Add test cases

Author: golopot

tests/lib/rules/jsx-curly-brace-presence.js

@@ -251,6 +251,15 @@ ruleTester.run('jsx-curly-brace-presence', rule, {
       `,
       options: ['never']
     },
+    {
+      code: `
+        <App prop={\`
+          a
+          b
+        \`} />
+      `,
+      options: ['always']
+    },
     {
       code: `
         <App>
@@ -261,6 +270,15 @@ ruleTester.run('jsx-curly-brace-presence', rule, {
         </App>
       `,
       options: ['never']
+    },
+    {
+      code: `
+        <App>{\`
+          a
+          b
+        \`}</App>
+      `,
+      options: ['always']
     }
   ],