diff --git a/test/modules/issues/autoLabel.js b/test/modules/issues/autoLabel.js
new file mode 100644
index 0000000..b292689
--- /dev/null
+++ b/test/modules/issues/autoLabel.js
@@ -0,0 +1,69 @@
+/**
+ * @file modules/issues/autoLabel.js test case
+ * @author xuexb <fe.xiaowu@gmail.com>
+ */
+
+const expect = require('chai').expect
+const mock = require('mock-require')
+mock.stopAll()
+const clean = require('../../utils/clean')
+
+describe('modules/issues/autoLabel.js', () => {
+  beforeEach('clear node cache', () => {
+    clean('src/github')
+    clean('src/modules/issues/autoLabel')
+
+    mock('../../../src/github', {
+      addLabelsToIssue() {
+      }
+    })
+  })
+
+  it('event name', () => {
+    const autoLabel = require('../../../src/modules/issues/autoLabel')
+    autoLabel(name => {
+      expect(name).to.equal('issues_opened')
+    })
+  })
+
+  it('get label success', (done) => {
+    mock('../../../src/github', {
+      addLabelsToIssue(payload, label) {
+        expect(payload).to.be.a('object').and.not.empty
+        expect(label).to.equal('github-bot')
+        done()
+      }
+    })
+
+    const autoLabel = require('../../../src/modules/issues/autoLabel')
+    autoLabel((name, callback) => {
+      callback({
+        payload: {
+          issue: {
+            body: '我是测试内容\n<!--label:github-bot--><!--label:bot-->测试'
+          }
+        }
+      })
+    })
+  })
+
+  it('get label error', (done) => {
+    mock('../../../src/github', {
+      addLabelsToIssue() {
+        done('error')
+      }
+    })
+
+    const autoLabel = require('../../../src/modules/issues/autoLabel')
+    autoLabel((name, callback) => {
+      callback({
+        payload: {
+          issue: {
+            body: '我是测试内容'
+          }
+        }
+      })
+    })
+    setTimeout(done)
+  })
+})
diff --git a/test/utils.js b/test/utils.js
index d0afd79..226bb3f 100644
--- a/test/utils.js
+++ b/test/utils.js
@@ -14,6 +14,7 @@ describe('utils.js', () => {
       expect(utils.toArray(null)).to.be.null
     })
     it('should return array if not the empty string', () => {
+      expect(utils.toArray(['string'])).to.be.a('array').and.to.deep.equal(['string'])
       expect(utils.toArray('string')).to.be.a('array').and.to.deep.equal(['string'])
     })
   })