Add custom message options for valid-suite-description rule

lib/rules/valid-suite-description.js

@@ -8,9 +8,28 @@
 const astUtils = require('../util/ast');
 const defaultSuiteNames = [ 'describe', 'context', 'suite' ];
 
-module.exports = function (context) {
+function inlineOptions(context) {
     const pattern = new RegExp(context.options[0]);
     const suiteNames = context.options[1] ? context.options[1] : defaultSuiteNames;
+    const message = context.options[2];
+
+    return { pattern, suiteNames, message };
+}
+
+function objectOptions(options) {
+    const pattern = new RegExp(options.pattern);
+    const suiteNames = options.suiteNames ? options.suiteNames : defaultSuiteNames;
+    const message = options.message;
+
+    return { pattern, suiteNames, message };
+}
+
+module.exports = function (context) {
+    const options = context.options[0];
+
+    const { pattern, suiteNames, message } = typeof options === 'object' && !(options instanceof RegExp) ?
+        objectOptions(options) :
+        inlineOptions(context);
 
     function isSuite(node) {
         return node.callee && node.callee.name && suiteNames.indexOf(node.callee.name) > -1;
@@ -40,7 +59,7 @@ module.exports = function (context) {
 
             if (isSuite(node)) {
                 if (!hasValidOrNoSuiteDescription(node)) {
-                    context.report(node, `Invalid "${ callee.name }()" description found.`);
+                    context.report(node, message || `Invalid "${ callee.name }()" description found.`);
                 }
             }
         }