Update: add fixer for wrap-regex (fixes #7013)

docs/rules/wrap-regex.md

@@ -1,5 +1,7 @@
 # Require Regex Literals to be Wrapped (wrap-regex)
 
+(fixable) The `--fix` option on the [command line](../user-guide/command-line-interface#fix) automatically fixes problems reported by this rule.
+
 When a regular expression is used in certain situations, it can end up looking like a division operator. For example:
 
 ```js

lib/rules/wrap-regex.js

@@ -17,7 +17,9 @@ module.exports = {
             recommended: false
         },
 
-        schema: []
+        schema: [],
+
+        fixable: "code"
     },
 
     create(context) {
@@ -36,7 +38,11 @@ module.exports = {
 
                     if (grandparent.type === "MemberExpression" && grandparent.object === node &&
                         (!source || source.value !== "(")) {
-                        context.report(node, "Wrap the regexp literal in parens to disambiguate the slash.");
+                        context.report({
+                            node,
+                            message: "Wrap the regexp literal in parens to disambiguate the slash.",
+                            fix: fixer => fixer.replaceText(node, `(${sourceCode.getText(node)})`)
+                        });
                     }
                 }
             }

tests/lib/rules/wrap-regex.js

@@ -28,10 +28,15 @@ ruleTester.run("wrap-regex", rule, {
         "a[/b/];"
     ],
     invalid: [
-        { code: "/foo/.test(bar);",
-          errors: [{ message: "Wrap the regexp literal in parens to disambiguate the slash.", type: "Literal"}] },
-        { code: "/foo/ig.test(bar);",
-          errors: [{ message: "Wrap the regexp literal in parens to disambiguate the slash.", type: "Literal"}] }
-
+        {
+            code: "/foo/.test(bar);",
+            errors: [{ message: "Wrap the regexp literal in parens to disambiguate the slash.", type: "Literal"}],
+            output: "(/foo/).test(bar);"
+        },
+        {
+            code: "/foo/ig.test(bar);",
+            errors: [{ message: "Wrap the regexp literal in parens to disambiguate the slash.", type: "Literal"}],
+            output: "(/foo/ig).test(bar);"
+        }
     ]
 });