diff --git a/examples/indexeddb/index.html b/examples/indexeddb/index.html
index 9ab44a5e..8b3a4746 100644
--- a/examples/indexeddb/index.html
+++ b/examples/indexeddb/index.html
@@ -18,7 +18,6 @@
     </style>
     <script src="../../y.js"></script>
     <script src='../../../y-websockets-client/y-websockets-client.js'></script>
-    <script src='../../../y-indexeddb/y-indexeddb.js'></script>
     <script src="./index.js"></script>
   </body>
 </html>
diff --git a/test/index.js b/test/index.js
index 869d5b34..8f30d9ae 100644
--- a/test/index.js
+++ b/test/index.js
@@ -1,5 +1,4 @@
 // TODO: include all tests
-
 import './red-black-tree.js'
 import './y-array.tests.js'
 import './y-text.tests.js'
@@ -7,3 +6,4 @@ import './y-map.tests.js'
 import './y-xml.tests.js'
 import './encode-decode.tests.js'
 import './diff.tests.js'
+import './prosemirror.test.js'
diff --git a/test/prosemirror.test.js b/test/prosemirror.test.js
new file mode 100644
index 00000000..0eff2f03
--- /dev/null
+++ b/test/prosemirror.test.js
@@ -0,0 +1,38 @@
+import { test } from '../node_modules/cutest/cutest.mjs'
+import * as random from '../lib/random/random.js'
+import * as Y from '../src/index.js'
+
+import { prosemirrorPlugin, cursorPlugin } from '../bindings/ProsemirrorBinding/ProsemirrorBinding.js'
+import {EditorState} from 'prosemirror-state'
+import {EditorView} from 'prosemirror-view'
+import {Schema, DOMParser, Mark, Fragment, Node, Slice} from 'prosemirror-model'
+import {schema} from 'prosemirror-schema-basic'
+import {exampleSetup} from 'prosemirror-example-setup'
+
+const createNewProsemirrorView = y => {
+  const view = new EditorView(document.createElement('div'), {
+    state: EditorState.create({
+      schema,
+      plugins: exampleSetup({schema}).concat([prosemirrorPlugin(y.define('prosemirror', Y.XmlFragment))])
+    })
+  })
+  return view
+}
+
+test('random prosemirror insertions', async t => {
+  const gen = random.createPRNG(t.getSeed())
+  const y = new Y.Y()
+  const p1 = createNewProsemirrorView(y)
+  const p2 = createNewProsemirrorView(y)
+  for (let i = 0; i < 10; i++) {
+    const p = random.oneOf(gen, [p1, p2])
+    const insertPos = random.int32(gen, 0, p.state.doc.content.size)
+    const overwrite = random.int32(gen, 0, p.state.doc.content.size - insertPos)
+    p.dispatch(p.state.tr.insertText('' + i, insertPos, insertPos + overwrite))
+  }
+  t.compare(
+    p1.state.doc.toJSON(),
+    p2.state.doc.toJSON(),
+    'compare prosemirror models'
+  )
+})