Create tests

tests/db/export.test.ts

@@ -0,0 +1,24 @@
+import { execSync } from 'child_process'
+import * as fs from 'fs-extra'
+
+beforeEach(() => {
+  fs.emptyDirSync('tests/__data__/output')
+})
+
+it('can export data as json', () => {
+  execSync(
+    'DATA_DIR=tests/__data__/input/data API_DIR=tests/__data__/output/api npm run db:export',
+    {
+      encoding: 'utf8'
+    }
+  )
+
+  expect(content('output/api/blocklist.json')).toEqual(content('expected/api/blocklist.json'))
+  expect(content('output/api/channels.json')).toEqual(content('expected/api/channels.json'))
+})
+
+function content(filepath: string) {
+  return fs.readFileSync(`tests/__data__/${filepath}`, {
+    encoding: 'utf8'
+  })
+}