diff --git a/src/data/testimonials.test.ts b/src/data/testimonials.test.ts
new file mode 100644
index 0000000..9432da3
--- /dev/null
+++ b/src/data/testimonials.test.ts
@@ -0,0 +1,44 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest'
+
+const orderMock = vi.fn()
+const selectMock = vi.fn(() => ({ order: orderMock }))
+const fromMock = vi.fn<(table: string) => { select: typeof selectMock }>(() => ({ select: selectMock }))
+const resolveImageUrlMock = vi.fn((path: string) => `https://cdn.example/${path}`)
+
+vi.mock('../lib/supabase', () => ({
+  supabase: { from: (table: string) => fromMock(table) },
+}))
+vi.mock('../lib/resolveImageUrl', () => ({
+  resolveImageUrl: (path: string) => resolveImageUrlMock(path),
+}))
+
+const ROW = { id: 'a1', quote: 'Great!', author: 'Amara T.', avatar_image: 'testimonials/amara.jpg', sort_order: 0 }
+
+import { fetchTestimonials, type Testimonial } from './testimonials'
+
+describe('fetchTestimonials', () => {
+  beforeEach(() => {
+    orderMock.mockReset()
+    selectMock.mockClear()
+    fromMock.mockClear()
+    resolveImageUrlMock.mockClear()
+  })
+
+  it('fetches testimonials ordered by sort_order and maps to the Testimonial shape', async () => {
+    orderMock.mockResolvedValue({ data: [ROW], error: null })
+
+    const testimonials = await fetchTestimonials()
+
+    expect(fromMock).toHaveBeenCalledWith('testimonials')
+    expect(orderMock).toHaveBeenCalledWith('sort_order')
+    expect(resolveImageUrlMock).toHaveBeenCalledWith('testimonials/amara.jpg')
+    expect(testimonials).toEqual<Testimonial[]>([
+      { id: 'a1', quote: 'Great!', author: 'Amara T.', avatarImage: 'https://cdn.example/testimonials/amara.jpg' },
+    ])
+  })
+
+  it('throws when the fetch fails', async () => {
+    orderMock.mockResolvedValue({ data: null, error: { message: 'network error' } })
+    await expect(fetchTestimonials()).rejects.toEqual({ message: 'network error' })
+  })
+})
diff --git a/src/data/testimonials.ts b/src/data/testimonials.ts
new file mode 100644
index 0000000..c62ccda
--- /dev/null
+++ b/src/data/testimonials.ts
@@ -0,0 +1,28 @@
+import { supabase } from '../lib/supabase'
+import { resolveImageUrl } from '../lib/resolveImageUrl'
+
+export interface Testimonial {
+  id: string
+  quote: string
+  author: string
+  avatarImage: string
+}
+
+interface TestimonialRow {
+  id: string
+  quote: string
+  author: string
+  avatar_image: string
+  sort_order: number
+}
+
+export async function fetchTestimonials(): Promise<Testimonial[]> {
+  const { data, error } = await supabase.from('testimonials').select('*').order('sort_order')
+  if (error) throw error
+  return ((data ?? []) as TestimonialRow[]).map((row) => ({
+    id: row.id,
+    quote: row.quote,
+    author: row.author,
+    avatarImage: resolveImageUrl(row.avatar_image),
+  }))
+}