Add basic eslint project with working logic

tests/lib/rules/no-classname-with-stylename.js

@@ -0,0 +1,58 @@
+/**
+ * @fileoverview Disallow string className alongwith styleName in the same JSX tag
+ * @author Abhas Bhattacharya
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+var rule = require("../../../lib/rules/no-classname-with-stylename"),
+
+    RuleTester = require("eslint").RuleTester;
+
+
+//------------------------------------------------------------------------------
+// Tests
+//------------------------------------------------------------------------------
+
+var ruleTester = new RuleTester({
+    parserOptions: {
+        "ecmaFeatures": {
+            "jsx": true
+        }
+    }
+});
+ruleTester.run("no-classname-with-stylename", rule, {
+
+    valid: [
+        "<span styleName='my-card' />",
+        "<span className='card' />",
+        "<span className={123} styleName='my-card' />",
+        "<span className={'card'} styleName='my-card' />",
+        "<span className={true ? 'card' : 'no-card'} styleName='my-card' />"
+        // give me some code that won't trigger a warning
+    ],
+
+    invalid: [
+        {
+            code: "<span className='card' styleName={true ? 'my-card' : 'not-my-card'} />",
+            errors: [{
+                // message: "Disallow string className alongwith styleName in the same JSX tag",
+            }]
+        },
+        {
+            code: "<span className styleName='my-card' />",
+            errors: [{
+                // message: "Disallow string className alongwith styleName in the same JSX tag",
+            }]
+        },
+        {
+            code: "<span className='card' styleName='my-card' />",
+            errors: [{
+                // message: "Disallow string className alongwith styleName in the same JSX tag",
+            }]
+        }
+    ]
+});