diff --git a/plugins/tool.fisheye/index.js b/plugins/tool.fisheye/index.js
index bf03d8074b..a3bf854f86 100644
--- a/plugins/tool.fisheye/index.js
+++ b/plugins/tool.fisheye/index.js
@@ -6,6 +6,7 @@
 const G6 = require('@antv/g6');
 const Util = G6.Util;
 const Fisheye = require('./tool');
+
 class Plugin {
   constructor(options) {
     Util.mix(this, options);
diff --git a/test/unit/plugins/tool.fisheye-spec.js b/test/unit/plugins/tool.fisheye-spec.js
index 606c1bb89b..a1317a2c82 100644
--- a/test/unit/plugins/tool.fisheye-spec.js
+++ b/test/unit/plugins/tool.fisheye-spec.js
@@ -1,7 +1,10 @@
 const G6 = require('../../../src/index');
-const expect = require('chai').expect;
+const chai = require('chai');
+const expect = chai.expect;
 const Simulate = require('event-simulate');
 const Fisheye = require('../../../plugins/tool.fisheye/');
+const chaiAlmost = require('chai-almost');
+chai.use(chaiAlmost());
 
 describe('fisheye test', () => {
   const fisheye = new Fisheye();
@@ -177,7 +180,7 @@ describe('fisheye test', () => {
         clientX: clientPoint.x,
         clientY: clientPoint.y
       });
-      expect([ node1Model.x, node1Model.y ]).eql([ 130, 200 ]);
+      expect([ node1Model.x, node1Model.y ]).to.be.deep.almost([ 130, 200 ], 5);
       expect(div.childNodes.length).not.eql(0);
       done();
     }, 100);