snapshot of https://github.com/ueberdosis/hocuspocus.git @ cf3cfa355b4d3bb61c6b6c80071f71783e32470e (2026-09-15)

tests/provider/observeDeep.ts

@@ -0,0 +1,82 @@
+import test from 'ava'
+import * as Y from 'yjs'
+import { newHocuspocus, newHocuspocusProvider } from '../utils/index.ts'
+import { retryableAssertion } from '../utils/retryableAssertion.ts'
+
+test('observeDeep is called just once', async t => {
+  let count = 0
+
+  const server = await newHocuspocus(t)
+  const provider = newHocuspocusProvider(t, server)
+
+  const type = provider.document.get(
+    'xmlText',
+    Y.XmlText,
+  ) as unknown as Y.XmlText
+
+  // Count how often observeDeep is called …
+  type.observeDeep((events, transaction) => {
+    count += 1
+  })
+
+  // Insert something …
+  type.insert(1, 'a')
+
+  await retryableAssertion(t, tt => {
+    tt.is(count, 1)
+  })
+})
+
+test('observeDeep is called for every single change', async t => {
+  let count = 0
+
+  const server = await newHocuspocus(t)
+  const provider = newHocuspocusProvider(t, server)
+
+  const type = provider.document.get(
+    'xmlText',
+    Y.XmlText,
+  ) as unknown as Y.XmlText
+
+  // Count how often observeDeep is called …
+  type.observeDeep((events, transaction) => {
+    count += 1
+  })
+
+  // Insert something …
+  type.insert(1, 'a')
+  type.insert(2, 'b')
+  type.insert(3, 'c')
+
+  await retryableAssertion(t, tt => {
+    tt.is(count, 3)
+  })
+})
+
+test('observeDeep is called once for a single transaction', async t => {
+  let count = 0
+
+  const server = await newHocuspocus(t)
+  const provider = newHocuspocusProvider(t, server)
+
+  const type = provider.document.get(
+    'xmlText',
+    Y.XmlText,
+  ) as unknown as Y.XmlText
+
+  // Count how often observeDeep is called …
+  type.observeDeep((events, transaction) => {
+    count += 1
+  })
+
+  // Insert something …
+  Y.transact(provider.document, () => {
+    type.insert(1, 'a')
+    type.insert(2, 'b')
+    type.insert(3, 'c')
+  })
+
+  await retryableAssertion(t, tt => {
+    tt.is(count, 1)
+  })
+})