add tests

Author: kurtextrem

tests/async-currenttarget.js

@@ -12,6 +12,10 @@ ruleTester.run('async-currenttarget', rule, {
       code: 'document.addEventListener(async function(event) { event.currentTarget; await delay() })',
       parserOptions: {ecmaVersion: 2017},
     },
+    {
+      code: 'document.addEventListener(async function(event) { const currentTarget = event.currentTarget; await delay(); foo(() => currentTarget) })',
+      parserOptions: {ecmaVersion: 2017},
+    },
   ],
   invalid: [
     {
@@ -24,5 +28,15 @@ ruleTester.run('async-currenttarget', rule, {
         },
       ],
     },
+    {
+      code: 'document.addEventListener(async function(event) { await delay(); foo(() => e.currentTarget) })',
+      parserOptions: {ecmaVersion: 2017},
+      errors: [
+        {
+          message: 'event.currentTarget inside an async function is error prone',
+          type: 'MemberExpression',
+        },
+      ],
+    },
   ],
 })

tests/async-preventdefault.js

@@ -27,5 +27,15 @@ ruleTester.run('async-preventdefault', rule, {
         },
       ],
     },
+    {
+      code: 'document.addEventListener(async function(event) { await delay(); foo(() => event.preventDefault()) })',
+      parserOptions: {ecmaVersion: 2017},
+      errors: [
+        {
+          message: 'event.preventDefault() inside an async function is error prone',
+          type: 'CallExpression',
+        },
+      ],
+    },
   ],
 })