chore: Add example test

Author: znck

packages/babel-sugar-event/src/index.js

@@ -180,12 +180,9 @@ export default function (babel) {
         genModifierCode.push(
           genGuard(
             keyModifiers
-            .filter(keyModifier => !modifiers[keyModifier])
+            .filter(keyModifier => !modifiers.includes(keyModifier))
             .map(keyModifier => genEventExpression(keyModifier + 'Key'))
-            .reduce((acc, item) => {
-              if (acc) return or(acc, item)
-              return acc
-            }),
+            .reduce((acc, item) => acc ? or(acc, item) : item),
           ),
         )
       } else {
@@ -201,7 +198,7 @@ export default function (babel) {
       code.concat(genModifierCode)
     }
 
-    code.concat(
+    code.push(
       t.returnStatement(genCallExpression(expression, [t.identifier('$event')]))
     )
 

packages/babel-sugar-event/test/spec.js

@@ -1 +1,45 @@
-// Nick will take care of this.
+import test from 'ava'
+import {
+  transform
+} from '@babel/core'
+import plugin from '../dist/plugin.testing'
+
+const transpile = src =>
+  new Promise((resolve, reject) => {
+    transform(
+      src, {
+        plugins: [plugin],
+      },
+      (err, result) => {
+        if (err) {
+          return reject(err)
+        }
+        resolve(result.code)
+      },
+    )
+  })
+
+const tests = [{
+  name: 'HTML tag',
+  from: `render(h => <div v-on:click={event => event.ok}>test</div>)`,
+  to: `render(h => h("div", ["test"]));`,
+}]
+
+tests.forEach(({
+  name,
+  from,
+  to
+}) => test(name, async t => t.is(await transpile(from), to)))
+
+test('JSXElement attribute value throws error', t =>
+  new Promise(resolve => {
+    transpile(`render(h => <a key=<b/> />)`)
+      .then(() => {
+        t.fail()
+        resolve()
+      })
+      .catch(e => {
+        t.is(e.message, 'getAttributes (attribute value): JSXElement is not supported')
+        resolve()
+      })
+  }))