chore: add tests for handlerUtils

Author: orinokai

packages/runtime/src/templates/handlerUtils.test.ts

@@ -0,0 +1,52 @@
+import { getPathsForRoute, localizeRoute } from './handlerUtils'
+
+describe('getPathsForRoute', () => {
+  it('transforms / (root level) data routes to /index', () => {
+    expect(getPathsForRoute('/', 'buildId')).toContainEqual(expect.stringMatching(/index.json/))
+  })
+  it('removes the trailing slash from data routes', () => {
+    expect(getPathsForRoute('/foo/', 'buildId')).toContainEqual(expect.stringMatching(/foo.json$/))
+  })
+  it('respects the trailing slash for rsc routes', () => {
+    expect(getPathsForRoute('/foo', 'buildId')).toContainEqual(expect.stringMatching(/foo.rsc$/))
+    expect(getPathsForRoute('/foo/', 'buildId')).toContainEqual(expect.stringMatching(/foo.rsc\/$/))
+  })
+})
+
+describe('localizeRoute', () => {
+  it('returns a non-localized path for the default locale', () => {
+    expect(
+      localizeRoute('/foo', {
+        defaultLocale: 'en',
+        locales: ['en', 'fr', 'de'],
+      }),
+    ).toContain('/foo')
+  })
+  it('returns a localized path for each non-default locale', () => {
+    expect(
+      localizeRoute('/foo', {
+        defaultLocale: 'en',
+        locales: ['en', 'fr', 'de'],
+      }),
+    ).toEqual(expect.arrayContaining(['/fr/foo', '/de/foo']))
+  })
+  it('returns every locale for data routes', () => {
+    expect(
+      localizeRoute(
+        '/foo',
+        {
+          defaultLocale: 'en',
+          locales: ['en', 'fr', 'de'],
+        },
+        true,
+      ),
+    ).toEqual([
+      expect.stringMatching(/\/en\/foo/),
+      expect.stringMatching(/\/fr\/foo/),
+      expect.stringMatching(/\/de\/foo/),
+    ])
+  })
+  it('skips localization if i18n not configured', () => {
+    expect(localizeRoute('/foo')).toEqual(['/foo'])
+  })
+})