From 1ce7c7cc8937dba80c6b75f154a6e3dab2855aa5 Mon Sep 17 00:00:00 2001
From: phy <13335561+pjshy@users.noreply.github.com>
Date: Wed, 30 Jan 2019 08:09:18 +0800
Subject: [PATCH] fix(at-range): correct `findInsertionNode` method throw a
 type error when there arg is a Text node (#2498)

---
 packages/slate/src/commands/at-range.js       |  6 ++-
 .../fragment-single-child-block.js            | 37 +++++++++++++++++++
 2 files changed, 42 insertions(+), 1 deletion(-)
 create mode 100644 packages/slate/test/commands/at-current-range/insert-fragment/fragment-single-child-block.js

diff --git a/packages/slate/src/commands/at-range.js b/packages/slate/src/commands/at-range.js
index 37a46a752..6e0290f03 100644
--- a/packages/slate/src/commands/at-range.js
+++ b/packages/slate/src/commands/at-range.js
@@ -808,7 +808,11 @@ Commands.insertFragmentAtRange = (editor, range, fragment) => {
 }
 
 const findInsertionNode = (fragment, document, startKey) => {
-  const hasSingleNode = object => object && object.nodes.size === 1
+  const hasSingleNode = object => {
+    if (!object || object.object === 'text') return
+    return object.nodes.size === 1
+  }
+
   const firstNode = object => object && object.nodes.first()
   let node = fragment
 
diff --git a/packages/slate/test/commands/at-current-range/insert-fragment/fragment-single-child-block.js b/packages/slate/test/commands/at-current-range/insert-fragment/fragment-single-child-block.js
new file mode 100644
index 000000000..c5f57ae90
--- /dev/null
+++ b/packages/slate/test/commands/at-current-range/insert-fragment/fragment-single-child-block.js
@@ -0,0 +1,37 @@
+/** @jsx h */
+
+import h from '../../../helpers/h'
+
+export default function(editor) {
+  editor.insertFragment(
+    <document>
+      <code>
+        <paragraph>2</paragraph>
+      </code>
+    </document>
+  )
+}
+
+export const input = (
+  <value>
+    <document>
+      <code>
+        <paragraph>
+          1<cursor />
+        </paragraph>
+      </code>
+    </document>
+  </value>
+)
+
+export const output = (
+  <value>
+    <document>
+      <code>
+        <paragraph>
+          12<cursor />
+        </paragraph>
+      </code>
+    </document>
+  </value>
+)