Add office editor provider

tests/resource.test.ts

@@ -0,0 +1,18 @@
+import { describe, expect, it } from 'vitest'
+import { officeResource } from '../src/resource'
+
+describe('office document reference', () => {
+  it('includes the storage location alongside the local file ID', () => {
+    expect(officeResource({ provider: 'default', service: 'personal', collection: 'folder', identifier: 'file' }))
+      .toBe('default:personal:folder:file')
+  })
+
+  it('keeps equal file IDs in different folders distinct', () => {
+    const entity = { provider: 'default', service: 'personal', collection: 'one', identifier: 42 }
+    expect(officeResource(entity)).not.toBe(officeResource({ ...entity, collection: 'two' }))
+  })
+
+  it('rejects an incomplete location instead of sending a bare file ID', () => {
+    expect(() => officeResource({ provider: '', service: 'personal', collection: 'folder', identifier: 'file' })).toThrow()
+  })
+})