fix(valid-title): check if node has arguments first (#436)

Author: G-Rath

src/rules/__tests__/valid-title.test.ts

@@ -9,6 +9,10 @@ const ruleTester = new TSESLint.RuleTester({
 
 ruleTester.run('no-accidental-space', rule, {
   valid: [
+    'it()',
+    'describe()',
+    'it("")',
+    'it.each()()',
     'describe("foo", function () {})',
     'describe(6, function () {})',
     'fdescribe("foo", function () {})',

src/rules/valid-title.ts

@@ -39,6 +39,8 @@ export default createRule({
       CallExpression(node) {
         if (!isDescribe(node) && !isTestCase(node)) return;
 
+        if (!node.arguments.length) return;
+
         const title = getNodeTitle(node);
         if (!title) return;