Fix arrow-parens converter (#347)

Author: Zip753

src/rules/converters/arrow-parens.ts

@@ -2,9 +2,10 @@ import { RuleConverter } from "../converter";
 
 export const convertArrowParens: RuleConverter = tslintRule => {
     const ruleArguments = [
-        tslintRule.ruleArguments.length !== 0 && tslintRule.ruleArguments[0] === "always"
-            ? "always"
-            : "as-needed",
+        tslintRule.ruleArguments.length !== 0 &&
+        tslintRule.ruleArguments[0] === "ban-single-arg-parens"
+            ? "as-needed"
+            : "always",
     ];
 
     return {

src/rules/converters/tests/arrow-parens.test.ts

@@ -6,21 +6,6 @@ describe(convertArrowParens, () => {
             ruleArguments: [],
         });
 
-        expect(result).toEqual({
-            rules: [
-                {
-                    ruleArguments: ["as-needed"],
-                    ruleName: "arrow-parens",
-                },
-            ],
-        });
-    });
-
-    test("conversion with an always argument", () => {
-        const result = convertArrowParens({
-            ruleArguments: ["always"],
-        });
-
         expect(result).toEqual({
             rules: [
                 {
@@ -31,9 +16,9 @@ describe(convertArrowParens, () => {
         });
     });
 
-    test("conversion with an as-needed argument", () => {
+    test("conversion with a ban-single-arg-parens argument", () => {
         const result = convertArrowParens({
-            ruleArguments: ["as-needed"],
+            ruleArguments: ["ban-single-arg-parens"],
         });
 
         expect(result).toEqual({