diff --git a/sites/derana.lk/derana.lk.test.js b/sites/derana.lk/derana.lk.test.js
new file mode 100644
index 00000000..d8191b56
--- /dev/null
+++ b/sites/derana.lk/derana.lk.test.js
@@ -0,0 +1,50 @@
+const { parser, url } = require('./derana.lk.config.js')
+const fs = require('fs')
+const path = require('path')
+const dayjs = require('dayjs')
+const utc = require('dayjs/plugin/utc')
+const customParseFormat = require('dayjs/plugin/customParseFormat')
+dayjs.extend(customParseFormat)
+dayjs.extend(utc)
+
+const date = dayjs.utc('2025-05-18', 'YYYY-MM-DD').startOf('d')
+
+it('can generate valid url', () => {
+  expect(url({ date })).toBe('https://derana.lk/api/schedules/18-05-2025')
+})
+
+it('can parse response', () => {
+  const content = fs.readFileSync(path.resolve(__dirname, '__data__/content.json'))
+
+  let results = parser({ content })
+  results = results.map(p => {
+    p.start = p.start.toJSON()
+    p.stop = p.stop.toJSON()
+
+    return p
+  })
+
+  expect(results.length).toBe(20)
+  expect(results[0]).toMatchObject({
+    title: 'Dahami Derana',
+    image: 'https://derana.lk/storage/uploads/imgs/program/51/20240717062206.jpg',
+    start: '2025-05-17T23:05:00.000Z',
+    stop: '2025-05-18T00:55:00.000Z'
+  })
+  expect(results[1]).toMatchObject({
+    title: 'Derana Aruna',
+    image: 'https://derana.lk/storage/uploads/imgs/program/15/20240613075807.jpg',
+    start: '2025-05-18T00:55:00.000Z',
+    stop: '2025-05-18T02:00:00.000Z'
+  })
+})
+
+it('can handle empty guide', () => {
+  const results = parser({
+    content: {
+      error: 'An error occurred'
+    }
+  })
+
+  expect(results).toMatchObject([])
+})