chore(test): add test for explicit perspective=raw

packages/@sanity/migrate/src/fetch-utils/__test__/sanityRequestOptions.test.ts

@@ -0,0 +1,24 @@
+import {expect, test} from 'vitest'
+
+import {endpoints} from '../endpoints'
+import {toFetchOptions} from '../sanityRequestOptions'
+
+test('toFetchOptions', () => {
+  expect(
+    toFetchOptions({
+      projectId: 'xyz',
+      apiVersion: 'v2025-01-31',
+      apiHost: 'api.sanity.io',
+      endpoint: endpoints.data.query('my-dataset'),
+    }),
+  ).toEqual({
+    init: {
+      headers: {
+        'Content-Type': 'application/json',
+        'User-Agent': '@sanity/[email protected]',
+      },
+      method: 'GET',
+    },
+    url: 'https://xyz.api.sanity.io//v2025-01-31/query/my-dataset?perspective=raw',
+  })
+})