fix some tests

rollup.test.js

@@ -3,7 +3,7 @@ import commonjs from 'rollup-plugin-commonjs'
 import multiEntry from 'rollup-plugin-multi-entry'
 
 export default {
-  input: 'test/y-text.tests.js',
+  input: 'test/index.js',
   name: 'y-tests',
   sourcemap: true,
   output: {

src/Type/YArray.js

@@ -225,6 +225,7 @@ export default class YArray extends Type {
     })
   }
   insert (pos, content) {
+    this._transact(() => {
       let left = null
       let right = this._start
       let count = 0
@@ -248,6 +249,7 @@ export default class YArray extends Type {
         throw new Error('Position exceeds array range!')
       }
       this.insertAfter(left, content)
+    })
   }
   push (content) {
     let n = this._start

test/index.js

@@ -1,5 +1,6 @@
 import './red-black-tree.js'
 import './y-array.tests.js'
+import './y-text.tests.js'
 import './y-map.tests.js'
 import './y-xml.tests.js'
 import './encode-decode.tests.js'