Manually correct 'a11y' in newConverter script (#1139) (#1143)

Author: Josh Goldberg

src/converters/lintConfigs/rules/ruleConverters.ts

@@ -257,6 +257,7 @@ import { convertReactA11yAccessibleHeadings } from "./ruleConverters/react-a11y-
 import { convertReactA11yAnchors } from "./ruleConverters/react-a11y-anchors";
 import { convertReactA11yImageButtonHasAlt } from "./ruleConverters/react-a11y-image-button-has-alt";
 import { convertReactA11yImgHasAlt } from "./ruleConverters/react-a11y-img-has-alt";
+import { convertReactA11yLang } from "./ruleConverters/react-a11y-lang";
 import { convertReactA11yProps } from "./ruleConverters/react-a11y-props";
 import { convertReactA11yRoleHasRequiredAriaProps } from "./ruleConverters/react-a11y-role-has-required-aria-props";
 import { convertReactA11yTabIndexNoPositive } from "./ruleConverters/react-a11y-tabindex-no-positive";
@@ -499,6 +500,7 @@ export const ruleConverters = new Map([
     ["react-a11y-anchors", convertReactA11yAnchors],
     ["react-a11y-image-button-has-alt", convertReactA11yImageButtonHasAlt],
     ["react-a11y-img-has-alt", convertReactA11yImgHasAlt],
+    ["react-a11y-lang", convertReactA11yLang],
     ["react-a11y-props", convertReactA11yProps],
     ["react-a11y-role-has-required-aria-props", convertReactA11yRoleHasRequiredAriaProps],
     ["react-a11y-tabindex-no-positive", convertReactA11yTabIndexNoPositive],

src/converters/lintConfigs/rules/ruleConverters/react-a11y-lang.ts

@@ -0,0 +1,12 @@
+import { RuleConverter } from "../ruleConverter";
+
+export const convertReactA11yLang: RuleConverter = () => {
+    return {
+        plugins: ["jsx-a11y"],
+        rules: [
+            {
+                ruleName: "jsx-a11y/lang",
+            },
+        ],
+    };
+};

src/converters/lintConfigs/rules/ruleConverters/tests/react-a11y-lang.test.ts

@@ -0,0 +1,18 @@
+import { convertReactA11yLang } from "../react-a11y-lang";
+
+describe(convertReactA11yLang, () => {
+    test("conversion without arguments", () => {
+        const result = convertReactA11yLang({
+            ruleArguments: [],
+        });
+
+        expect(result).toEqual({
+            plugins: ["jsx-a11y"],
+            rules: [
+                {
+                    ruleName: "jsx-a11y/lang",
+                },
+            ],
+        });
+    });
+});