mockTokenInfos
+            }
+        });
+
+        expect(getByText('Test Token')).toBeTruthy();
+    });
+
+    it('shows "Choose deposit amount" by default', () => {
+        const { getByText } = render(DepositDropdown, {
+            props: {
+                deposit: mockDeposit,
+                gui: mockGui as unknown as DotrainOrderGui,
+                tokenInfos: mockTokenInfos
+            }
+        });
+
+        expect(getByText('Choose deposit amount')).toBeTruthy();
+    });
+
+    it('calls saveDeposit when preset is selected', async () => {
+        mockGui.isDepositPreset.mockReturnValue(true);
+
+        const { getByText } = render(DepositDropdown, {
+            props: {
+                deposit: mockDeposit,
+                gui: mockGui as unknown as DotrainOrderGui,
+                tokenInfos: mockTokenInfos
+            }
+        });
+
+        await fireEvent.click(getByText('Choose deposit amount'));
+        await fireEvent.click(getByText('100'));
+
+        expect(mockGui.saveDeposit).toHaveBeenCalledWith('TEST', '100');
+    });
+
+    it('shows input field when custom value is selected', async () => {
+        mockGui.isDepositPreset.mockReturnValue(false);
+
+        const { getByText, getByPlaceholderText } = render(DepositDropdown, {
+            props: {
+                deposit: mockDeposit,
+                gui: mockGui as unknown as DotrainOrderGui,
+                tokenInfos: mockTokenInfos
+            }
+        });
+
+        await fireEvent.click(getByText('Choose deposit amount'));
+        await fireEvent.click(getByText('Custom value'));
+
+        expect(getByPlaceholderText('Enter deposit amount')).toBeTruthy();
+    });
+
+    it('calls saveDeposit when custom value is entered', async () => {
+        mockGui.isDepositPreset.mockReturnValue(false);
+
+        const { getByPlaceholderText } = render(DepositDropdown, {
+            props: {
+                deposit: mockDeposit,
+                gui: mockGui as unknown as DotrainOrderGui,
+                tokenInfos: mockTokenInfos
+            }
+        });
+
+        const input = getByPlaceholderText('Enter deposit amount');
+        await fireEvent.change(input, { target: { value: '150' } });
+
+        expect(mockGui.saveDeposit).toHaveBeenCalledWith('TEST', '150');
+    });
+});
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